diff options
Diffstat (limited to 'activerecord/lib')
138 files changed, 2017 insertions, 1071 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb index 9028970a3d..df7b7be664 100644 --- a/activerecord/lib/active_record.rb +++ b/activerecord/lib/active_record.rb @@ -62,6 +62,7 @@ module ActiveRecord autoload :Serialization autoload :StatementCache autoload :Store + autoload :TableMetadata autoload :Timestamp autoload :Transactions autoload :Translation diff --git a/activerecord/lib/active_record/aggregations.rb b/activerecord/lib/active_record/aggregations.rb index e576ec4d40..1040e6e3bb 100644 --- a/activerecord/lib/active_record/aggregations.rb +++ b/activerecord/lib/active_record/aggregations.rb @@ -230,8 +230,8 @@ module ActiveRecord private def reader_method(name, class_name, mapping, allow_nil, constructor) define_method(name) do - if @aggregation_cache[name].nil? && (!allow_nil || mapping.any? {|key, _| !read_attribute(key).nil? }) - attrs = mapping.collect {|key, _| read_attribute(key)} + if @aggregation_cache[name].nil? && (!allow_nil || mapping.any? {|key, _| !_read_attribute(key).nil? }) + attrs = mapping.collect {|key, _| _read_attribute(key)} object = constructor.respond_to?(:call) ? constructor.call(*attrs) : class_name.constantize.send(constructor, *attrs) diff --git a/activerecord/lib/active_record/association_relation.rb b/activerecord/lib/active_record/association_relation.rb index 5a84792f45..f2b44913db 100644 --- a/activerecord/lib/active_record/association_relation.rb +++ b/activerecord/lib/active_record/association_relation.rb @@ -1,7 +1,7 @@ module ActiveRecord class AssociationRelation < Relation - def initialize(klass, table, association) - super(klass, table) + def initialize(klass, table, predicate_builder, association) + super(klass, table, predicate_builder) @association = association end diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 18da28d480..14af55f327 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -46,12 +46,18 @@ module ActiveRecord end end + class HasOneAssociationPolymorphicThroughError < ActiveRecordError #:nodoc: + def initialize(owner_class_name, reflection) + super("Cannot have a has_one :through association '#{owner_class_name}##{reflection.name}' which goes through the polymorphic association '#{owner_class_name}##{reflection.through_reflection.name}'.") + end + end + class HasManyThroughSourceAssociationNotFoundError < ActiveRecordError #:nodoc: def initialize(reflection) through_reflection = reflection.through_reflection source_reflection_names = reflection.source_reflection_names source_associations = reflection.through_reflection.klass._reflections.keys - super("Could not find the source association(s) #{source_reflection_names.collect{ |a| a.inspect }.to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)} in model #{through_reflection.klass}. Try 'has_many #{reflection.name.inspect}, :through => #{through_reflection.name.inspect}, :source => <name>'. Is it one of #{source_associations.to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)}?") + super("Could not find the source association(s) #{source_reflection_names.collect(&:inspect).to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)} in model #{through_reflection.klass}. Try 'has_many #{reflection.name.inspect}, :through => #{through_reflection.name.inspect}, :source => <name>'. Is it one of #{source_associations.to_sentence(:two_words_connector => ' or ', :last_word_connector => ', or ', :locale => :en)}?") end end @@ -110,6 +116,7 @@ module ActiveRecord autoload :Association, 'active_record/associations/association' autoload :SingularAssociation, 'active_record/associations/singular_association' autoload :CollectionAssociation, 'active_record/associations/collection_association' + autoload :ForeignAssociation, 'active_record/associations/foreign_association' autoload :CollectionProxy, 'active_record/associations/collection_proxy' autoload :BelongsToAssociation, 'active_record/associations/belongs_to_association' @@ -1170,8 +1177,14 @@ module ActiveRecord # Specify the foreign key used for the association. By default this is guessed to be the name # of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_many+ # association will use "person_id" as the default <tt>:foreign_key</tt>. + # [:foreign_type] + # Specify the column used to store the associated object's type, if this is a polymorphic + # association. By default this is guessed to be the name of the polymorphic association + # specified on "as" option with a "_type" suffix. So a class that defines a + # <tt>has_many :tags, as: :taggable</tt> association will use "taggable_type" as the + # default <tt>:foreign_type</tt>. # [:primary_key] - # Specify the method that returns the primary key used for the association. By default this is +id+. + # Specify the name of the column to use as the primary key for the association. By default this is +id+. # [:dependent] # Controls what happens to the associated objects when # their owner is destroyed. Note that these are implemented as @@ -1317,6 +1330,12 @@ module ActiveRecord # Specify the foreign key used for the association. By default this is guessed to be the name # of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_one+ association # will use "person_id" as the default <tt>:foreign_key</tt>. + # [:foreign_type] + # Specify the column used to store the associated object's type, if this is a polymorphic + # association. By default this is guessed to be the name of the polymorphic association + # specified on "as" option with a "_type" suffix. So a class that defines a + # <tt>has_one :tag, as: :taggable</tt> association will use "taggable_type" as the + # default <tt>:foreign_type</tt>. # [:primary_key] # Specify the method that returns the primary key used for the association. By default this is +id+. # [:as] @@ -1694,7 +1713,7 @@ module ActiveRecord hm_options[:through] = middle_reflection.name hm_options[:source] = join_model.right_reflection.name - [:before_add, :after_add, :before_remove, :after_remove, :autosave, :validate, :join_table].each do |k| + [:before_add, :after_add, :before_remove, :after_remove, :autosave, :validate, :join_table, :class_name].each do |k| hm_options[k] = options[k] if options.key? k end diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index a6a1947148..f9c9f8afda 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -56,21 +56,11 @@ module ActiveRecord @connection = connection end - def aliased_table_for(table_name, aliased_name) - table_alias = aliased_name_for(table_name, aliased_name) - - if table_alias == table_name - Arel::Table.new(table_name) - else - Arel::Table.new(table_name).alias(table_alias) - end - end - - def aliased_name_for(table_name, aliased_name) + def aliased_table_for(table_name, aliased_name, **table_options) if aliases[table_name].zero? # If it's zero, we can have our table_name aliases[table_name] = 1 - table_name + Arel::Table.new(table_name, table_options) else # Otherwise, we need to use an alias aliased_name = connection.table_alias_for(aliased_name) @@ -78,11 +68,12 @@ module ActiveRecord # Update the count aliases[aliased_name] += 1 - if aliases[aliased_name] > 1 + table_alias = if aliases[aliased_name] > 1 "#{truncate(aliased_name)}_#{aliases[aliased_name]}" else aliased_name end + Arel::Table.new(table_name, table_options).alias(table_alias) end end diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb index f1c36cd047..0d8e4ba870 100644 --- a/activerecord/lib/active_record/associations/association.rb +++ b/activerecord/lib/active_record/associations/association.rb @@ -121,7 +121,7 @@ module ActiveRecord # Can be overridden (i.e. in ThroughAssociation) to merge in other scopes (i.e. the # through association's scope) def target_scope - AssociationRelation.create(klass, klass.arel_table, self).merge!(klass.all) + AssociationRelation.create(klass, klass.arel_table, klass.predicate_builder, self).merge!(klass.all) end # Loads the \target if needed and returns it. diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index b965230e60..53f65920e1 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -10,9 +10,8 @@ module ActiveRecord @block = block end - def bind_value(scope, column, value, alias_tracker) - substitute = alias_tracker.connection.substitute_at( - column, scope.bind_values.length) + def bind_value(scope, column, value, connection) + substitute = connection.substitute_at(column) scope.bind_values += [[column, @block.call(value)]] substitute end @@ -67,7 +66,8 @@ module ActiveRecord chain.map do |reflection| alias_tracker.aliased_table_for( table_name_for(reflection, klass, refl), - table_alias_for(reflection, refl, reflection != refl) + table_alias_for(reflection, refl, reflection != refl), + type_caster: klass.type_caster, ) end end @@ -82,38 +82,38 @@ module ActiveRecord table.create_join(table, table.create_on(constraint), join_type) end - def column_for(table_name, column_name, alias_tracker) - columns = alias_tracker.connection.schema_cache.columns_hash(table_name) + def column_for(table_name, column_name, connection) + columns = connection.schema_cache.columns_hash(table_name) columns[column_name] end - def bind_value(scope, column, value, alias_tracker) - @bind_substitution.bind_value scope, column, value, alias_tracker + def bind_value(scope, column, value, connection) + @bind_substitution.bind_value scope, column, value, connection end - def bind(scope, table_name, column_name, value, tracker) - column = column_for table_name, column_name, tracker - bind_value scope, column, value, tracker + def bind(scope, table_name, column_name, value, connection) + column = column_for table_name, column_name, connection + bind_value scope, column, value, connection end - def last_chain_scope(scope, table, reflection, owner, tracker, assoc_klass) + def last_chain_scope(scope, table, reflection, owner, connection, assoc_klass) join_keys = reflection.join_keys(assoc_klass) key = join_keys.key foreign_key = join_keys.foreign_key - bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], tracker + bind_val = bind scope, table.table_name, key.to_s, owner[foreign_key], connection scope = scope.where(table[key].eq(bind_val)) if reflection.type value = owner.class.base_class.name - bind_val = bind scope, table.table_name, reflection.type, value, tracker + bind_val = bind scope, table.table_name, reflection.type, value, connection scope = scope.where(table[reflection.type].eq(bind_val)) else scope end end - def next_chain_scope(scope, table, reflection, tracker, assoc_klass, foreign_table, next_reflection) + def next_chain_scope(scope, table, reflection, connection, assoc_klass, foreign_table, next_reflection) join_keys = reflection.join_keys(assoc_klass) key = join_keys.key foreign_key = join_keys.foreign_key @@ -122,7 +122,7 @@ module ActiveRecord if reflection.type value = next_reflection.klass.base_class.name - bind_val = bind scope, table.table_name, reflection.type, value, tracker + bind_val = bind scope, table.table_name, reflection.type, value, connection scope = scope.where(table[reflection.type].eq(bind_val)) end @@ -132,19 +132,20 @@ module ActiveRecord def add_constraints(scope, owner, assoc_klass, refl, tracker) chain = refl.chain scope_chain = refl.scope_chain + connection = tracker.connection tables = construct_tables(chain, assoc_klass, refl, tracker) owner_reflection = chain.last table = tables.last - scope = last_chain_scope(scope, table, owner_reflection, owner, tracker, assoc_klass) + scope = last_chain_scope(scope, table, owner_reflection, owner, connection, assoc_klass) chain.each_with_index do |reflection, i| table, foreign_table = tables.shift, tables.first unless reflection == chain.last next_reflection = chain[i + 1] - scope = next_chain_scope(scope, table, reflection, tracker, assoc_klass, foreign_table, next_reflection) + scope = next_chain_scope(scope, table, reflection, connection, assoc_klass, foreign_table, next_reflection) end is_first_chain = i == 0 diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index 81fdd681de..c63b42e2a0 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -73,11 +73,11 @@ module ActiveRecord # Checks whether record is different to the current target, without loading it def different_target?(record) - record.id != owner[reflection.foreign_key] + record.id != owner._read_attribute(reflection.foreign_key) end def replace_keys(record) - owner[reflection.foreign_key] = record[reflection.association_primary_key(record.class)] + owner[reflection.foreign_key] = record._read_attribute(reflection.association_primary_key(record.class)) end def remove_keys @@ -85,7 +85,7 @@ module ActiveRecord end def foreign_key_present? - owner[reflection.foreign_key] + owner._read_attribute(reflection.foreign_key) end # NOTE - for now, we're only supporting inverse setting from belongs_to back onto @@ -99,12 +99,13 @@ module ActiveRecord if options[:primary_key] owner.send(reflection.name).try(:id) else - owner[reflection.foreign_key] + owner._read_attribute(reflection.foreign_key) end end def stale_state - owner[reflection.foreign_key] && owner[reflection.foreign_key].to_s + result = owner._read_attribute(reflection.foreign_key) + result && result.to_s end end end diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb index 34a555dfd4..092b4ebd2f 100644 --- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb @@ -11,7 +11,7 @@ module ActiveRecord::Associations::Builder end def join_table - @join_table ||= [@lhs_class.table_name, klass.table_name].sort.join("\0").gsub(/^(.*[._])(.+)\0\1(.+)/, '\1\2_\3').gsub("\0", "_") + @join_table ||= [@lhs_class.table_name, klass.table_name].sort.join("\0").gsub(/^(.*[._])(.+)\0\1(.+)/, '\1\2_\3').tr("\0", "_") end private @@ -98,7 +98,7 @@ module ActiveRecord::Associations::Builder def middle_options(join_model) middle_options = {} - middle_options[:class] = join_model + middle_options[:class_name] = "#{lhs_model.name}::#{join_model.name}" middle_options[:source] = join_model.left_reflection.name if options.key? :foreign_key middle_options[:foreign_key] = options[:foreign_key] @@ -110,7 +110,7 @@ module ActiveRecord::Associations::Builder rhs_options = {} if options.key? :class_name - rhs_options[:foreign_key] = options[:class_name].foreign_key + rhs_options[:foreign_key] = options[:class_name].to_s.foreign_key rhs_options[:class_name] = options[:class_name] end diff --git a/activerecord/lib/active_record/associations/builder/has_many.rb b/activerecord/lib/active_record/associations/builder/has_many.rb index 4c8c826f76..1b87f92170 100644 --- a/activerecord/lib/active_record/associations/builder/has_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_many.rb @@ -5,7 +5,7 @@ module ActiveRecord::Associations::Builder end def valid_options - super + [:primary_key, :dependent, :as, :through, :source, :source_type, :inverse_of, :counter_cache, :join_table] + super + [:primary_key, :dependent, :as, :through, :source, :source_type, :inverse_of, :counter_cache, :join_table, :foreign_type] end def self.valid_dependent_options diff --git a/activerecord/lib/active_record/associations/builder/has_one.rb b/activerecord/lib/active_record/associations/builder/has_one.rb index c194c8ae9a..1387717396 100644 --- a/activerecord/lib/active_record/associations/builder/has_one.rb +++ b/activerecord/lib/active_record/associations/builder/has_one.rb @@ -5,7 +5,7 @@ module ActiveRecord::Associations::Builder end def valid_options - valid = super + [:as] + valid = super + [:as, :foreign_type] valid += [:through, :source, :source_type] if options[:through] valid end diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 1836ff0910..16b1228b8a 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -33,7 +33,13 @@ module ActiveRecord reload end - @proxy ||= CollectionProxy.create(klass, self) + if owner.new_record? + # Cache the proxy separately before the owner has an id + # or else a post-save proxy will still lack the id + @new_record_proxy ||= CollectionProxy.create(klass, self) + else + @proxy ||= CollectionProxy.create(klass, self) + end end # Implements the writer method, e.g. foo.items= for Foo.has_many :items @@ -56,9 +62,9 @@ module ActiveRecord # Implements the ids writer method, e.g. foo.item_ids= for Foo.has_many :items def ids_writer(ids) pk_type = reflection.primary_key_type - ids = Array(ids).reject { |id| id.blank? } + ids = Array(ids).reject(&:blank?) ids.map! { |i| pk_type.type_cast_from_user(i) } - replace(klass.find(ids).index_by { |r| r.id }.values_at(*ids)) + replace(klass.find(ids).index_by(&:id).values_at(*ids)) end def reset @@ -169,8 +175,8 @@ module ActiveRecord end # Removes all records from the association without calling callbacks - # on the associated records. It honors the `:dependent` option. However - # if the `:dependent` value is `:destroy` then in that case the `:delete_all` + # on the associated records. It honors the +:dependent+ option. However + # if the +:dependent+ value is +:destroy+ then in that case the +:delete_all+ # deletion strategy for the association is applied. # # You can force a particular deletion strategy by passing a parameter. @@ -283,7 +289,7 @@ module ActiveRecord elsif !loaded? && !association_scope.group_values.empty? load_target.size elsif !loaded? && !association_scope.distinct_value && target.is_a?(Array) - unsaved_records = target.select { |r| r.new_record? } + unsaved_records = target.select(&:new_record?) unsaved_records.size + count_records else count_records @@ -352,6 +358,7 @@ module ActiveRecord if owner.new_record? replace_records(other_array, original_target) else + replace_common_records_in_memory(other_array, original_target) if other_array != original_target transaction { replace_records(other_array, original_target) } end @@ -379,11 +386,18 @@ module ActiveRecord target end - def add_to_target(record, skip_callbacks = false) + def add_to_target(record, skip_callbacks = false, &block) + if association_scope.distinct_value + index = @target.index(record) + end + replace_on_target(record, index, skip_callbacks, &block) + end + + def replace_on_target(record, index, skip_callbacks) callback(:before_add, record) unless skip_callbacks yield(record) if block_given? - if association_scope.distinct_value && index = @target.index(record) + if index @target[index] = record else @target << record @@ -407,7 +421,13 @@ module ActiveRecord private def get_records - return scope.to_a if reflection.scope_chain.any?(&:any?) || scope.eager_loading? + if reflection.scope_chain.any?(&:any?) || + scope.eager_loading? || + klass.current_scope || + klass.default_scopes.any? + + return scope.to_a + end conn = klass.connection sc = reflection.association_scope_cache(conn, owner) do @@ -486,7 +506,7 @@ module ActiveRecord def delete_or_destroy(records, method) records = records.flatten records.each { |record| raise_on_type_mismatch!(record) } - existing_records = records.reject { |r| r.new_record? } + existing_records = records.reject(&:new_record?) if existing_records.empty? remove_records(existing_records, records, method) @@ -522,6 +542,14 @@ module ActiveRecord target end + def replace_common_records_in_memory(new_target, original_target) + common_records = new_target & original_target + common_records.each do |record| + skip_callbacks = true + replace_on_target(record, @target.index(record), skip_callbacks) + end + end + def concat_records(records, should_raise = false) result = true @@ -569,8 +597,8 @@ module ActiveRecord if reflection.is_a?(ActiveRecord::Reflection::ThroughReflection) assoc = owner.association(reflection.through_reflection.name) assoc.reader.any? { |source| - target = source.send(reflection.source_reflection.name) - target.respond_to?(:include?) ? target.include?(record) : target == record + target_reflection = source.send(reflection.source_reflection.name) + target_reflection.respond_to?(:include?) ? target_reflection.include?(record) : target_reflection == record } || target.include?(record) else target.include?(record) @@ -581,7 +609,7 @@ module ActiveRecord # specified, then #find scans the entire collection. def find_by_scan(*args) expects_array = args.first.kind_of?(Array) - ids = args.flatten.compact.map{ |arg| arg.to_s }.uniq + ids = args.flatten.compact.map(&:to_s).uniq if ids.size == 1 id = ids.first diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index 8c7b0b4be9..dc42b19a83 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -29,10 +29,11 @@ module ActiveRecord # instantiation of the actual post records. class CollectionProxy < Relation delegate(*(ActiveRecord::Calculations.public_instance_methods - [:count]), to: :scope) + delegate :find_nth, to: :scope def initialize(klass, association) #:nodoc: @association = association - super klass, klass.arel_table + super klass, klass.arel_table, klass.predicate_builder merge! association.scope(nullify: false) end @@ -355,14 +356,15 @@ module ActiveRecord @association.replace(other_array) end - # Deletes all the records from the collection. For +has_many+ associations, - # the deletion is done according to the strategy specified by the <tt>:dependent</tt> - # option. + # Deletes all the records from the collection according to the strategy + # specified by the +:dependent+ option. If no +:dependent+ option is given, + # then it will follow the default strategy. # - # If no <tt>:dependent</tt> option is given, then it will follow the - # default strategy. The default strategy is <tt>:nullify</tt>. This - # sets the foreign keys to <tt>NULL</tt>. For, +has_many+ <tt>:through</tt>, - # the default strategy is +delete_all+. + # For +has_many :through+ associations, the default deletion strategy is + # +:delete_all+. + # + # For +has_many+ associations, the default deletion strategy is +:nullify+. + # This sets the foreign keys to +NULL+. # # class Person < ActiveRecord::Base # has_many :pets # dependent: :nullify option by default @@ -393,9 +395,9 @@ module ActiveRecord # # #<Pet id: 3, name: "Choo-Choo", person_id: nil> # # ] # - # If it is set to <tt>:destroy</tt> all the objects from the collection - # are removed by calling their +destroy+ method. See +destroy+ for more - # information. + # Both +has_many+ and +has_many :through+ dependencies default to the + # +:delete_all+ strategy if the +:dependent+ option is set to +:destroy+. + # Records are not instantiated and callbacks will not be fired. # # class Person < ActiveRecord::Base # has_many :pets, dependent: :destroy @@ -410,11 +412,6 @@ module ActiveRecord # # ] # # person.pets.delete_all - # # => [ - # # #<Pet id: 1, name: "Fancy-Fancy", person_id: 1>, - # # #<Pet id: 2, name: "Spook", person_id: 1>, - # # #<Pet id: 3, name: "Choo-Choo", person_id: 1> - # # ] # # Pet.find(1, 2, 3) # # => ActiveRecord::RecordNotFound @@ -443,8 +440,9 @@ module ActiveRecord end # Deletes the records of the collection directly from the database - # ignoring the +:dependent+ option. It invokes +before_remove+, - # +after_remove+ , +before_destroy+ and +after_destroy+ callbacks. + # ignoring the +:dependent+ option. Records are instantiated and it + # invokes +before_remove+, +after_remove+ , +before_destroy+ and + # +after_destroy+ callbacks. # # class Person < ActiveRecord::Base # has_many :pets diff --git a/activerecord/lib/active_record/associations/foreign_association.rb b/activerecord/lib/active_record/associations/foreign_association.rb new file mode 100644 index 0000000000..fe48ecec29 --- /dev/null +++ b/activerecord/lib/active_record/associations/foreign_association.rb @@ -0,0 +1,11 @@ +module ActiveRecord::Associations + module ForeignAssociation + def foreign_key_present? + if reflection.klass.primary_key + owner.attribute_present?(reflection.active_record_primary_key) + else + false + end + end + end +end diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 1413efaf7f..d7f655d00c 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -6,6 +6,7 @@ module ActiveRecord # If the association has a <tt>:through</tt> option further specialization # is provided by its child HasManyThroughAssociation. class HasManyAssociation < CollectionAssociation #:nodoc: + include ForeignAssociation def handle_dependency case options[:dependent] @@ -66,7 +67,7 @@ module ActiveRecord # the loaded flag is set to true as well. def count_records count = if has_cached_counter? - owner.read_attribute cached_counter_attribute_name + owner._read_attribute cached_counter_attribute_name else scope.count end @@ -153,14 +154,6 @@ module ActiveRecord end end - def foreign_key_present? - if reflection.klass.primary_key - owner.attribute_present?(reflection.association_primary_key) - else - false - end - end - def concat_records(records, *) update_counter_if_success(super, records.length) end diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index 0968b0068e..7a050ca224 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord # = Active Record Has Many Through Association module Associations @@ -11,21 +13,6 @@ module ActiveRecord @through_association = nil end - # Returns the size of the collection by executing a SELECT COUNT(*) query - # if the collection hasn't been loaded, and by calling collection.size if - # it has. If the collection will likely have a size greater than zero, - # and if fetching the collection will be needed afterwards, one less - # SELECT query will be generated by using #length instead. - def size - if has_cached_counter? - owner.read_attribute cached_counter_attribute_name(reflection) - elsif loaded? - target.size - else - super - end - end - def concat(*records) unless owner.new_record? records.flatten.each do |record| @@ -63,11 +50,12 @@ module ActiveRecord save_through_record(record) if has_cached_counter? && !through_reflection_updates_counter_cache? - ActiveSupport::Deprecation.warn \ - "Automatic updating of counter caches on through associations has been " \ - "deprecated, and will be removed in Rails 5.0. Instead, please set the " \ - "appropriate counter_cache options on the has_many and belongs_to for " \ - "your associations to #{through_reflection.name}." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Automatic updating of counter caches on through associations has been + deprecated, and will be removed in Rails 5. Instead, please set the + appropriate `counter_cache` options on the `has_many` and `belongs_to` + for your associations to #{through_reflection.name}. + MSG update_counter_in_database(1) end @@ -158,13 +146,11 @@ module ActiveRecord if scope.klass.primary_key count = scope.destroy_all.length else - scope.to_a.each do |record| - record.run_callbacks :destroy - end + scope.each(&:_run_destroy_callbacks) arel = scope.arel - stmt = Arel::DeleteManager.new arel.engine + stmt = Arel::DeleteManager.new stmt.from scope.klass.arel_table stmt.wheres = arel.constraints diff --git a/activerecord/lib/active_record/associations/has_one_association.rb b/activerecord/lib/active_record/associations/has_one_association.rb index e6095d84dc..74b8c53758 100644 --- a/activerecord/lib/active_record/associations/has_one_association.rb +++ b/activerecord/lib/active_record/associations/has_one_association.rb @@ -2,6 +2,7 @@ module ActiveRecord # = Active Record Belongs To Has One Association module Associations class HasOneAssociation < SingularAssociation #:nodoc: + include ForeignAssociation def handle_dependency case options[:dependent] diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index ec5c189cd3..66e997c3c8 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -20,7 +20,7 @@ module ActiveRecord end def columns - @tables.flat_map { |t| t.column_aliases } + @tables.flat_map(&:column_aliases) end # An array of [column_name, alias] pairs for the table @@ -94,7 +94,7 @@ module ActiveRecord # def initialize(base, associations, joins) @alias_tracker = AliasTracker.create(base.connection, joins) - @alias_tracker.aliased_name_for(base.table_name, base.table_name) # Updates the count for base.table_name to 1 + @alias_tracker.aliased_table_for(base.table_name, base.table_name, type_caster: base.type_caster) # Updates the count for base.table_name to 1 tree = self.class.make_tree associations @join_root = JoinBase.new base, build(tree, base) @join_root.children.each { |child| construct_tables! @join_root, child } @@ -142,11 +142,20 @@ module ActiveRecord parents = model_cache[join_root] column_aliases = aliases.column_aliases join_root - result_set.each { |row_hash| - parent = parents[row_hash[primary_key]] ||= join_root.instantiate(row_hash, column_aliases) - construct(parent, join_root, row_hash, result_set, seen, model_cache, aliases) + message_bus = ActiveSupport::Notifications.instrumenter + + payload = { + record_count: result_set.length, + class_name: join_root.base_klass.name } + message_bus.instrument('instantiation.active_record', payload) do + result_set.each { |row_hash| + parent = parents[row_hash[primary_key]] ||= join_root.instantiate(row_hash, column_aliases) + construct(parent, join_root, row_hash, result_set, seen, model_cache, aliases) + } + end + parents.values end @@ -177,9 +186,13 @@ module ActiveRecord def table_aliases_for(parent, node) node.reflection.chain.map { |reflection| + if reflection.klass + type_caster = reflection.klass.type_caster + end alias_tracker.aliased_table_for( reflection.table_name, - table_alias_for(reflection, parent, reflection != node.reflection) + table_alias_for(reflection, parent, reflection != node.reflection), + type_caster: type_caster, ) } end @@ -248,6 +261,7 @@ module ActiveRecord construct(model, node, row, rs, seen, model_cache, aliases) else model = construct_model(ar_parent, node, row, model_cache, id, aliases) + model.readonly! seen[parent.base_klass][primary_id][node.base_klass][id] = model construct(model, node, row, rs, seen, model_cache, aliases) end diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb index e7d3c9ba40..c1ef86a95b 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -43,16 +43,23 @@ module ActiveRecord constraint = build_constraint(klass, table, key, foreign_table, foreign_key) + predicate_builder = PredicateBuilder.new(TableMetadata.new(klass, table)) scope_chain_items = scope_chain[scope_chain_index].map do |item| if item.is_a?