diff options
Diffstat (limited to 'activerecord/lib/active_record')
72 files changed, 1158 insertions, 548 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 6222bfe903..7ec7eb1b24 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -717,9 +717,9 @@ module ActiveRecord # == Eager loading of associations # # Eager loading is a way to find objects of a certain class and a number of named associations. - # This is one of the easiest ways of to prevent the dreaded 1+N problem in which fetching 100 + # This is one of the easiest ways of to prevent the dreaded N+1 problem in which fetching 100 # posts that each need to display their author triggers 101 database queries. Through the - # use of eager loading, the 101 queries can be reduced to 2. + # use of eager loading, the number of queries will be reduced from 101 to 2. # # class Post < ActiveRecord::Base # belongs_to :author @@ -1309,6 +1309,10 @@ module ActiveRecord # that is the inverse of this <tt>has_one</tt> association. Does not work in combination # with <tt>:through</tt> or <tt>:as</tt> options. # See ActiveRecord::Associations::ClassMethods's overview on Bi-directional associations for more detail. + # [:required] + # When set to +true+, the association will also have its presence validated. + # This will validate the association itself, not the id. You can use + # +:inverse_of+ to avoid an extra query during validation. # # Option examples: # has_one :credit_card, dependent: :destroy # destroys the associated credit card @@ -1320,6 +1324,7 @@ module ActiveRecord # has_one :boss, readonly: :true # has_one :club, through: :membership # has_one :primary_address, -> { where primary: true }, through: :addressables, source: :addressable + # has_one :credit_card, required: true def has_one(name, scope = nil, options = {}) reflection = Builder::HasOne.build(self, name, scope, options) Reflection.add_reflection self, name, reflection @@ -1421,6 +1426,10 @@ module ActiveRecord # object that is the inverse of this <tt>belongs_to</tt> association. Does not work in # combination with the <tt>:polymorphic</tt> options. # See ActiveRecord::Associations::ClassMethods's overview on Bi-directional associations for more detail. + # [:required] + # When set to +true+, the association will also have its presence validated. + # This will validate the association itself, not the id. You can use + # +:inverse_of+ to avoid an extra query during validation. # # Option examples: # belongs_to :firm, foreign_key: "client_of" @@ -1433,6 +1442,7 @@ module ActiveRecord # belongs_to :post, counter_cache: true # belongs_to :company, touch: true # belongs_to :company, touch: :employees_last_updated_at + # belongs_to :company, required: true def belongs_to(name, scope = nil, options = {}) reflection = Builder::BelongsTo.build(self, name, scope, options) Reflection.add_reflection self, name, reflection @@ -1577,7 +1587,7 @@ module ActiveRecord scope = nil end - habtm_reflection = ActiveRecord::Reflection::HasAndBelongsToManyReflection.new(:has_and_belongs_to_many, name, scope, options, self) + habtm_reflection = ActiveRecord::Reflection::HasAndBelongsToManyReflection.new(name, scope, options, self) builder = Builder::HasAndBelongsToMany.new name, self, options diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index f085fd1cfd..947d61ee7b 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -36,6 +36,7 @@ module ActiveRecord::Associations::Builder reflection = builder.build(model) define_accessors model, reflection define_callbacks model, reflection + define_validations model, reflection builder.define_extensions model reflection end @@ -85,7 +86,11 @@ module ActiveRecord::Associations::Builder end def self.define_callbacks(model, reflection) - add_before_destroy_callbacks(model, reflection) if reflection.options[:dependent] + if dependent = reflection.options[:dependent] + check_dependent_options(dependent) + add_destroy_callbacks(model, reflection) + end + Association.extensions.each do |extension| extension.build model, reflection end @@ -120,17 +125,23 @@ module ActiveRecord::Associations::Builder CODE end + def self.define_validations(model, reflection) + # noop + end + def self.valid_dependent_options 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]}" + def self.check_dependent_options(dependent) + unless valid_dependent_options.include? dependent + raise ArgumentError, "The :dependent option must be one of #{valid_dependent_options}, but is :#{dependent}" end + end + def self.add_destroy_callbacks(model, reflection) name = reflection.name model.before_destroy lambda { |o| o.association(name).handle_dependency } end diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index 3998aca23e..954ea3878a 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -107,5 +107,10 @@ module ActiveRecord::Associations::Builder model.after_touch callback model.after_destroy callback end + + def self.add_destroy_callbacks(model, reflection) + name = reflection.name + model.after_destroy lambda { |o| o.association(name).handle_dependency } + end end end diff --git a/activerecord/lib/active_record/associations/builder/has_one.rb b/activerecord/lib/active_record/associations/builder/has_one.rb index a1f4f51664..c194c8ae9a 100644 --- a/activerecord/lib/active_record/associations/builder/has_one.rb +++ b/activerecord/lib/active_record/associations/builder/has_one.rb @@ -16,7 +16,7 @@ module ActiveRecord::Associations::Builder private - def self.add_before_destroy_callbacks(model, reflection) + def self.add_destroy_callbacks(model, reflection) super unless reflection.options[:through] end end diff --git a/activerecord/lib/active_record/associations/builder/singular_association.rb b/activerecord/lib/active_record/associations/builder/singular_association.rb index e655c389a6..17f36acf40 100644 --- a/activerecord/lib/active_record/associations/builder/singular_association.rb +++ b/activerecord/lib/active_record/associations/builder/singular_association.rb @@ -3,7 +3,7 @@ module ActiveRecord::Associations::Builder class SingularAssociation < Association #:nodoc: def valid_options - super + [:remote, :dependent, :primary_key, :inverse_of] + super + [:remote, :dependent, :primary_key, :inverse_of, :required] end def self.define_accessors(model, reflection) @@ -27,5 +27,12 @@ module ActiveRecord::Associations::Builder end CODE end + + def self.define_validations(model, reflection) + super + if reflection.options[:required] + model.validates_presence_of reflection.name + 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 477888228d..2a97d0ed31 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -41,6 +41,14 @@ module ActiveRecord end end + def empty? + if has_cached_counter? + size.zero? + else + super + end + end + private # Returns the number of records in this collection. @@ -80,10 +88,14 @@ module ActiveRecord end def update_counter(difference, reflection = reflection()) + update_counter_in_database(difference, reflection) + update_counter_in_memory(difference, reflection) + end + + def update_counter_in_database(difference, reflection = reflection()) if has_cached_counter?(reflection) counter = cached_counter_attribute_name(reflection) owner.class.update_counters(owner.id, counter => difference) - update_counter_in_memory(difference, reflection) end end @@ -107,6 +119,10 @@ module ActiveRecord # Hence this method. def inverse_updates_counter_cache?(reflection = reflection()) counter_name = cached_counter_attribute_name(reflection) + inverse_updates_counter_named?(counter_name, reflection) + end + + def inverse_updates_counter_named?(counter_name, reflection = reflection()) reflection.klass._reflections.values.any? { |inverse_reflection| :belongs_to == inverse_reflection.macro && inverse_reflection.counter_cache_column == counter_name 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 af38f2f6dd..007e3bc555 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -63,6 +63,15 @@ module ActiveRecord end save_through_record(record) + if has_cached_counter? && !through_reflection_updates_counter_cache? + ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc) + 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}. + MESSAGE + update_counter_in_database(1) + end record end @@ -217,6 +226,11 @@ module ActiveRecord def invertible_for?(record) false end + + def through_reflection_updates_counter_cache? + counter_name = cached_counter_attribute_name + inverse_updates_counter_named?(counter_name, through_reflection) + end end end end diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index fbb4551b22..ec5c189cd3 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -131,7 +131,6 @@ module ActiveRecord def instantiate(result_set, aliases) primary_key = aliases.column_alias(join_root, join_root.primary_key) - type_caster = result_set.column_type primary_key seen = Hash.new { |h,parent_klass| h[parent_klass] = Hash.new { |i,parent_id| @@ -144,8 +143,7 @@ module ActiveRecord column_aliases = aliases.column_aliases join_root result_set.each { |row_hash| - primary_id = type_caster.type_cast_from_database row_hash[primary_key] - parent = parents[primary_id] ||= join_root.instantiate(row_hash, column_aliases) + 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) } diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb index da8eb10dc6..6d38224830 100644 --- a/activerecord/lib/active_record/attribute.rb +++ b/activerecord/lib/active_record/attribute.rb @@ -1,20 +1,29 @@ module ActiveRecord class Attribute # :nodoc: class << self - def from_database(value, type) - FromDatabase.new(value, type) + def from_database(name, value, type) + FromDatabase.new(name, value, type) end - def from_user(value, type) - FromUser.new(value, type) + def from_user(name, value, type) + FromUser.new(name, value, type) + end + + def null(name) + Null.new(name) + end + + def uninitialized(name, type) + Uninitialized.new(name, type) end end - attr_reader :value_before_type_cast, :type + attr_reader :name, :value_before_type_cast, :type # This method should not be called directly. # Use #from_database or #from_user - def initialize(value_before_type_cast, type) + def initialize(name, value_before_type_cast, type) + @name = name @value_before_type_cast = value_before_type_cast @type = type end @@ -37,10 +46,22 @@ module ActiveRecord type.changed_in_place?