diff options
Diffstat (limited to 'activerecord/lib')
55 files changed, 490 insertions, 272 deletions
diff --git a/activerecord/lib/active_record/associations/association.rb b/activerecord/lib/active_record/associations/association.rb index 02f45731c9..67ea489b22 100644 --- a/activerecord/lib/active_record/associations/association.rb +++ b/activerecord/lib/active_record/associations/association.rb @@ -69,7 +69,7 @@ module ActiveRecord # The target is stale if the target no longer points to the record(s) that the # relevant foreign_key(s) refers to. If stale, the association accessor method # on the owner will reload the target. It's up to subclasses to implement the - # state_state method if relevant. + # stale_state method if relevant. # # Note that if the target has not been loaded, it is not considered stale. def stale_target? @@ -104,11 +104,12 @@ module ActiveRecord # Set the inverse association, if possible def set_inverse_instance(record) - if record && invertible_for?(record) + if invertible_for?(record) inverse = record.association(inverse_reflection_for(record).name) inverse.target = owner inverse.inversed = true end + record end # Returns the class of the target. belongs_to polymorphic overrides this to look at the diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index e1fa5225b5..8272a5584c 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -8,13 +8,16 @@ module ActiveRecord end def replace(record) - raise_on_type_mismatch!(record) if record - - update_counters(record) - replace_keys(record) - set_inverse_instance(record) - - @updated = true if record + if record + raise_on_type_mismatch!(record) + update_counters(record) + replace_keys(record) + set_inverse_instance(record) + @updated = true + else + decrement_counters + remove_keys + end self.target = record end @@ -34,35 +37,41 @@ module ActiveRecord !loaded? && foreign_key_present? && klass end - def update_counters(record) + def with_cache_name counter_cache_name = reflection.counter_cache_column + return unless counter_cache_name && owner.persisted? + yield counter_cache_name + end - if counter_cache_name && owner.persisted? && different_target?(record) - if record - record.class.increment_counter(counter_cache_name, record.id) - end + def update_counters(record) + with_cache_name do |name| + return unless different_target? record + record.class.increment_counter(name, record.id) + decrement_counter name + end + end - if foreign_key_present? - klass.decrement_counter(counter_cache_name, target_id) - end + def decrement_counters + with_cache_name { |name| decrement_counter name } + end + + def decrement_counter counter_cache_name + if foreign_key_present? + klass.decrement_counter(counter_cache_name, target_id) end end # Checks whether record is different to the current target, without loading it def different_target?(record) - if record.nil? - owner[reflection.foreign_key] - else - record.id != owner[reflection.foreign_key] - end + record.id != owner[reflection.foreign_key] end def replace_keys(record) - if record - owner[reflection.foreign_key] = record[reflection.association_primary_key(record.class)] - else - owner[reflection.foreign_key] = nil - end + owner[reflection.foreign_key] = record[reflection.association_primary_key(record.class)] + end + + def remove_keys + owner[reflection.foreign_key] = nil end def foreign_key_present? diff --git a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb index eae5eed3a1..b710cf6bdb 100644 --- a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb @@ -11,7 +11,12 @@ module ActiveRecord def replace_keys(record) super - owner[reflection.foreign_type] = record && record.class.base_class.name + owner[reflection.foreign_type] = record.class.base_class.name + end + + def remove_keys + super + owner[reflection.foreign_type] = nil end def different_target?(record) diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index 37ba1c73b1..3911d1b520 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/module/attribute_accessors' + # This is the parent Association class which defines the variables # used by all associations. # @@ -13,65 +15,67 @@ module ActiveRecord::Associations::Builder class Association #:nodoc: class << self attr_accessor :extensions + # TODO: This class accessor is needed to make activerecord-deprecated_finders work. + # We can move it to a constant in 5.0. + attr_accessor :valid_options end self.extensions = [] - VALID_OPTIONS = [:class_name, :class, :foreign_key, :validate] + self.valid_options = [:class_name, :class, :foreign_key, :validate] + + attr_reader :name, :scope, :options def self.build(model, name, scope, options, &block) - extension = define_extensions model, name, &block - reflection = create_reflection model, name, scope, options, extension + builder = create_builder model, name, scope, options, &block + reflection = builder.build(model) define_accessors model, reflection define_callbacks model, reflection + builder.define_extensions model reflection end - def self.create_reflection(model, name, scope, options, extension = nil) + def self.create_builder(model, name, scope, options, &block) raise ArgumentError, "association names must be a Symbol" unless name.kind_of?(Symbol) + new(model, name, scope, options, &block) + end + + def initialize(model, name, scope, options) + # TODO: Move this to create_builder as soon we drop support to activerecord-deprecated_finders. if scope.is_a?(Hash) options = scope scope = nil end - validate_options(options) + # TODO: Remove this model argument as soon we drop support to activerecord-deprecated_finders. + @name = name + @scope = scope + @options = options - scope = build_scope(scope, extension) - - ActiveRecord::Reflection.create(macro, name, scope, options, model) - end - - def self.build_scope(scope, extension) - new_scope = scope + validate_options if scope && scope.arity == 0 - new_scope = proc { instance_exec(&scope) } - end - - if extension - new_scope = wrap_scope new_scope, extension + @scope = proc { instance_exec(&scope) } end - - new_scope end - def self.wrap_scope(scope, extension) - scope + def build(model) + ActiveRecord::Reflection.create(macro, name, scope, options, model) end - def self.macro + def macro raise NotImplementedError end - def self.valid_options(options) - VALID_OPTIONS + Association.extensions.flat_map(&:valid_options) + def valid_options + Association.valid_options + Association.extensions.flat_map(&:valid_options) end - def self.validate_options(options) - options.assert_valid_keys(valid_options(options)) + def validate_options + options.assert_valid_keys(valid_options) end - def self.define_extensions(model, name) + def define_extensions(model) end def self.define_callbacks(model, reflection) @@ -114,6 +118,8 @@ module ActiveRecord::Associations::Builder raise NotImplementedError end + private + def self.add_before_destroy_callbacks(model, reflection) unless valid_dependent_options.include? reflection.options[:dependent] raise ArgumentError, "The :dependent option must be one of #{valid_dependent_options}, but is :#{reflection.options[:dependent]}" diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index aa43c34d86..62cc1e3a8d 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -1,11 +1,11 @@ module ActiveRecord::Associations::Builder class BelongsTo < SingularAssociation #:nodoc: - def self.macro + def macro :belongs_to end - def self.valid_options(options) - super + [:foreign_type, :polymorphic, :touch] + def valid_options + super + [:foreign_type, :polymorphic, :touch, :counter_cache] end def self.valid_dependent_options @@ -23,6 +23,8 @@ module ActiveRecord::Associations::Builder add_counter_cache_methods mixin end + private + def self.add_counter_cache_methods(mixin) return