(Relation) item else - ActiveRecord::Relation.create(klass, table).instance_exec(node, &item) + ActiveRecord::Relation.create(klass, table, predicate_builder) + .instance_exec(node, &item) end end scope_chain_index += 1 - scope_chain_items.concat [klass.send(:build_default_scope, ActiveRecord::Relation.create(klass, table))].compact + relation = ActiveRecord::Relation.create( + klass, + table, + predicate_builder, + ) + scope_chain_items.concat [klass.send(:build_default_scope, relation)].compact rel = scope_chain_items.inject(scope_chain_items.shift) do |left, right| left.merge right @@ -67,7 +74,7 @@ module ActiveRecord value = foreign_klass.base_class.name column = klass.columns_hash[reflection.type.to_s] - substitute = klass.connection.substitute_at(column, bind_values.length) + substitute = klass.connection.substitute_at(column) bind_values.push [column, value] constraint = constraint.and table[reflection.type].eq substitute end diff --git a/activerecord/lib/active_record/associations/join_dependency/join_part.rb b/activerecord/lib/active_record/associations/join_dependency/join_part.rb index 91e1c6a9d7..9c6573f913 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_part.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_part.rb @@ -19,7 +19,6 @@ module ActiveRecord def initialize(base_klass, children) @base_klass = base_klass - @column_names_with_alias = nil @children = children end diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 7519fec10a..4358f3b581 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -2,33 +2,42 @@ module ActiveRecord module Associations # Implements the details of eager loading of Active Record associations. # - # Note that 'eager loading' and 'preloading' are actually the same thing. - # However, there are two different eager loading strategies. + # Suppose that you have the following two Active Record models: # - # The first one is by using table joins. This was only strategy available - # prior to Rails 2.1. Suppose that you have an Author model with columns - # 'name' and 'age', and a Book model with columns 'name' and 'sales'. Using - # this strategy, Active Record would try to retrieve all data for an author - # and all of its books via a single query: + # class Author < ActiveRecord::Base + # # columns: name, age + # has_many :books + # end # - # SELECT * FROM authors - # LEFT OUTER JOIN books ON authors.id = books.author_id - # WHERE authors.name = 'Ken Akamatsu' + # class Book < ActiveRecord::Base + # # columns: title, sales + # end # - # However, this could result in many rows that contain redundant data. After - # having received the first row, we already have enough data to instantiate - # the Author object. In all subsequent rows, only the data for the joined - # 'books' table is useful; the joined 'authors' data is just redundant, and - # processing this redundant data takes memory and CPU time. The problem - # quickly becomes worse and worse as the level of eager loading increases - # (i.e. if Active Record is to eager load the associations' associations as - # well). + # When you load an author with all associated books Active Record will make + # multiple queries like this: + # + # Author.includes(:books).where(:name => ['bell hooks', 'Homer').to_a + # + # => SELECT `authors`.* FROM `authors` WHERE `name` IN ('bell hooks', 'Homer') + # => SELECT `books`.* FROM `books` WHERE `author_id` IN (2, 5) + # + # Active Record saves the ids of the records from the first query to use in + # the second. Depending on the number of associations involved there can be + # arbitrarily many SQL queries made. + # + # However, if there is a WHERE clause that spans across tables Active + # Record will fall back to a slightly more resource-intensive single query: + # + # Author.includes(:books).where(books: {title: 'Illiad'}).to_a + # => SELECT `authors`.`id` AS t0_r0, `authors`.`name` AS t0_r1, `authors`.`age` AS t0_r2, + # `books`.`id` AS t1_r0, `books`.`title` AS t1_r1, `books`.`sales` AS t1_r2 + # FROM `authors` + # LEFT OUTER JOIN `books` ON `authors`.`id` = `books`.`author_id` + # WHERE `books`.`title` = 'Illiad' + # + # This could result in many rows that contain redundant data and it performs poorly at scale + # and is therefore only used when necessary. # - # The second strategy is to use multiple database queries, one for each - # level of association. Since Rails 2.1, this is the default strategy. In - # situations where a table join is necessary (e.g. when the +:conditions+ - # option references an association's column), it will fallback to the table - # join strategy. class Preloader #:nodoc: extend ActiveSupport::Autoload @@ -169,6 +178,7 @@ module ActiveRecord class NullPreloader def self.new(klass, owners, reflection, preload_scope); self; end def self.run(preloader); end + def self.preloaded_records; []; end end def preloader_for(reflection, owners, rhs_klass) diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb index c0639742be..a6e1a24360 100644 --- a/activerecord/lib/active_record/associations/preloader/association.rb +++ b/activerecord/lib/active_record/associations/preloader/association.rb @@ -33,7 +33,7 @@ module ActiveRecord end def query_scope(ids) - scope.where(association_key.in(ids)) + scope.where(association_key_name => ids) end def table @@ -142,14 +142,8 @@ module ActiveRecord scope._select! preload_values[:select] || values[:select] || table[Arel.star] scope.includes! preload_values[:includes] || values[:includes] - - if preload_values.key? :order - scope.order! preload_values[:order] - else - if values.key? :order - scope.order! values[:order] - end - end + scope.joins! preload_values[:joins] || values[:joins] + scope.order! preload_values[:order] || values[:order] if preload_values[:readonly] || values[:readonly] scope.readonly! @@ -159,6 +153,7 @@ module ActiveRecord scope.where!(klass.table_name => { reflection.type => model.base_class.sti_name }) end + scope.unscope_values = Array(values[:unscope]) klass.default_scoped.merge(scope) end end diff --git a/activerecord/lib/active_record/associations/preloader/has_many_through.rb b/activerecord/lib/active_record/associations/preloader/has_many_through.rb index 7b37b5942d..2029871f39 100644 --- a/activerecord/lib/active_record/associations/preloader/has_many_through.rb +++ b/activerecord/lib/active_record/associations/preloader/has_many_through.rb @@ -8,7 +8,7 @@ module ActiveRecord records_by_owner = super if reflection_scope.distinct_value - records_by_owner.each_value { |records| records.uniq! } + records_by_owner.each_value(&:uniq!) end records_by_owner diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index d57da366bd..12bf3ef138 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -81,6 +81,7 @@ module ActiveRecord unless reflection_scope.where_values.empty? scope.includes_values = Array(reflection_scope.values[:includes] || options[:source]) scope.where_values = reflection_scope.values[:where] + scope.bind_values = reflection_scope.bind_values end scope.references! reflection_scope.values[:references] diff --git a/activerecord/lib/active_record/associations/singular_association.rb b/activerecord/lib/active_record/associations/singular_association.rb index b9326b9683..c44242a0f0 100644 --- a/activerecord/lib/active_record/associations/singular_association.rb +++ b/activerecord/lib/active_record/associations/singular_association.rb @@ -39,7 +39,13 @@ module ActiveRecord end def get_records - return scope.limit(1).to_a if reflection.scope_chain.any?(&:any?) || scope.eager_loading? + if reflection.scope_chain.any?(&:any?) || + scope.eager_loading? || + klass.current_scope || + klass.default_scopes.any? + + return scope.limit(1).to_a + end conn = klass.connection sc = reflection.association_scope_cache(conn, owner) do diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb index 8cc1904575..88536eaac0 100644 --- a/activerecord/lib/active_record/attribute.rb +++ b/activerecord/lib/active_record/attribute.rb @@ -9,6 +9,10 @@ module ActiveRecord FromUser.new(name, value, type) end + def with_cast_value(name, value, type) + WithCastValue.new(name, value, type) + end + def null(name) Null.new(name) end @@ -58,6 +62,10 @@ module ActiveRecord self.class.from_database(name, value, type) end + def with_cast_value(value) + self.class.with_cast_value(name, value, type) + end + def type_cast(*) raise NotImplementedError end @@ -93,6 +101,16 @@ module ActiveRecord end end + class WithCastValue < Attribute # :nodoc: + def type_cast(value) + value + end + + def changed_in_place_from?(old_value) + false + end + end + class Null < Attribute # :nodoc: def initialize(name) super(name, nil, Type::Value.new) diff --git a/activerecord/lib/active_record/attribute_assignment.rb b/activerecord/lib/active_record/attribute_assignment.rb index 2887db3bf7..bf64830417 100644 --- a/activerecord/lib/active_record/attribute_assignment.rb +++ b/activerecord/lib/active_record/attribute_assignment.rb @@ -87,7 +87,7 @@ module ActiveRecord end end unless errors.empty? - error_descriptions = errors.map { |ex| ex.message }.join(",") + error_descriptions = errors.map(&:message).join(",") raise MultiparameterAssignmentErrors.new(errors), "#{errors.size} error(s) on assignment of multiparameter attributes [#{error_descriptions}]" end end diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 43a3993898..b7edac791e 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -1,4 +1,5 @@ require 'active_support/core_ext/enumerable' +require 'active_support/core_ext/string/filters' require 'mutex_m' require 'thread_safe' @@ -69,6 +70,8 @@ module ActiveRecord @generated_attribute_methods = GeneratedAttributeMethods.new { extend Mutex_m } @attribute_methods_generated = false include @generated_attribute_methods + + super end # Generates all the attribute related methods for columns in the database @@ -88,7 +91,7 @@ module ActiveRecord def undefine_attribute_methods # :nodoc: generated_attribute_methods.synchronize do - super if @attribute_methods_generated + super if defined?(@attribute_methods_generated) && @attribute_methods_generated @attribute_methods_generated = false end end @@ -109,7 +112,7 @@ module ActiveRecord # # => false def instance_method_already_implemented?(method_name) if dangerous_attribute_method?(method_name) - raise DangerousAttributeError, "#{method_name} is defined by Active Record" + raise DangerousAttributeError, "#{method_name} is defined by Active Record. Check to make sure that you don't have an attribute or method with the same name." end if superclass == Base @@ -147,7 +150,7 @@ module ActiveRecord BLACKLISTED_CLASS_METHODS.include?(method_name.to_s) || class_method_defined_within?(method_name, Base) end - def class_method_defined_within?(name, klass, superklass = klass.superclass) # :nodoc + def class_method_defined_within?(name, klass, superklass = klass.superclass) # :nodoc: if klass.respond_to?(name, true) if superklass.respond_to?(name, true) klass.method(name).owner != superklass.method(name).owner @@ -203,9 +206,11 @@ module ActiveRecord def column_for_attribute(name) column = columns_hash[name.to_s] if column.nil? - ActiveSupport::Deprecation.warn \ - "`column_for_attribute` will return a null object for non-existent columns " \ - "in Rails 5.0. Use `has_attribute?` if you need to check for an attribute's existence." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + `#column_for_attribute` will return a null object for non-existent + columns in Rails 5. Use `#has_attribute?` if you need to check for + an attribute's existence. + MSG end column end @@ -213,7 +218,7 @@ module ActiveRecord # A Person object with a name attribute can ask <tt>person.respond_to?(:name)</tt>, # <tt>person.respond_to?(:name=)</tt>, and <tt>person.respond_to?(:name?)</tt> - # which will all return +true+. It also define the attribute methods if they have + # which will all return +true+. It also defines the attribute methods if they have # not been generated. # # class Person < ActiveRecord::Base @@ -327,7 +332,7 @@ module ActiveRecord # task.attribute_present?(:title) # => true # task.attribute_present?(:is_done) # => true def attribute_present?(attribute) - value = read_attribute(attribute) + value = _read_attribute(attribute) !value.nil? && !(value.respond_to?(:empty?) && value.empty?) end @@ -428,7 +433,7 @@ module ActiveRecord end def typecasted_attribute_value(name) - read_attribute(name) + _read_attribute(name) end end end diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb index 2f02738f6d..d5702accaf 100644 --- a/activerecord/lib/active_record/attribute_methods/dirty.rb +++ b/activerecord/lib/active_record/attribute_methods/dirty.rb @@ -69,8 +69,17 @@ module ActiveRecord end end + def attribute_changed_in_place?(attr_name) + old_value = original_raw_attribute(attr_name) + @attributes[attr_name].changed_in_place_from?(old_value) + end + private + def changes_include?(attr_name) + super || attribute_changed_in_place?(attr_name) + end + def calculate_changes_from_defaults @changed_attributes = nil self.class.column_defaults.each do |attr, orig_value| @@ -110,7 +119,7 @@ module ActiveRecord if attribute_changed?(attr) changed_attributes[attr] else - clone_attribute_value(:read_attribute, attr) + clone_attribute_value(:_read_attribute, attr) end end @@ -141,15 +150,10 @@ module ActiveRecord def changed_in_place self.class.attribute_names.select do |attr_name| - changed_in_place?(attr_name) + attribute_changed_in_place?(attr_name) end end - def changed_in_place?(attr_name) - old_value = original_raw_attribute(attr_name) - @attributes[attr_name].changed_in_place_from?(old_value) - end - def original_raw_attribute(attr_name) original_raw_attributes.fetch(attr_name) do read_attribute_before_type_cast(attr_name) diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb index 9bd333bbac..c28374e4ab 100644 --- a/activerecord/lib/active_record/attribute_methods/primary_key.rb +++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb @@ -17,7 +17,7 @@ module ActiveRecord def id if pk = self.class.primary_key sync_with_transaction_state - read_attribute(pk) + _read_attribute(pk) end end @@ -120,6 +120,7 @@ module ActiveRecord def primary_key=(value) @primary_key = value && value.to_s @quoted_primary_key = nil + @attributes_builder = nil end end end diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index bf2a084a00..20f0936e52 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -27,7 +27,7 @@ module ActiveRecord <<-EOMETHOD def #{method_name} name = ::ActiveRecord::AttributeMethods::AttrNames::ATTR_#{const_name} - read_attribute(name) { |n| missing_attribute(n, caller) } + _read_attribute(name) { |n| missing_attribute(n, caller) } end EOMETHOD end @@ -64,7 +64,7 @@ module ActiveRecord generated_attribute_methods.module_eval <<-STR, __FILE__, __LINE__ + 1 def #{temp_method} name = ::ActiveRecord::AttributeMethods::AttrNames::ATTR_#{safe_name} - read_attribute(name) { |n| missing_attribute(n, caller) } + _read_attribute(name) { |n| missing_attribute(n, caller) } end STR @@ -76,19 +76,27 @@ module ActiveRecord end end + ID = 'id'.freeze + # Returns the value of the attribute identified by <tt>attr_name</tt> after # it has been typecast (for example, "2004-12-12" in a date column is cast # to a date object, like Date.new(2004, 12, 12)). def read_attribute(attr_name, &block) name = attr_name.to_s - name = self.class.primary_key if name == 'id' - @attributes.fetch_value(name, &block) + name = self.class.primary_key if name == ID + _read_attribute(name, &block) + end + + # This method exists to avoid the expensive primary_key check internally, without + # breaking compatibility with the read_attribute API + def _read_attribute(attr_name) # :nodoc: + @attributes.fetch_value(attr_name.to_s) { |n| yield n if block_given? } end private def attribute(attribute_name) - read_attribute(attribute_name) + _read_attribute(attribute_name) end end end diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb index 100d6d4229..e5ec5ddca5 100644 --- a/activerecord/lib/active_record/attribute_methods/serialization.rb +++ b/activerecord/lib/active_record/attribute_methods/serialization.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord module AttributeMethods module Serialization @@ -8,11 +10,8 @@ module ActiveRecord # object, and retrieved as the same object, then specify the name of that # attribute using this method and it will be handled automatically. The # serialization is done through YAML. If +class_name+ is specified, the - # serialized object must be of that class on retrieval or - # <tt>SerializationTypeMismatch</tt> will be raised. - # - # A notable side effect of serialized attributes is that the model will - # be updated on every save, even if it is not dirty. + # serialized object must be of that class on assignment and retrieval. + # Otherwise <tt>SerializationTypeMismatch</tt> will be raised. # # ==== Parameters # @@ -54,8 +53,10 @@ module ActiveRecord end def serialized_attributes - ActiveSupport::Deprecation.warn "`serialized_attributes` is deprecated " \ - "without replacement, and will be removed in Rails 5.0." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + `serialized_attributes` is deprecated without replacement, and will + be removed in Rails 5.0. + MSG @serialized_attributes ||= Hash[ columns.select { |t| t.cast_type.is_a?(Type::Serialized) }.map { |c| diff --git a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb index f439bd1ffe..777f7ab4d7 100644 --- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb +++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb @@ -1,7 +1,9 @@ module ActiveRecord module AttributeMethods module TimeZoneConversion - class TimeZoneConverter < SimpleDelegator # :nodoc: + class TimeZoneConverter < DelegateClass(Type::Value) # :nodoc: + include Type::Decorator + def type_cast_from_database(value) convert_time_to_time_zone(super) end @@ -10,7 +12,11 @@ module ActiveRecord if value.is_a?(Array) value.map { |v| type_cast_from_user(v) } elsif value.respond_to?(:in_time_zone) - value.in_time_zone + begin + value.in_time_zone || super + rescue ArgumentError + nil + end end end diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index b3c8209a74..16804f86bf 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -73,7 +73,7 @@ module ActiveRecord if should_type_cast @attributes.write_from_user(attr_name, value) else - @attributes.write_from_database(attr_name, value) + @attributes.write_cast_value(attr_name, value) end value diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb index 98ac63c7e1..66fcaf6945 100644 --- a/activerecord/lib/active_record/attribute_set.rb +++ b/activerecord/lib/active_record/attribute_set.rb @@ -2,8 +2,6 @@ require 'active_record/attribute_set/builder' module ActiveRecord class AttributeSet # :nodoc: - delegate :keys, to: :initialized_attributes - def initialize(attributes) @attributes = attributes end @@ -25,8 +23,12 @@ module ActiveRecord attributes.key?(name) && self[name].initialized? end - def fetch_value(name, &block) - self[name].value(&block) + def keys + attributes.initialized_keys + end + + def fetch_value(name) + self[name].value { |n| yield n if block_given? } end def write_from_database(name, value) @@ -37,13 +39,17 @@ module ActiveRecord attributes[name] = self[name].with_value_from_user(value) end + def write_cast_value(name, value) + attributes[name] = self[name].with_cast_value(value) + end + def freeze @attributes.freeze super end def initialize_dup(_) - @attributes = attributes.transform_values(&:dup) + @attributes = attributes.dup super end @@ -58,12 +64,6 @@ module ActiveRecord end end - def ensure_initialized(key) - unless self[key].initialized? - write_from_database(key, nil) - end - end - protected attr_reader :attributes diff --git a/activerecord/lib/active_record/attribute_set/builder.rb b/activerecord/lib/active_record/attribute_set/builder.rb index 1e146a07da..3a76f5262d 100644 --- a/activerecord/lib/active_record/attribute_set/builder.rb +++ b/activerecord/lib/active_record/attribute_set/builder.rb @@ -1,32 +1,86 @@ module ActiveRecord class AttributeSet # :nodoc: class Builder # :nodoc: - attr_reader :types + attr_reader :types, :always_initialized - def initialize(types) + def initialize(types, always_initialized = nil) @types = types + @always_initialized = always_initialized end def build_from_database(values = {}, additional_types = {}) - attributes = build_attributes_from_values(values, additional_types) - add_uninitialized_attributes(attributes) + if always_initialized && !values.key?(always_initialized) + values[always_initialized] = nil + end + + attributes = LazyAttributeHash.new(types, values, additional_types) AttributeSet.new(attributes) end + end + end - private + class LazyAttributeHash # :nodoc: + delegate :select, :transform_values, to: :materialize - def build_attributes_from_values(values, additional_types) - values.each_with_object({}) do |(name, value), hash| - type = additional_types.fetch(name, types[name]) - hash[name] = Attribute.from_database(name, value, type) - end + def initialize(types, values, additional_types) + @types = types + @values = values + @additional_types = additional_types + @materialized = false + @delegate_hash = {} + end + + def key?(key) + delegate_hash.key?(key) || values.key?(key) || types.key?(key) + end + + def [](key) + delegate_hash[key] || assign_default_value(key) + end + + def []=(key, value) + if frozen? + raise RuntimeError, "Can't modify frozen hash" end + delegate_hash[key] = value + end + + def initialized_keys + delegate_hash.keys | values.keys + end + + def initialize_dup(_) + @delegate_hash = delegate_hash.transform_values(&:dup) + super + end + + protected + + attr_reader :types, :values, :additional_types, :delegate_hash + + private + + def assign_default_value(name) + type = additional_types.fetch(name, types[name]) + value_present = true + value = values.fetch(name) { value_present = false } + + if value_present + delegate_hash[name] = Attribute.from_database(name, value, type) + elsif types.key?(name) + delegate_hash[name] = Attribute.uninitialized(name, type) + end + end - def add_uninitialized_attributes(attributes) - types.except(*attributes.keys).each do |name, type| - attributes[name] = Attribute.uninitialized(name, type) + def materialize + unless @materialized + values.each_key { |key| self[key] } + types.each_key { |key| self[key] } + unless frozen? + @materialized = true end end + delegate_hash end end end diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb index 890a1314d9..aafb990bc1 100644 --- a/activerecord/lib/active_record/attributes.rb +++ b/activerecord/lib/active_record/attributes.rb @@ -6,7 +6,9 @@ module ActiveRecord included do class_attribute :user_provided_columns, instance_accessor: false # :internal: + class_attribute :user_provided_defaults, instance_accessor: false # :internal: self.user_provided_columns = {} + self.user_provided_defaults = {} end module ClassMethods # :nodoc: @@ -51,9 +53,9 @@ module ActiveRecord # store_listing.price_in_cents # => 10 # # Users may also define their own custom types, as long as they respond to the methods - # defined on the value type. The `type_cast` method on your type object will be called + # defined on the value type. The +type_cast+ method on your type object will be called # with values both from the database, and from your controllers. See - # `ActiveRecord::Attributes::Type::Value` for the expected API. It is recommended that your + # +ActiveRecord::Attributes::Type::Value+ for the expected API. It is recommended that your # type objects inherit from an existing type, or the base value type. # # class MoneyType < ActiveRecord::Type::Integer @@ -77,7 +79,11 @@ module ActiveRecord name = name.to_s clear_caches_calculated_from_columns # Assign a new hash to ensure that subclasses do not share a hash - self.user_provided_columns = user_provided_columns.merge(name => connection.new_column(name, options[:default], cast_type)) + self.user_provided_columns = user_provided_columns.merge(name => cast_type) + + if options.key?(:default) + self.user_provided_defaults = user_provided_defaults.merge(name => options[:default]) + end end # Returns an array of column objects for the table associated with this class. @@ -99,16 +105,24 @@ module ActiveRecord def add_user_provided_columns(schema_columns) existing_columns = schema_columns.map do |column| - user_provided_columns[column.name] || column + new_type = user_provided_columns[column.name] + if new_type + column.with_type(new_type) + else + column + end end existing_column_names = existing_columns.map(&:name) - new_columns = user_provided_columns.except(*existing_column_names).values + new_columns = user_provided_columns.except(*existing_column_names).map do |(name, type)| + connection.new_column(name, nil, type) + end existing_columns + new_columns end def clear_caches_calculated_from_columns + @arel_table = nil @attributes_builder = nil @column_names = nil @column_types = nil @@ -117,6 +131,10 @@ module ActiveRecord @content_columns = nil @default_attributes = nil end + + def raw_default_values + super.merge(user_provided_defaults) + end end end end diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb index a8e4d25df2..c39b045a5e 100644 --- a/activerecord/lib/active_record/autosave_association.rb +++ b/activerecord/lib/active_record/autosave_association.rb @@ -184,7 +184,9 @@ module ActiveRecord before_save :before_save_collection_association define_non_cyclic_method(save_method) { save_collection_association(reflection) } - after_save save_method + # Doesn't use after_save as that would save associations added in after_create/after_update twice + after_create save_method + after_update save_method elsif reflection.has_one? define_method(save_method) { save_has_one_association(reflection) } unless method_defined?(save_method) # Configures two callbacks instead of a single after_save so that @@ -261,9 +263,9 @@ module ActiveRecord if new_record association && association.target elsif autosave - association.target.find_all { |record| record.changed_for_autosave? } + association.target.find_all(&:changed_for_autosave?) else - association.target.find_all { |record| record.new_record? } + association.target.find_all(&:new_record?) end end @@ -273,7 +275,7 @@ module ActiveRecord self.class._reflections.values.any? do |reflection| if reflection.options[:autosave] association = association_instance_get(reflection.name) - association && Array.wrap(association.target).any? { |a| a.changed_for_autosave? } + association && Array.wrap(association.target).any?(&:changed_for_autosave?) end end end @@ -403,7 +405,9 @@ module ActiveRecord # If the record is new or it has changed, returns true. def record_changed?(reflection, record, key) - record.new_record? || record[reflection.foreign_key] != key || record.attribute_changed?(reflection.foreign_key) + record.new_record? || + (record.has_attribute?(reflection.foreign_key) && record[reflection.foreign_key] != key) || + record.attribute_changed?(reflection.foreign_key) end # Saves the associated record if it's new or <tt>:autosave</tt> is enabled. diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index f978fbd0a4..bb01231bca 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -22,6 +22,7 @@ require 'active_record/log_subscriber' require 'active_record/explain_subscriber' require 'active_record/relation/delegation' require 'active_record/attributes' +require 'active_record/type_caster' module ActiveRecord #:nodoc: # = Active Record @@ -141,7 +142,7 @@ module ActiveRecord #:nodoc: # # In addition to the basic accessors, query methods are also automatically available on the Active Record object. # Query methods allow you to test whether an attribute value is present. - # For numeric values, present is defined as non-zero. + # Additionally, when dealing with numeric values, a query method will return false if the value is zero. # # For example, an Active Record User with the <tt>name</tt> attribute has a <tt>name?