(old_value, value) end + def with_value_from_user(value) + self.class.from_user(name, value, type) + end + + def with_value_from_database(value) + self.class.from_database(name, value, type) + end + def type_cast raise NotImplementedError end + def initialized? + true + end + protected def initialize_dup(other) @@ -61,15 +82,39 @@ module ActiveRecord end end - class Null # :nodoc: - class << self - attr_reader :value, :value_before_type_cast, :value_for_database + class Null < Attribute # :nodoc: + def initialize(name) + super(name, nil, Type::Value.new) + end + + def value + nil + end + + def with_value_from_database(value) + raise ActiveModel::MissingAttributeError, "can't write unknown attribute `#{name}`" + end + alias_method :with_value_from_user, :with_value_from_database + end + + class Uninitialized < Attribute # :nodoc: + def initialize(name, type) + super(name, nil, type) + end - def changed_from?(*) - false + def value + if block_given? + yield name end - alias changed_in_place_from? changed_from? + end + + def value_for_database + end + + def initialized? + false end end + private_constant :FromDatabase, :FromUser, :Null, :Uninitialized end end diff --git a/activerecord/lib/active_record/attribute_decorators.rb b/activerecord/lib/active_record/attribute_decorators.rb index 5745bbe0e3..5b96623b6e 100644 --- a/activerecord/lib/active_record/attribute_decorators.rb +++ b/activerecord/lib/active_record/attribute_decorators.rb @@ -26,7 +26,7 @@ module ActiveRecord def add_user_provided_columns(*) super.map do |column| - decorated_type = attribute_type_decorations.apply(self, column.name, column.cast_type) + decorated_type = attribute_type_decorations.apply(column.name, column.cast_type) column.with_type(decorated_type) end end @@ -43,8 +43,8 @@ module ActiveRecord TypeDecorator.new(@decorations.merge(*args)) end - def apply(context, name, type) - decorations = decorators_for(context, name, type) + def apply(name, type) + decorations = decorators_for(name, type) decorations.inject(type) do |new_type, block| block.call(new_type) end @@ -52,13 +52,13 @@ module ActiveRecord private - def decorators_for(context, name, type) - matching(context, name, type).map(&:last) + def decorators_for(name, type) + matching(name, type).map(&:last) end - def matching(context, name, type) + def matching(name, type) @decorations.values.select do |(matcher, _)| - context.instance_exec(name, type, &matcher) + matcher.call(name, type) end end end diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index 51f6a009db..1cdb530815 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -73,7 +73,7 @@ module ActiveRecord # accessors, mutators and query methods. def define_attribute_methods # :nodoc: return false if @attribute_methods_generated - # Use a mutex; we don't want two thread simultaneously trying to define + # Use a mutex; we don't want two threads simultaneously trying to define # attribute methods. generated_attribute_methods.synchronize do return false if @attribute_methods_generated @@ -202,8 +202,8 @@ module ActiveRecord if column.nil? ActiveSupport::Deprecation.warn(<<-MESSAGE.strip_heredoc) `column_for_attribute` will return a null object for non-existent columns - in Rails 5.0. If you would like to continue to receive `nil`, you should - instead call `model.class.columns_hash[name]` + in Rails 5.0. Use `has_attribute?` if you need to check for an + attribute's existence. MESSAGE end column @@ -251,7 +251,7 @@ module ActiveRecord # person.has_attribute?('age') # => true # person.has_attribute?(:nothing) # => false def has_attribute?(attr_name) - @attributes.include?(attr_name.to_s) + @attributes.key?(attr_name.to_s) end # Returns an array of names for the attributes available on this object. @@ -386,7 +386,7 @@ module ActiveRecord def attribute_method?(attr_name) # :nodoc: # We check defined? because Syck calls respond_to? before actually calling initialize. - defined?(@attributes) && @attributes.include?(attr_name) + defined?(@attributes) && @attributes.key?