if mixin.method_defined? :belongs_to_counter_cache_after_create @@ -91,7 +93,13 @@ module ActiveRecord::Associations::Builder old_foreign_id = o.changed_attributes[foreign_key] if old_foreign_id - klass = o.association(name).klass + association = o.association(name) + reflection = association.reflection + if reflection.polymorphic? + klass = o.public_send("#{reflection.foreign_type}_was").constantize + else + klass = association.klass + end old_record = klass.find_by(klass.primary_key => old_foreign_id) if old_record diff --git a/activerecord/lib/active_record/associations/builder/collection_association.rb b/activerecord/lib/active_record/associations/builder/collection_association.rb index 2ff67f904d..bc15a49996 100644 --- a/activerecord/lib/active_record/associations/builder/collection_association.rb +++ b/activerecord/lib/active_record/associations/builder/collection_association.rb @@ -7,11 +7,22 @@ module ActiveRecord::Associations::Builder CALLBACKS = [:before_add, :after_add, :before_remove, :after_remove] - def self.valid_options(options) + def valid_options super + [:table_name, :before_add, :after_add, :before_remove, :after_remove, :extend] end + attr_reader :block_extension + + def initialize(model, name, scope, options) + super + @mod = nil + if block_given? + @mod = Module.new(&Proc.new) + @scope = wrap_scope @scope, @mod + end + end + def self.define_callbacks(model, reflection) super name = reflection.name @@ -21,11 +32,10 @@ module ActiveRecord::Associations::Builder } end - def self.define_extensions(model, name) - if block_given? + def define_extensions(model) + if @mod extension_module_name = "#{model.name.demodulize}#{name.to_s.camelize}AssociationExtension" - extension = Module.new(&Proc.new) - model.parent.const_set(extension_module_name, extension) + model.parent.const_set(extension_module_name, @mod) end end @@ -68,7 +78,9 @@ module ActiveRecord::Associations::Builder CODE end - def self.wrap_scope(scope, mod) + private + + def wrap_scope(scope, mod) if scope proc { |owner| instance_exec(owner, &scope).extending(mod) } else 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 1c9c04b044..e472277374 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 @@ -20,7 +20,7 @@ module ActiveRecord::Associations::Builder def self.build(lhs_class, name, options) if options[:join_table] - KnownTable.new options[:join_table] + KnownTable.new options[:join_table].to_s else class_name = options.fetch(:class_name) { name.to_s.camelize.singularize @@ -84,11 +84,11 @@ module ActiveRecord::Associations::Builder middle_name = [lhs_model.name.downcase.pluralize, association_name].join('_').gsub(/::/, '_').to_sym middle_options = middle_options join_model - - HasMany.create_reflection(lhs_model, - middle_name, - nil, - middle_options) + hm_builder = HasMany.create_builder(lhs_model, + middle_name, + nil, + middle_options) + hm_builder.build lhs_model end private diff --git a/activerecord/lib/active_record/associations/builder/has_many.rb b/activerecord/lib/active_record/associations/builder/has_many.rb index 227184cd19..7909b93622 100644 --- a/activerecord/lib/active_record/associations/builder/has_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_many.rb @@ -1,10 +1,10 @@ module ActiveRecord::Associations::Builder class HasMany < CollectionAssociation #:nodoc: - def self.macro + def macro :has_many end - def self.valid_options(options) + def valid_options super + [:primary_key, :dependent, :as, :through, :source, :source_type, :inverse_of, :counter_cache] end diff --git a/activerecord/lib/active_record/associations/builder/has_one.rb b/activerecord/lib/active_record/associations/builder/has_one.rb index 064a3c8b51..f359efd496 100644 --- a/activerecord/lib/active_record/associations/builder/has_one.rb +++ b/activerecord/lib/active_record/associations/builder/has_one.rb @@ -1,10 +1,10 @@ module ActiveRecord::Associations::Builder class HasOne < SingularAssociation #:nodoc: - def self.macro + def macro :has_one end - def self.valid_options(options) + def valid_options valid = super + [:order, :as] valid += [:through, :source, :source_type] if options[:through] valid @@ -14,6 +14,8 @@ module ActiveRecord::Associations::Builder [:destroy, :delete, :nullify, :restrict_with_error, :restrict_with_exception] end + private + def self.add_before_destroy_callbacks(model, reflection) super unless reflection.options[:through] end diff --git a/activerecord/lib/active_record/associations/builder/singular_association.rb b/activerecord/lib/active_record/associations/builder/singular_association.rb index 66b03c0301..e655c389a6 100644 --- a/activerecord/lib/active_record/associations/builder/singular_association.rb +++ b/activerecord/lib/active_record/associations/builder/singular_association.rb @@ -2,8 +2,8 @@ module ActiveRecord::Associations::Builder class SingularAssociation < Association #:nodoc: - def self.valid_options(options) - super + [:remote, :dependent, :counter_cache, :primary_key, :inverse_of] + def valid_options + super + [:remote, :dependent, :primary_key, :inverse_of] end def self.define_accessors(model, reflection) diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index c7315b12bd..e9ed5d9979 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -193,7 +193,11 @@ module ActiveRecord # Count all records using SQL. Construct options and pass them with # scope to the target class's +count+. - def count(column_name = nil) + def count(column_name = nil, count_options = {}) + # TODO: Remove count_options argument as soon we remove support to + # activerecord-deprecated_finders. + column_name, count_options = nil, column_name if column_name.is_a?(Hash) + relation = scope if association_scope.distinct_value # This is needed because 'SELECT count(DISTINCT *)..' is not valid SQL. diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index 2e70a07962..0dabe256e3 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -669,8 +669,10 @@ module ActiveRecord # # #<Pet id: 2, name: "Spook", person_id: 1>, # # #<Pet id: 3, name: "Choo-Choo", person_id: 1> # # ] - def count(column_name = nil) - @association.count(column_name) + def count(column_name = nil, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. + @association.count(column_name, options) end # Returns the size of the collection. If the collection hasn't been loaded, @@ -787,12 +789,12 @@ module ActiveRecord # has_many :pets # end # - # person.pets.count #=> 1 - # person.pets.many? #=> false + # person.pets.count # => 1 + # person.pets.many? # => false # # person.pets << Pet.new(name: 'Snoopy') - # person.pets.count #=> 2 - # person.pets.many? #=> true + # person.pets.count # => 2 + # person.pets.many? # => true # # You can also pass a block to define criteria. The # behavior is the same, it returns true if the collection diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 0a23109b9b..72e0891702 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -108,7 +108,7 @@ module ActiveRecord # Deletes the records according to the <tt>:dependent</tt> option. def delete_records(records, method) if method == :destroy - records.each { |r| r.destroy } + records.each(&:destroy!) update_counter(-records.length) unless inverse_updates_counter_cache? else if records == :all diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index c3ac0680ea..9506960be3 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -73,7 +73,7 @@ module ActiveRecord # base is the base class on which operation is taking place. # associations is the list of associations which are joined using hash, symbol or array. - # joins is the list of all string join commnads and arel nodes. + # joins is the list of all string join commands and arel nodes. # # Example : # @@ -83,14 +83,14 @@ module ActiveRecord # end # # If I execute `@physician.patients.to_a` then - # base #=> Physician - # associations #=> [] - # joins #=> [#<Arel::Nodes::InnerJoin: ...] + # base # => Physician + # associations # => [] + # joins # => [#<Arel::Nodes::InnerJoin: ...] # # However if I execute `Physician.joins(:appointments).to_a` then - # base #=> Physician - # associations #=> [:appointments] - # joins #=> [] + # base # => Physician + # associations # => [:appointments] + # joins # => [] # def initialize(base, associations, joins) @alias_tracker = AliasTracker.new(base.connection, joins) 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 191d430636..84e18684d8 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -86,11 +86,11 @@ module ActiveRecord # end # # If I execute `Physician.joins(:appointments).to_a` then - # reflection #=> #<ActiveRecord::Reflection::AssociationReflection @macro=:has_many ...