</tt> method that you can call # to determine whether the user has a name: diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index 5955673b42..497ce8c15c 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -289,25 +289,25 @@ module ActiveRecord end def destroy #:nodoc: - run_callbacks(:destroy) { super } + _run_destroy_callbacks { super } end def touch(*) #:nodoc: - run_callbacks(:touch) { super } + _run_touch_callbacks { super } end private - def create_or_update #:nodoc: - run_callbacks(:save) { super } + def create_or_update(*) #:nodoc: + _run_save_callbacks { super } end def _create_record #:nodoc: - run_callbacks(:create) { super } + _run_create_callbacks { super } end def _update_record(*) #:nodoc: - run_callbacks(:update) { super } + _run_update_callbacks { super } end end end diff --git a/activerecord/lib/active_record/coders/yaml_column.rb b/activerecord/lib/active_record/coders/yaml_column.rb index d3d7396c91..9ea22ed798 100644 --- a/activerecord/lib/active_record/coders/yaml_column.rb +++ b/activerecord/lib/active_record/coders/yaml_column.rb @@ -8,6 +8,7 @@ module ActiveRecord def initialize(object_class = Object) @object_class = object_class + check_arity_of_constructor end def dump(obj) @@ -33,6 +34,16 @@ module ActiveRecord obj end + + private + + def check_arity_of_constructor + begin + load(nil) + rescue ArgumentError + raise ArgumentError, "Cannot serialize #{object_class}. Classes passed to `serialize` must have a 0 argument constructor." + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index bc1a670b42..3968b90341 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -2,6 +2,7 @@ require 'thread' require 'thread_safe' require 'monitor' require 'set' +require 'active_support/core_ext/string/filters' module ActiveRecord # Raised when a connection could not be obtained within the connection @@ -121,13 +122,13 @@ module ActiveRecord # greater than the number of threads currently waiting (that # is, don't jump ahead in line). Otherwise, return nil. # - # If +timeout+ is given, block if it there is no element + # If +timeout+ is given, block if there is no element # available, waiting up to +timeout+ seconds for an element to # become available. # # Raises: # - ConnectionTimeoutError if +timeout+ is given and no element - # becomes available after +timeout+ seconds, + # becomes available within +timeout+ seconds, def poll(timeout = nil) synchronize do if timeout @@ -150,7 +151,7 @@ module ActiveRecord end # A thread can remove an element from the queue without - # waiting if an only if the number of currently available + # waiting if and only if the number of currently available # connections is strictly greater than the number of waiting # threads. def can_remove_no_wait? @@ -319,9 +320,7 @@ module ActiveRecord checkin conn conn.disconnect! if conn.requires_reloading? end - @connections.delete_if do |conn| - conn.requires_reloading? - end + @connections.delete_if(&:requires_reloading?) @available.clear @connections.each do |conn| @available.add conn @@ -360,11 +359,11 @@ module ActiveRecord synchronize do owner = conn.owner - conn.run_callbacks :checkin do + conn._run_checkin_callbacks do conn.expire end - release owner + release conn, owner @available.add conn end @@ -377,7 +376,7 @@ module ActiveRecord @connections.delete conn @available.delete conn - release conn.owner + release conn, conn.owner @available.add checkout_new_connection if @available.any_waiting? end @@ -425,10 +424,12 @@ module ActiveRecord end end - def release(owner) + def release(conn, owner) thread_id = owner.object_id - @reserved_connections.delete thread_id + if @reserved_connections[thread_id] == conn + @reserved_connections.delete thread_id + end end def new_connection @@ -449,7 +450,7 @@ module ActiveRecord end def checkout_and_verify(c) - c.run_callbacks :checkout do + c._run_checkout_callbacks do c.verify! end c @@ -518,10 +519,11 @@ module ActiveRecord end def connection_pools - ActiveSupport::Deprecation.warn( - "In the next release, this will return the same as #connection_pool_list. " \ - "(An array of pools, rather than a hash mapping specs to pools.)" - ) + ActiveSupport::Deprecation.warn(<<-MSG.squish) + In the next release, this will return the same as `#connection_pool_list`. + (An array of pools, rather than a hash mapping specs to pools.) + MSG + Hash[connection_pool_list.map { |pool| [pool.spec, pool] }] end @@ -640,7 +642,7 @@ module ActiveRecord end def call(env) - testing = env.key?('rack.test') + testing = env['rack.test'] response = @app.call(env) response[2] = ::Rack::BodyProxy.new(response[2]) do diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 98e96099cb..12b16b2473 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -83,6 +83,11 @@ module ActiveRecord exec_query(sql, name, binds) end + # Executes the truncate statement. + def truncate(table_name, name = nil) + raise NotImplementedError + end + # Executes update +sql+ statement in the context of this connection using # +binds+ as the bind substitutes. +name+ is logged along with # the executed +sql+ statement. @@ -282,10 +287,6 @@ module ActiveRecord "DEFAULT VALUES" end - def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key) - "WHERE #{quoted_primary_key} IN (SELECT #{quoted_primary_key} FROM #{quoted_table_name} #{where_sql})" - end - # Sanitizes the given LIMIT parameter in order to prevent SQL injection. # # The +limit+ may be anything that can evaluate to a string via #to_s. It @@ -332,8 +333,9 @@ module ActiveRecord # Returns an ActiveRecord::Result instance. def select(sql, name = nil, binds = []) + exec_query(sql, name, binds) end - undef_method :select + # Returns the last auto-generated ID from the affected table. def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index eb88845913..679878d860 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -108,7 +108,7 @@ module ActiveRecord when Numeric, ActiveSupport::Duration then value.to_s when Date, Time then "'#{quoted_date(value)}'" when Symbol then "'#{quote_string(value.to_s)}'" - when Class then "'#{value.to_s}'" + when Class then "'#{value}'" else "'#{quote_string(YAML.dump(value))}'" end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index 6bab260f5a..896691d249 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -15,9 +15,7 @@ module ActiveRecord end def visit_AddColumn(o) - sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale) - sql = "ADD #{quote_column_name(o.name)} #{sql_type}" - add_column_options!(sql, column_options(o)) + "ADD #{accept(o)}" end private @@ -32,7 +30,7 @@ module ActiveRecord def visit_ColumnDefinition(o) sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale) column_sql = "#{quote_column_name(o.name)} #{sql_type}" - add_column_options!(column_sql, column_options(o)) unless o.primary_key? + add_column_options!(column_sql, column_options(o)) unless o.type == :primary_key column_sql end @@ -67,6 +65,8 @@ module ActiveRecord column_options[:column] = o column_options[:first] = o.first column_options[:after] = o.after + column_options[:auto_increment] = o.auto_increment + column_options[:primary_key] = o.primary_key column_options end @@ -83,7 +83,7 @@ module ActiveRecord end def add_column_options!(sql, options) - sql << " DEFAULT #{quote_value(options[:default], options[:column])}" if options_include_default?(options) + sql << " DEFAULT #{quote_default_expression(options[:default], options[:column])}" if options_include_default?(options) # must explicitly check for :null to allow change_column to work on migrations if options[:null] == false sql << " NOT NULL" @@ -91,10 +91,13 @@ module ActiveRecord if options[:auto_increment] == true sql << " AUTO_INCREMENT" end + if options[:primary_key] == true + sql << " PRIMARY KEY" + end sql end - def quote_value(value, column) + def quote_default_expression(value, column) column.sql_type ||= type_to_sql(column.type, column.limit, column.precision, column.scale) column.cast_type ||= type_for_column(column) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb index fe00f9d750..1cf1600d81 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -15,7 +15,7 @@ module ActiveRecord # are typically created by methods in TableDefinition, and added to the # +columns+ attribute of said TableDefinition object, in order to be used # for generating a number of table creation or table changing SQL statements. - class ColumnDefinition < Struct.new(:name, :type, :limit, :precision, :scale, :default, :null, :first, :after, :primary_key, :sql_type, :cast_type) #:nodoc: + class ColumnDefinition < Struct.new(:name, :type, :limit, :precision, :scale, :default, :null, :first, :after, :auto_increment, :primary_key, :sql_type, :cast_type) #:nodoc: def primary_key? primary_key || type.to_sym == :primary_key @@ -60,11 +60,89 @@ module ActiveRecord def emit_warning_if_null_unspecified(options) return if options.key?(:null) - ActiveSupport::Deprecation.warn \ - "`timestamp` was called without specifying an option for `null`. In Rails " \ - "5.0, this behavior will change to `null: false`. You should manually " \ - "specify `null: true` to prevent the behavior of your existing migrations " \ - "from changing." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + `#timestamp` was called without specifying an option for `null`. In Rails 5, + this behavior will change to `null: false`. You should manually specify + `null: true` to prevent the behavior of your existing migrations from changing. + MSG + end + end + + class ReferenceDefinition # :nodoc: + def initialize( + name, + polymorphic: false, + index: false, + foreign_key: false, + type: :integer, + **options + ) + @name = name + @polymorphic = polymorphic + @index = index + @foreign_key = foreign_key + @type = type + @options = options + + if polymorphic && foreign_key + raise ArgumentError, "Cannot add a foreign key to a polymorphic relation" + end + end + + def add_to(table) + columns.each do |column_options| + table.column(*column_options) + end + + if index + table.index(column_names, index_options) + end + + if foreign_key + table.foreign_key(foreign_table_name, foreign_key_options) + end + end + + protected + + attr_reader :name, :polymorphic, :index, :foreign_key, :type, :options + + private + + def as_options(value, default = {}) + if value.is_a?(Hash) + value + else + default + end + end + + def polymorphic_options + as_options(polymorphic, options) + end + + def index_options + as_options(index) + end + + def foreign_key_options + as_options(foreign_key) + end + + def columns + result = [["#{name}_id", type, options]] + if polymorphic + result.unshift(["#{name}_type", :string, polymorphic_options]) + end + result + end + + def column_names + columns.map(&:first) + end + + def foreign_table_name + name.to_s.pluralize end end @@ -94,11 +172,12 @@ module ActiveRecord # An array of ColumnDefinition objects, representing the column changes # that have been defined. attr_accessor :indexes - attr_reader :name, :temporary, :options, :as + attr_reader :name, :temporary, :options, :as, :foreign_keys def initialize(types, name, temporary, options, as = nil) @columns_hash = {} @indexes = {} + @foreign_keys = {} @native = types @temporary = temporary @options = options @@ -124,8 +203,8 @@ module ActiveRecord # which is one of the following: # <tt>:primary_key</tt>, <tt>:string</tt>, <tt>:text</tt>, # <tt>:integer</tt>, <tt>:float</tt>, <tt>:decimal</tt>, - # <tt>:datetime</tt>, <tt>:timestamp</tt>, <tt>:time</tt>, - # <tt>:date</tt>, <tt>:binary</tt>, <tt>:boolean</tt>. + # <tt>:datetime</tt>, <tt>:time</tt>, <tt>:date</tt>, + # <tt>:binary</tt>, <tt>:boolean</tt>. # # You may use a type not in this list as long as it is supported by your # database (for example, "polygon" in MySQL), but this will not be database @@ -226,7 +305,7 @@ module ActiveRecord # t.integer :shop_id, :creator_id # t.string :item_number, index: true # t.string :name, :value, default: "Untitled" - # t.timestamps + # t.timestamps null: false # end # # There's a short-hand method for each of the type values declared at the top. And then there's @@ -256,7 +335,7 @@ module ActiveRecord name = name.to_s type = type.to_sym - if primary_key_column_name == name + if @columns_hash[name] && @columns_hash[name].primary_key? raise ArgumentError, "you can't redefine the primary key column '#{name}'. To define a custom primary key, pass { id: false } to create_table." end @@ -270,7 +349,7 @@ module ActiveRecord @columns_hash.delete name.to_s end - [:string, :text, :integer, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean].each do |column_type| + [:string, :text, :integer, :bigint, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean].each do |column_type| define_method column_type do |*args| options = args.extract_options! column_names = args @@ -286,8 +365,14 @@ module ActiveRecord indexes[column_name] = options end + def foreign_key(table_name, options = {}) # :nodoc: + foreign_keys[table_name] = options + end + # Appends <tt>:datetime</tt> columns <tt>:created_at</tt> and - # <tt>:updated_at</tt> to the table. + # <tt>:updated_at</tt> to the table. See SchemaStatements#add_timestamps + # + # t.timestamps null: false def timestamps(*args) options = args.extract_options! emit_warning_if_null_unspecified(options) @@ -295,30 +380,26 @@ module ActiveRecord column(:updated_at, :datetime, options) end - # Adds a reference. Optionally adds a +type+ column, if <tt>:polymorphic</tt> option is provided. - # <tt>references</tt> and <tt>belongs_to</tt> are acceptable. The reference column will be an +integer+ - # by default, the <tt>:type</tt> option can be used to specify a different type. + # Adds a reference. Optionally adds a +type+ column, if the + # +:polymorphic+ option is provided. +references+ and +belongs_to+ + # are acceptable. The reference column will be an +integer+ by default, + # the +:type+ option can be used to specify a different type. A foreign + # key will be created if the +:foreign_key+ option is passed. # # t.references(:user) # t.references(:user, type: "string") # t.belongs_to(:supplier, polymorphic: true) # # See SchemaStatements#add_reference - def references(*args) - options = args.extract_options! - polymorphic = options.delete(:polymorphic) - index_options = options.delete(:index) - type = options.delete(:type) || :integer + def references(*args, **options) args.each do |col| - column("#{col}_id", type, options) - column("#{col}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) if polymorphic - index(polymorphic ? %w(id type).map { |t| "#{col}_#{t}" } : "#{col}_id", index_options.is_a?(Hash) ? index_options : {}) if index_options + ReferenceDefinition.new(col, **options).add_to(self) end end alias :belongs_to :references def new_column_definition(name, type, options) # :nodoc: - type = aliased_types[type] || type + type = aliased_types(type.to_s, type) column = create_column_definition name, type limit = options.fetch(:limit) do native[type][:limit] if native[type].is_a?(Hash) @@ -331,6 +412,7 @@ module ActiveRecord column.null = options[:null] column.first = options[:first] column.after = options[:after] + column.auto_increment = options[:auto_increment] column.primary_key = type == :primary_key || options[:primary_key] column end @@ -340,19 +422,12 @@ module ActiveRecord ColumnDefinition.new name, type end - def primary_key_column_name - primary_key_column = columns.detect { |c| c.primary_key? } - primary_key_column && primary_key_column.name - end - def native @native end - def aliased_types - HashWithIndifferentAccess.new( - timestamp: :datetime, - ) + def aliased_types(name, fallback) + 'timestamp' == name ? :datetime : fallback end end @@ -419,132 +494,143 @@ module ActiveRecord # end # class Table - include TimestampDefaultDeprecation + attr_reader :name def initialize(table_name, base) - @table_name = table_name + @name = table_name @base = base end # Adds a new column to the named table. - # See TableDefinition#column for details of the options you can use. # - # ====== Creating a simple column # t.column(:name, :string) + # + # See TableDefinition#column for details of the options you can use. def column(column_name, type, options = {}) - @base.add_column(@table_name, column_name, type, options) + @base.add_column(name, column_name, type, options) end - # Checks to see if a column exists. See SchemaStatements#column_exists? + # Checks to see if a column exists. + # + # See SchemaStatements#column_exists? def column_exists?(column_name, type = nil, options = {}) - @base.column_exists?(@table_name, column_name, type, options) + @base.column_exists?(name, column_name, type, options) end # Adds a new index to the table. +column_name+ can be a single Symbol, or - # an Array of Symbols. See SchemaStatements#add_index + # an Array of Symbols. # - # ====== Creating a simple index # t.index(:name) - # ====== Creating a unique index # t.index([:branch_id, :party_id], unique: true) - # ====== Creating a named index # t.index([:branch_id, :party_id], unique: true, name: 'by_branch_party') + # + # See SchemaStatements#add_index for details of the options you can use. def index(column_name, options = {}) - @base.add_index(@table_name, column_name, options) + @base.add_index(name, column_name, options) end - # Checks to see if an index exists. See SchemaStatements#index_exists? + # Checks to see if an index exists. + # + # See SchemaStatements#index_exists? def index_exists?(column_name, options = {}) - @base.index_exists?(@table_name, column_name, options) + @base.index_exists?(name, column_name, options) end # Renames the given index on the table. # # t.rename_index(:user_id, :account_id) + # + # See SchemaStatements#rename_index def rename_index(index_name, new_index_name) - @base.rename_index(@table_name, index_name, new_index_name) + @base.rename_index(name, index_name, new_index_name) end - # Adds timestamps (+created_at+ and +updated_at+) columns to the table. See SchemaStatements#add_timestamps + # Adds timestamps (+created_at+ and +updated_at+) columns to the table. + # + # t.timestamps(null: false) # - # t.timestamps + # See SchemaStatements#add_timestamps def timestamps(options = {}) - emit_warning_if_null_unspecified(options) - @base.add_timestamps(@table_name, options) + @base.add_timestamps(name, options) end # Changes the column's definition according to the new options. - # See TableDefinition#column for details of the options you can use. # # t.change(:name, :string, limit: 80) # t.change(:description, :text) + # + # See TableDefinition#column for details of the options you can use. def change(column_name, type, options = {}) - @base.change_column(@table_name, column_name, type, options) + @base.change_column(name, column_name, type, options) end - # Sets a new default value for a column. See SchemaStatements#change_column_default + # Sets a new default value for a column. # # t.change_default(:qualification, 'new') # t.change_default(:authorized, 1) + # + # See SchemaStatements#change_column_default def change_default(column_name, default) - @base.change_column_default(@table_name, column_name, default) + @base.change_column_default(name, column_name, default) end # Removes the column(s) from the table definition. # # t.remove(:qualification) # t.remove(:qualification, :experience) + # + # See SchemaStatements#remove_columns def remove(*column_names) - @base.remove_columns(@table_name, *column_names) + @base.remove_columns(name, *column_names) end # Removes the given index from the table. # - # ====== Remove the index_table_name_on_column in the table_name table - # t.remove_index :column - # ====== Remove the index named index_table_name_on_branch_id in the table_name table - # t.remove_index column: :branch_id - # ====== Remove the index named index_table_name_on_branch_id_and_party_id in the table_name table - # t.remove_index column: [:branch_id, :party_id] - # ====== Remove the index named by_branch_party in the table_name table - # t.remove_index name: :by_branch_party + # t.remove_index(:branch_id) + # t.remove_index(column: [:branch_id, :party_id]) + # t.remove_index(name: :by_branch_party) + # + # See SchemaStatements#remove_index def remove_index(options = {}) - @base.remove_index(@table_name, options) + @base.remove_index(name, options) end # Removes the timestamp columns (+created_at+ and +updated_at+) from the table. # # t.remove_timestamps - def remove_timestamps - @base.remove_timestamps(@table_name) + # + # See SchemaStatements#remove_timestamps + def remove_timestamps(options = {}) + @base.remove_timestamps(name, options) end # Renames a column. # # t.rename(:description, :name) + # + # See SchemaStatements#rename_column def rename(column_name, new_column_name) - @base.rename_column(@table_name, column_name, new_column_name) + @base.rename_column(name, column_name, new_column_name) end - # Adds a reference. Optionally adds a +type+ column, if <tt>:polymorphic</tt> option is provided. - # <tt>references</tt> and <tt>belongs_to</tt> are acceptable. The reference column will be an +integer+ - # by default, the <tt>:type</tt> option can be used to specify a different type. + # Adds a reference. Optionally adds a +type+ column, if + # <tt>:polymorphic</tt> option is provided. # # t.references(:user) # t.references(:user, type: "string") # t.belongs_to(:supplier, polymorphic: true) + # t.belongs_to(:supplier, foreign_key: true) # # See SchemaStatements#add_reference def references(*args) options = args.extract_options! args.each do |ref_name| - @base.add_reference(@table_name, ref_name, options) + @base.add_reference(name, ref_name, options) end end alias :belongs_to :references # Removes a reference. Optionally removes a +type+ column. - # <tt>remove_references</tt> and <tt>remove_belongs_to</tt> are acceptable. # # t.remove_references(:user) # t.remove_belongs_to(:supplier, polymorphic: true) @@ -553,24 +639,30 @@ module ActiveRecord def remove_references(*args) options = args.extract_options! args.each do |ref_name| - @base.remove_reference(@table_name, ref_name, options) + @base.remove_reference(name, ref_name, options) end end alias :remove_belongs_to :remove_references - # Adds a column or columns of a specified type + # Adds a column or columns of a specified type. # # t.string(:goat) # t.string(:goat, :sheep) + # + # See SchemaStatements#add_column [:string, :text, :integer, :float, :decimal, :datetime, :timestamp, :time, :date, :binary, :boolean].each do |column_type| define_method column_type do |*args| options = args.extract_options! - args.each do |name| - @base.add_column(@table_name, name, column_type, options) + args.each do |column_name| + @base.add_column(name, column_name, column_type, options) end end end + def foreign_key(*args) # :nodoc: + @base.add_foreign_key(name, *args) + end + private def native @base.native_database_types diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb index 9bd0401e40..0834105079 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_dumper.rb @@ -6,25 +6,29 @@ module ActiveRecord # We can then redefine how certain data types may be handled in the schema dumper on the # Adapter level by over-writing this code inside the database specific adapters module ColumnDumper - def column_spec(column, types) - spec = prepare_column_options(column, types) - (spec.keys - [:name, :type]).each{ |k| spec[k].insert(0, "#{k.to_s}: ")} + def column_spec(column) + spec = prepare_column_options(column) + (spec.keys - [:name, :type]).each{ |k| spec[k].insert(0, "#{k}: ")} spec end # This can be overridden on a Adapter level basis to support other # extended datatypes (Example: Adding an array option in the # PostgreSQLAdapter) - def prepare_column_options(column, types) + def prepare_column_options(column) spec = {} spec[:name] = column.name.inspect spec[:type] = column.type.to_s - spec[:limit] = column.limit.inspect if column.limit != types[column.type][:limit] + spec[:null] = 'false' unless column.null + + limit = column.limit || native_database_types[column.type][:limit] + spec[:limit] = limit.inspect if limit spec[:precision] = column.precision.inspect if column.precision spec[:scale] = column.scale.inspect if column.scale - spec[:null] = 'false' unless column.null - spec[:default] = schema_default(column) if column.has_default? - spec.delete(:default) if spec[:default].nil? + + default = schema_default(column) if column.has_default? + spec[:default] = default unless default.nil? + spec end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb index 7105df1ee4..24afd9c5da 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -132,6 +132,7 @@ module ActiveRecord # Make a temporary table. # [<tt>:force</tt>] # Set to true to drop the table before creating it. + # Set to +:cascade+ to drop dependent objects as well. # Defaults to false. # [<tt>:as</tt>] # SQL to use to generate the table. When this option is used, the block is @@ -203,7 +204,17 @@ module ActiveRecord end result = execute schema_creation.accept td - td.indexes.each_pair { |c, o| add_index(table_name, c, o) } unless supports_indexes_in_create? + + unless supports_indexes_in_create? + td.indexes.each_pair do |column_name, index_options| + add_index(table_name, column_name, index_options) + end + end + + td.foreign_keys.each_pair do |other_table_name, foreign_key_options| + add_foreign_key(table_name, other_table_name, foreign_key_options) + end + result end @@ -361,8 +372,12 @@ module ActiveRecord # Drops a table from the database. # - # Although this command ignores +options+ and the block if one is given, it can be helpful - # to provide these in a migration's +change+ method so it can be reverted. + # [<tt>:force</tt>] + # Set to +:cascade+ to drop dependent objects as well. + # Defaults to false. + # + # Although this command ignores most +options+ and the block if one is given, + # it can be helpful to provide these in a migration's +change+ method so it can be reverted. # In that case, +options+ and the block will be used by create_table. def drop_table(table_name, options = {}) execute "DROP TABLE #{quote_table_name(table_name)}" @@ -571,6 +586,8 @@ module ActiveRecord # rename_index :people, 'index_people_on_last_name', 'index_users_on_last_name' # def rename_index(table_name, old_name, new_name) + validate_index_length!(table_name, new_name) + # this is a naive implementation; some DBs may support this more efficiently (Postgres, for instance) old_index_def = indexes(table_name).detect { |i| i.name == old_name } return unless old_index_def @@ -619,17 +636,16 @@ module ActiveRecord # # add_belongs_to(:products, :supplier, polymorphic: true) # - # ====== Create a supplier_id, supplier_type columns and appropriate index + # ====== Create supplier_id, supplier_type columns and appropriate index # # add_reference(:products, :supplier, polymorphic: true, index: true) # - def add_reference(table_name, ref_name, options = {}) - polymorphic = options.delete(:polymorphic) - index_options = options.delete(:index) - type = options.delete(:type) || :integer - add_column(table_name, "#{ref_name}_id", type, options) - add_column(table_name, "#{ref_name}_type", :string, polymorphic.is_a?(Hash) ? polymorphic : options) if polymorphic - add_index(table_name, polymorphic ? %w[id type].map{ |t| "#{ref_name}_#{t}" } : "#{ref_name}_id", index_options.is_a?(Hash) ? index_options : {}) if index_options + # ====== Create a supplier_id column and appropriate foreign key + # + # add_reference(:products, :supplier, foreign_key: true) + # + def add_reference(table_name, *args) + ReferenceDefinition.new(*args).add_to(update_table_definition(table_name, self)) end alias :add_belongs_to :add_reference @@ -740,7 +756,7 @@ module ActiveRecord end fk_name_to_delete = options.fetch(:name) do - fk_to_delete = foreign_keys(from_table).detect {|fk| fk.column == options[:column] } + fk_to_delete = foreign_keys(from_table).detect {|fk| fk.column == options[:column].to_s } if fk_to_delete fk_to_delete.name @@ -778,7 +794,7 @@ module ActiveRecord version = version.to_i sm_table = quote_table_name(ActiveRecord::Migrator.schema_migrations_table_name) - migrated = select_values("SELECT version FROM #{sm_table}").map { |v| v.to_i } + migrated = select_values("SELECT version FROM #{sm_table}").map(&:to_i) paths = migrations_paths.map {|p| "#{p}/[0-9]*_*.rb" } versions = Dir[*paths].map do |filename| filename.split('/').last.split('_').first.to_i @@ -835,11 +851,14 @@ module ActiveRecord columns end - # Adds timestamps (+created_at+ and +updated_at+) columns to the named table. + include TimestampDefaultDeprecation + # Adds timestamps (+created_at+ and +updated_at+) columns to +table_name+. + # Additional options (like <tt>null: false</tt>) are forwarded to #add_column. # - # add_timestamps(:suppliers) + # add_timestamps(:suppliers, null: false) # def add_timestamps(table_name, options = {}) + emit_warning_if_null_unspecified(options) add_column table_name, :created_at, :datetime, options add_column table_name, :updated_at, :datetime, options end @@ -848,7 +867,7 @@ module ActiveRecord # # remove_timestamps(:suppliers) # - def remove_timestamps(table_name) + def remove_timestamps(table_name, options = {}) remove_column table_name, :updated_at remove_column table_name, :created_at end @@ -975,6 +994,12 @@ module ActiveRecord "fk_rails_#{SecureRandom.hex(5)}" end end + + def validate_index_length!(table_name, new_name) + if new_name.length > allowed_index_name_length + raise ArgumentError, "Index name '#{new_name}' on table '#{table_name}' is too long; the limit is #{allowed_index_name_length} characters" + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 90be835d8a..fd666c8c39 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -190,11 +190,17 @@ module ActiveRecord rollback_transaction if transaction raise ensure - begin - commit_transaction unless error - rescue Exception - transaction.rollback unless transaction.state.completed? - raise + unless error + if Thread.current.status == 'aborting' + rollback_transaction + else + begin + commit_transaction + rescue Exception + transaction.rollback unless transaction.state.completed? + raise + end + end end end diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 2ee5a88f2a..308e4c77bd 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -14,19 +14,18 @@ module ActiveRecord module ConnectionAdapters # :nodoc: extend ActiveSupport::Autoload - autoload_at 'active_record/connection_adapters/column' do - autoload :Column - autoload :NullColumn - end + autoload :Column autoload :ConnectionSpecification autoload_at 'active_record/connection_adapters/abstract/schema_definitions' do autoload :IndexDefinition autoload :ColumnDefinition autoload :ChangeColumnDefinition + autoload :ForeignKeyDefinition autoload :TableDefinition autoload :Table autoload :AlterTable + autoload :TimestampDefaultDeprecation end autoload_at 'active_record/connection_adapters/abstract/connection_pool' do @@ -240,6 +239,11 @@ module ActiveRecord false end + # Does this adapter support views? + def supports_views? + false + end + # This is meant to be implemented by the adapters that support extensions def disable_extension(name) end @@ -260,10 +264,20 @@ module ActiveRecord # QUOTING ================================================== - # Returns a bind substitution value given a bind +index+ and +column+ + # Quote date/time values for use in SQL input. Includes microseconds + # if the value is a Time responding to usec. + def quoted_date(value) #:nodoc: + if value.acts_like?(:time) && value.respond_to?(:usec) + "#{super}.#{sprintf("%06d", value.usec)}" + else + super + end + end + + # Returns a bind substitution value given a bind +column+ # NOTE: The column param is currently being used by the sqlserver-adapter - def substitute_at(column, index) - Arel::Nodes::BindParam.new '?' + def substitute_at(column, _unused = 0) + Arel::Nodes::BindParam.new end # REFERENTIAL INTEGRITY ==================================== @@ -381,6 +395,10 @@ module ActiveRecord type_map.lookup(sql_type) end + def column_name_for_operation(operation, node) # :nodoc: + node.to_sql + end + protected def initialize_type_map(m) # :nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb index 3a24ecac77..d083e413a5 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -6,6 +6,13 @@ module ActiveRecord class AbstractMysqlAdapter < AbstractAdapter include Savepoints + class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition + def primary_key(name, type = :primary_key, options = {}) + options[:auto_increment] ||= type == :bigint + super + end + end + class SchemaCreation < AbstractAdapter::SchemaCreation def visit_AddColumn(o) add_column_position!(super, column_options(o)) @@ -91,6 +98,13 @@ module ActiveRecord collation && !collation.match(/_ci$/) end + def ==(other) + super && + collation == other.collation && + strict == other.strict && + extra == other.extra + end + private # MySQL misreports NOT NULL column default when none is given. @@ -109,6 +123,10 @@ module ActiveRecord raise ArgumentError, "#{type} columns cannot have a default value: #{default.inspect}" end end + + def attributes_for_hash + super + [collation, strict, extra] + end end ## @@ -197,6 +215,10 @@ module ActiveRecord true end + def supports_views? + version[0] >= 5 + end + def native_database_types NATIVE_DATABASE_TYPES end @@ -270,7 +292,9 @@ module ActiveRecord end end + #-- # DATABASE STATEMENTS ====================================== + #++ def clear_cache! super @@ -381,10 +405,14 @@ module ActiveRecord sql << "LIKE #{quote(like)}" if like execute_and_free(sql, 'SCHEMA') do |result| - result.collect { |field| field.first } + result.collect(&:first) end end + def truncate(table_name, name = nil) + execute "TRUNCATE TABLE #{quote_table_name(table_name)}", name + end + def table_exists?(name) return false unless name.present? return true if tables(nil, nil, name).any? @@ -466,18 +494,20 @@ module ActiveRecord end def drop_table(table_name, options = {}) - execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE #{quote_table_name(table_name)}" + execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" end def rename_index(table_name, old_name, new_name) if supports_rename_index? + validate_index_length!(table_name, new_name) + execute "ALTER TABLE #{quote_table_name(table_name)} RENAME INDEX #{quote_table_name(old_name)} TO #{quote_table_name(new_name)}" else super end end - def change_column_default(table_name, column_name, default) + def change_column_default(table_name, column_name, default) #:nodoc: column = column_for(table_name, column_name) change_column table_name, column_name, column.sql_type, :default => default end @@ -566,14 +596,6 @@ module ActiveRecord end end - def add_column_position!(sql, options) - if options[:first] - sql << " FIRST" - elsif options[:after] - sql << " AFTER #{quote_column_name(options[:after])}" - end - end - # SHOW VARIABLES LIKE 'name' def show_variable(name) variables = select_all("SHOW VARIABLES LIKE '#{name}'", 'SCHEMA') @@ -620,10 +642,6 @@ module ActiveRecord end end - def limited_update_conditions(where_sql, quoted_table_name, quoted_primary_key) - where_sql - end - def strict_mode? self.class.type_cast_config_to_boolean(@config.fetch(:strict, true)) end @@ -636,30 +654,46 @@ module ActiveRecord def initialize_type_map(m) # :nodoc: super - m.register_type(%r(enum)i) do |sql_type| - limit = sql_type[/^enum\((.+)\)/i, 1] - .split(',').map{|enum| enum.strip.length - 2}.max - Type::String.new(limit: limit) - end - - m.register_type %r(tinytext)i, Type::Text.new(limit: 255) - m.register_type %r(tinyblob)i, Type::Binary.new(limit: 255) - m.register_type %r(mediumtext)i, Type::Text.new(limit: 16777215) - m.register_type %r(mediumblob)i, Type::Binary.new(limit: 16777215) - m.register_type %r(longtext)i, Type::Text.new(limit: 2147483647) - m.register_type %r(longblob)i, Type::Binary.new(limit: 2147483647) - m.register_type %r(^bigint)i, Type::Integer.new(limit: 8) - m.register_type %r(^int)i, Type::Integer.new(limit: 4) - m.register_type %r(^mediumint)i, Type::Integer.new(limit: 3) - m.register_type %r(^smallint)i, Type::Integer.new(limit: 2) - m.register_type %r(^tinyint)i, Type::Integer.new(limit: 1) + + register_class_with_limit m, %r(char)i, MysqlString + + m.register_type %r(tinytext)i, Type::Text.new(limit: 2**8 - 1) + m.register_type %r(tinyblob)i, Type::Binary.new(limit: 2**8 - 1) + m.register_type %r(text)i, Type::Text.new(limit: 2**16 - 1) + m.register_type %r(blob)i, Type::Binary.new(limit: 2**16 - 1) + m.register_type %r(mediumtext)i, Type::Text.new(limit: 2**24 - 1) + m.register_type %r(mediumblob)i, Type::Binary.new(limit: 2**24 - 1) + m.register_type %r(longtext)i, Type::Text.new(limit: 2**32 - 1) + m.register_type %r(longblob)i, Type::Binary.new(limit: 2**32 - 1) m.register_type %r(^float)i, Type::Float.new(limit: 24) m.register_type %r(^double)i, Type::Float.new(limit: 53) + register_integer_type m, %r(^bigint)i, limit: 8 + register_integer_type m, %r(^int)i, limit: 4 + register_integer_type m, %r(^mediumint)i, limit: 3 + register_integer_type m, %r(^smallint)i, limit: 2 + register_integer_type m, %r(^tinyint)i, limit: 1 + m.alias_type %r(tinyint\(1\))i, 'boolean' if emulate_booleans m.alias_type %r(set)i, 'varchar' m.alias_type %r(year)i, 'integer' m.alias_type %r(bit)i, 'binary' + + m.register_type(%r(enum)i) do |sql_type| + limit = sql_type[/^enum\((.+)\)/i, 1] + .split(',').map{|enum| enum.strip.length - 2}.max + MysqlString.new(limit: limit) + end + end + + def register_integer_type(mapping, key, options) # :nodoc: + mapping.register_type(key) do |sql_type| + if /unsigned/i =~ sql_type + Type::UnsignedInteger.new(options) + else + Type::Integer.new(options) + end + end end # MySQL is too stupid to create a temporary table for use subquery, so we have @@ -765,24 +799,20 @@ module ActiveRecord [add_column_sql(table_name, :created_at, :datetime, options), add_column_sql(table_name, :updated_at, :datetime, options)] end - def remove_timestamps_sql(table_name) + def remove_timestamps_sql(table_name, options = {}) [remove_column_sql(table_name, :updated_at), remove_column_sql(table_name, :created_at)] end private def version - @version ||= full_version.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i } + @version ||= full_version.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map(&:to_i) end def mariadb? full_version =~ /mariadb/i end - def supports_views? - version[0] >= 5 - end - def supports_rename_index? mariadb? ? false : (version[0] == 5 && version[1] >= 7) || version[0] >= 6 end @@ -818,9 +848,9 @@ module ActiveRecord # Gather up all of the SET variables... variable_assignments = variables.map do |k, v| if v == ':default' || v == :default - "@@SESSION.#{k.to_s} = DEFAULT" # Sets the value to the global or compile default + "@@SESSION.#{k} = DEFAULT" # Sets the value to the global or compile default elsif !v.nil? - "@@SESSION.#{k.to_s} = #{quote(v)}" + "@@SESSION.#{k} = #{quote(v)}" end # or else nil; compact to clear nils out end.compact.join(', ') @@ -837,6 +867,30 @@ module ActiveRecord end end end + + def create_table_definition(name, temporary, options, as = nil) # :nodoc: + TableDefinition.new(native_database_types, name, temporary, options, as) + end + + class MysqlString < Type::String # :nodoc: + def type_cast_for_database(value) + case value + when true then "1" + when false then "0" + else super + end + end + + private + + def cast_value(value) + case value + when true then "1" + when false then "0" + else super + end + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index 5f9cc6edd0..af307b57a4 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -16,7 +16,7 @@ module ActiveRecord attr_reader :name, :cast_type, :null, :sql_type, :default, :default_function delegate :type, :precision, :scale, :limit, :klass, :accessor, - :number?, :binary?, :changed?, + :text?, :number?, :binary?, :changed?, :type_cast_from_user, :type_cast_from_database, :type_cast_for_database, :type_cast_for_schema, to: :cast_type @@ -56,6 +56,26 @@ module ActiveRecord clone.instance_variable_set('@cast_type', type) end end + + def ==(other) + other.name == name && + other.default == default && + other.cast_type == cast_type && + other.sql_type == sql_type && + other.null == null && + other.default_function == default_function + end + alias :eql? :== + + def hash + attributes_for_hash.hash + end + + private + + def attributes_for_hash + [self.class, name, default, cast_type, sql_type, null, default_function] + end end end # :startdoc: diff --git a/activerecord/lib/active_record/connection_adapters/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/connection_specification.rb index d28a54b8f9..e54e3199ff 100644 --- a/activerecord/lib/active_record/connection_adapters/connection_specification.rb +++ b/activerecord/lib/active_record/connection_adapters/connection_specification.rb @@ -1,4 +1,5 @@ require 'uri' +require 'active_support/core_ext/string/filters' module ActiveRecord module ConnectionAdapters @@ -33,7 +34,7 @@ module ActiveRecord def initialize(url) raise "Database URL cannot be empty" if url.blank? @uri = uri_parser.parse(url) - @adapter = @uri.scheme.gsub('-', '_') + @adapter = @uri.scheme.tr('-', '_') @adapter = "postgresql" if @adapter == "postgres" if @uri.opaque @@ -221,15 +222,19 @@ module ActiveRecord # this ambiguous behaviour and in the future this function # can be removed in favor of resolve_url_connection. if configurations.key?(spec) || spec !~ /:/ - ActiveSupport::Deprecation.warn "Passing a string to ActiveRecord::Base.establish_connection " \ - "for a configuration lookup is deprecated, please pass a symbol (#{spec.to_sym.inspect}) instead" + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Passing a string to ActiveRecord::Base.establish_connection for a + configuration lookup is deprecated, please pass a symbol + (#{spec.to_sym.inspect}) instead. + MSG + resolve_symbol_connection(spec) else resolve_url_connection(spec) end end - # Takes the environment such as `:production` or `:development`. + # Takes the environment such as +:production+ or +:development+. # This requires that the @configurations was initialized with a key that # matches. # diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 38bdddefba..75f244b3f3 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -66,21 +66,17 @@ module ActiveRecord exception.error_number if exception.respond_to?(:error_number) end + #-- # QUOTING ================================================== + #++ def quote_string(string) @connection.escape(string) end - def quoted_date(value) - if value.acts_like?(:time) && value.respond_to?(:usec) - "#{super}.#{sprintf("%06d", value.usec)}" - else - super - end - end - + #-- # CONNECTION MANAGEMENT ==================================== + #++ def active? return false unless @connection @@ -104,7 +100,9 @@ module ActiveRecord end end + #-- # DATABASE STATEMENTS ====================================== + #++ def explain(arel, binds = []) sql = "EXPLAIN #{to_sql(arel, binds.dup)}" @@ -232,11 +230,6 @@ module ActiveRecord alias exec_without_stmt exec_query - # Returns an ActiveRecord::Result instance. - def select(sql, name = nil, binds = []) - exec_query(sql, name) - end - def insert_sql(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) super id_value || @connection.last_id diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index da3aecf69a..23d8389abb 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -58,7 +58,7 @@ module ActiveRecord # * <tt>:encoding</tt> - (Optional) Sets the client encoding by executing "SET NAMES <encoding>" after connection. # * <tt>:reconnect</tt> - Defaults to false (See MySQL documentation: http://dev.mysql.com/doc/refman/5.0/en/auto-reconnect.html). # * <tt>:strict</tt> - Defaults to true. Enable STRICT_ALL_TABLES. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.0/en/server-sql-mode.html) - # * <tt>:variables</tt> - (Optional) A hash session variables to send as `SET @@SESSION.key = value` on each database connection. Use the value `:default` to set a variable to its DEFAULT value. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.0/en/set-statement.html). + # * <tt>:variables</tt> - (Optional) A hash session variables to send as <tt>SET @@SESSION.key = value</tt> on each database connection. Use the value +:default+ to set a variable to its DEFAULT value. (See MySQL documentation: http://dev.mysql.com/doc/refman/5.0/en/set-statement.html). # * <tt>:sslca</tt> - Necessary to use MySQL with an SSL connection. # * <tt>:sslkey</tt> - Necessary to use MySQL with an SSL connection. # * <tt>:sslcert</tt> - Necessary to use MySQL with an SSL connection. @@ -88,7 +88,7 @@ module ActiveRecord end def clear - cache.values.each do |hash| + cache.each_value do |hash| hash[:stmt].close end cache.clear @@ -137,7 +137,9 @@ module ActiveRecord @connection.quote(string) end + #-- # CONNECTION MANAGEMENT ==================================== + #++ def active? if @connection.respond_to?(:stat) @@ -178,7 +180,9 @@ module ActiveRecord end end + #-- # DATABASE STATEMENTS ====================================== + #++ def select_rows(sql, name = nil, binds = []) @connection.query_with_result = true @@ -419,9 +423,7 @@ module ActiveRecord cols = nil if metadata = stmt.result_metadata - cols = cache[:cols] ||= metadata.fetch_fields.map { |field| - field.name - } + cols = cache[:cols] ||= metadata.fetch_fields.map(&:name) metadata.free end @@ -465,7 +467,7 @@ module ActiveRecord def select(sql, name = nil, binds = []) @connection.query_with_result = true - rows = exec_query(sql, name, binds) + rows = super @connection.more_results && @connection.next_result # invoking stored procedures with CLIENT_MULTI_RESULTS requires this to tidy up else connection will be dropped rows end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb index 89a7257d77..d09468329a 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -156,10 +156,6 @@ module ActiveRecord end end - def substitute_at(column, index) - Arel::Nodes::BindParam.new "$#{index + 1}" - end - def exec_query(sql, name = 'SQL', binds = []) execute_and_clear(sql, name, binds) do |result| types = {} diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb index cd5efe2bb8..c203e6c604 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/array.rb @@ -34,6 +34,9 @@ module ActiveRecord end def type_cast_from_user(value) + if value.is_a?(::String) + value = parse_pg_array(value) + end type_cast_array(value, :type_cast_from_user) end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb index 997613d7be..6bd1b8ecae 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bytea.rb @@ -5,6 +5,7 @@ module ActiveRecord class Bytea < Type::Binary # :nodoc: def type_cast_from_database(value) return if value.nil? + return value.to_s if value.is_a?(Type::Binary::Data) PGconn.unescape_bytea(super) end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb index a53b4ee8e2..222f10fa8f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/cidr.rb @@ -12,15 +12,15 @@ module ActiveRecord # If the subnet mask is equal to /32, don't output it if subnet_mask == (2**32 - 1) - "\"#{value.to_s}\"" + "\"#{value}\"" else - "\"#{value.to_s}/#{subnet_mask.to_s(2).count('1')}\"" + "\"#{value}/#{subnet_mask.to_s(2).count('1')}\"" end end def type_cast_for_database(value) if IPAddr === value - "#{value.to_s}/#{value.instance_variable_get(:@mask_addr).to_s(2).count('1')}" + "#{value}/#{value.instance_variable_get(:@mask_addr).to_s(2).count('1')}" else value end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb index 84b9490ba3..961e6224c4 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord module ConnectionAdapters module PostgreSQL @@ -25,10 +27,11 @@ module ActiveRecord if !infinity?(from) && extracted[:exclude_start] if from.respond_to?(:succ) from = from.succ - ActiveSupport::Deprecation.warn \ - "Excluding the beginning of a Range is only partialy supported " \ - "through `#succ`. This is not reliable and will be removed in " \ - "the future." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Excluding the beginning of a Range is only partialy supported + through `#succ`. This is not reliable and will be removed in + the future. + MSG else raise ArgumentError, "The Ruby Range object does not support excluding the beginning of a Range. (unsupported value: '#{value}')" end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb index 2d2fede4e8..b2a42e9ebb 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/specialized_string.rb @@ -8,6 +8,10 @@ module ActiveRecord def initialize(type) @type = type end + + def text? + false + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb index e396ff4a1e..9b3de41fab 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/type_map_initializer.rb @@ -4,7 +4,7 @@ module ActiveRecord module OID # :nodoc: # This class uses the data from PostgreSQL pg_type table to build # the OID -> Type mapping. - # - OID is and integer representing the type. + # - OID is an integer representing the type. # - Type is an OID::Type object. # This class has side effects on the +store+ passed during initialization. class TypeMapInitializer # :nodoc: @@ -39,14 +39,14 @@ module ActiveRecord end def register_array_type(row) - if subtype = @store.lookup(row['typelem'].to_i) - register row['oid'], OID::Array.new(subtype, row['typdelim']) + register_with_subtype(row['oid'], row['typelem'].to_i) do |subtype| + OID::Array.new(subtype, row['typdelim']) end end def register_range_type(row) - if subtype = @store.lookup(row['rngsubtype'].to_i) - register row['oid'], OID::Range.new(subtype, row['typname'].to_sym) + register_with_subtype(row['oid'], row['rngsubtype'].to_i) do |subtype| + OID::Range.new(subtype, row['typname'].to_sym) end end @@ -64,9 +64,13 @@ module ActiveRecord end end - def register(oid, oid_type) - oid = assert_valid_registration(oid, oid_type) - @store.register_type(oid, oid_type) + def register(oid, oid_type = nil, &block) + oid = assert_valid_registration(oid, oid_type || block) + if block_given? + @store.register_type(oid, &block) + else + @store.register_type(oid, oid_type) + end end def alias_type(oid, target) @@ -74,6 +78,14 @@ module ActiveRecord @store.alias_type(oid, target) end + def register_with_subtype(oid, target_oid) + if @store.key?(target_oid) + register(oid) do |_, *args| + yield @store.lookup(target_oid, *args) + end + end + end + def assert_valid_registration(oid, oid_type) raise ArgumentError, "can't register nil type for OID #{oid}" if oid_type.nil? oid.to_i diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb index 033e0324bb..97b4fd3d08 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb @@ -3,14 +3,7 @@ module ActiveRecord module PostgreSQL module OID # :nodoc: class Uuid < Type::Value # :nodoc: - RFC_4122 = %r{\A\{?[a-fA-F0-9]{4}-? - [a-fA-F0-9]{4}-? - [a-fA-F0-9]{4}-? - [1-5][a-fA-F0-9]{3}-? - [8-Bab][a-fA-F0-9]{3}-? - [a-fA-F0-9]{4}-? - [a-fA-F0-9]{4}-? - [a-fA-F0-9]{4}-?\}?\z}x + ACCEPTABLE_UUID = %r{\A\{?([a-fA-F0-9]{4}-?){8}\}?\z}x alias_method :type_cast_for_database, :type_cast_from_database @@ -19,7 +12,7 @@ module ActiveRecord end def type_cast(value) - value.to_s[RFC_4122, 0] + value.to_s[ACCEPTABLE_UUID, 0] end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb index cf5c8d288e..607848884b 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -14,22 +14,6 @@ module ActiveRecord @connection.unescape_bytea(value) if value end - # Quotes PostgreSQL-specific data types for SQL input. - def quote(value, column = nil) #:nodoc: - return super unless column - - case value - when Float - if value.infinite? || value.nan? - "'#{value.to_s}'" - else - super - end - else - super - end - end - # Quotes strings for use in SQL input. def quote_string(s) #:nodoc: @connection.escape(s) @@ -59,16 +43,12 @@ module ActiveRecord # Quote date/time values for use in SQL input. Includes microseconds # if the value is a Time responding to usec. def quoted_date(value) #:nodoc: - result = super - if value.acts_like?(:time) && value.respond_to?(:usec) - result = "#{result}.#{sprintf("%06d", value.usec)}" - end - if value.year <= 0 bce_year = format("%04d", -value.year + 1) - result = result.sub(/^-?\d+/, bce_year) + " BC" + super.sub(/^-?\d+/, bce_year) + " BC" + else + super end - result end # Does not quote function default values for UUID columns @@ -94,6 +74,12 @@ module ActiveRecord elsif value.hex? "X'#{value}'" end + when Float + if value.infinite? || value.nan? + "'#{value}'" + else + super + end else super end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb index b37630a04c..a9522e152f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb @@ -125,10 +125,8 @@ module ActiveRecord # a record (as primary keys cannot be +nil+). This might be done via the # +SecureRandom.uuid+ method and a +before_save+ callback, for instance. def primary_key(name, type = :primary_key, options = {}) - return super unless type == :uuid - options[:default] = options.fetch(:default, 'uuid_generate_v4()') - options[:primary_key] = true - column name, type, options + options[:default] = options.fetch(:default, 'uuid_generate_v4()') if type == :uuid + super end def new_column_definition(name, type, options) # :nodoc: diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index 767b6b614a..a90adcf4aa 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -4,29 +4,22 @@ module ActiveRecord class SchemaCreation < AbstractAdapter::SchemaCreation private - def visit_AddColumn(o) - sql_type = type_to_sql(o.type, o.limit, o.precision, o.scale) - sql = "ADD COLUMN #{quote_column_name(o.name)} #{sql_type}" - add_column_options!(sql, column_options(o)) - end - - def visit_ColumnDefinition(o) - sql = super - if o.primary_key? && o.type != :primary_key - sql << " PRIMARY KEY " - add_column_options!(sql, column_options(o)) - end - sql + def column_options(o) + column_options = super + column_options[:array] = o.array + column_options end def add_column_options!(sql, options) - if options[:array] || options[:column].try(:array) + if options[:array] sql << '[]' end + super + end - column = options.fetch(:column) { return super } - if column.type == :uuid && options[:default] =~ /\(\)/ - sql << " DEFAULT #{options[:default]}" + def quote_default_expression(value, column) + if column.type == :uuid && value =~ /\(\)/ + value else super end @@ -60,8 +53,8 @@ module ActiveRecord def create_database(name, options = {}) options = { encoding: 'utf8' }.merge!(options.symbolize_keys) - option_string = options.sum do |key, value| - case key + option_string = options.inject("") do |memo, (key, value)| + memo += case key when :owner " OWNER = \"#{value}\"" when :template @@ -118,6 +111,10 @@ module ActiveRecord SQL end + def drop_table(table_name, options = {}) + execute "DROP TABLE #{quote_table_name(table_name)}#{' CASCADE' if options[:force] == :cascade}" + end + # Returns true if schema exists. def schema_exists?(name) exec_query(<<-SQL, 'SCHEMA').rows.first[0].to_i > 0 @@ -293,6 +290,23 @@ module ActiveRecord result.rows.first.first end + # Sets the sequence of a table's primary key to the specified value. + def set_pk_sequence!(table, value) #:nodoc: + pk, sequence = pk_and_sequence_for(table) + + if pk + if sequence + quoted_sequence = quote_table_name(sequence) + + select_value <<-end_sql, 'SCHEMA' + SELECT setval('#{quoted_sequence}', #{value}) + end_sql + else + @logger.warn "#{table} has primary key #{pk} with no default sequence" if @logger + end + end + end + # Resets the sequence of a table's primary key to the maximum value. def reset_pk_sequence!(table, pk = nil, sequence = nil) #:nodoc: unless pk and sequence @@ -371,15 +385,15 @@ module ActiveRecord # Returns just a table's primary key def primary_key(table) - row = exec_query(<<-end_sql, 'SCHEMA').rows.first + pks = exec_query(<<-end_sql, 'SCHEMA').rows SELECT attr.attname FROM pg_attribute attr - INNER JOIN pg_constraint cons ON attr.attrelid = cons.conrelid AND attr.attnum = cons.conkey[1] + INNER JOIN pg_constraint cons ON attr.attrelid = cons.conrelid AND attr.attnum = any(cons.conkey) WHERE cons.contype = 'p' AND cons.conrelid = '#{quote_table_name(table)}'::regclass end_sql - - row && row.first + return nil unless pks.count == 1 + pks[0][0] end # Renames a table. @@ -394,7 +408,10 @@ module ActiveRecord pk, seq = pk_and_sequence_for(new_name) if seq && seq.identifier == "#{table_name}_#{pk}_seq" new_seq = "#{new_name}_#{pk}_seq" + idx = "#{table_name}_pkey" + new_idx = "#{new_name}_pkey" execute "ALTER TABLE #{quote_table_name(seq)} RENAME TO #{quote_table_name(new_seq)}" + execute "ALTER INDEX #{quote_table_name(idx)} RENAME TO #{quote_table_name(new_idx)}" end rename_table_indexes(table_name, new_name) @@ -413,7 +430,12 @@ module ActiveRecord quoted_table_name = quote_table_name(table_name) sql_type = type_to_sql(type, options[:limit], options[:precision], options[:scale]) sql_type << "[]" if options[:array] - execute "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{sql_type}" + sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quote_column_name(column_name)} TYPE #{sql_type}" + sql << " USING #{options[:using]}" if options[:using] + if options[:cast_as] + sql << " USING CAST(#{quote_column_name(column_name)} AS #{type_to_sql(options[:cast_as], options[:limit], options[:precision], options[:scale])})" + end + execute sql change_column_default(table_name, column_name, options[:default]) if options_include_default?(options) change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null) @@ -461,12 +483,14 @@ module ActiveRecord end def rename_index(table_name, old_name, new_name) + validate_index_length!(table_name, new_name) + execute "ALTER INDEX #{quote_column_name(old_name)} RENAME TO #{quote_table_name(new_name)}" end def foreign_keys(table_name) fk_info = select_all <<-SQL.strip_heredoc - SELECT t2.relname AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete + SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete FROM pg_constraint c JOIN pg_class t1 ON c.conrelid = t1.oid JOIN pg_class t2 ON c.confrelid = t2.oid @@ -488,6 +512,7 @@ module ActiveRecord options[:on_delete] = extract_foreign_key_action(row['on_delete']) options[:on_update] = extract_foreign_key_action(row['on_update']) + ForeignKeyDefinition.new(table_name, row['to_table'], options) end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb b/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb index 0290bcb48c..9a0b80d7d3 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/utils.rb @@ -18,7 +18,11 @@ module ActiveRecord end def quoted - parts.map { |p| PGconn.quote_ident(p) }.join SEPARATOR + if schema + PGconn.quote_ident(schema) << SEPARATOR << PGconn.quote_ident(identifier) + else + PGconn.quote_ident(identifier) + end end def ==(o) @@ -32,8 +36,11 @@ module ActiveRecord protected def unquote(part) - return unless part - part.gsub(/(^"|"$)/,'') + if part && part.start_with?('"') + part[1..-2] + else + part + end end def parts @@ -57,7 +64,11 @@ module ActiveRecord # * <tt>"schema_name".table_name</tt> # * <tt>"schema.name"."table name"</tt> def extract_schema_qualified_name(string) - table, schema = string.scan(/[^".\s]+|"[^"]*"/)[0..1].reverse + schema, table = string.scan(/[^".