> - # table #=> #<Arel::Table @name="appointments" ...> - # key #=> physician_id - # foreign_table #=> #<Arel::Table @name="physicians" ...> - # foreign_key #=> id + # reflection # => #<ActiveRecord::Reflection::AssociationReflection @macro=:has_many ...> + # table # => #<Arel::Table @name="appointments" ...> + # key # => physician_id + # foreign_table # => #<Arel::Table @name="physicians" ...> + # foreign_key # => id # def build_constraint(klass, table, key, foreign_table, foreign_key) constraint = table[key].eq(foreign_table[foreign_key]) diff --git a/activerecord/lib/active_record/associations/preloader/singular_association.rb b/activerecord/lib/active_record/associations/preloader/singular_association.rb index 2b5cfda8ce..f60647a81e 100644 --- a/activerecord/lib/active_record/associations/preloader/singular_association.rb +++ b/activerecord/lib/active_record/associations/preloader/singular_association.rb @@ -11,7 +11,7 @@ module ActiveRecord association = owner.association(reflection.name) association.target = record - association.set_inverse_instance(record) + association.set_inverse_instance(record) if record end end diff --git a/activerecord/lib/active_record/associations/singular_association.rb b/activerecord/lib/active_record/associations/singular_association.rb index 02dc464536..e4500af5b2 100644 --- a/activerecord/lib/active_record/associations/singular_association.rb +++ b/activerecord/lib/active_record/associations/singular_association.rb @@ -39,7 +39,9 @@ module ActiveRecord end def find_target - scope.first.tap { |record| set_inverse_instance(record) } + if record = scope.first + set_inverse_instance record + end end def replace(record) diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 3924eec872..73761520f7 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -128,6 +128,16 @@ module ActiveRecord end end + def find_generated_attribute_method(method_name) # :nodoc: + klass = self + until klass == Base + gen_methods = klass.generated_attribute_methods + return gen_methods.instance_method(method_name) if method_defined_within?(method_name, gen_methods, Object) + klass = klass.superclass + end + nil + end + # Returns +true+ if +attribute+ is an attribute method and table exists, # +false+ otherwise. # @@ -163,7 +173,14 @@ module ActiveRecord def method_missing(method, *args, &block) # :nodoc: self.class.define_attribute_methods if respond_to_without_attributes?(method) - send(method, *args, &block) + # make sure to invoke the correct attribute method, as we might have gotten here via a `super` + # call in a overwritten attribute method + if attribute_method = self.class.find_generated_attribute_method(method) + # this is probably horribly slow, but should only happen at most once for a given AR class + attribute_method.bind(self).call(*args, &block) + else + send(method, *args, &block) + end else super end @@ -313,7 +330,7 @@ module ActiveRecord end # Returns the value of the attribute identified by <tt>attr_name</tt> after it has been typecast (for example, - # "2004-12-12" in a data column is cast to a date object, like Date.new(2004, 12, 12)). It raises + # "2004-12-12" in a date column is cast to a date object, like Date.new(2004, 12, 12)). It raises # <tt>ActiveModel::MissingAttributeError</tt> if the identified attribute is missing. # # Alias for the <tt>read_attribute</tt> method. diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index c152a246b5..d01e9aea59 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -102,7 +102,7 @@ module ActiveRecord end # Returns the value of the attribute identified by <tt>attr_name</tt> after - # it has been typecast (for example, "2004-12-12" in a data column is cast + # 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) # If it's cached, just return it diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index e05e22ebb0..1d3ec75aa1 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -4,7 +4,7 @@ require 'active_support/benchmarkable' require 'active_support/dependencies' require 'active_support/descendants_tracker' require 'active_support/time' -require 'active_support/core_ext/class/attribute_accessors' +require 'active_support/core_ext/module/attribute_accessors' require 'active_support/core_ext/class/delegating_attributes' require 'active_support/core_ext/array/extract_options' require 'active_support/core_ext/hash/deep_merge' diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index 128a9377c1..35f19f0bc0 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -128,7 +128,7 @@ module ActiveRecord # record.credit_card_number = decrypt(record.credit_card_number) # end # - # alias_method :after_find, :after_save + # alias_method :after_initialize, :after_save # # private # def encrypt(value) @@ -163,7 +163,7 @@ module ActiveRecord # record.send("#{@attribute}=", decrypt(record.send("#{@attribute}"))) # end # - # alias_method :after_find, :after_save + # alias_method :after_initialize, :after_save # # private # def encrypt(value) 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 cfdcae7f63..cebe741daa 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -86,7 +86,7 @@ module ActiveRecord end end - # Return the number of threads currently waiting on this + # Returns the number of threads currently waiting on this # queue. def num_waiting synchronize 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 06a2ddb8b7..e196df079b 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -305,10 +305,6 @@ module ActiveRecord "DEFAULT VALUES" end - def case_sensitive_equality_operator - "=" - 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 @@ -350,7 +346,7 @@ module ActiveRecord protected - # Return a subquery for the given key using the join information. + # Returns a subquery for the given key using the join information. def subquery_for(key, select) subselect = select.clone subselect.projections = [key] diff --git a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb index 8399232d73..adc23a6674 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb @@ -31,8 +31,8 @@ module ActiveRecord old, @query_cache_enabled = @query_cache_enabled, true yield ensure - clear_query_cache @query_cache_enabled = old + clear_query_cache unless @query_cache_enabled end def enable_query_cache! diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index 552a22d28a..75501852ed 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -43,7 +43,9 @@ module ActiveRecord # SQLite does not understand dates, so this method will convert a Date # to a String. def type_cast(value, column) - return value.id if value.respond_to?(:quoted_id) + if value.respond_to?(:quoted_id) && value.respond_to?