\s]+|"[^"]*"/) + if table.nil? + table = schema + schema = nil + end PostgreSQL::Name.new(schema, table) end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 52a03d0e6d..02cafc8079 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -13,7 +13,7 @@ require 'active_record/connection_adapters/postgresql/database_statements' require 'arel/visitors/bind_visitor' # Make sure we're using pg high enough for PGResult#values -gem 'pg', '~> 0.11' +gem 'pg', '~> 0.15' require 'pg' require 'ipaddr' @@ -78,6 +78,7 @@ module ActiveRecord NATIVE_DATABASE_TYPES = { primary_key: "serial primary key", + bigserial: "bigserial", string: { name: "character varying" }, text: { name: "text" }, integer: { name: "integer" }, @@ -94,6 +95,7 @@ module ActiveRecord int8range: { name: "int8range" }, binary: { name: "bytea" }, boolean: { name: "boolean" }, + bigint: { name: "bigint" }, xml: { name: "xml" }, tsvector: { name: "tsvector" }, hstore: { name: "hstore" }, @@ -102,6 +104,7 @@ module ActiveRecord macaddr: { name: "macaddr" }, uuid: { name: "uuid" }, json: { name: "json" }, + jsonb: { name: "jsonb" }, ltree: { name: "ltree" }, citext: { name: "citext" }, point: { name: "point" }, @@ -122,16 +125,16 @@ module ActiveRecord PostgreSQL::SchemaCreation.new self end - # Adds `:array` option to the default set provided by the + # Adds +:array+ option to the default set provided by the # AbstractAdapter - def prepare_column_options(column, types) # :nodoc: + def prepare_column_options(column) # :nodoc: spec = super spec[:array] = 'true' if column.respond_to?(:array) && column.array spec[:default] = "\"#{column.default_function}\"" if column.default_function spec end - # Adds `:array` as a valid migration key + # Adds +:array+ as a valid migration key def migration_keys super + [:array] end @@ -158,6 +161,10 @@ module ActiveRecord true end + def supports_views? + true + end + def index_algorithms { concurrently: 'CONCURRENTLY' } end @@ -251,6 +258,10 @@ module ActiveRecord @statements.clear end + def truncate(table_name, name = nil) + exec_query "TRUNCATE TABLE #{quote_table_name(table_name)}", name, [] + end + # Is this connection alive and ready for queries? def active? @connection.query 'SELECT 1' @@ -383,6 +394,16 @@ module ActiveRecord super(oid) end + def column_name_for_operation(operation, node) # :nodoc: + OPERATION_ALIASES.fetch(operation) { operation.downcase } + end + + OPERATION_ALIASES = { # :nodoc: + "maximum" => "max", + "minimum" => "min", + "average" => "avg", + } + protected # Returns the version of the connected PostgreSQL server. @@ -424,8 +445,8 @@ module ActiveRecord def initialize_type_map(m) # :nodoc: register_class_with_limit m, 'int2', OID::Integer - m.alias_type 'int4', 'int2' - m.alias_type 'int8', 'int2' + register_class_with_limit m, 'int4', OID::Integer + register_class_with_limit m, 'int8', OID::Integer m.alias_type 'oid', 'int2' m.register_type 'float4', OID::Float.new m.alias_type 'float8', 'float4' @@ -495,9 +516,12 @@ module ActiveRecord def extract_limit(sql_type) # :nodoc: case sql_type - when /^bigint/i; 8 - when /^smallint/i; 2 - else super + when /^bigint/i, /^int8/i + 8 + when /^smallint/i + 2 + else + super end end @@ -511,7 +535,7 @@ module ActiveRecord when 'true', 'false' default # Numeric types - when /\A\(?(-?\d+(\.\d*)?\)?(::bigint)?)\z/ + when /\A\(?(-?\d+(\.\d*)?)\)?(::bigint)?\z/ $1 # Object identifier types when /\A-?\d+\z/ @@ -575,9 +599,7 @@ module ActiveRecord } log(sql, name, type_casted_binds, stmt_key) do - @connection.send_query_prepared(stmt_key, type_casted_binds.map { |_, val| val }) - @connection.block - @connection.get_last_result + @connection.exec_prepared(stmt_key, type_casted_binds.map { |_, val| val }) end rescue ActiveRecord::StatementInvalid => e pgerror = e.original_exception @@ -669,9 +691,9 @@ module ActiveRecord variables.map do |k, v| if v == ':default' || v == :default # Sets the value to the global or compile default - execute("SET SESSION #{k.to_s} TO DEFAULT", 'SCHEMA') + execute("SET SESSION #{k} TO DEFAULT", 'SCHEMA') elsif !v.nil? - execute("SET SESSION #{k.to_s} TO #{quote(v)}", 'SCHEMA') + execute("SET SESSION #{k} TO #{quote(v)}", 'SCHEMA') end end end @@ -689,12 +711,6 @@ module ActiveRecord exec_query("SELECT currval('#{sequence_name}')", 'SQL') end - # Executes a SELECT query and returns the results, performing any data type - # conversions that are required to be performed here instead of in PostgreSQLColumn. - def select(sql, name = nil, binds = []) - exec_query(sql, name, binds) - end - # Returns the list of a table's column names, data types, and default values. # # The underlying query is roughly: diff --git a/activerecord/lib/active_record/connection_adapters/schema_cache.rb b/activerecord/lib/active_record/connection_adapters/schema_cache.rb index a10ce330c7..37ff4e4613 100644 --- a/activerecord/lib/active_record/connection_adapters/schema_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/schema_cache.rb @@ -61,9 +61,7 @@ module ActiveRecord end def size - [@columns, @columns_hash, @primary_keys, @tables].map { |x| - x.size - }.inject :+ + [@columns, @columns_hash, @primary_keys, @tables].map(&:size).inject :+ end # Clear out internal caches for table with +table_name+. diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 4481df974d..67b2c6b1e6 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -88,11 +88,11 @@ module ActiveRecord include Comparable def initialize(version_string) - @version = version_string.split('.').map { |v| v.to_i } + @version = version_string.split('.').map(&:to_i) end def <=>(version_string) - @version <=> version_string.split('.').map { |v| v.to_i } + @version <=> version_string.split('.').map(&:to_i) end end @@ -115,7 +115,7 @@ module ActiveRecord end def clear - cache.values.each do |hash| + cache.each_value do |hash| dealloc hash[:stmt] end cache.clear @@ -179,7 +179,7 @@ module ActiveRecord true end - def supports_add_column? + def supports_views? true end @@ -256,17 +256,9 @@ module ActiveRecord %Q("#{name.to_s.gsub('"', '""')}") end - # Quote date/time values for use in SQL input. Includes microseconds - # if the value is a Time responding to usec. - def quoted_date(value) #:nodoc: - if value.respond_to?(:usec) - "#{super}.#{sprintf("%06d", value.usec)}" - else - super - end - end - + #-- # DATABASE STATEMENTS ====================================== + #++ def explain(arel, binds = []) sql = "EXPLAIN QUERY PLAN #{to_sql(arel, binds)}" @@ -369,7 +361,7 @@ module ActiveRecord sql = <<-SQL SELECT name FROM sqlite_master - WHERE type = 'table' AND NOT name = 'sqlite_sequence' + WHERE (type = 'table' OR type = 'view') AND NOT name = 'sqlite_sequence' SQL sql << " AND name = #{quote_table_name(table_name)}" if table_name @@ -426,10 +418,9 @@ module ActiveRecord end def primary_key(table_name) #:nodoc: - column = table_structure(table_name).find { |field| - field['pk'] == 1 - } - column && column['name'] + pks = table_structure(table_name).select { |f| f['pk'] > 0 } + return nil unless pks.count == 1 + pks[0]['name'] end def remove_index!(table_name, index_name) #:nodoc: @@ -447,12 +438,12 @@ module ActiveRecord # See: http://www.sqlite.org/lang_altertable.html # SQLite has an additional restriction on the ALTER TABLE statement - def valid_alter_table_options( type, options) + def valid_alter_table_type?(type) type.to_sym != :primary_key end def add_column(table_name, column_name, type, options = {}) #:nodoc: - if supports_add_column? && valid_alter_table_options( type, options ) + if valid_alter_table_type?(type) super(table_name, column_name, type, options) else alter_table(table_name) do |definition| @@ -510,10 +501,6 @@ module ActiveRecord register_class_with_limit m, %r(char)i, SQLite3String end - def select(sql, name = nil, binds = []) #:nodoc: - exec_query(sql, name, binds) - end - def table_structure(table_name) structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})", 'SCHEMA').to_hash raise(ActiveRecord::StatementInvalid, "Could not find table '#{table_name}'") if structure.empty? @@ -558,7 +545,7 @@ module ActiveRecord end copy_table_indexes(from, to, options[:rename] || {}) copy_table_contents(from, to, - @definition.columns.map {|column| column.name}, + @definition.columns.map(&:name), options[:rename] || {}) end @@ -571,7 +558,7 @@ module ActiveRecord name = name[1..-1] end - to_column_names = columns(to).map { |c| c.name } + to_column_names = columns(to).map(&:name) columns = index.columns.map {|c| rename[c] || c }.select do |column| to_column_names.include?(column) end @@ -588,7 +575,7 @@ module ActiveRecord def copy_table_contents(from, to, columns, rename = {}) #:nodoc: column_mappings = Hash[columns.map {|name| [name, name]}] rename.each { |a| column_mappings[a.last] = a.first } - from_columns = columns(from).collect {|col| col.name} + from_columns = columns(from).collect(&:name) columns = columns.find_all{|col| from_columns.include?(column_mappings[col])} quoted_columns = columns.map { |col| quote_column_name(col) } * ',' diff --git a/activerecord/lib/active_record/connection_handling.rb b/activerecord/lib/active_record/connection_handling.rb index 31e7390bf7..984af79642 100644 --- a/activerecord/lib/active_record/connection_handling.rb +++ b/activerecord/lib/active_record/connection_handling.rb @@ -1,6 +1,6 @@ module ActiveRecord module ConnectionHandling - RAILS_ENV = -> { Rails.env if defined?(Rails) } + RAILS_ENV = -> { (Rails.env if defined?(Rails.env)) || ENV["RAILS_ENV"] || ENV["RACK_ENV"] } DEFAULT_ENV = -> { RAILS_ENV.call || "default_env" } # Establishes the connection to the database. Accepts a hash as input where diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 2e9c9e3197..38b2d632d2 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -1,6 +1,7 @@ +require 'thread' require 'active_support/core_ext/hash/indifferent_access' require 'active_support/core_ext/object/duplicable' -require 'thread' +require 'active_support/core_ext/string/filters' module ActiveRecord module Core @@ -84,12 +85,13 @@ module ActiveRecord mattr_accessor :dump_schema_after_migration, instance_writer: false self.dump_schema_after_migration = true - # :nodoc: mattr_accessor :maintain_test_schema, instance_accessor: false def self.disable_implicit_join_references=(value) - ActiveSupport::Deprecation.warn("Implicit join references were removed with Rails 4.1." \ - "Make sure to remove this configuration because it does nothing.") + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Implicit join references were removed with Rails 4.1. + Make sure to remove this configuration because it does nothing. + MSG end class_attribute :default_connection_handler, instance_writer: false @@ -124,17 +126,22 @@ module ActiveRecord def find(*ids) # We don't have cache keys for this stuff yet return super unless ids.length == 1 + # Allow symbols to super to maintain compatibility for deprecated finders until Rails 5 + return super if ids.first.kind_of?(Symbol) return super if block_given? || primary_key.nil? || default_scopes.any? || + current_scope || columns_hash.include?(inheritance_column) || ids.first.kind_of?(Array) id = ids.first if ActiveRecord::Base === id id = id.id - ActiveSupport::Deprecation.warn "You are passing an instance of ActiveRecord::Base to `find`." \ - "Please pass the id of the object by calling `.id`" + ActiveSupport::Deprecation.warn(<<-MSG.squish) + You are passing an instance of ActiveRecord::Base to `find`. + Please pass the id of the object by calling `.id` + MSG end key = primary_key @@ -148,6 +155,8 @@ module ActiveRecord raise RecordNotFound, "Couldn't find #{name} with '#{primary_key}'=#{id}" end record + rescue RangeError + raise RecordNotFound, "Couldn't find #{name} with an out of range value for '#{primary_key}'" end def find_by(*args) @@ -160,6 +169,9 @@ module ActiveRecord v.nil? || Array === v || Hash === v } + # We can't cache Post.find_by(author: david) ...yet + return super unless hash.keys.all? { |k| columns_hash.has_key?(k.to_s) } + key = hash.keys klass = self @@ -175,16 +187,16 @@ module ActiveRecord s.execute(hash.values, self, connection).first rescue TypeError => e raise ActiveRecord::StatementInvalid.new(e.message, e) + rescue RangeError + nil end end def find_by!(*args) - find_by(*args) or raise RecordNotFound + find_by(*args) or raise RecordNotFound.new("Couldn't find #{name}") end def initialize_generated_modules - super - generated_association_methods end @@ -223,7 +235,7 @@ module ActiveRecord # scope :published_and_commented, -> { published.and(self.arel_table[:comments_count].gt(0)) } # end def arel_table # :nodoc: - @arel_table ||= Arel::Table.new(table_name, arel_engine) + @arel_table ||= Arel::Table.new(table_name, type_caster: type_caster) end # Returns the Arel engine. @@ -236,10 +248,18 @@ module ActiveRecord end end + def predicate_builder # :nodoc: + @predicate_builder ||= PredicateBuilder.new(table_metadata) + end + + def type_caster # :nodoc: + TypeCaster::Map.new(self) + end + private - def relation #:nodoc: - relation = Relation.create(self, arel_table) + def relation # :nodoc: + relation = Relation.create(self, arel_table, predicate_builder) if finder_needs_type_condition? relation.where(type_condition).create_with(inheritance_column.to_sym => sti_name) @@ -247,6 +267,10 @@ module ActiveRecord relation end end + + def table_metadata # :nodoc: + TableMetadata.new(self, arel_table) + end end # New objects can be instantiated as either empty (pass no construction parameter) or pre-set with @@ -258,7 +282,7 @@ module ActiveRecord # # Instantiates a single new object # User.new(first_name: 'Jamie') def initialize(attributes = nil, options = {}) - @attributes = self.class.default_attributes.dup + @attributes = self.class._default_attributes.dup init_internals initialize_internals_callback @@ -269,7 +293,7 @@ module ActiveRecord init_attributes(attributes, options) if attributes yield self if block_given? - run_callbacks :initialize unless _initialize_callbacks.empty? + _run_initialize_callbacks end # Initialize an empty model object from +coder+. +coder+ must contain @@ -291,8 +315,8 @@ module ActiveRecord self.class.define_attribute_methods - run_callbacks :find - run_callbacks :initialize + _run_find_callbacks + _run_initialize_callbacks self end @@ -328,7 +352,7 @@ module ActiveRecord @attributes = @attributes.dup @attributes.reset(self.class.primary_key) - run_callbacks(:initialize) unless _initialize_callbacks.empty? + _run_initialize_callbacks @aggregation_cache = {} @association_cache = {} @@ -524,8 +548,6 @@ module ActiveRecord end def init_internals - @attributes.ensure_initialized(self.class.primary_key) - @aggregation_cache = {} @association_cache = {} @readonly = false diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index f0b6afc4b4..7d8e0a2063 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -20,7 +20,7 @@ module ActiveRecord def reset_counters(id, *counters) object = find(id) counters.each do |counter_association| - has_many_association = _reflect_on_association(counter_association.to_sym) + has_many_association = _reflect_on_association(counter_association) unless has_many_association has_many = reflect_on_all_associations(:has_many) has_many_association = has_many.find { |association| association.counter_cache_column && association.counter_cache_column.to_sym == counter_association.to_sym } @@ -37,10 +37,9 @@ module ActiveRecord reflection = child_class._reflections.values.find { |e| e.belongs_to? && e.foreign_key.to_s == foreign_key && e.options[:counter_cache].present? } counter_name = reflection.counter_cache_column - stmt = unscoped.where(arel_table[primary_key].eq(object.id)).arel.compile_update({ - arel_table[counter_name] => object.send(counter_association).count(:all) - }, primary_key) - connection.update stmt + unscoped.where(primary_key => object.id).update_all( + counter_name => object.send(counter_association).count(:all) + ) end return true end @@ -123,16 +122,6 @@ module ActiveRecord end end - protected - - def actually_destroyed? - @_actually_destroyed - end - - def clear_destroy_state - @_actually_destroyed = nil - end - private def _create_record(*) diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 5958373e88..f053372cfb 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -142,7 +142,7 @@ module ActiveRecord private def save_changed_attribute(attr_name, old) if (mapping = self.class.defined_enums[attr_name.to_s]) - value = read_attribute(attr_name) + value = _read_attribute(attr_name) if attribute_changed?(attr_name) if mapping[old] == value clear_attribute_changes([attr_name]) diff --git a/activerecord/lib/active_record/errors.rb b/activerecord/lib/active_record/errors.rb index 52c70977ef..fc28ab585f 100644 --- a/activerecord/lib/active_record/errors.rb +++ b/activerecord/lib/active_record/errors.rb @@ -52,10 +52,29 @@ module ActiveRecord # Raised by ActiveRecord::Base.save! and ActiveRecord::Base.create! methods when record cannot be # saved because record is invalid. class RecordNotSaved < ActiveRecordError + attr_reader :record + + def initialize(message, record = nil) + @record = record + super(message) + end end # Raised by ActiveRecord::Base.destroy! when a call to destroy would return false. + # + # begin + # complex_operation_that_internally_calls_destroy! + # rescue ActiveRecord::RecordNotDestroyed => invalid + # puts invalid.record.errors + # end + # class RecordNotDestroyed < ActiveRecordError + attr_reader :record + + def initialize(record) + @record = record + super() + end end # Superclass for all database execution errors. @@ -167,7 +186,7 @@ module ActiveRecord def initialize(record, attribute) @record = record @attribute = attribute.to_s - super("unknown attribute: #{attribute}") + super("unknown attribute '#{attribute}' for #{@record.class}.") end end @@ -177,6 +196,7 @@ module ActiveRecord # offending attribute. class AttributeAssignmentError < ActiveRecordError attr_reader :exception, :attribute + def initialize(message, exception, attribute) super(message) @exception = exception @@ -189,6 +209,7 @@ module ActiveRecord # objects, each corresponding to the error while assigning to an attribute. class MultiparameterAssignmentErrors < ActiveRecordError attr_reader :errors + def initialize(errors) @errors = errors end diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 4527452f1a..4732462b05 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -181,6 +181,9 @@ module ActiveRecord # * Stable, autogenerated IDs # * Label references for associations (belongs_to, has_one, has_many) # * HABTM associations as inline lists + # + # There are some more advanced features available even if the id is specified: + # # * Autofilled timestamp columns # * Fixture label interpolation # * Support for YAML defaults @@ -522,7 +525,7 @@ module ActiveRecord conn = fs.model_class.respond_to?(:connection) ? fs.model_class.connection : connection table_rows = fs.table_rows - table_rows.keys.each do |table| + table_rows.each_key do |table| conn.delete "DELETE FROM #{conn.quote_table_name(table)}", 'Fixture Delete' end @@ -646,7 +649,7 @@ module ActiveRecord model_class end - reflection_class._reflections.values.each do |association| + reflection_class._reflections.each_value do |association| case association.macro when :belongs_to # Do not replace association name with association foreign key if they are named the same @@ -658,7 +661,7 @@ module ActiveRecord row[association.foreign_type] = $1 end - fk_type = association.active_record.columns_hash[association.foreign_key].type + fk_type = association.active_record.columns_hash[fk_name].type row[fk_name] = ActiveRecord::FixtureSet.identify(value, fk_type) end when :has_many @@ -742,7 +745,7 @@ module ActiveRecord end def column_names - @column_names ||= @connection.columns(@table_name).collect { |c| c.name } + @column_names ||= @connection.columns(@table_name).collect(&:name) end def read_fixture_files(path, model_class) @@ -803,7 +806,9 @@ module ActiveRecord def find if model_class - model_class.find(fixture[model_class.primary_key]) + model_class.unscoped do + model_class.find(fixture[model_class.primary_key]) + end else raise FixtureClassNotFound, "No class attached to find." end @@ -863,38 +868,13 @@ module ActiveRecord fixture_set_names = Dir["#{fixture_path}/{**,*}/*.{yml}"] fixture_set_names.map! { |f| f[(fixture_path.to_s.size + 1)..-5] } else - fixture_set_names = fixture_set_names.flatten.map { |n| n.to_s } + fixture_set_names = fixture_set_names.flatten.map(&:to_s) end self.fixture_table_names |= fixture_set_names - require_fixture_classes(fixture_set_names, self.config) setup_fixture_accessors(fixture_set_names) end - def try_to_load_dependency(file_name) - require_dependency file_name - rescue LoadError => e - unless fixture_class_names.key?(file_name.pluralize) - if ActiveRecord::Base.logger - ActiveRecord::Base.logger.warn("Unable to load #{file_name}, make sure you added it to ActiveSupport::TestCase.set_fixture_class") - ActiveRecord::Base.logger.warn("underlying cause #{e.message} \n\n #{e.backtrace.join("\n")}") - end - end - end - - def require_fixture_classes(fixture_set_names = nil, config = ActiveRecord::Base) - if fixture_set_names - fixture_set_names = fixture_set_names.map { |n| n.to_s } - else - fixture_set_names = fixture_table_names - end - - fixture_set_names.each do |file_name| - file_name = file_name.singularize if config.pluralize_table_names - try_to_load_dependency(file_name) - end - end - def setup_fixture_accessors(fixture_set_names = nil) fixture_set_names = Array(fixture_set_names || fixture_table_names) methods = Module.new do @@ -928,7 +908,7 @@ module ActiveRecord def uses_transaction(*methods) @uses_transaction = [] unless defined?(@uses_transaction) - @uses_transaction.concat methods.map { |m| m.to_s } + @uses_transaction.concat methods.map(&:to_s) end def uses_transaction?(method) @@ -971,7 +951,7 @@ module ActiveRecord end # Instantiate fixtures for every test if requested. - instantiate_fixtures(config) if use_instantiated_fixtures + instantiate_fixtures if use_instantiated_fixtures end def teardown_fixtures @@ -998,16 +978,9 @@ module ActiveRecord Hash[fixtures.map { |f| [f.name, f] }] end - # for pre_loaded_fixtures, only require the classes once. huge speed improvement - @@required_fixture_classes = false - - def instantiate_fixtures(config) + def instantiate_fixtures if pre_loaded_fixtures raise RuntimeError, 'Load fixtures before instantiating them.' if ActiveRecord::FixtureSet.all_loaded_fixtures.empty? - unless @@required_fixture_classes - self.class.require_fixture_classes ActiveRecord::FixtureSet.all_loaded_fixtures.keys, config - @@required_fixture_classes = true - end ActiveRecord::FixtureSet.instantiate_all_loaded_fixtures(self, load_instances?) else raise RuntimeError, 'Load fixtures before instantiating them.' if @loaded_fixtures.nil? diff --git a/activerecord/lib/active_record/gem_version.rb b/activerecord/lib/active_record/gem_version.rb index 15c9dee712..a388b529c9 100644 --- a/activerecord/lib/active_record/gem_version.rb +++ b/activerecord/lib/active_record/gem_version.rb @@ -5,10 +5,10 @@ module ActiveRecord end module VERSION - MAJOR = 4 - MINOR = 2 + MAJOR = 5 + MINOR = 0 TINY = 0 - PRE = "beta1" + PRE = "alpha" STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".") end diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb index 251d682a02..b91e9ac137 100644 --- a/activerecord/lib/active_record/inheritance.rb +++ b/activerecord/lib/active_record/inheritance.rb @@ -80,12 +80,12 @@ module ActiveRecord end def symbolized_base_class - ActiveSupport::Deprecation.warn("ActiveRecord::Base.symbolized_base_class is deprecated and will be removed without replacement.") + ActiveSupport::Deprecation.warn('`ActiveRecord::Base.symbolized_base_class` is deprecated and will be removed without replacement.') @symbolized_base_class ||= base_class.to_s.to_sym end def symbolized_sti_name - ActiveSupport::Deprecation.warn("ActiveRecord::Base.symbolized_sti_name is deprecated and will be removed without replacement.") + ActiveSupport::Deprecation.warn('`ActiveRecord::Base.symbolized_sti_name` is deprecated and will be removed without replacement.') @symbolized_sti_name ||= sti_name.present? ? sti_name.to_sym : symbolized_base_class end @@ -192,7 +192,7 @@ module ActiveRecord def type_condition(table = arel_table) sti_column = table[inheritance_column] - sti_names = ([self] + descendants).map { |model| model.sti_name } + sti_names = ([self] + descendants).map(&:sti_name) sti_column.in(sti_names) end diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb index 52eeb8ae1f..9f053453bd 100644 --- a/activerecord/lib/active_record/locking/optimistic.rb +++ b/activerecord/lib/active_record/locking/optimistic.rb @@ -11,7 +11,7 @@ module ActiveRecord # # == Usage # - # Active Records support optimistic locking if the field +lock_version+ is present. Each update to the + # Active Record supports optimistic locking if the +lock_version+ field is present. Each update to the # record increments the +lock_version+ column and the locking facilities ensure that records instantiated twice # will let the last one saved raise a +StaleObjectError+ if the first was also updated. Example: # @@ -80,17 +80,15 @@ module ActiveRecord begin relation = self.class.unscoped - stmt = relation.where( - relation.table[self.class.primary_key].eq(id).and( - relation.table[lock_col].eq(self.class.quote_value(previous_lock_value, column_for_attribute(lock_col))) - ) - ).arel.compile_update( - arel_attributes_with_values_for_update(attribute_names), - self.class.primary_key + affected_rows = relation.where( + self.class.primary_key => id, + lock_col => previous_lock_value, + ).update_all( + attribute_names.map do |name| + [name, _read_attribute(name)] + end.to_h ) - affected_rows = self.class.connection.update stmt - unless affected_rows == 1 raise ActiveRecord::StaleObjectError.new(self, "update") end @@ -120,7 +118,7 @@ module ActiveRecord if locking_enabled? column_name = self.class.locking_column column = self.class.columns_hash[column_name] - substitute = self.class.connection.substitute_at(column, relation.bind_values.length) + substitute = self.class.connection.substitute_at(column) relation = relation.where(self.class.arel_table[column_name].eq(substitute)) relation.bind_values << [column, self[column_name].to_i] diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index d0d9304a36..3cac465440 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -184,8 +184,8 @@ module ActiveRecord # you wish to downgrade. Alternatively, you can also use the STEP option if you # wish to rollback last few migrations. <tt>rake db:migrate STEP=2</tt> will rollback # the latest two migrations. - # - # If any of the migrations throw an <tt>ActiveRecord::IrreversibleMigration</tt> exception, + # + # If any of the migrations throw an <tt>ActiveRecord::IrreversibleMigration</tt> exception, # that step will fail and you'll have some manual work to do. # # == Database support @@ -394,8 +394,15 @@ module ActiveRecord end def load_schema_if_pending! - if ActiveRecord::Migrator.needs_migration? - ActiveRecord::Tasks::DatabaseTasks.load_schema_current + if ActiveRecord::Migrator.needs_migration? || !ActiveRecord::Migrator.any_migrations? + # Roundrip to Rake to allow plugins to hook into database initialization. + FileUtils.cd Rails.root do + current_config = Base.connection_config + Base.clear_all_connections! + system("bin/rake db:test:prepare") + # Establish a new connection, the old database may be gone (db:test:prepare uses purge) + Base.establish_connection(current_config) + end check_pending! end end @@ -640,7 +647,7 @@ module ActiveRecord end def method_missing(method, *arguments, &block) - arg_list = arguments.map{ |a| a.inspect } * ', ' + arg_list = arguments.map(&:inspect) * ', ' say_with_time "#{method}(#{arg_list})" do unless @connection.respond_to? :revert @@ -848,6 +855,10 @@ module ActiveRecord (migrations(migrations_paths).collect(&:version) - get_all_versions(connection)).size > 0 end + def any_migrations? + migrations(migrations_paths).any? + end + def last_version last_migration.version end diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 850220babd..641512d323 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -63,7 +63,7 @@ module ActiveRecord # records, artists => artists_records # music_artists, music_records => music_artists_records def self.derive_join_table_name(first_table, second_table) # :nodoc: - [first_table.to_s, second_table.to_s].sort.join("\0").gsub(/^(.*_)(.+)\0\1(.+)/, '\1\2_\3').gsub("\0", "_") + [first_table.to_s, second_table.to_s].sort.join("\0").gsub(/^(.*_)(.+)\0\1(.+)/, '\1\2_\3').tr("\0", "_") end module ClassMethods @@ -147,7 +147,7 @@ module ActiveRecord @quoted_table_name = nil @arel_table = nil @sequence_name = nil unless defined?(@explicit_sequence_name) && @explicit_sequence_name - @relation = Relation.create(self, arel_table) + @predicate_builder = nil end # Returns a quoted version of the table name, used to construct SQL statements. @@ -231,7 +231,7 @@ module ActiveRecord end def attributes_builder # :nodoc: - @attributes_builder ||= AttributeSet::Builder.new(column_types) + @attributes_builder ||= AttributeSet::Builder.new(column_types, primary_key) end def column_types # :nodoc: @@ -247,17 +247,17 @@ module ActiveRecord # Returns a hash where the keys are column names and the values are # default values when instantiating the AR object for this table. def column_defaults - default_attributes.to_hash + _default_attributes.to_hash end - def default_attributes # :nodoc: + def _default_attributes # :nodoc: @default_attributes ||= attributes_builder.build_from_database( - columns_hash.transform_values(&:default)) + raw_default_values) end # Returns an array of column names as strings. def column_names - @column_names ||= columns.map { |column| column.name } + @column_names ||= columns.map(&:name) end # Returns an array of column objects where the primary id, all columns ending in "_id" or "_count", @@ -297,16 +297,13 @@ module ActiveRecord undefine_attribute_methods connection.schema_cache.clear_table_cache!(table_name) if table_exists? - @arel_engine = nil - @column_names = nil - @column_types = nil - @content_columns = nil - @default_attributes = nil - @dynamic_methods_hash = nil - @inheritance_column = nil unless defined?(@explicit_inheritance_column) && @explicit_inheritance_column - @relation = nil - @time_zone_column_names = nil - @cached_time_zone = nil + @arel_engine = nil + @arel_table = nil + @column_names = nil + @column_types = nil + @content_columns = nil + @default_attributes = nil + @inheritance_column = nil unless defined?(@explicit_inheritance_column) && @explicit_inheritance_column end private @@ -334,6 +331,10 @@ module ActiveRecord base.table_name end end + + def raw_default_values + columns_hash.transform_values(&:default) + end end end end diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb index 8a2a06f2ca..0f9b52f69f 100644 --- a/activerecord/lib/active_record/nested_attributes.rb +++ b/activerecord/lib/active_record/nested_attributes.rb @@ -81,6 +81,9 @@ module ActiveRecord # # Note that the model will _not_ be destroyed until the parent is saved. # + # Also note that the model will not be destroyed unless you also specify + # its id in the updated hash. + # # === One-to-many # # Consider a member that has a number of posts: diff --git a/activerecord/lib/active_record/no_touching.rb b/activerecord/lib/active_record/no_touching.rb index dbf4564ae5..edb5066fa0 100644 --- a/activerecord/lib/active_record/no_touching.rb +++ b/activerecord/lib/active_record/no_touching.rb @@ -45,7 +45,7 @@ module ActiveRecord NoTouching.applied_to?(self.class) end - def touch(*) + def touch(*) # :nodoc: super unless no_touching? end end diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 755ff2b2f1..f53c5f17ef 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -109,6 +109,10 @@ module ActiveRecord # validate: false, validations are bypassed altogether. See # ActiveRecord::Validations for more information. # + # By default, #save also sets the +updated_at+/+updated_on+ attributes to + # the current time. However, if you supply <tt>touch: false</tt>, these + # timestamps will not be updated. + # # There's a series of callbacks associated with +save+. If any of the # <tt>before_*</tt> callbacks return +false+ the action is cancelled and # +save+ returns +false+. See ActiveRecord::Callbacks for further @@ -116,21 +120,25 @@ module ActiveRecord # # Attributes marked as readonly are silently ignored if the record is # being updated. - def save(*) - create_or_update + def save(*args) + create_or_update(*args) rescue ActiveRecord::RecordInvalid false end # Saves the model. # - # If the model is new a record gets created in the database, otherwise + # If the model is new, a record gets created in the database, otherwise # the existing record gets updated. # # With <tt>save!</tt> validations always run. If any of them fail # ActiveRecord::RecordInvalid gets raised. See ActiveRecord::Validations # for more information. # + # By default, #save! also sets the +updated_at+/+updated_on+ attributes to + # the current time. However, if you supply <tt>touch: false</tt>, these + # timestamps will not be updated. + # # There's a series of callbacks associated with <tt>save!</tt>. If any of # the <tt>before_*</tt> callbacks return +false+ the action is cancelled # and <tt>save!</tt> raises ActiveRecord::RecordNotSaved. See @@ -138,8 +146,8 @@ module ActiveRecord # # Attributes marked as readonly are silently ignored if the record is # being updated. - def save!(*) - create_or_update || raise(RecordNotSaved) + def save!(*args) + create_or_update(*args) || raise(RecordNotSaved.new(nil, self)) end # Deletes the record in the database and freezes this instance to @@ -149,6 +157,8 @@ module ActiveRecord # The row is simply removed with an SQL +DELETE+ statement on the # record's primary key, and no callbacks are executed. # + # Note that this will also delete records marked as <tt>readonly?</tt>. + # # To enforce the object's +before_destroy+ and +after_destroy+ # callbacks or any <tt>:dependent</tt> association # options, use <tt>#destroy</tt>. @@ -166,7 +176,7 @@ module ActiveRecord # and <tt>destroy</tt> returns +false+. See # ActiveRecord::Callbacks for further details. def destroy - raise ReadOnlyRecord if readonly? + raise ReadOnlyRecord, "#{self.class} is marked as readonly" if readonly? destroy_associations destroy_row if persisted? @destroyed = true @@ -181,7 +191,7 @@ module ActiveRecord # and <tt>destroy!</tt> raises ActiveRecord::RecordNotDestroyed. See # ActiveRecord::Callbacks for further details. def destroy! - destroy || raise(ActiveRecord::RecordNotDestroyed) + destroy || raise(ActiveRecord::RecordNotDestroyed, self) end # Returns an instance of the specified +klass+ with the attributes of the @@ -487,7 +497,7 @@ module ActiveRecord def relation_for_destroy pk = self.class.primary_key column = self.class.columns_hash[pk] - substitute = self.class.connection.substitute_at(column, 0) + substitute = self.class.connection.substitute_at(column) relation = self.class.unscoped.where( self.class.arel_table[pk].eq(substitute)) @@ -496,9 +506,9 @@ module ActiveRecord relation end - def create_or_update - raise ReadOnlyRecord if readonly? - result = new_record? ? _create_record : _update_record + def create_or_update(*args) + raise ReadOnlyRecord, "#{self.class} is marked as readonly" if readonly? + result = new_record? ? _create_record : _update_record(*args) result != false end diff --git a/activerecord/lib/active_record/querying.rb b/activerecord/lib/active_record/querying.rb index a9ddd9141f..e8de4db3a7 100644 --- a/activerecord/lib/active_record/querying.rb +++ b/activerecord/lib/active_record/querying.rb @@ -37,8 +37,18 @@ module ActiveRecord # Post.find_by_sql ["SELECT body FROM comments WHERE author = :user_id OR approved_by = :user_id", { :user_id => user_id }] def find_by_sql(sql, binds = []) result_set = connection.select_all(sanitize_sql(sql), "#{name} Load", binds) - column_types = result_set.column_types.except(*columns_hash.keys) - result_set.map { |record| instantiate(record, column_types) } + column_types = result_set.column_types.dup + columns_hash.each_key { |k| column_types.delete k } + message_bus = ActiveSupport::Notifications.instrumenter + + payload = { + record_count: result_set.length, + class_name: name + } + + message_bus.instrument('instantiation.active_record', payload) do + result_set.map { |record| instantiate(record, column_types) } + end end # Returns the result of an SQL statement that should only include a COUNT(*) in the SELECT part. diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index a4ceacbf44..f1bdbc845c 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -36,8 +36,6 @@ module ActiveRecord config.eager_load_namespaces << ActiveRecord rake_tasks do - require "active_record/base" - namespace :db do task :load_config do ActiveRecord::Tasks::DatabaseTasks.database_configuration = Rails.application.config.database_configuration diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 458862a538..04c2be045d 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -196,7 +196,8 @@ db_namespace = namespace :db do fixture_files = if ENV['FIXTURES'] ENV['FIXTURES'].split(',') else - Pathname.glob("#{fixtures_dir}/**/*.yml").map {|f| f.basename.sub_ext('').to_s } + # The use of String#[] here is to support namespaced fixtures + Dir["#{fixtures_dir}/**/*.yml"].map {|f| f[(fixtures_dir.size + 1)..-5] } end ActiveRecord::FixtureSet.create_fixtures(fixtures_dir, fixture_files) @@ -215,7 +216,7 @@ db_namespace = namespace :db do Dir["#{base_dir}/**/*.yml"].each do |file| if data = YAML::load(ERB.new(IO.read(file)).result) - data.keys.each do |key| + data.each_key do |key| key_id = ActiveRecord::FixtureSet.identify(key) if key == label || key_id == id.to_i @@ -239,7 +240,7 @@ db_namespace = namespace :db do end desc 'Load a schema.rb file into the database' - task :load => [:environment, :load_config] do + task :load => [:load_config] do ActiveRecord::Tasks::DatabaseTasks.load_schema_current(:ruby, ENV['SCHEMA']) end @@ -304,7 +305,7 @@ db_namespace = namespace :db do end # desc "Recreate the test database from the current schema" - task :load => %w(db:test:deprecated db:test:purge) do + task :load => %w(db:test:purge) do case ActiveRecord::Base.schema_format when :ruby db_namespace["test:load_schema"].invoke @@ -314,11 +315,11 @@ db_namespace = namespace :db do end # desc "Recreate the test database from an existent schema.rb file" - task :load_schema => %w(db:test:deprecated db:test:purge) do + task :load_schema => %w(db:test:purge) do begin should_reconnect = ActiveRecord::Base.connection_pool.active_connection? ActiveRecord::Schema.verbose = false - ActiveRecord::Tasks::DatabaseTasks.load_schema_for ActiveRecord::Base.configurations['test'], :ruby, ENV['SCHEMA'] + ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations['test'], :ruby, ENV['SCHEMA'] ensure if should_reconnect ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[ActiveRecord::Tasks::DatabaseTasks.env]) @@ -327,8 +328,8 @@ db_namespace = namespace :db do end # desc "Recreate the test database from an existent structure.sql file" - task :load_structure => %w(db:test:deprecated db:test:purge) do - ActiveRecord::Tasks::DatabaseTasks.load_schema_for ActiveRecord::Base.configurations['test'], :sql, ENV['SCHEMA'] + task :load_structure => %w(db:test:purge) do + ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations['test'], :sql, ENV['SCHEMA'] end # desc "Recreate the test database from a fresh schema" @@ -348,12 +349,12 @@ db_namespace = namespace :db do task :clone_structure => %w(db:test:deprecated db:structure:dump db:test:load_structure) # desc "Empty the test database" - task :purge => %w(db:test:deprecated environment load_config) do + task :purge => %w(environment load_config) do ActiveRecord::Tasks::DatabaseTasks.purge ActiveRecord::Base.configurations['test'] end # desc 'Check for pending migrations and load the test schema' - task :prepare => %w(db:test:deprecated environment load_config) do + task :prepare => %w(environment load_config) do unless ActiveRecord::Base.configurations.blank? db_namespace['test:load'].invoke end @@ -365,7 +366,7 @@ namespace :railties do namespace :install do # desc "Copies missing migrations from Railties (e.g. engines). You can specify Railties to use with FROM=railtie1,railtie2" task :migrations => :'db:load_config' do - to_load = ENV['FROM'].blank? ? :all : ENV['FROM'].split(",").map {|n| n.strip } + to_load = ENV['FROM'].blank? ? :all : ENV['FROM'].split(",").map(&:strip) railties = {} Rails.application.migration_railties.each do |railtie| next unless to_load == :all || to_load.include?(railtie.railtie_name) diff --git a/activerecord/lib/active_record/readonly_attributes.rb b/activerecord/lib/active_record/readonly_attributes.rb index 85bbac43e4..ce78f1756d 100644 --- a/activerecord/lib/active_record/readonly_attributes.rb +++ b/activerecord/lib/active_record/readonly_attributes.rb @@ -11,7 +11,7 @@ module ActiveRecord # Attributes listed as readonly will be used to create a new record but update operations will # ignore these fields. def attr_readonly(*attributes) - self._attr_readonly = Set.new(attributes.map { |a| a.to_s }) + (self._attr_readonly || []) + self._attr_readonly = Set.new(attributes.map(&:to_s)) + (self._attr_readonly || []) end # Returns an array of all the attributes that have been specified as readonly. diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 6b5a592ee5..9849e03036 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -1,4 +1,5 @@ require 'thread' +require 'active_support/core_ext/string/filters' module ActiveRecord # = Active Record Reflection @@ -38,9 +39,9 @@ module ActiveRecord ar.aggregate_reflections = ar.aggregate_reflections.merge(name.to_s => reflection) end - # \Reflection enables interrogating of Active Record classes and objects - # about their associations and aggregations. This information can, - # for example, be used in a form builder that takes an Active Record object + # \Reflection enables the ability to examine the associations and aggregations of + # Active Record classes and objects. This information, for example, + # can be used in a form builder that takes an Active Record object # and creates input fields for all of the attributes depending on their type # and displays the associations to other objects. # @@ -62,7 +63,7 @@ module ActiveRecord # Returns a Hash of name of the reflection as the key and a AssociationReflection as the value. # - # Account.reflections # => {balance: AggregateReflection} + # Account.reflections # => {"balance" => AggregateReflection} # # @api public def reflections @@ -153,8 +154,11 @@ module ActiveRecord end def source_macro - ActiveSupport::Deprecation.warn("ActiveRecord::Base.source_macro is deprecated and " \ - "will be removed without replacement.") + ActiveSupport::Deprecation.warn(<<-MSG.squish) + ActiveRecord::Base.source_macro is deprecated and will be removed + without replacement. + MSG + macro end end @@ -273,7 +277,7 @@ module ActiveRecord def initialize(name, scope, options, active_record) super @automatic_inverse_of = nil - @type = options[:as] && "#{options[:as]}_type" + @type = options[:as] && (options[:foreign_type] || "#{options[:as]}_type") @foreign_type = options[:foreign_type] || "#{name}_type" @constructable = calculate_constructable(macro, options) @association_scope_cache = {} @@ -283,7 +287,7 @@ module ActiveRecord def association_scope_cache(conn, owner) key = conn.prepared_statements if polymorphic? - key = [key, owner.read_attribute(@foreign_type)] + key = [key, owner._read_attribute(@foreign_type)] end @association_scope_cache[key] ||= @scope_lock.synchronize { @association_scope_cache[key] ||= yield @@ -339,13 +343,14 @@ module ActiveRecord return unless scope if scope.arity > 0 - ActiveSupport::Deprecation.warn \ - "The association scope '#{name}' is instance dependent (the scope " \ - "block takes an argument). Preloading happens before the individual " \ - "instances are created. This means that there is no instance being " \ - "passed to the association scope. This will most likely result in " \ - "broken or incorrect behavior. Joining, Preloading and eager loading " \ - "of these associations is deprecated and will be removed in the future." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + The association scope '#{name}' is instance dependent (the scope + block takes an argument). Preloading happens before the individual + instances are created. This means that there is no instance being + passed to the association scope. This will most likely result in + broken or incorrect behavior. Joining, Preloading and eager loading + of these associations is deprecated and will be removed in the future. + MSG end end alias :check_eager_loadable! :check_preloadable! @@ -746,8 +751,11 @@ module ActiveRecord # The macro used by the source association def source_macro - ActiveSupport::Deprecation.warn("ActiveRecord::Base.source_macro is deprecated and " \ - "will be removed without replacement.") + ActiveSupport::Deprecation.warn(<<-MSG.squish) + ActiveRecord::Base.source_macro is deprecated and will be removed + without replacement. + MSG + source_reflection.source_macro end @@ -783,7 +791,7 @@ module ActiveRecord def source_reflection_name # :nodoc: return @source_reflection_name if @source_reflection_name - names = [name.to_s.singularize, name].collect { |n| n.to_sym }.uniq + names = [name.to_s.singularize, name].collect(&:to_sym).uniq names = names.find_all { |n| through_reflection.klass._reflect_on_association(n) } @@ -821,7 +829,11 @@ module ActiveRecord end if through_reflection.polymorphic? - raise HasManyThroughAssociationPolymorphicThroughError.new(active_record.name, self) + if has_one? + raise HasOneAssociationPolymorphicThroughError.new(active_record.name, self) + else + raise HasManyThroughAssociationPolymorphicThroughError.new(active_record.name, self) + end end if source_reflection.nil? diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index ad54d84665..cdafa6a50a 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -4,8 +4,6 @@ require 'arel/collectors/bind' module ActiveRecord # = Active Record Relation class Relation - JoinOperation = Struct.new(:relation, :join_class, :on) - MULTI_VALUE_METHODS = [:includes, :eager_load, :preload, :select, :group, :order, :joins, :where, :having, :bind, :references, :extending, :unscope] @@ -18,16 +16,17 @@ module ActiveRecord include FinderMethods, Calculations, SpawnMethods, QueryMethods, Batches, Explain, Delegation - attr_reader :table, :klass, :loaded + attr_reader :table, :klass, :loaded, :predicate_builder alias :model :klass alias :loaded? :loaded - def initialize(klass, table, values = {}) + def initialize(klass, table, predicate_builder, values = {}) @klass = klass @table = table @values = values @offsets = {} @loaded = false + @predicate_builder = predicate_builder end def initialize_copy(other) @@ -81,22 +80,26 @@ module ActiveRecord scope.unscope!(where: @klass.inheritance_column) end - um = scope.where(@klass.arel_table[@klass.primary_key].eq(id_was || id)).arel.compile_update(substitutes, @klass.primary_key) + relation = scope.where(@klass.primary_key => (id_was || id)) + bvs = binds + relation.bind_values + um = relation + .arel + .compile_update(substitutes, @klass.primary_key) @klass.connection.update( um, 'SQL', - binds) + bvs, + ) end def substitute_values(values) # :nodoc: - substitutes = values.sort_by { |arel_attr,_| arel_attr.name } - binds = substitutes.map do |arel_attr, value| + binds = values.map do |arel_attr, value| [@klass.columns_hash[arel_attr.name], value] end - substitutes.each_with_index do |tuple, i| - tuple[1] = @klass.connection.substitute_at(binds[i][0], i) + substitutes = values.each_with_index.map do |(arel_attr, _), i| + [arel_attr, @klass.connection.substitute_at(binds[i][0])] end [substitutes, binds] @@ -302,10 +305,11 @@ module ActiveRecord klass.current_scope = previous end - # Updates all records with details given if they match a set of conditions supplied, limits and order can - # also be supplied. This method constructs a single SQL UPDATE statement and sends it straight to the - # database. It does not instantiate the involved models and it does not trigger Active Record callbacks - # or validations. + # Updates all records in the current relation with details given. This method constructs a single SQL UPDATE + # statement and sends it straight to the database. It does not instantiate the involved models and it does not + # trigger Active Record callbacks or validations. Values passed to `update_all` will not go through + # ActiveRecord's type-casting behavior. It should receive only values that can be passed as-is to the SQL + # database. # # ==== Parameters # @@ -324,7 +328,7 @@ module ActiveRecord def update_all(updates) raise ArgumentError, "Empty list of attributes to change" if updates.blank? - stmt = Arel::UpdateManager.new(arel.engine) + stmt = Arel::UpdateManager.new stmt.set Arel.sql(@klass.send(:sanitize_sql_for_assignment, updates)) stmt.table(table) @@ -338,7 +342,7 @@ module ActiveRecord stmt.wheres = arel.constraints end - bvs = bind_values + arel.bind_values + bvs = arel.bind_values + bind_values @klass.connection.update stmt, 'SQL', bvs end @@ -397,7 +401,7 @@ module ActiveRecord if conditions where(conditions).destroy_all else - to_a.each {|object| object.destroy }.tap { reset } + to_a.each(&:destroy).tap { reset } end end @@ -462,7 +466,7 @@ module ActiveRecord if conditions where(conditions).delete_all else - stmt = Arel::DeleteManager.new(arel.engine) + stmt = Arel::DeleteManager.new stmt.from(table) if joins_values.any? @@ -565,7 +569,7 @@ module ActiveRecord [name, binds.fetch(name.to_s) { case where.right when Array then where.right.map(&:val) - else + when Arel::Nodes::Casted, Arel::Nodes::Quoted where.right.val end }] @@ -636,17 +640,21 @@ module ActiveRecord preload = preload_values preload += includes_values unless eager_loading? - preloader = ActiveRecord::Associations::Preloader.new + preloader = build_preloader preload.each do |associations| preloader.preload @records, associations end - @records.each { |record| record.readonly! } if readonly_value + @records.each(&:readonly!) if readonly_value @loaded = true @records end + def build_preloader + ActiveRecord::Associations::Preloader.new + end + def references_eager_loaded_tables? joined_tables = arel.join_sources.map do |join| if join.is_a?(Arel::Nodes::StringJoin) @@ -659,7 +667,7 @@ module ActiveRecord joined_tables += [table.name, table.table_alias] # always convert table names to downcase as in Oracle quoted table names are in uppercase - joined_tables = joined_tables.flatten.compact.map { |t| t.downcase }.uniq + joined_tables = joined_tables.flatten.compact.map(&:downcase).uniq (references_values - joined_tables).any? end @@ -668,7 +676,7 @@ module ActiveRecord return [] if string.blank? # always convert table names to downcase as in Oracle quoted table names are in uppercase # ignore raw_sql_ that is used by Oracle adapter as alias for limit/offset subqueries - string.scan(/([a-zA-Z_][.\w]+).?\./).flatten.map{ |s| s.downcase }.uniq - ['raw_sql_'] + string.scan(/([a-zA-Z_][.\w]+).?\./).flatten.map(&:downcase).uniq - ['raw_sql_'] end end end diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb index b069cdce7c..4f0502ae75 100644 --- a/activerecord/lib/active_record/relation/batches.rb +++ b/activerecord/lib/active_record/relation/batches.rb @@ -27,7 +27,7 @@ module ActiveRecord # # ==== Options # * <tt>:batch_size</tt> - Specifies the size of the batch. Default to 1000. - # * <tt>:start</tt> - Specifies the starting point for the batch processing. + # * <tt>:start</tt> - Specifies the primary key value to start from. # This is especially useful if you want multiple workers dealing with # the same processing queue. You can make worker 1 handle all the records # between id 0 and 10,000 and worker 2 handle from 10,000 and beyond @@ -40,8 +40,8 @@ module ActiveRecord # # NOTE: It's not possible to set the order. That is automatically set to # ascending on the primary key ("id ASC") to make the batch ordering - # work. This also means that this method only works with integer-based - # primary keys. + # work. This also means that this method only works when the primary key is + # orderable (e.g. an integer or string). # # NOTE: You can't set the limit either, that's used to control # the batch sizes. @@ -77,7 +77,7 @@ module ActiveRecord # # ==== Options # * <tt>:batch_size</tt> - Specifies the size of the batch. Default to 1000. - # * <tt>:start</tt> - Specifies the starting point for the batch processing. + # * <tt>:start</tt> - Specifies the primary key value to start from. # This is especially useful if you want multiple workers dealing with # the same processing queue. You can make worker 1 handle all the records # between id 0 and 10,000 and worker 2 handle from 10,000 and beyond @@ -90,8 +90,8 @@ module ActiveRecord # # NOTE: It's not possible to set the order. That is automatically set to # ascending on the primary key ("id ASC") to make the batch ordering - # work. This also means that this method only works with integer-based - # primary keys. + # work. This also means that this method only works when the primary key is + # orderable (e.g. an integer or string). # # NOTE: You can't set the limit either, that's used to control # the batch sizes. diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 90e99957f6..71673324eb 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -19,15 +19,15 @@ module ActiveRecord # # Person.group(:city).count # # => { 'Rome' => 5, 'Paris' => 3 } - # - # If +count+ is used with +group+ for multiple columns, it returns a Hash whose - # keys are an array containing the individual values of each column and the value + # + # If +count+ is used with +group+ for multiple columns, it returns a Hash whose + # keys are an array containing the individual values of each column and the value # of each key would be the +count+. - # + # # Article.group(:status, :category).count - # # => {["draft", "business"]=>10, ["draft", "technology"]=>4, + # # => {["draft", "business"]=>10, ["draft", "technology"]=>4, # ["published", "business"]=>0, ["published", "technology"]=>2} - # + # # If +count+ is used with +select+, it will count the selected columns: # # Person.select(:age).count @@ -177,7 +177,7 @@ module ActiveRecord relation.select_values = column_names.map { |cn| columns_hash.key?(cn) ? arel_table[cn] : cn } - result = klass.connection.select_all(relation.arel, nil, bind_values) + result = klass.connection.select_all(relation.arel, nil, relation.arel.bind_values + bind_values) result.cast_values(klass.column_types) end end @@ -254,6 +254,7 @@ module ActiveRecord select_value = operation_over_aggregate_column(column, operation, distinct) column_alias = select_value.alias + column_alias ||= @klass.connection.column_name_for_operation(operation, select_value) relation.select_values = [select_value] query_builder = relation.arel @@ -274,7 +275,7 @@ module ActiveRecord group_attrs = group_values if group_attrs.first.respond_to?(:to_sym) - association = @klass._reflect_on_association(group_attrs.first.to_sym) + association = @klass._reflect_on_association(group_attrs.first) associated = group_attrs.size == 1 && association && association.belongs_to? # only count belongs_to associations group_fields = Array(associated ? association.foreign_key : group_attrs) else @@ -316,7 +317,7 @@ module ActiveRecord relation.group_values = group relation.select_values = select_values - calculated_data = @klass.connection.select_all(relation, nil, bind_values) + calculated_data = @klass.connection.select_all(relation, nil, relation.arel.bind_values + bind_values) if association key_ids = calculated_data.collect { |row| row[group_aliases.first] } diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index b1753b27e1..088bc203b7 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -1,4 +1,5 @@ require 'active_support/deprecation' +require 'active_support/core_ext/string/filters' module ActiveRecord module FinderMethods @@ -81,12 +82,16 @@ module ActiveRecord # Post.find_by "published_at < ?", 2.weeks.ago def find_by(*args) where(*args).take + rescue RangeError + nil end # Like <tt>find_by</tt>, except that if no record is found, raises # an <tt>ActiveRecord::RecordNotFound</tt> error. def find_by!(*args) where(*args).take! + rescue RangeError + raise RecordNotFound, "Couldn't find #{@klass.name} with an out of range value" end # Gives a record (or N records if a parameter is supplied) without any implied @@ -103,7 +108,7 @@ module ActiveRecord # Same as +take+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. Note that <tt>take!</tt> accepts no arguments. def take! - take or raise RecordNotFound + take or raise RecordNotFound.new("Couldn't find #{@klass.name} with [#{arel.where_sql(@klass.arel_engine)}]") end # Find the first record (or first N records if a parameter is supplied). @@ -138,7 +143,7 @@ module ActiveRecord # Same as +first+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. Note that <tt>first!</tt> accepts no arguments. def first! - first or raise RecordNotFound + find_nth! 0 end # Find the last record (or last N records if a parameter is supplied). @@ -171,7 +176,7 @@ module ActiveRecord # Same as +last+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. Note that <tt>last!</tt> accepts no arguments. def last! - last or raise RecordNotFound + last or raise RecordNotFound.new("Couldn't find #{@klass.name} with [#{arel.where_sql(@klass.arel_engine)}]") end # Find the second record. @@ -187,7 +192,7 @@ module ActiveRecord # Same as +second+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. def second! - second or raise RecordNotFound + find_nth! 1 end # Find the third record. @@ -203,7 +208,7 @@ module ActiveRecord # Same as +third+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. def third! - third or raise RecordNotFound + find_nth! 2 end # Find the fourth record. @@ -219,7 +224,7 @@ module ActiveRecord # Same as +fourth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. def fourth! - fourth or raise RecordNotFound + find_nth! 3 end # Find the fifth record. @@ -235,7 +240,7 @@ module ActiveRecord # Same as +fifth+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. def fifth! - fifth or raise RecordNotFound + find_nth! 4 end # Find the forty-second record. Also known as accessing "the reddit". @@ -251,7 +256,7 @@ module ActiveRecord # Same as +forty_two+ but raises <tt>ActiveRecord::RecordNotFound</tt> if no record # is found. def forty_two! - forty_two or raise RecordNotFound + find_nth! 41 end # Returns +true+ if a record exists in the table that matches the +id+ or @@ -284,8 +289,10 @@ module ActiveRecord def exists?(conditions = :none) if Base === conditions conditions = conditions.id - ActiveSupport::Deprecation.warn "You are passing an instance of ActiveRecord::Base to `exists?`." \ - "Please pass the id of the object by calling `.id`" + ActiveSupport::Deprecation.warn(<<-MSG.squish) + You are passing an instance of ActiveRecord::Base to `exists?`. + Please pass the id of the object by calling `.id` + MSG end return false if !conditions @@ -316,7 +323,7 @@ module ActiveRecord # the expected number of results should be provided in the +expected_size+ # argument. def raise_record_not_found_exception!