(:id) + return value.id + end case value when String, ActiveSupport::Multibyte::Chars 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 7c330a2f25..a51691bfa8 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -34,9 +34,10 @@ module ActiveRecord def visit_TableDefinition(o) create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE " - create_sql << "#{quote_table_name(o.name)} (" - create_sql << o.columns.map { |c| accept c }.join(', ') - create_sql << ") #{o.options}" + create_sql << "#{quote_table_name(o.name)} " + create_sql << "(#{o.columns.map { |c| accept c }.join(', ')}) " unless o.as + create_sql << "#{o.options}" + create_sql << " AS #{@conn.to_sql(o.as)}" if o.as create_sql end 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 063b19871a..c39bf15e83 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -49,14 +49,15 @@ module ActiveRecord # An array of ColumnDefinition objects, representing the column changes # that have been defined. attr_accessor :indexes - attr_reader :name, :temporary, :options + attr_reader :name, :temporary, :options, :as - def initialize(types, name, temporary, options) + def initialize(types, name, temporary, options, as = nil) @columns_hash = {} @indexes = {} @native = types @temporary = temporary @options = options + @as = as @name = name 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 4b425494d0..00383bad3b 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -131,6 +131,9 @@ module ActiveRecord # [<tt>:force</tt>] # Set to true to drop the table before creating it. # Defaults to false. + # [<tt>:as</tt>] + # SQL to use to generate the table. When this option is used, the block is + # ignored, as are the <tt>:id</tt> and <tt>:primary_key</tt> options. # # ====== Add a backend specific option to the generated SQL (MySQL) # @@ -169,19 +172,31 @@ module ActiveRecord # supplier_id int # ) # + # ====== Create a temporary table based on a query + # + # create_table(:long_query, temporary: true, + # as: "SELECT * FROM orders INNER JOIN line_items ON order_id=orders.id") + # + # generates: + # + # CREATE TEMPORARY TABLE long_query AS + # SELECT * FROM orders INNER JOIN line_items ON order_id=orders.id + # # See also TableDefinition#column for details on how to create columns. def create_table(table_name, options = {}) - td = create_table_definition table_name, options[:temporary], options[:options] + td = create_table_definition table_name, options[:temporary], options[:options], options[:as] - unless options[:id] == false - pk = options.fetch(:primary_key) { - Base.get_primary_key table_name.to_s.singularize - } + if !options[:as] + unless options[:id] == false + pk = options.fetch(:primary_key) { + Base.get_primary_key table_name.to_s.singularize + } - td.primary_key pk, options.fetch(:id, :primary_key), options - end + td.primary_key pk, options.fetch(:id, :primary_key), options + end - yield td if block_given? + yield td if block_given? + end if options[:force] && table_exists?(table_name) drop_table(table_name, options) @@ -558,8 +573,8 @@ module ActiveRecord # 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 - remove_index(table_name, :name => old_name) - add_index(table_name, old_index_def.columns, :name => new_name, :unique => old_index_def.unique) + add_index(table_name, old_index_def.columns, name: new_name, unique: old_index_def.unique) + remove_index(table_name, name: old_name) end def index_name(table_name, options) #:nodoc: @@ -690,7 +705,7 @@ module ActiveRecord column_type_sql else - type + type.to_s end end @@ -826,8 +841,8 @@ module ActiveRecord end private - def create_table_definition(name, temporary, options) - TableDefinition.new native_database_types, name, temporary, options + def create_table_definition(name, temporary, options, as = nil) + TableDefinition.new native_database_types, name, temporary, options, as end def create_alter_table(name) 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 dcbc3466b2..7768c24967 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -148,7 +148,7 @@ module ActiveRecord QUOTED_TRUE, QUOTED_FALSE = '1', '0' NATIVE_DATABASE_TYPES = { - :primary_key => "int(11) DEFAULT NULL auto_increment PRIMARY KEY", + :primary_key => "int(11) auto_increment PRIMARY KEY", :string => { :name => "varchar", :limit => 255 }, :text => { :name => "text" }, :integer => { :name => "int", :limit => 4 }, @@ -207,9 +207,14 @@ module ActiveRecord end def type_cast(value, column) - return super unless value == true || value == false - - value ? 1 : 0 + case value + when TrueClass + 1 + when FalseClass + 0 + else + super + end end # MySQL 4 technically support transaction isolation, but it is affected by a bug @@ -278,7 +283,7 @@ module ActiveRecord # REFERENTIAL INTEGRITY ==================================== - def disable_referential_integrity(&block) #:nodoc: + def disable_referential_integrity #:nodoc: old = select_value("SELECT @@FOREIGN_KEY_CHECKS") begin @@ -298,12 +303,6 @@ module ActiveRecord else log(sql, name) { @connection.query(sql) } end - rescue ActiveRecord::StatementInvalid => exception - if exception.message.split(":").first =~ /Packets out of order/ - raise ActiveRecord::StatementInvalid.new("'Packets out of order' error was received from the database. Please update your mysql bindings (gem install mysql) and read http://dev.mysql.com/doc/mysql/en/password-hashing.html for more information. If you're on Windows, use the Instant Rails installer to get the updated mysql bindings.", exception.original_exception) - else - raise - end end # MysqlAdapter has to free a result after using it, so we use this method to write @@ -487,6 +486,18 @@ module ActiveRecord rename_table_indexes(table_name, new_name) end + def drop_table(table_name, options = {}) + execute "DROP#{' TEMPORARY' if options[:temporary]} TABLE #{quote_table_name(table_name)}" + end + + def rename_index(table_name, old_name, new_name) + if (version[0] == 5 && version[1] >= 7) || version[0] >= 6 + 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) column = column_for(table_name, column_name) change_column table_name, column_name, column.sql_type, :default => default diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index c4dcba0501..760f1435eb 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -419,14 +419,19 @@ module ActiveRecord if result types = {} + fields = [] result.fetch_fields.each { |field| + field_name = field.name + fields << field_name + if field.decimals > 0 - types[field.name] = Fields::Decimal.new + types[field_name] = Fields::Decimal.new else - types[field.name] = Fields.find_type field + types[field_name] = Fields.find_type field end } - result_set = ActiveRecord::Result.new(types.keys, result.to_a, types) + + result_set = ActiveRecord::Result.new(fields, result.to_a, types) result.free else result_set = ActiveRecord::Result.new([], []) 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 fa173d13a2..f349c37724 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/database_statements.rb @@ -142,7 +142,7 @@ module ActiveRecord fields.each_with_index do |fname, i| ftype = result.ftype i fmod = result.fmod i - types[fname] = OID::TYPE_MAP.fetch(ftype, fmod) { |oid, mod| + types[fname] = type_map.fetch(ftype, fmod) { |oid, mod| warn "unknown OID: #{fname}(#{oid}) (#{sql})" OID::Identity.new } diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index 6c5792954f..fae260a921 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -301,17 +301,15 @@ module ActiveRecord end end - TYPE_MAP = TypeMap.new # :nodoc: - - # When the PG adapter connects, the pg_type table is queried. The + # When the PG adapter connects, the pg_type table is queried. The # key of this hash maps to the `typname` column from the table. - # TYPE_MAP is then dynamically built with oids as the key and type + # type_map is then dynamically built with