(ids, result_size, expected_size) #:nodoc: - conditions = arel.where_sql + conditions = arel.where_sql(@klass.arel_engine) conditions = " [#{conditions}]" if conditions if Array(ids).size == 1 @@ -390,7 +397,7 @@ module ActiveRecord else if relation.limit_value limited_ids = limited_ids_for(relation) - limited_ids.empty? ? relation.none! : relation.where!(table[primary_key].in(limited_ids)) + limited_ids.empty? ? relation.none! : relation.where!(primary_key => limited_ids) end relation.except(:limit, :offset) end @@ -408,7 +415,7 @@ module ActiveRecord end def using_limitable_reflections?(reflections) - reflections.none? { |r| r.collection? } + reflections.none?(&:collection?) end protected @@ -430,19 +437,20 @@ module ActiveRecord else find_some(ids) end + rescue RangeError + raise RecordNotFound, "Couldn't find #{@klass.name} with an out of range ID" end def find_one(id) if ActiveRecord::Base === id id = id.id - ActiveSupport::Deprecation.warn "You are passing an instance of ActiveRecord::Base to `find`." \ - "Please pass the id of the object by calling `.id`" + ActiveSupport::Deprecation.warn(<<-MSG.squish) + You are passing an instance of ActiveRecord::Base to `find`. + Please pass the id of the object by calling `.id` + MSG end - column = columns_hash[primary_key] - substitute = connection.substitute_at(column, bind_values.length) - relation = where(table[primary_key].eq(substitute)) - relation.bind_values += [[column, id]] + relation = where(primary_key => id) record = relation.take raise_record_not_found_exception!(id, 0, 1) unless record @@ -451,7 +459,7 @@ module ActiveRecord end def find_some(ids) - result = where(table[primary_key].in(ids)).to_a + result = where(primary_key => ids).to_a expected_size = if limit_value && ids.size > limit_value @@ -489,6 +497,10 @@ module ActiveRecord end end + def find_nth!(index) + find_nth(index, offset_index) or raise RecordNotFound.new("Couldn't find #{@klass.name} with [#{arel.where_sql(@klass.arel_engine)}]") + end + def find_nth_with_limit(offset, limit) relation = if order_values.empty? && primary_key order(arel_table[primary_key].asc) diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index ac41d0aa80..afb0b208c3 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -13,7 +13,7 @@ module ActiveRecord @hash = hash end - def merge + def merge #:nodoc: Merger.new(relation, other).merge end @@ -22,7 +22,7 @@ module ActiveRecord # build a relation to merge in rather than directly merging # the values. def other - other = Relation.create(relation.klass, relation.table) + other = Relation.create(relation.klass, relation.table, relation.predicate_builder) hash.each { |k, v| if k == :joins if Hash === v @@ -83,12 +83,12 @@ module ActiveRecord private def merge_joins - return if values[:joins].blank? + return if other.joins_values.blank? if other.klass == relation.klass - relation.joins!(*values[:joins]) + relation.joins!(*other.joins_values) else - joins_dependency, rest = values[:joins].partition do |join| + joins_dependency, rest = other.joins_values.partition do |join| case join when Hash, Symbol, Array true @@ -108,48 +108,36 @@ module ActiveRecord def merge_multi_values lhs_wheres = relation.where_values - rhs_wheres = values[:where] || [] + rhs_wheres = other.where_values lhs_binds = relation.bind_values - rhs_binds = values[:bind] || [] + rhs_binds = other.bind_values removed, kept = partition_overwrites(lhs_wheres, rhs_wheres) where_values = kept + rhs_wheres bind_values = filter_binds(lhs_binds, removed) + rhs_binds - conn = relation.klass.connection - bv_index = 0 - where_values.map! do |node| - if Arel::Nodes::Equality === node && Arel::Nodes::BindParam === node.right - substitute = conn.substitute_at(bind_values[bv_index].first, bv_index) - bv_index += 1 - Arel::Nodes::Equality.new(node.left, substitute) - else - node - end - end - relation.where_values = where_values relation.bind_values = bind_values - if values[:reordering] + if other.reordering_value # override any order specified in the original relation - relation.reorder! values[:order] - elsif values[:order] + relation.reorder! other.order_values + elsif other.order_values # merge in order_values from relation - relation.order! values[:order] + relation.order! other.order_values end - relation.extend(*values[:extending]) unless values[:extending].blank? + relation.extend(*other.extending_values) unless other.extending_values.blank? end def merge_single_values - relation.from_value = values[:from] unless relation.from_value - relation.lock_value = values[:lock] unless relation.lock_value + relation.from_value = other.from_value unless relation.from_value + relation.lock_value = other.lock_value unless relation.lock_value - unless values[:create_with].blank? - relation.create_with_value = (relation.create_with_value || {}).merge(values[:create_with]) + unless other.create_with_value.blank? + relation.create_with_value = (relation.create_with_value || {}).merge(other.create_with_value) end end diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index eff5c8f09c..567efce8ae 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -1,82 +1,44 @@ module ActiveRecord class PredicateBuilder # :nodoc: - @handlers = [] - - autoload :RelationHandler, 'active_record/relation/predicate_builder/relation_handler' - autoload :ArrayHandler, 'active_record/relation/predicate_builder/array_handler' - - def self.resolve_column_aliases(klass, hash) - hash = hash.dup - hash.keys.grep(Symbol) do |key| - if klass.attribute_alias? key - hash[klass.attribute_alias(key)] = hash.delete key - end - end - hash + require 'active_record/relation/predicate_builder/array_handler' + require 'active_record/relation/predicate_builder/association_query_handler' + require 'active_record/relation/predicate_builder/base_handler' + require 'active_record/relation/predicate_builder/basic_object_handler' + require 'active_record/relation/predicate_builder/class_handler' + require 'active_record/relation/predicate_builder/range_handler' + require 'active_record/relation/predicate_builder/relation_handler' + + delegate :resolve_column_aliases, to: :table + + def initialize(table) + @table = table + @handlers = [] + + register_handler(BasicObject, BasicObjectHandler.new(self)) + register_handler(Class, ClassHandler.new(self)) + register_handler(Base, BaseHandler.new(self)) + register_handler(Range, RangeHandler.new(self)) + register_handler(Relation, RelationHandler.new) + register_handler(Array, ArrayHandler.new(self)) + register_handler(AssociationQueryValue, AssociationQueryHandler.new(self)) end - def self.build_from_hash(klass, attributes, default_table) - queries = [] - - attributes.each do |column, value| - table = default_table - - if value.is_a?(Hash) - if value.empty? - queries << '1=0' - else - table = Arel::Table.new(column, default_table.engine) - association = klass._reflect_on_association(column.to_sym) - - value.each do |k, v| - queries.concat expand(association && association.klass, table, k, v) - end - end - else - column = column.to_s - - if column.include?('.') - table_name, column = column.split('.', 2) - table = Arel::Table.new(table_name, default_table.engine) - end - - queries.concat expand(klass, table, column, value) - end - end - - queries + def build_from_hash(attributes) + attributes = convert_dot_notation_to_hash(attributes.stringify_keys) + expand_from_hash(attributes) end - def self.expand(klass, table, column, value) - queries = [] - + def expand(column, value) # Find the foreign key when using queries such as: # Post.where(author: author) # # For polymorphic relationships, find the foreign key and type: # PriceEstimate.where(estimate_of: treasure) - if klass && reflection = klass._reflect_on_association(column.to_sym) - if reflection.polymorphic? && base_class = polymorphic_base_class_from_value(value) - queries << build(table[reflection.foreign_type], base_class) - end - - column = reflection.foreign_key + if table.associated_with?(column) + value = AssociationQueryValue.new(table.associated_table(column), value) end - queries << build(table[column], value) - queries - end - - def self.polymorphic_base_class_from_value(value) - case value - when Relation - value.klass.base_class - when Array - val = value.compact.first - val.class.base_class if val.is_a?(Base) - when Base - value.class.base_class - end + build(table.arel_attribute(column), value) end def self.references(attributes) @@ -101,26 +63,49 @@ module ActiveRecord # ) # end # ActiveRecord::PredicateBuilder.register_handler(MyCustomDateRange, handler) - def self.register_handler(klass, handler) + def register_handler(klass, handler) @handlers.unshift([klass, handler]) end - register_handler(BasicObject, ->(attribute, value) { attribute.eq(value) }) - # FIXME: I think we need to deprecate this behavior - register_handler(Class, ->(attribute, value) { attribute.eq(value.name) }) - register_handler(Base, ->(attribute, value) { attribute.eq(value.id) }) - register_handler(Range, ->(attribute, value) { attribute.in(value) }) - register_handler(Relation, RelationHandler.new) - register_handler(Array, ArrayHandler.new) - - def self.build(attribute, value) + def build(attribute, value) handler_for(value).call(attribute, value) end - private_class_method :build - def self.handler_for(object) + protected + + attr_reader :table + + def expand_from_hash(attributes) + return ["1=0"] if attributes.empty? + + attributes.flat_map do |key, value| + if value.is_a?(Hash) + builder = self.class.new(table.associated_table(key)) + builder.expand_from_hash(value) + else + expand(key, value) + end + end + end + + private + + def convert_dot_notation_to_hash(attributes) + dot_notation = attributes.keys.select { |s| s.include?(".") } + + dot_notation.each do |key| + table_name, column_name = key.split(".") + value = attributes.delete(key) + attributes[table_name] ||= {} + + attributes[table_name] = attributes[table_name].merge(column_name => value) + end + + attributes + end + + def handler_for(object) @handlers.detect { |klass, _| klass === object }.last end - private_class_method :handler_for end end diff --git a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb index 78dba8be06..4b5f5773a0 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/array_handler.rb @@ -1,30 +1,41 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord class PredicateBuilder class ArrayHandler # :nodoc: - def call(attribute, value) - return attribute.in([]) if value.empty? + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + def call(attribute, value) values = value.map { |x| x.is_a?(Base) ? x.id : x } - ranges, values = values.partition { |v| v.is_a?(Range) } nils, values = values.partition(&:nil?) + return attribute.in([]) if values.empty? && nils.empty? + + ranges, values = values.partition { |v| v.is_a?(Range) } + values_predicate = case values.length when 0 then NullPredicate - when 1 then attribute.eq(values.first) + when 1 then predicate_builder.build(attribute, values.first) else attribute.in(values) end unless nils.empty? - values_predicate = values_predicate.or(attribute.eq(nil)) + values_predicate = values_predicate.or(predicate_builder.build(attribute, nil)) end - array_predicates = ranges.map { |range| attribute.in(range) } - array_predicates << values_predicate + array_predicates = ranges.map { |range| predicate_builder.build(attribute, range) } + array_predicates.unshift(values_predicate) array_predicates.inject { |composite, predicate| composite.or(predicate) } end - module NullPredicate + protected + + attr_reader :predicate_builder + + module NullPredicate # :nodoc: def self.or(other) other end diff --git a/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb new file mode 100644 index 0000000000..aabcf20c1d --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/association_query_handler.rb @@ -0,0 +1,58 @@ +module ActiveRecord + class PredicateBuilder + class AssociationQueryHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + queries = {} + + table = value.associated_table + if value.base_class + queries[table.association_foreign_type] = value.base_class.name + end + + queries[table.association_foreign_key] = value.ids + predicate_builder.build_from_hash(queries) + end + + protected + + attr_reader :predicate_builder + end + + class AssociationQueryValue # :nodoc: + attr_reader :associated_table, :value + + def initialize(associated_table, value) + @associated_table = associated_table + @value = value + end + + def ids + value + end + + def base_class + if associated_table.polymorphic_association? + @base_class ||= polymorphic_base_class_from_value + end + end + + private + + def polymorphic_base_class_from_value + case value + when Relation + value.klass.base_class + when Array + val = value.compact.first + val.class.base_class if val.is_a?(Base) + when Base + value.class.base_class + end + end + end + end +end diff --git a/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb new file mode 100644 index 0000000000..6fa5b16f73 --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/base_handler.rb @@ -0,0 +1,17 @@ +module ActiveRecord + class PredicateBuilder + class BaseHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + predicate_builder.build(attribute, value.id) + end + + protected + + attr_reader :predicate_builder + end + end +end diff --git a/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb new file mode 100644 index 0000000000..6cec75dc0a --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/basic_object_handler.rb @@ -0,0 +1,17 @@ +module ActiveRecord + class PredicateBuilder + class BasicObjectHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + attribute.eq(value) + end + + protected + + attr_reader :predicate_builder + end + end +end diff --git a/activerecord/lib/active_record/relation/predicate_builder/class_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/class_handler.rb new file mode 100644 index 0000000000..ed313fc9d4 --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/class_handler.rb @@ -0,0 +1,27 @@ +module ActiveRecord + class PredicateBuilder + class ClassHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + print_deprecation_warning + predicate_builder.build(attribute, value.name) + end + + protected + + attr_reader :predicate_builder + + private + + def print_deprecation_warning + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Passing a class as a value in an Active Record query is deprecated and + will be removed. Pass a string instead. + MSG + end + end + end +end diff --git a/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb new file mode 100644 index 0000000000..1b3849e3ad --- /dev/null +++ b/activerecord/lib/active_record/relation/predicate_builder/range_handler.rb @@ -0,0 +1,17 @@ +module ActiveRecord + class PredicateBuilder + class RangeHandler # :nodoc: + def initialize(predicate_builder) + @predicate_builder = predicate_builder + end + + def call(attribute, value) + attribute.between(value) + end + + protected + + attr_reader :predicate_builder + end + end +end diff --git a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb index 618fa3cdd9..063150958a 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb @@ -6,7 +6,7 @@ module ActiveRecord value = value.select(value.klass.arel_table[value.klass.primary_key]) end - attribute.in(value.arel.ast) + attribute.in(value.arel) end end end diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index e6a088d07e..ef380abfe8 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -1,4 +1,5 @@ require 'active_support/core_ext/array/wrap' +require 'active_support/core_ext/string/filters' require 'active_model/forbidden_attributes_protection' module ActiveRecord @@ -94,8 +95,10 @@ module ActiveRecord def check_cached_relation # :nodoc: if defined?(@arel) && @arel @arel = nil - ActiveSupport::Deprecation.warn "Modifying already cached Relation. The " \ - "cache will be reset. Use a cloned Relation to prevent this warning." + ActiveSupport::Deprecation.warn(<<-MSG.squish) + Modifying already cached Relation. The cache will be reset. Use a + cloned Relation to prevent this warning. + MSG end end @@ -424,19 +427,17 @@ module ActiveRecord # => SELECT "users".* FROM "users" LEFT JOIN bookmarks ON bookmarks.bookmarkable_type = 'Post' AND bookmarks.user_id = users.id def joins(*args) check_if_method_has_arguments!(:joins, args) - - args.compact! - args.flatten! - spawn.joins!(*args) end def joins!(*args) # :nodoc: + args.compact! + args.flatten! self.joins_values += args self end - def bind(value) + def bind(value) # :nodoc: spawn.bind!(value) end @@ -687,11 +688,11 @@ module ActiveRecord # end # def none - extending(NullRelation) + where("1=0").extending!(NullRelation) end def none! # :nodoc: - extending!(NullRelation) + where!("1=0").extending!(NullRelation) end # Sets readonly attributes for the returned relation. If value is @@ -857,7 +858,7 @@ module ActiveRecord private def build_arel - arel = Arel::SelectManager.new(table.engine, table) + arel = Arel::SelectManager.new(table) build_joins(arel, joins_values.flatten) unless joins_values.empty? @@ -878,13 +879,6 @@ module ActiveRecord arel.from(build_from) if from_value arel.lock(lock_value) if lock_value - # Reorder bind indexes if joins produced bind values - bvs = arel.bind_values + bind_values - arel.ast.grep(Arel::Nodes::BindParam).each_with_index do |bp, i| - column = bvs[i].first - bp.replace connection.substitute_at(column, i) - end - arel end @@ -913,9 +907,9 @@ module ActiveRecord where_values.reject! do |rel| case rel - when Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual + when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThanOrEqual subrelation = (rel.left.kind_of?(Arel::Attributes::Attribute) ? rel.left : rel.right) - subrelation.name == target_value + subrelation.name.to_s == target_value end end @@ -953,22 +947,21 @@ module ActiveRecord when String, Array [@klass.send(:sanitize_sql, other.empty? ? opts : ([opts] + other))] when Hash - opts = PredicateBuilder.resolve_column_aliases(klass, opts) + opts = predicate_builder.resolve_column_aliases(opts) - bv_len = bind_values.length - tmp_opts, bind_values = create_binds(opts, bv_len) + tmp_opts, bind_values = create_binds(opts) self.bind_values += bind_values attributes = @klass.send(:expand_hash_conditions_for_aggregates, tmp_opts) add_relations_to_bind_values(attributes) - PredicateBuilder.build_from_hash(klass, attributes, table) + predicate_builder.build_from_hash(attributes) else [opts] end end - def create_binds(opts, idx) + def create_binds(opts) bindable, non_binds = opts.partition do |column, value| case value when String, Integer, ActiveRecord::StatementCache::Substitute @@ -978,12 +971,23 @@ module ActiveRecord end end + association_binds, non_binds = non_binds.partition do |column, value| + value.is_a?(Hash) && association_for_table(column) + end + new_opts = {} binds = [] - bindable.each_with_index do |(column,value), index| + bindable.each do |(column,value)| binds.push [@klass.columns_hash[column.to_s], value] - new_opts[column] = connection.substitute_at(column, index + idx) + new_opts[column] = connection.substitute_at(column) + end + + association_binds.each do |(column, value)| + association_relation = association_for_table(column).klass.send(:relation) + association_new_opts, association_bind = association_relation.send(:create_binds, value) + new_opts[column] = association_new_opts + binds += association_bind end non_binds.each { |column,value| new_opts[column] = value } @@ -991,6 +995,12 @@ module ActiveRecord [new_opts, binds] end + def association_for_table(table_name) + table_name = table_name.to_s + @klass._reflect_on_association(table_name) || + @klass._reflect_on_association(table_name.singularize) + end + def build_from opts, name = from_value case opts @@ -1047,8 +1057,13 @@ module ActiveRecord def build_select(arel, selects) if !selects.empty? expanded_select = selects.map do |field| - columns_hash.key?(field.to_s) ? arel_table[field] : field + if (Symbol === field || String === field) && columns_hash.key?(field.to_s) + arel_table[field] + else + field + end end + arel.project(*expanded_select) else arel.project(@klass.arel_table[Arel.star]) diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb index 57d66bce4b..01bddea6c9 100644 --- a/activerecord/lib/active_record/relation/spawn_methods.rb +++ b/activerecord/lib/active_record/relation/spawn_methods.rb @@ -67,7 +67,7 @@ module ActiveRecord private def relation_with(values) # :nodoc: - result = Relation.create(klass, table, values) + result = Relation.create(klass, table, predicate_builder, values) result.extend(*extending_values) if extending_values.any? result end diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb index 8405fdaeb9..3a3e65ef32 100644 --- a/activerecord/lib/active_record/result.rb +++ b/activerecord/lib/active_record/result.rb @@ -42,6 +42,10 @@ module ActiveRecord @column_types = column_types end + def length + @rows.length + end + def each if block_given? hash_rows.each { |row| yield row } diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index ff70cbed0f..cfe99072ca 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -87,11 +87,15 @@ module ActiveRecord # { address: Address.new("123 abc st.", "chicago") } # # => "address_street='123 abc st.' and address_city='chicago'" def sanitize_sql_hash_for_conditions(attrs, default_table_name = self.table_name) - attrs = PredicateBuilder.resolve_column_aliases self, attrs + table = Arel::Table.new(table_name).alias(default_table_name) + predicate_builder = PredicateBuilder.new(TableMetadata.new(self, table)) + ActiveSupport::Deprecation.warn(<<-EOWARN) +sanitize_sql_hash_for_conditions is deprecated, and will be removed in Rails 5.0 + EOWARN + attrs = predicate_builder.resolve_column_aliases(attrs) attrs = expand_hash_conditions_for_aggregates(attrs) - table = Arel::Table.new(table_name, arel_engine).alias(default_table_name) - PredicateBuilder.build_from_hash(self, attrs, table).map { |b| + predicate_builder.build_from_hash(attrs).map { |b| connection.visitor.compile b }.join(' AND ') end @@ -134,7 +138,7 @@ module ActiveRecord raise_if_bind_arity_mismatch(statement, statement.count('?'), values.size) bound = values.dup c = connection - statement.gsub('?') do + statement.gsub(/\?/) do replace_bind_variable(bound.shift, c) end end diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index fae6427ea1..2a570e1323 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -44,7 +44,6 @@ module ActiveRecord def initialize(connection, options = {}) @connection = connection - @types = @connection.native_database_types @version = Migrator::current_version rescue nil @options = options end @@ -100,7 +99,7 @@ HEADER # dump foreign keys at the end to make sure all dependent tables exist. if @connection.supports_foreign_keys? sorted_tables.each do |tbl| - foreign_keys(tbl, stream) + foreign_keys(tbl, stream) unless ignored?(tbl) end end end @@ -111,33 +110,30 @@ HEADER tbl = StringIO.new # first dump primary key column - if @connection.respond_to?(:pk_and_sequence_for) - pk, _ = @connection.pk_and_sequence_for(table) - end - if !pk && @connection.respond_to?(:primary_key) - pk = @connection.primary_key(table) - end + pk = @connection.primary_key(table) tbl.print " create_table #{remove_prefix_and_suffix(table).inspect}" pkcol = columns.detect { |c| c.name == pk } if pkcol if pk != 'id' tbl.print %Q(, primary_key: "#{pk}") + elsif pkcol.sql_type == 'bigint' + tbl.print ", id: :bigserial" elsif pkcol.sql_type == 'uuid' tbl.print ", id: :uuid" - tbl.print %Q(, default: "#{pkcol.default_function}") if pkcol.default_function + tbl.print %Q(, default: #{pkcol.default_function.inspect}) end else tbl.print ", id: false" end - tbl.print ", force: true" + tbl.print ", force: :cascade" tbl.puts " do |t|" # then dump all non-primary key columns column_specs = columns.map do |column| raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" unless @connection.valid_type?(column.type) next if column.name == pk - @connection.column_spec(column, @types) + @connection.column_spec(column) end.compact # find all migration keys used in this table @@ -188,25 +184,22 @@ HEADER if (indexes = @connection.indexes(table)).any? add_index_statements = indexes.map do |index| statement_parts = [ - ('add_index ' + remove_prefix_and_suffix(index.table).inspect), + "add_index #{remove_prefix_and_suffix(index.table).inspect}", index.columns.inspect, - ('name: ' + index.name.inspect), + "name: #{index.name.inspect}", ] statement_parts << 'unique: true' if index.unique index_lengths = (index.lengths || []).compact - statement_parts << ('length: ' + Hash[index.columns.zip(index.lengths)].inspect) unless index_lengths.empty? - - index_orders = (index.orders || {}) - statement_parts << ('order: ' + index.orders.inspect) unless index_orders.empty? - - statement_parts << ('where: ' + index.where.inspect) if index.where + statement_parts << "length: #{Hash[index.columns.zip(index.lengths)].inspect}" if index_lengths.any? - statement_parts << ('using: ' + index.using.inspect) if index.using + index_orders = index.orders || {} + statement_parts << "order: #{index.orders.inspect}" if index_orders.any? + statement_parts << "where: #{index.where.inspect}" if index.where + statement_parts << "using: #{index.using.inspect}" if index.using + statement_parts << "type: #{index.type.inspect}" if index.type - statement_parts << ('type: ' + index.type.inspect) if index.type - - ' ' + statement_parts.join(', ') + " #{statement_parts.join(', ')}" end stream.puts add_index_statements.sort.join("\n") @@ -218,26 +211,26 @@ HEADER if (foreign_keys = @connection.foreign_keys(table)).any? add_foreign_key_statements = foreign_keys.map do |foreign_key| parts = [ - 'add_foreign_key ' + remove_prefix_and_suffix(foreign_key.from_table).inspect, - remove_prefix_and_suffix(foreign_key.to_table).inspect, - ] + "add_foreign_key #{remove_prefix_and_suffix(foreign_key.from_table).inspect}", + remove_prefix_and_suffix(foreign_key.to_table).inspect, + ] if foreign_key.column != @connection.foreign_key_column_for(foreign_key.to_table) - parts << ('column: ' + foreign_key.column.inspect) + parts << "column: #{foreign_key.column.inspect}" end if foreign_key.custom_primary_key? - parts << ('primary_key: ' + foreign_key.primary_key.inspect) + parts << "primary_key: #{foreign_key.primary_key.inspect}" end if foreign_key.name !~ /^fk_rails_[0-9a-f]{10}$/ - parts << ('name: ' + foreign_key.name.inspect) + parts << "name: #{foreign_key.name.inspect}" end - parts << ('on_update: ' + foreign_key.on_update.inspect) if foreign_key.on_update - parts << ('on_delete: ' + foreign_key.on_delete.inspect) if foreign_key.on_delete + parts << "on_update: #{foreign_key.on_update.inspect}" if foreign_key.on_update + parts << "on_delete: #{foreign_key.on_delete.inspect}" if foreign_key.on_delete - ' ' + parts.join(', ') + " #{parts.join(', ')}" end stream.puts add_foreign_key_statements.sort.join("\n") @@ -250,12 +243,7 @@ HEADER def ignored?(table_name) ['schema_migrations', ignore_tables].flatten.any? do |ignored| - case ignored - when String; remove_prefix_and_suffix(table_name) == ignored - when Regexp; remove_prefix_and_suffix(table_name) =~ ignored - else - raise StandardError, 'ActiveRecord::SchemaDumper.ignore_tables accepts an array of String and / or Regexp values.' - end + ignored === remove_prefix_and_suffix(table_name) end end end diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb index 49cadb66d0..35420e6551 100644 --- a/activerecord/lib/active_record/scoping/named.rb +++ b/activerecord/lib/active_record/scoping/named.rb @@ -139,6 +139,10 @@ module ActiveRecord # Article.published.featured.latest_article # Article.featured.titles def scope(name, body, &block) + unless body.respond_to?(:call) + raise ArgumentError, 'The scope body needs to be callable.' + end + if dangerous_class_method?(name) raise ArgumentError, "You tried to define a scope named \"#{name}\" " \ "on the model \"#{self.name}\", but Active Record already defined " \ diff --git a/activerecord/lib/active_record/serialization.rb b/activerecord/lib/active_record/serialization.rb index bd9079b596..48c12dcf9f 100644 --- a/activerecord/lib/active_record/serialization.rb +++ b/activerecord/lib/active_record/serialization.rb @@ -11,7 +11,7 @@ module ActiveRecord #:nodoc: def serializable_hash(options = nil) options = options.try(:clone) || {} - options[:except] = Array(options[:except]).map { |n| n.to_s } + options[:except] = Array(options[:except]).map(&:to_s) options[:except] |= Array(self.class.inheritance_column) super(options) diff --git a/activerecord/lib/active_record/statement_cache.rb b/activerecord/lib/active_record/statement_cache.rb index aece446384..192a19f05d 100644 --- a/activerecord/lib/active_record/statement_cache.rb +++ b/activerecord/lib/active_record/statement_cache.rb @@ -1,22 +1,33 @@ module ActiveRecord # Statement cache is used to cache a single statement in order to avoid creating the AST again. - # Initializing the cache is done by passing the statement in the initialization block: + # Initializing the cache is done by passing the statement in the create block: # - # cache = ActiveRecord::StatementCache.new do - # Book.where(name: "my book").limit(100) + # cache = StatementCache.create(Book.connection) do |params| + # Book.where(name: "my book").where("author_id > 3") # end # # The cached statement is executed by using the +execute+ method: # - # cache.execute + # cache.execute([], Book, Book.connection) # # The relation returned by the block is cached, and for each +execute+ call the cached relation gets duped. # Database is queried when +to_a+ is called on the relation. - class StatementCache - class Substitute; end + # + # If you want to cache the statement without the values you can use the +bind+ method of the + # block parameter. + # + # cache = StatementCache.create(Book.connection) do |params| + # Book.where(name: params.bind) + # end + # + # And pass the bind values as the first argument of +execute+ call. + # + # cache.execute(["my book"], Book, Book.connection) + class StatementCache # :nodoc: + class Substitute; end # :nodoc: - class Query + class Query # :nodoc: def initialize(sql) @sql = sql end @@ -26,7 +37,7 @@ module ActiveRecord end end - class PartialQuery < Query + class PartialQuery < Query # :nodoc: def initialize values @values = values @indexes = values.each_with_index.find_all { |thing,i| @@ -51,11 +62,11 @@ module ActiveRecord PartialQuery.new collected end - class Params + class Params # :nodoc: def bind; Substitute.new; end end - class BindMap + class BindMap # :nodoc: def initialize(bind_values) @indexes = [] @bind_values = bind_values @@ -68,7 +79,7 @@ module ActiveRecord end def bind(values) - bvs = @bind_values.map { |pair| pair.dup } + bvs = @bind_values.map(&:dup) @indexes.each_with_index { |offset,i| bvs[offset][1] = values[i] } bvs end diff --git a/activerecord/lib/active_record/store.rb b/activerecord/lib/active_record/store.rb index 3c291f28e3..919bc58ba5 100644 --- a/activerecord/lib/active_record/store.rb +++ b/activerecord/lib/active_record/store.rb @@ -15,11 +15,15 @@ module ActiveRecord # You can set custom coder to encode/decode your serialized attributes to/from different formats. # JSON, YAML, Marshal are supported out of the box. Generally it can be any wrapper that provides +load+ and +dump+. # - # NOTE - If you are using PostgreSQL specific columns like +hstore+ or +json+ there is no need for + # NOTE: If you are using PostgreSQL specific columns like +hstore+ or +json+ there is no need for # the serialization provided by +store+. Simply use +store_accessor+ instead to generate # the accessor methods. Be aware that these columns use a string keyed hash and do not allow access # using a symbol. # + # NOTE: The default validations with the exception of +uniqueness+ will work. + # For example, if you want to check for +uniqueness+ with +hstore+ you will + # need to use a custom validation to handle it. + # # Examples: # # class User < ActiveRecord::Base diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb new file mode 100644 index 0000000000..11e33e8dfe --- /dev/null +++ b/activerecord/lib/active_record/table_metadata.rb @@ -0,0 +1,53 @@ +module ActiveRecord + class TableMetadata # :nodoc: + delegate :foreign_type, :foreign_key, to: :association, prefix: true + + def initialize(klass, arel_table, association = nil) + @klass = klass + @arel_table = arel_table + @association = association + end + + def resolve_column_aliases(hash) + hash = hash.dup + hash.keys.grep(Symbol) do |key| + if klass.attribute_alias? key + hash[klass.attribute_alias(key)] = hash.delete key + end + end + hash + end + + def arel_attribute(column_name) + arel_table[column_name] + end + + def associated_with?(association_name) + klass && klass._reflect_on_association(association_name) + end + + def associated_table(table_name) + return self if table_name == arel_table.name + + association = klass._reflect_on_association(table_name) + if association && !association.polymorphic? + association_klass = association.klass + arel_table = association_klass.arel_table + else + type_caster = TypeCaster::Connection.new(klass.connection, table_name) + association_klass = nil + arel_table = Arel::Table.new(table_name, type_caster: type_caster) + end + + TableMetadata.new(association_klass, arel_table, association) + end + + def polymorphic_association? + association && association.polymorphic? + end + + protected + + attr_reader :klass, :arel_table, :association + end +end diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index f9b54139d5..69aceb66b1 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/string/filters' + module ActiveRecord module Tasks # :nodoc: class DatabaseAlreadyExists < StandardError; end # :nodoc: @@ -186,37 +188,48 @@ module ActiveRecord class_for_adapter(configuration['adapter']).new(*arguments).structure_load(filename) end - def load_schema(format = ActiveRecord::Base.schema_format, file = nil) - ActiveSupport::Deprecation.warn \ - "This method will act on a specific connection in the future. " \ - "To act on the current connection, use `load_schema_current` instead." - - load_schema_current(format, file) - end + def load_schema(configuration, format = ActiveRecord::Base.schema_format, file = nil) # :nodoc: + file ||= schema_file(format) - # This method is the successor of +load_schema+. We should rename it - # after +load_schema+ went through a deprecation cycle. (Rails > 4.2) - def load_schema_for(configuration, format = ActiveRecord::Base.schema_format, file = nil) # :nodoc: case format when :ruby - file ||= File.join(db_dir, "schema.rb") check_schema_file(file) - purge(configuration) ActiveRecord::Base.establish_connection(configuration) load(file) when :sql - file ||= File.join(db_dir, "structure.sql") check_schema_file(file) - purge(configuration) structure_load(configuration, file) else raise ArgumentError, "unknown format #{format.inspect}" end end + def load_schema_for(*args) + ActiveSupport::Deprecation.warn(<<-MSG.squish) + This method was renamed to `#load_schema` and will be removed in the future. + Use `#load_schema` instead. + MSG + load_schema(*args) + end + + def schema_file(format = ActiveSupport::Base.schema_format) + case format + when :ruby + File.join(db_dir, "schema.rb") + when :sql + File.join(db_dir, "structure.sql") + end + end + + def load_schema_current_if_exists(format = ActiveRecord::Base.schema_format, file = nil, environment = env) + if File.exist?(file || schema_file(format)) + load_schema_current(format, file, environment) + end + end + def load_schema_current(format = ActiveRecord::Base.schema_format, file = nil, environment = env) each_current_configuration(environment) { |configuration| - load_schema_for configuration, format, file + load_schema configuration, format, file } ActiveRecord::Base.establish_connection(environment.to_sym) end diff --git a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb index d890196f47..eafbb2c249 100644 --- a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb @@ -31,6 +31,7 @@ module ActiveRecord end establish_connection configuration else + $stderr.puts error.inspect $stderr.puts "Couldn't create database for #{configuration.inspect}, #{creation_options.inspect}" $stderr.puts "(If you set the charset manually, make sure you have a matching collation)" if configuration['encoding'] end diff --git a/activerecord/lib/active_record/timestamp.rb b/activerecord/lib/active_record/timestamp.rb index 936a18d99a..20e4235788 100644 --- a/activerecord/lib/active_record/timestamp.rb +++ b/activerecord/lib/active_record/timestamp.rb @@ -57,8 +57,8 @@ module ActiveRecord super end - def _update_record(*args) - if should_record_timestamps? + def _update_record(*args, touch: true, **options) + if touch && should_record_timestamps? current_time = current_time_from_proper_timezone timestamp_attributes_for_update_in_model.each do |column| @@ -67,7 +67,7 @@ module ActiveRecord write_attribute(column, current_time) end end - super + super(*args) end def should_record_timestamps? diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 45bc10b9b0..de701edca0 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -2,7 +2,9 @@ module ActiveRecord # See ActiveRecord::Transactions::ClassMethods for documentation. module Transactions extend ActiveSupport::Concern + #:nodoc: ACTIONS = [:create, :destroy, :update] + #:nodoc: CALLBACK_WARN_MESSAGE = "Currently, Active Record suppresses errors raised " \ "within `after_rollback`/`after_commit` callbacks and only print them to " \ "the logs. In the next version, these errors will no longer be suppressed. " \ @@ -11,7 +13,7 @@ module ActiveRecord "\n" \ "You can opt into the new behavior and remove this warning by setting:\n" \ "\n" \ - " config.active_record.raise_in_transactional_callbacks = true" + " config.active_record.raise_in_transactional_callbacks = true\n\n" included do define_callbacks :commit, :rollback, @@ -265,7 +267,7 @@ module ActiveRecord def assert_valid_transaction_action(actions) if (actions - ACTIONS).any? - raise ArgumentError, ":on conditions for after_commit and after_rollback callbacks have to be one of #{ACTIONS.join(",")}" + raise ArgumentError, ":on conditions for after_commit and after_rollback callbacks have to be one of #{ACTIONS}" end end end @@ -309,7 +311,7 @@ module ActiveRecord # Ensure that it is not called if the object was never persisted (failed create), # but call it after the commit of a destroyed object. def committed!(should_run_callbacks = true) #:nodoc: - run_callbacks :commit if should_run_callbacks && destroyed? || persisted? + _run_commit_callbacks if should_run_callbacks && destroyed? || persisted? ensure force_clear_transaction_record_state end @@ -317,7 +319,7 @@ module ActiveRecord # Call the +after_rollback+ callbacks. The +force_restore_state+ argument indicates if the record # state should be rolled back to the beginning or just to the last savepoint. def rolledback!(force_restore_state = false, should_run_callbacks = true) #:nodoc: - run_callbacks :rollback if should_run_callbacks + _run_rollback_callbacks if should_run_callbacks ensure restore_transaction_record_state(force_restore_state) clear_transaction_record_state @@ -358,14 +360,12 @@ module ActiveRecord # Save the new record state and id of a record so it can be restored later if a transaction fails. def remember_transaction_record_state #:nodoc: @_start_transaction_state[:id] = id - unless @_start_transaction_state.include?(:new_record) - @_start_transaction_state[:new_record] = @new_record - end - unless @_start_transaction_state.include?(:destroyed) - @_start_transaction_state[:destroyed] = @destroyed - end + @_start_transaction_state.reverse_merge!( + new_record: @new_record, + destroyed: @destroyed, + frozen?: frozen?, + ) @_start_transaction_state[:level] = (@_start_transaction_state[:level] || 0) + 1 - @_start_transaction_state[:frozen?] = frozen? end # Clear the new record state and id of a record. diff --git a/activerecord/lib/active_record/type.rb b/activerecord/lib/active_record/type.rb index f1384e0bb2..250e8d5b23 100644 --- a/activerecord/lib/active_record/type.rb +++ b/activerecord/lib/active_record/type.rb @@ -1,8 +1,10 @@ +require 'active_record/type/decorator' require 'active_record/type/mutable' require 'active_record/type/numeric' require 'active_record/type/time_value' require 'active_record/type/value' +require 'active_record/type/big_integer' require 'active_record/type/binary' require 'active_record/type/boolean' require 'active_record/type/date' @@ -15,6 +17,7 @@ require 'active_record/type/serialized' require 'active_record/type/string' require 'active_record/type/text' require 'active_record/type/time' +require 'active_record/type/unsigned_integer' require 'active_record/type/type_map' require 'active_record/type/hash_lookup_type_map' diff --git a/activerecord/lib/active_record/type/big_integer.rb b/activerecord/lib/active_record/type/big_integer.rb new file mode 100644 index 0000000000..0c72d8914f --- /dev/null +++ b/activerecord/lib/active_record/type/big_integer.rb @@ -0,0 +1,13 @@ +require 'active_record/type/integer' + +module ActiveRecord + module Type + class BigInteger < Integer # :nodoc: + private + + def max_value + ::Float::INFINITY + end + end + end +end diff --git a/activerecord/lib/active_record/type/boolean.rb b/activerecord/lib/active_record/type/boolean.rb index 06dd17ed28..978d16d524 100644 --- a/activerecord/lib/active_record/type/boolean.rb +++ b/activerecord/lib/active_record/type/boolean.rb @@ -10,8 +10,19 @@ module ActiveRecord def cast_value(value) if value == '' nil + elsif ConnectionAdapters::Column::TRUE_VALUES.include?(value) + true else - ConnectionAdapters::Column::TRUE_VALUES.include?(value) + if !ConnectionAdapters::Column::FALSE_VALUES.include?(value) + ActiveSupport::Deprecation.warn(<<-MSG.squish) + You attempted to assign a value which is not explicitly `true` or `false` + to a boolean column. Currently this value casts to `false`. This will + change to match Ruby's semantics, and will cast to `true` in Rails 5. + If you would like to maintain the current behavior, you should + explicitly handle the values you would like cast to `false`. + MSG + end + false end end end diff --git a/activerecord/lib/active_record/type/decimal.rb b/activerecord/lib/active_record/type/decimal.rb index d10778eeb6..7b2bee2c42 100644 --- a/activerecord/lib/active_record/type/decimal.rb +++ b/activerecord/lib/active_record/type/decimal.rb @@ -16,7 +16,7 @@ module ActiveRecord def cast_value(value) case value when ::Float - BigDecimal(value, float_precision) + convert_float_to_big_decimal(value) when ::Numeric, ::String BigDecimal(value, precision.to_i) else @@ -28,6 +28,14 @@ module ActiveRecord end end + def convert_float_to_big_decimal(value) + if precision + BigDecimal(value, float_precision) + else + value.to_d + end + end + def float_precision if precision.to_i > ::Float::DIG + 1 ::Float::DIG + 1 diff --git a/activerecord/lib/active_record/type/decimal_without_scale.rb b/activerecord/lib/active_record/type/decimal_without_scale.rb index cabdcecdd7..ff5559e300 100644 --- a/activerecord/lib/active_record/type/decimal_without_scale.rb +++ b/activerecord/lib/active_record/type/decimal_without_scale.rb @@ -1,8 +1,8 @@ -require 'active_record/type/integer' +require 'active_record/type/big_integer' module ActiveRecord module Type - class DecimalWithoutScale < Integer # :nodoc: + class DecimalWithoutScale < BigInteger # :nodoc: def type :decimal end diff --git a/activerecord/lib/active_record/type/decorator.rb b/activerecord/lib/active_record/type/decorator.rb new file mode 100644 index 0000000000..9fce38ea44 --- /dev/null +++ b/activerecord/lib/active_record/type/decorator.rb @@ -0,0 +1,14 @@ +module ActiveRecord + module Type + module Decorator # :nodoc: + def init_with(coder) + @subtype = coder['subtype'] + __setobj__(@subtype) + end + + def encode_with(coder) + coder['subtype'] = __getobj__ + end + end + end +end diff --git a/activerecord/lib/active_record/type/hash_lookup_type_map.rb b/activerecord/lib/active_record/type/hash_lookup_type_map.rb index bf92680268..82d9327fc0 100644 --- a/activerecord/lib/active_record/type/hash_lookup_type_map.rb +++ b/activerecord/lib/active_record/type/hash_lookup_type_map.rb @@ -3,16 +3,14 @@ module ActiveRecord class HashLookupTypeMap < TypeMap # :nodoc: delegate :key?, to: :@mapping - def lookup(type, *args) - @mapping.fetch(type, proc { default_value }).call(type, *args) + def alias_type(type, alias_type) + register_type(type) { |_, *args| lookup(alias_type, *args) } end - def fetch(type, *args, &block) - @mapping.fetch(type, block).call(type, *args) - end + private - def alias_type(type, alias_type) - register_type(type) { |_, *args| lookup(alias_type, *args) } + def perform_fetch(type, *args, &block) + @mapping.fetch(type, block).call(type, *args) end end end diff --git a/activerecord/lib/active_record/type/integer.rb b/activerecord/lib/active_record/type/integer.rb index 08477d1303..fc260a081a 100644 --- a/activerecord/lib/active_record/type/integer.rb +++ b/activerecord/lib/active_record/type/integer.rb @@ -3,21 +3,53 @@ module ActiveRecord class Integer < Value # :nodoc: include Numeric + def initialize(*) + super + @range = min_value...max_value + end + def type :integer end alias type_cast_for_database type_cast + def type_cast_from_database(value) + return if value.nil? + value.to_i + end + + protected + + attr_reader :range + private def cast_value(value) case value when true then 1 when false then 0 - else value.to_i rescue nil + else + result = value.to_i rescue nil + ensure_in_range(result) if result + result end end + + def ensure_in_range(value) + unless range.cover?(value) + raise RangeError, "#{value} is out of range for #{self.class} with limit #{limit || 4}" + end + end + + def max_value + limit = self.limit || 4 + 1 << (limit * 8 - 1) # 8 bits per byte with one bit for sign + end + + def min_value + -max_value + end end end end diff --git a/activerecord/lib/active_record/type/numeric.rb b/activerecord/lib/active_record/type/numeric.rb index fa43266504..674f996f38 100644 --- a/activerecord/lib/active_record/type/numeric.rb +++ b/activerecord/lib/active_record/type/numeric.rb @@ -29,7 +29,7 @@ module ActiveRecord # 'wibble'.to_i will give zero, we want to make sure # that we aren't marking int zero to string zero as # changed. - value.to_s !~ /\A\d+\.?\d*\z/ + value.to_s !~ /\A-?\d+\.?\d*\z/ end end end diff --git a/activerecord/lib/active_record/type/serialized.rb b/activerecord/lib/active_record/type/serialized.rb index 5b512433b0..3cac03464e 100644 --- a/activerecord/lib/active_record/type/serialized.rb +++ b/activerecord/lib/active_record/type/serialized.rb @@ -1,7 +1,8 @@ module ActiveRecord module Type - class Serialized < SimpleDelegator # :nodoc: + class Serialized < DelegateClass(Type::Value) # :nodoc: include Mutable + include Decorator attr_reader :subtype, :coder @@ -28,7 +29,7 @@ module ActiveRecord def changed_in_place?(raw_old_value, value) return false if value.nil? - subtype.changed_in_place?(raw_old_value, coder.dump(value)) + subtype.changed_in_place?(raw_old_value, type_cast_for_database(value)) end def accessor @@ -36,14 +37,13 @@ module ActiveRecord end def init_with(coder) - @subtype = coder['subtype'] @coder = coder['coder'] - __setobj__(@subtype) + super end def encode_with(coder) - coder['subtype'] = @subtype coder['coder'] = @coder + super end private diff --git a/activerecord/lib/active_record/type/string.rb b/activerecord/lib/active_record/type/string.rb index 150defb106..cf95e25be0 100644 --- a/activerecord/lib/active_record/type/string.rb +++ b/activerecord/lib/active_record/type/string.rb @@ -15,18 +15,22 @@ module ActiveRecord case value when ::Numeric, ActiveSupport::Duration then value.to_s when ::String then ::String.new(value) - when true then "1" - when false then "0" + when true then "t" + when false then "f" else super end end + def text? + true + end + private def cast_value(value) case value - when true then "1" - when false then "0" + when true then "t" + when false then "f" # String.new is slightly faster than dup else ::String.new(value.to_s) end diff --git a/activerecord/lib/active_record/type/type_map.rb b/activerecord/lib/active_record/type/type_map.rb index 88c5f9c497..09f5ba6b74 100644 --- a/activerecord/lib/active_record/type/type_map.rb +++ b/activerecord/lib/active_record/type/type_map.rb @@ -1,24 +1,28 @@ +require 'thread_safe' + module ActiveRecord module Type class TypeMap # :nodoc: def initialize @mapping = {} + @cache = ThreadSafe::Cache.new do |h, key| + h.fetch_or_store(key, ThreadSafe::Cache.new) + end end def lookup(lookup_key, *args) - matching_pair = @mapping.reverse_each.detect do |key, _| - key === lookup_key - end + fetch(lookup_key, *args) { default_value } + end - if matching_pair - matching_pair.last.call(lookup_key, *args) - else - default_value + def fetch(lookup_key, *args, &block) + @cache[lookup_key].fetch_or_store(args) do + perform_fetch(lookup_key, *args, &block) end end def register_type(key, value = nil, &block) raise ::ArgumentError unless value || block + @cache.clear if block @mapping[key] = block @@ -40,6 +44,18 @@ module ActiveRecord private + def perform_fetch(lookup_key, *args) + matching_pair = @mapping.reverse_each.detect do |key, _| + key === lookup_key + end + + if matching_pair + matching_pair.last.call(lookup_key, *args) + else + yield lookup_key, *args + end + end + def default_value @default_value ||= Value.new end diff --git a/activerecord/lib/active_record/type/unsigned_integer.rb b/activerecord/lib/active_record/type/unsigned_integer.rb new file mode 100644 index 0000000000..ed3e527483 --- /dev/null +++ b/activerecord/lib/active_record/type/unsigned_integer.rb @@ -0,0 +1,15 @@ +module ActiveRecord + module Type + class UnsignedInteger < Integer # :nodoc: + private + + def max_value + super * 2 + end + + def min_value + 0 + end + end + end +end diff --git a/activerecord/lib/active_record/type/value.rb b/activerecord/lib/active_record/type/value.rb index 9456a4a56c..60ae47db3d 100644 --- a/activerecord/lib/active_record/type/value.rb +++ b/activerecord/lib/active_record/type/value.rb @@ -50,6 +50,10 @@ module ActiveRecord # These predicates are not documented, as I need to look further into # their use, and see if they can be removed entirely. + def text? # :nodoc: + false + end + def number? # :nodoc: false end @@ -91,8 +95,8 @@ module ActiveRecord # Convenience method for types which do not need separate type casting # behavior for user and database inputs. Called by - # `type_cast_from_database` and `type_cast_from_user` for all values - # except `nil`. + # +type_cast_from_database+ and +type_cast_from_user+ for all values + # except +nil+. def cast_value(value) # :doc: value end diff --git a/activerecord/lib/active_record/type_caster.rb b/activerecord/lib/active_record/type_caster.rb new file mode 100644 index 0000000000..63ba10c289 --- /dev/null +++ b/activerecord/lib/active_record/type_caster.rb @@ -0,0 +1,7 @@ +require 'active_record/type_caster/map' +require 'active_record/type_caster/connection' + +module ActiveRecord + module TypeCaster + end +end diff --git a/activerecord/lib/active_record/type_caster/connection.rb b/activerecord/lib/active_record/type_caster/connection.rb new file mode 100644 index 0000000000..9e4a130b40 --- /dev/null +++ b/activerecord/lib/active_record/type_caster/connection.rb @@ -0,0 +1,34 @@ +module ActiveRecord + module TypeCaster + class Connection + def initialize(connection, table_name) + @connection = connection + @table_name = table_name + end + + def type_cast_for_database(attribute_name, value) + return value if value.is_a?(Arel::Nodes::BindParam) + type = type_for(attribute_name) + type.type_cast_for_database(value) + end + + protected + + attr_reader :connection, :table_name + + private + + def type_for(attribute_name) + if connection.schema_cache.table_exists?(table_name) + column_for(attribute_name).cast_type + else + Type::Value.new + end + end + + def column_for(attribute_name) + connection.schema_cache.columns_hash(table_name)[attribute_name.to_s] + end + end + end +end diff --git a/activerecord/lib/active_record/type_caster/map.rb b/activerecord/lib/active_record/type_caster/map.rb new file mode 100644 index 0000000000..03c9e8ff83 --- /dev/null +++ b/activerecord/lib/active_record/type_caster/map.rb @@ -0,0 +1,19 @@ +module ActiveRecord + module TypeCaster + class Map + def initialize(types) + @types = types + end + + def type_cast_for_database(attr_name, value) + return value if value.is_a?(Arel::Nodes::BindParam) + type = types.type_for_attribute(attr_name.to_s) + type.type_cast_for_database(value) + end + + protected + + attr_reader :types + end + end +end diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index 7f7d49cdb4..f27adc9c40 100644 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -5,13 +5,14 @@ module ActiveRecord # +record+ method to retrieve the record which did not validate. # # begin - # complex_operation_that_calls_save!_internally + # complex_operation_that_internally_calls_save! # rescue ActiveRecord::RecordInvalid => invalid # puts invalid.record.errors # end class RecordInvalid < ActiveRecordError - attr_reader :record # :nodoc: - def initialize(record) # :nodoc: + attr_reader :record + + def initialize(record) @record = record errors = @record.errors.full_messages.join(", ") super(I18n.t(:"#{@record.class.i18n_scope}.errors.messages.record_invalid", :errors => errors, :default => :"errors.messages.record_invalid")) @@ -87,3 +88,4 @@ end require "active_record/validations/associated" require "active_record/validations/uniqueness" require "active_record/validations/presence" +require "active_record/validations/length" diff --git a/activerecord/lib/active_record/validations/associated.rb b/activerecord/lib/active_record/validations/associated.rb index b4785d3ba4..47ccef31a5 100644 --- a/activerecord/lib/active_record/validations/associated.rb +++ b/activerecord/lib/active_record/validations/associated.rb @@ -29,9 +29,11 @@ module ActiveRecord # Configuration options: # # * <tt>:message</tt> - A custom error message (default is: "is invalid"). - # * <tt>:on</tt> - Specifies when this validation is active. Runs in all - # validation contexts by default (+nil+), other options are <tt>:create</tt> - # and <tt>:update</tt>. + # * <tt>:on</tt> - Specifies the contexts where this validation is active. + # Runs in all validation contexts by default (nil). You can pass a symbol + # or an array of symbols. (e.g. <tt>on: :create</tt> or + # <tt>on: :custom_validation_context</tt> or + # <tt>on: [:create, :custom_validation_context]</tt>) # * <tt>:if</tt> - Specifies a method, proc or string to call to determine # if the validation should occur (e.g. <tt>if: :allow_validation</tt>, # or <tt>if: Proc.new { |user| user.signup_step > 2 }</tt>). The method, diff --git a/activerecord/lib/active_record/validations/length.rb b/activerecord/lib/active_record/validations/length.rb new file mode 100644 index 0000000000..ef5a6cbbe7 --- /dev/null +++ b/activerecord/lib/active_record/validations/length.rb @@ -0,0 +1,21 @@ +module ActiveRecord + module Validations + class LengthValidator < ActiveModel::Validations::LengthValidator # :nodoc: + def validate_each(record, attribute, association_or_value) + if association_or_value.respond_to?(:loaded?) && association_or_value.loaded? + association_or_value = association_or_value.target.reject(&:marked_for_destruction?) + end + super + end + end + + module ClassMethods + # See <tt>ActiveModel::Validation::LengthValidator</tt> for more information. + def validates_length_of(*attr_names) + validates_with LengthValidator, _merge_attributes(attr_names) + end + + alias_method :validates_size_of, :validates_length_of + end + end +end diff --git a/activerecord/lib/active_record/validations/presence.rb b/activerecord/lib/active_record/validations/presence.rb index e586744818..61b30749d9 100644 --- a/activerecord/lib/active_record/validations/presence.rb +++ b/activerecord/lib/active_record/validations/presence.rb @@ -8,7 +8,7 @@ module ActiveRecord associated_records = Array.wrap(record.send(attribute)) # Superclass validates presence. Ensure present records aren't about to be destroyed. - if associated_records.present? && associated_records.all? { |r| r.marked_for_destruction? } + if associated_records.present? && associated_records.all?(&:marked_for_destruction?) record.errors.add(attribute, :blank, options) end end @@ -44,9 +44,11 @@ module ActiveRecord # # Configuration options: # * <tt>:message</tt> - A custom error message (default is: "can't be blank"). - # * <tt>:on</tt> - Specifies when this validation is active. Runs in all - # validation contexts by default (+nil+), other options are <tt>:create</tt> - # and <tt>:update</tt>. + # * <tt>:on</tt> - Specifies the contexts where this validation is active. + # Runs in all validation contexts by default (nil). You can pass a symbol + # or an array of symbols. (e.g. <tt>on: :create</tt> or + # <tt>on: :custom_validation_context</tt> or + # <tt>on: [:create, :custom_validation_context]</tt>) # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if # the validation should occur (e.g. <tt>if: :allow_validation</tt>, or # <tt>if: Proc.new { |user| user.signup_step > 2 }</tt>). The method, proc diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index 2dba4c7b94..9ff2ad9c6b 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -16,9 +16,8 @@ module ActiveRecord value = map_enum_attribute(finder_class, attribute, value) relation = build_relation(finder_class, table, attribute, value) - relation = relation.and(table[finder_class.primary_key.to_sym].not_eq(record.id)) if record.persisted? + relation = relation.where.not(finder_class.primary_key => record.id) if record.persisted? relation = scope_relation(record, table, relation) - relation = finder_class.unscoped.where(relation) relation = relation.merge(options[:conditions]) if options[:conditions] if relation.exists? @@ -65,12 +64,15 @@ module ActiveRecord value = value.to_s[0, column.limit] end - if !options[:case_sensitive] && value.is_a?(String) + value = Arel::Nodes::Quoted.new(value) + + comparison = if !options[:case_sensitive] && value && column.text? # will use SQL LOWER function before comparison, unless it detects a case insensitive collation klass.connection.case_insensitive_comparison(table, attribute, column, value) else klass.connection.case_sensitive_comparison(table, attribute, column, value) end + klass.unscoped.where(comparison) end def scope_relation(record, table, relation) @@ -79,9 +81,9 @@ module ActiveRecord scope_value = record.send(reflection.foreign_key) scope_item = reflection.foreign_key else - scope_value = record.read_attribute(scope_item) + scope_value = record._read_attribute(scope_item) end - relation = relation.and(table[scope_item].eq(scope_value)) + relation = relation.where(scope_item => scope_value) end relation |