oids as the key and type # objects as values. NAMES = Hash.new { |h,k| # :nodoc: h[k] = OID::Identity.new } - # Register an OID type named +name+ with a typcasting object in + # Register an OID type named +name+ with a typecasting object in # +type+. +name+ should correspond to the `typname` column in # the `pg_type` table. def self.register_type(name, type) 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 5dc70a5ad1..571257f6dd 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -172,7 +172,7 @@ module ActiveRecord def columns(table_name) # Limit, precision, and scale are all handled by the superclass. column_definitions(table_name).map do |column_name, type, default, notnull, oid, fmod| - oid = OID::TYPE_MAP.fetch(oid.to_i, fmod.to_i) { + oid = type_map.fetch(oid.to_i, fmod.to_i) { OID::Identity.new } PostgreSQLColumn.new(column_name, default, oid, type, notnull == 'f') diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index adeb57d913..dd3bfa5546 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -565,7 +565,8 @@ module ActiveRecord raise "Your version of PostgreSQL (#{postgresql_version}) is too old, please upgrade!" end - initialize_type_map + @type_map = OID::TypeMap.new + initialize_type_map(type_map) @local_tz = execute('SHOW TIME ZONE', 'SCHEMA').first["TimeZone"] @use_insert_returning = @config.key?(:insert_returning) ? self.class.type_cast_config_to_boolean(@config[:insert_returning]) : true end @@ -738,39 +739,56 @@ module ActiveRecord private + def type_map + @type_map + end + def reload_type_map - OID::TYPE_MAP.clear - initialize_type_map + type_map.clear + initialize_type_map(type_map) end - def initialize_type_map + def add_oid(row, records_by_oid, type_map) + return type_map if type_map.key? row['type_elem'].to_i + + if OID.registered_type? row['typname'] + # this composite type is explicitly registered + vector = OID::NAMES[row['typname']] + else + # use the default for composite types + unless type_map.key? row['typelem'].to_i + add_oid records_by_oid[row['typelem']], records_by_oid, type_map + end + + vector = OID::Vector.new row['typdelim'], type_map[row['typelem'].to_i] + end + + type_map[row['oid'].to_i] = vector + type_map + end + + def initialize_type_map(type_map) result = execute('SELECT oid, typname, typelem, typdelim, typinput FROM pg_type', 'SCHEMA') leaves, nodes = result.partition { |row| row['typelem'] == '0' } # populate the leaf nodes leaves.find_all { |row| OID.registered_type? row['typname'] }.each do |row| - OID::TYPE_MAP[row['oid'].to_i] = OID::NAMES[row['typname']] + type_map[row['oid'].to_i] = OID::NAMES[row['typname']] end + records_by_oid = result.group_by { |row| row['oid'] } + arrays, nodes = nodes.partition { |row| row['typinput'] == 'array_in' } # populate composite types - nodes.find_all { |row| OID::TYPE_MAP.key? row['typelem'].to_i }.each do |row| - if OID.registered_type? row['typname'] - # this composite type is explicitly registered - vector = OID::NAMES[row['typname']] - else - # use the default for composite types - vector = OID::Vector.new row['typdelim'], OID::TYPE_MAP[row['typelem'].to_i] - end - - OID::TYPE_MAP[row['oid'].to_i] = vector + nodes.each do |row| + add_oid row, records_by_oid, type_map end # populate array types - arrays.find_all { |row| OID::TYPE_MAP.key? row['typelem'].to_i }.each do |row| - array = OID::Array.new OID::TYPE_MAP[row['typelem'].to_i] - OID::TYPE_MAP[row['oid'].to_i] = array + arrays.find_all { |row| type_map.key? row['typelem'].to_i }.each do |row| + array = OID::Array.new type_map[row['typelem'].to_i] + type_map[row['oid'].to_i] = array end end @@ -951,12 +969,12 @@ module ActiveRecord end def extract_table_ref_from_insert_sql(sql) - sql[/into\s+([^\(]*).*values\s*\(/i] + sql[/into\s+([^\(]*).*values\s*\(/im] $1.strip if $1 end - def create_table_definition(name, temporary, options) - TableDefinition.new native_database_types, name, temporary, options + def create_table_definition(name, temporary, options, as = nil) + TableDefinition.new native_database_types, name, temporary, options, as end def update_table_definition(table_name, base) diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 2cf1015f2c..a02eda5603 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -586,7 +586,11 @@ module ActiveRecord def translate_exception(exception, message) case exception.message - when /column(s)? .* (is|are) not unique/ + # SQLite 3.8.2 returns a newly formatted error message: + # UNIQUE constraint failed: *table_name*.*column_name* + # Older versions of SQLite return: + # column *column_name* is not unique + when /column(s)? .* (is|are) not unique/, /UNIQUE constraint failed: .*/ RecordNotUnique.new(message, exception) else super diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 96b5686ae0..8808ad5a4c 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -126,7 +126,7 @@ module ActiveRecord # Returns an instance of <tt>Arel::Table</tt> loaded with the current table name. # # class Post < ActiveRecord::Base - # scope :published_and_commented, published.and(self.arel_table[:comments_count].gt(0)) + # scope :published_and_commented, -> { published.and(self.arel_table[:comments_count].gt(0)) } # end def arel_table @arel_table ||= Arel::Table.new(table_name, arel_engine) diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index 3aa5faed87..dcbdf75627 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -77,15 +77,15 @@ module ActiveRecord "#{quoted_column} = COALESCE(#{quoted_column}, 0) #{operator} #{value.abs}" end - where(primary_key => id).update_all updates.join(', ') + unscoped.where(primary_key => id).update_all updates.join(', ') end # Increment a numeric field by one, via a direct SQL update. # - # This method is used primarily for maintaining counter_cache columns used to - # store aggregate values. For example, a DiscussionBoard may cache posts_count - # and comments_count to avoid running an SQL query to calculate the number of - # posts and comments there are each time it is displayed. + # This method is used primarily for maintaining counter_cache columns that are + # used to store aggregate values. For example, a DiscussionBoard may cache + # posts_count and comments_count to avoid running an SQL query to calculate the + # number of posts and comments there are, each time it is displayed. # # ==== Parameters # diff --git a/activerecord/lib/active_record/dynamic_matchers.rb b/activerecord/lib/active_record/dynamic_matchers.rb index e650ebcf64..5caab09038 100644 --- a/activerecord/lib/active_record/dynamic_matchers.rb +++ b/activerecord/lib/active_record/dynamic_matchers.rb @@ -84,13 +84,18 @@ module ActiveRecord "#{finder}(#{attributes_hash})" end + # The parameters in the signature may have reserved Ruby words, in order + # to prevent errors, we start each param name with `_`. + # # Extended in activerecord-deprecated_finders def signature - attribute_names.join(', ') + attribute_names.map { |name| "_#{name}" }.join(', ') end + # Given that the parameters starts with `_`, the finder needs to use the + # same parameter name. def attributes_hash - "{" + attribute_names.map { |name| ":#{name} => #{name}" }.join(',') + "}" + "{" + attribute_names.map { |name| ":#{name} => _#{name}" }.join(',') + "}" end def finder diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 5fcc0382d8..837989aaa7 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -26,12 +26,23 @@ module ActiveRecord # # Good practice is to let the first declared status be the default. # - # Finally, it's also possible to explicitly map the relation between attribute and database integer: + # Finally, it's also possible to explicitly map the relation between attribute and + # database integer with a +Hash+: # # class Conversation < ActiveRecord::Base # enum status: { active: 0, archived: 1 } # end # + # Note that when an +Array+ is used, the implicit mapping from the values to database + # integers is derived from the order the values appear in the array. In the example, + # <tt>:active</tt> is mapped to +0+ as it's the first element, and <tt>:archived</tt> + # is mapped to +1+. In general, the +i+-th element is mapped to <tt>i-1</tt> in the + # database. + # + # Therefore, once a value is added to the enum array, its position in the array must + # be maintained, and new values should only be added to the end of the array. To + # remove unused values, the explicit +Hash+ syntax should be used. + # # In rare circumstances you might need to access the mapping directly. # The mappings are exposed through a constant with the attributes name: # @@ -77,12 +88,13 @@ module ActiveRecord end end - def _enum_methods_module - @_enum_methods_module ||= begin - mod = Module.new - include mod - mod + private + def _enum_methods_module + @_enum_methods_module ||= begin + mod = Module.new + include mod + mod + end end - end end end diff --git a/activerecord/lib/active_record/errors.rb b/activerecord/lib/active_record/errors.rb index 7e38719811..2602f79db9 100644 --- a/activerecord/lib/active_record/errors.rb +++ b/activerecord/lib/active_record/errors.rb @@ -188,7 +188,7 @@ module ActiveRecord end end - # Raised when a primary key is needed, but there is not one specified in the schema or model. + # Raised when a primary key is needed, but not specified in the schema or model. class UnknownPrimaryKey < ActiveRecordError attr_reader :model diff --git a/activerecord/lib/active_record/fixture_set/file.rb b/activerecord/lib/active_record/fixture_set/file.rb index fbd7a4d891..8132310c91 100644 --- a/activerecord/lib/active_record/fixture_set/file.rb +++ b/activerecord/lib/active_record/fixture_set/file.rb @@ -38,7 +38,8 @@ module ActiveRecord end def render(content) - ERB.new(content).result + context = ActiveRecord::FixtureSet::RenderContext.create_subclass.new + ERB.new(content).result(context.get_binding) end # Validate our unmarshalled data. diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 8601414209..a7a54483bc 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -119,6 +119,23 @@ module ActiveRecord # perhaps you should reexamine whether your application is properly testable. Hence, dynamic values # in fixtures are to be considered a code smell. # + # Helper methods defined in a fixture will not be available in other fixtures, to prevent against + # unwanted inter-test dependencies. Methods used by multiple fixtures should be defined in a module + # that is included in <tt>ActiveRecord::FixtureSet.context_class</tt>. + # + # - define a helper method in `test_helper.rb` + # class FixtureFileHelpers + # def file_sha(path) + # Digest::SHA2.hexdigest(File.read(Rails.root.join('test/fixtures', path))) + # end + # end + # ActiveRecord::FixtureSet.context_class.send :include, FixtureFileHelpers + # + # - use the helper method in a fixture + # photo: + # name: kitten.png + # sha: <%= file_sha 'files/kitten.png' %> + # # = Transactional Fixtures # # Test cases can use begin+rollback to isolate their changes to the database instead of having to @@ -529,6 +546,11 @@ module ActiveRecord Zlib.crc32(label.to_s) % MAX_ID end + # Superclass for the evaluation contexts used by ERB fixtures. + def self.context_class + @context_class ||= Class.new + end + attr_reader :table_name, :name, :fixtures, :model_class, :config def initialize(connection, name, class_name, path, config = ActiveRecord::Base) @@ -582,7 +604,7 @@ module ActiveRecord } end - # Return a hash of rows to be inserted. The key is the table, the value is + # Returns a hash of rows to be inserted. The key is the table, the value is # a list of rows to insert to that table. def table_rows now = config.default_timezone == :utc ? Time.now.utc : Time.now @@ -989,3 +1011,13 @@ module ActiveRecord end end end + +class ActiveRecord::FixtureSet::RenderContext # :nodoc: + def self.create_subclass + Class.new ActiveRecord::FixtureSet.context_class do + def get_binding + binding() + end + end + end +end diff --git a/activerecord/lib/active_record/integration.rb b/activerecord/lib/active_record/integration.rb index 27576b1e61..31e2518540 100644 --- a/activerecord/lib/active_record/integration.rb +++ b/activerecord/lib/active_record/integration.rb @@ -98,8 +98,10 @@ module ActiveRecord super() else define_method :to_param do - if (default = super()) && (result = send(method_name).to_s).present? - "#{default}-#{result.squish.truncate(20, separator: /\s/, omission: nil).parameterize}" + if (default = super()) && + (result = send(method_name).to_s).present? && + (param = result.squish.truncate(20, separator: /\s/, omission: nil).parameterize).present? + "#{default}-#{param}" else default end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index d010f23517..7d7e97e6c9 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -1,41 +1,48 @@ -require "active_support/core_ext/class/attribute_accessors" +require "active_support/core_ext/module/attribute_accessors" require 'set' module ActiveRecord + class MigrationError < ActiveRecordError#:nodoc: + def initialize(message = nil) + message = "\n\n#{message}\n\n" if message + super + end + end + # Exception that can be raised to stop migrations from going backwards. - class IrreversibleMigration < ActiveRecordError + class IrreversibleMigration < MigrationError end - class DuplicateMigrationVersionError < ActiveRecordError#:nodoc: + class DuplicateMigrationVersionError < MigrationError#:nodoc: def initialize(version) super("Multiple migrations have the version number #{version}") end end - class DuplicateMigrationNameError < ActiveRecordError#:nodoc: + class DuplicateMigrationNameError < MigrationError#:nodoc: def initialize(name) super("Multiple migrations have the name #{name}") end end - class UnknownMigrationVersionError < ActiveRecordError #:nodoc: + class UnknownMigrationVersionError < MigrationError #:nodoc: def initialize(version) super("No migration with version number #{version}") end end - class IllegalMigrationNameError < ActiveRecordError#:nodoc: + class IllegalMigrationNameError < MigrationError#:nodoc: def initialize(name) super("Illegal name for migration file: #{name}\n\t(only lower case letters, numbers, and '_' allowed)") end end - class PendingMigrationError < ActiveRecordError#:nodoc: + class PendingMigrationError < MigrationError#:nodoc: def initialize if defined?(Rails) - super("Migrations are pending; run 'bin/rake db:migrate RAILS_ENV=#{::Rails.env}' to resolve this issue.") + super("Migrations are pending. To resolve this issue, run:\n\n\tbin/rake db:migrate RAILS_ENV=#{::Rails.env}") else - super("Migrations are pending; run 'bin/rake db:migrate' to resolve this issue.") + super("Migrations are pending. To resolve this issue, run:\n\n\tbin/rake db:migrate") end end end @@ -896,7 +903,7 @@ module ActiveRecord validate(@migrations) - ActiveRecord::SchemaMigration.create_table + Base.connection.initialize_schema_migrations_table end def current_version diff --git a/activerecord/lib/active_record/null_relation.rb b/activerecord/lib/active_record/null_relation.rb index 080b20134d..5b255c3fe5 100644 --- a/activerecord/lib/active_record/null_relation.rb +++ b/activerecord/lib/active_record/null_relation.rb @@ -50,8 +50,10 @@ module ActiveRecord 0 end - def calculate(_operation, _column_name) - if _operation == :count + def calculate(operation, _column_name, _options = {}) + # TODO: Remove _options argument as soon we remove support to + # activerecord-deprecated_finders. + if operation == :count 0 else nil diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index a73a140ef1..35fbad466e 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -10,9 +10,6 @@ module ActiveRecord # The +attributes+ parameter can be either a Hash or an Array of Hashes. These Hashes describe the # attributes on the objects that are to be created. # - # +create+ respects mass-assignment security and accepts either +:as+ or +:without_protection+ options - # in the +options+ parameter. - # # ==== Examples # # Create a single new object # User.create(first_name: 'Jamie') diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 52b3d3e5e6..0fdfed991c 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -343,7 +343,7 @@ db_namespace = namespace :db do end # desc "Recreate the test database from a fresh schema" - task :clone do + task :clone => :environment do case ActiveRecord::Base.schema_format when :ruby db_namespace["test:clone_schema"].invoke @@ -364,7 +364,7 @@ db_namespace = namespace :db do end # desc 'Check for pending migrations and load the test schema' - task :prepare => :load_config do + task :prepare => [:environment, :load_config] do unless ActiveRecord::Base.configurations.blank? db_namespace['test:load'].invoke end @@ -401,4 +401,3 @@ namespace :railties do end task 'test:prepare' => ['db:test:prepare', 'db:test:load', 'db:abort_if_pending_migrations'] - diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 6e0669a77f..745c6cf349 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -7,7 +7,7 @@ module ActiveRecord MULTI_VALUE_METHODS = [:includes, :eager_load, :preload, :select, :group, :order, :joins, :where, :having, :bind, :references, - :extending] + :extending, :unscope] SINGLE_VALUE_METHODS = [:limit, :offset, :lock, :readonly, :from, :reordering, :reverse_order, :distinct, :create_with, :uniq] diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 2d267183ce..45ffb99868 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -19,16 +19,21 @@ module ActiveRecord # # Person.group(:city).count # # => { 'Rome' => 5, 'Paris' => 3 } - def count(column_name = nil) - calculate(:count, column_name) + def count(column_name = nil, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. + column_name, options = nil, column_name if column_name.is_a?(Hash) + calculate(:count, column_name, options) end # Calculates the average value on a given column. Returns +nil+ if there's # no row. See +calculate+ for examples with options. # # Person.average(:age) # => 35.8 - def average(column_name) - calculate(:average, column_name) + def average(column_name, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. + calculate(:average, column_name, options) end # Calculates the minimum value on a given column. The value is returned @@ -36,8 +41,10 @@ module ActiveRecord # +calculate+ for examples with options. # # Person.minimum(:age) # => 7 - def minimum(column_name) - calculate(:minimum, column_name) + def minimum(column_name, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. + calculate(:minimum, column_name, options) end # Calculates the maximum value on a given column. The value is returned @@ -45,8 +52,10 @@ module ActiveRecord # +calculate+ for examples with options. # # Person.maximum(:age) # => 93 - def maximum(column_name) - calculate(:maximum, column_name) + def maximum(column_name, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. + calculate(:maximum, column_name, options) end # Calculates the sum of values on a given column. The value is returned @@ -89,15 +98,17 @@ module ActiveRecord # Person.group(:last_name).having("min(age) > 17").minimum(:age) # # Person.sum("2 * age") - def calculate(operation, column_name) + def calculate(operation, column_name, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. if column_name.is_a?(Symbol) && attribute_alias?(column_name) column_name = attribute_alias(column_name) end if has_include?(column_name) - construct_relation_for_association_calculations.calculate(operation, column_name) + construct_relation_for_association_calculations.calculate(operation, column_name, options) else - perform_calculation(operation, column_name) + perform_calculation(operation, column_name, options) end end @@ -180,7 +191,9 @@ module ActiveRecord eager_loading? || (includes_values.present? && (column_name || references_eager_loaded_tables?)) end - def perform_calculation(operation, column_name) + def perform_calculation(operation, column_name, options = {}) + # TODO: Remove options argument as soon we remove support to + # activerecord-deprecated_finders. operation = operation.to_s.downcase # If #count is used with #distinct / #uniq it is considered distinct. (eg. relation.distinct.count) @@ -311,7 +324,9 @@ module ActiveRecord } key = key.first if key.size == 1 key = key_records[key] if associated - [key, type_cast_calculated_value(row[aggregate_alias], column_for(column_name), operation)] + + column_type = calculated_data.column_types.fetch(aggregate_alias) { column_for(column_name) } + [key, type_cast_calculated_value(row[aggregate_alias], column_type, operation)] end] end diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb index 1e15bddcdf..21beed332f 100644 --- a/activerecord/lib/active_record/relation/delegation.rb +++ b/activerecord/lib/active_record/relation/delegation.rb @@ -1,3 +1,4 @@ +require 'set' require 'active_support/concern' require 'active_support/deprecation' @@ -36,7 +37,14 @@ module ActiveRecord # may vary depending on the klass of a relation, so we create a subclass of Relation # for each different klass, and the delegations are compiled into that subclass only. - delegate :to_xml, :to_yaml, :length, :collect, :map, :each, :all?, :include?, :to_ary, :to => :to_a + BLACKLISTED_ARRAY_METHODS = [ + :compact!, :flatten!, :reject!, :reverse!, :rotate!, :map!, + :shuffle!, :slice!, :sort!, :sort_by!, :delete_if, + :keep_if, :pop, :shift, :delete_at, :compact + ].to_set # :nodoc: + + delegate :to_xml, :to_yaml, :length, :collect, :map, :each, :all?, :include?, :to_ary, to: :to_a + delegate :table_name, :quoted_table_name, :primary_key, :quoted_primary_key, :connection, :columns_hash, :to => :klass @@ -64,7 +72,7 @@ module ActiveRecord RUBY else define_method method do |*args, &block| - scoping { @klass.send(method, *args, &block) } + scoping { @klass.public_send(method, *args, &block) } end end end @@ -83,13 +91,10 @@ module ActiveRecord def method_missing(method, *args, &block) if @klass.respond_to?(method) self.class.delegate_to_scoped_klass(method) - scoping { @klass.send(method, *args, &block) } - elsif array_delegable?(method) - self.class.delegate method, :to => :to_a - to_a.send(method, *args, &block) + scoping { @klass.public_send(method, *args, &block) } elsif arel.respond_to?(method) self.class.delegate method, :to => :arel - arel.send(method, *args, &block) + arel.public_send(method, *args, &block) else super end @@ -109,30 +114,24 @@ module ActiveRecord end def respond_to?(method, include_private = false) - super || array_delegable?(method) || - @klass.respond_to?(method, include_private) || + super || @klass.respond_to?(method, include_private) || + array_delegable?(method) || arel.respond_to?(method, include_private) end protected def array_delegable?(method) - defined = Array.method_defined?(method) - if defined && method.to_s.ends_with?('!') - ActiveSupport::Deprecation.warn( - "Association will no longer delegate #{method} to #to_a as of Rails 4.2. You instead must first call #to_a on the association to expose the array to be acted on." - ) - end - defined + Array.method_defined?(method) && BLACKLISTED_ARRAY_METHODS.exclude?(method) end def method_missing(method, *args, &block) if @klass.respond_to?(method) - scoping { @klass.send(method, *args, &block) } + scoping { @klass.public_send(method, *args, &block) } elsif array_delegable?(method) - to_a.send(method, *args, &block) + to_a.public_send(method, *args, &block) elsif arel.respond_to?(method) - arel.send(method, *args, &block) + arel.public_send(method, *args, &block) else super end diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index d91d6367a3..3963f2b3e0 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -384,7 +384,7 @@ module ActiveRecord @records.last else @last ||= - if offset_value || limit_value + if limit_value to_a.last else reverse_order.limit(1).to_a.first diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index c60cd27a83..1252af7635 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -55,9 +55,9 @@ module ActiveRecord # # For polymorphic relationships, find the foreign key and type: # PriceEstimate.where(estimate_of: treasure) - if klass && value.is_a?(Base) && reflection = klass.reflect_on_association(column.to_sym) - if reflection.polymorphic? - queries << build(table[reflection.foreign_type], value.class.base_class) + 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 @@ -67,6 +67,18 @@ module ActiveRecord 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 + end + def self.references(attributes) attributes.map do |key, value| if value.is_a?(Hash) diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index b6a7c25b4b..3d0709266a 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -341,13 +341,19 @@ module ActiveRecord # User.where(name: "John", active: true).unscope(where: :name) # == User.where(active: true) # - # Note that this method is more generalized than ActiveRecord::SpawnMethods#except - # because #except will only affect a particular relation's values. It won't wipe - # the order, grouping, etc. when that relation is merged. For example: + # This method is similar to <tt>except</tt>, but unlike + # <tt>except</tt>, it persists across merges: # - # Post.comments.except(:order) + # User.order('email').merge(User.except(:order)) + # == User.order('email') + # + # User.order('email').merge(User.unscope(:order)) + # == User.all + # + # This means it can be used in association definitions: + # + # has_many :comments, -> { unscope where: :trashed } # - # will still have an order if it comes from the default_scope on Comment. def unscope(*args) check_if_method_has_arguments!(:unscope, args) spawn.unscope!(*args) @@ -355,6 +361,7 @@ module ActiveRecord def unscope!(*args) # :nodoc: args.flatten! + self.unscope_values += args args.each do |scope| case scope @@ -420,7 +427,7 @@ module ActiveRecord # === string # # A single string, without additional arguments, is passed to the query - # constructor as a SQL fragment, and used in the where clause of the query. + # constructor as an SQL fragment, and used in the where clause of the query. # # Client.where("orders_count = '2'") # # SELECT * from clients where orders_count = '2'; @@ -552,9 +559,9 @@ module ActiveRecord # Allows you to change a previously set where condition for a given attribute, instead of appending to that condition. # - # Post.where(trashed: true).where(trashed: false) #=> WHERE `trashed` = 1 AND `trashed` = 0 - # Post.where(trashed: true).rewhere(trashed: false) #=> WHERE `trashed` = 0 - # Post.where(active: true).where(trashed: true).rewhere(trashed: false) #=> WHERE `active` = 1 AND `trashed` = 0 + # Post.where(trashed: true).where(trashed: false) # => WHERE `trashed` = 1 AND `trashed` = 0 + # Post.where(trashed: true).rewhere(trashed: false) # => WHERE `trashed` = 0 + # Post.where(active: true).where(trashed: true).rewhere(trashed: false) # => WHERE `active` = 1 AND `trashed` = 0 # # This is short-hand for unscope(where: conditions.keys).where(conditions). Note that unlike reorder, we're only unscoping # the named conditions -- not the entire where statement. @@ -624,12 +631,11 @@ module ActiveRecord self end - # Returns a chainable relation with zero records, specifically an - # instance of the <tt>ActiveRecord::NullRelation</tt> class. + # Returns a chainable relation with zero records. # - # The returned <tt>ActiveRecord::NullRelation</tt> inherits from Relation and implements the - # Null Object pattern. It is an object with defined null behavior and always returns an empty - # array of records without querying the database. + # The returned relation implements the Null Object pattern. It is an + # object with defined null behavior and always returns an empty array of + # records without querying the database. # # Any subsequent condition chained to the returned relation will continue # generating an empty relation and will not fire any query to the database. @@ -649,7 +655,7 @@ module ActiveRecord # when 'Reviewer' # Post.published # when 'Bad User' - # Post.none # => returning [] instead breaks the previous code + # Post.none # It can't be chained if [] is returned. # end # end # @@ -701,7 +707,7 @@ module ActiveRecord # Specifies table from which the records will be fetched. For example: # # Topic.select('title').from('posts') - # #=> SELECT title FROM posts + # # => SELECT title FROM posts # # Can accept other relation objects. For example: # @@ -976,8 +982,10 @@ module ActiveRecord end def build_select(arel, selects) - unless selects.empty? + if !selects.empty? arel.project(*selects) + elsif from_value + arel.project(Arel.star) else arel.project(@klass.arel_table[Arel.star]) end diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index b55af692d6..7ebe9dfec0 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -48,10 +48,18 @@ module ActiveRecord def build_relation(klass, table, attribute, value) #:nodoc: if reflection = klass.reflect_on_association(attribute) attribute = reflection.foreign_key - value = value.attributes[reflection.primary_key_column.name] + value = value.attributes[reflection.primary_key_column.name] unless value.nil? end - column = klass.columns_hash[attribute.to_s] + attribute_name = attribute.to_s + + # the attribute may be an aliased attribute + if klass.attribute_aliases[attribute_name] + attribute = klass.attribute_aliases[attribute_name] + attribute_name = attribute.to_s + end + + column = klass.columns_hash[attribute_name] value = klass.connection.type_cast(value, column) value = value.to_s[0, column.limit] if value && column.limit && column.text? @@ -166,11 +174,11 @@ module ActiveRecord # WHERE title = 'My Post' | # | # | # User 2 does the same thing and also - # | # infers that his title is unique. + # | # infers that their title is unique. # | SELECT * FROM comments # | WHERE title = 'My Post' # | - # # User 1 inserts his comment. | + # # User 1 inserts their comment. | # INSERT INTO comments | # (title, content) VALUES | # ('My Post', 'hi!') | @@ -196,7 +204,7 @@ module ActiveRecord # exception. You can either choose to let this error propagate (which # will result in the default Rails exception page being shown), or you # can catch it and restart the transaction (e.g. by telling the user - # that the title already exists, and asking him to re-enter the title). + # that the title already exists, and asking them to re-enter the title). # This technique is also known as # {optimistic concurrency control}[http://en.wikipedia.org/wiki/Optimistic_concurrency_control]. # diff --git a/activerecord/lib/active_record/version.rb b/activerecord/lib/active_record/version.rb index de5fd05468..863c3ebe4d 100644 --- a/activerecord/lib/active_record/version.rb +++ b/activerecord/lib/active_record/version.rb @@ -1,7 +1,7 @@ module ActiveRecord # Returns the version of the currently loaded ActiveRecord as a Gem::Version def self.version - Gem::Version.new "4.1.0.beta" + Gem::Version.new "4.1.0.beta1" end module VERSION #:nodoc: |