(attr_name) end private diff --git a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb index 9ee9a7815f..fd61febd57 100644 --- a/activerecord/lib/active_record/attribute_methods/before_type_cast.rb +++ b/activerecord/lib/active_record/attribute_methods/before_type_cast.rb @@ -57,7 +57,7 @@ module ActiveRecord # task.attributes_before_type_cast # # => {"id"=>nil, "title"=>nil, "is_done"=>true, "completed_on"=>"2012-10-21", "created_at"=>nil, "updated_at"=>nil} def attributes_before_type_cast - @attributes.each_with_object({}) { |(k, v), h| h[k] = v.value_before_type_cast } + @attributes.values_before_type_cast end private diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb index e1a86fd3aa..b58295a106 100644 --- a/activerecord/lib/active_record/attribute_methods/dirty.rb +++ b/activerecord/lib/active_record/attribute_methods/dirty.rb @@ -34,7 +34,7 @@ module ActiveRecord # <tt>reload</tt> the record and clears changed attributes. def reload(*) super.tap do - reset_changes + clear_changes_information end end @@ -64,7 +64,7 @@ module ActiveRecord store_original_raw_attributes end - def reset_changes + def clear_changes_information super original_raw_attributes.clear end diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb index 1c81a5b71b..cadad60ddd 100644 --- a/activerecord/lib/active_record/attribute_methods/primary_key.rb +++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb @@ -83,12 +83,9 @@ module ActiveRecord end def get_primary_key(base_name) #:nodoc: - return 'id' if base_name.blank? - - case primary_key_prefix_type - when :table_name + if base_name && primary_key_prefix_type == :table_name base_name.foreign_key(false) - when :table_name_with_underscore + elsif base_name && primary_key_prefix_type == :table_name_with_underscore base_name.foreign_key else if ActiveRecord::Base != self && table_exists? diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index 8c1cc128f7..10869dfc1e 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -81,17 +81,10 @@ module ActiveRecord # 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) + def read_attribute(attr_name, &block) name = attr_name.to_s - @attributes.fetch(name) { - if name == 'id' - return read_attribute(self.class.primary_key) - elsif block_given? && self.class.columns_hash.key?(name) - return yield(name) - else - return nil - end - }.value + name = self.class.primary_key if name == 'id' + @attributes.fetch_value(name, &block) end private diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb index 734d94865a..264ce2bdfa 100644 --- a/activerecord/lib/active_record/attribute_methods/serialization.rb +++ b/activerecord/lib/active_record/attribute_methods/serialization.rb @@ -37,7 +37,12 @@ module ActiveRecord # serialize :preferences, Hash # end def serialize(attr_name, class_name_or_coder = Object) - coder = if [:load, :dump].all? { |x| class_name_or_coder.respond_to?(x) } + # When ::JSON is used, force it to go through the Active Support JSON encoder + # to ensure special objects (e.g. Active Record models) are dumped correctly + # using the #as_json hook. + coder = if class_name_or_coder == ::JSON + Coders::JSON + elsif [:load, :dump].all? { |x| class_name_or_coder.respond_to?(x) } class_name_or_coder else Coders::YAMLColumn.new(class_name_or_coder) 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 5f1dc8bc9f..f439bd1ffe 100644 --- a/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb +++ b/activerecord/lib/active_record/attribute_methods/time_zone_conversion.rb @@ -33,15 +33,25 @@ module ActiveRecord class_attribute :skip_time_zone_conversion_for_attributes, instance_writer: false self.skip_time_zone_conversion_for_attributes = [] - - matcher = ->(name, type) { create_time_zone_conversion_attribute?(name, type) } - decorate_matching_attribute_types(matcher, :_time_zone_conversion) do |type| - TimeZoneConverter.new(type) - end end module ClassMethods private + + def inherited(subclass) + # We need to apply this decorator here, rather than on module inclusion. The closure + # created by the matcher would otherwise evaluate for `ActiveRecord::Base`, not the + # sub class being decorated. As such, changes to `time_zone_aware_attributes`, or + # `skip_time_zone_conversion_for_attributes` would not be picked up. + subclass.class_eval do + matcher = ->(name, type) { create_time_zone_conversion_attribute?(name, type) } + decorate_matching_attribute_types(matcher, :_time_zone_conversion) do |type| + TimeZoneConverter.new(type) + end + end + super + end + def create_time_zone_conversion_attribute?(name, cast_type) time_zone_aware_attributes && !self.skip_time_zone_conversion_for_attributes.include?(name.to_sym) && diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 246a2cd8ba..b3c8209a74 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -69,16 +69,11 @@ module ActiveRecord def write_attribute_with_type_cast(attr_name, value, should_type_cast) attr_name = attr_name.to_s attr_name = self.class.primary_key if attr_name == 'id' && self.class.primary_key - type = type_for_attribute(attr_name) - - unless has_attribute?(attr_name) || self.class.columns_hash.key?(attr_name) - raise ActiveModel::MissingAttributeError, "can't write unknown attribute `#{attr_name}'" - end if should_type_cast - @attributes[attr_name] = Attribute.from_user(value, type) + @attributes.write_from_user(attr_name, value) else - @attributes[attr_name] = Attribute.from_database(value, type) + @attributes.write_from_database(attr_name, value) end value diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb index ed2500a675..98ac63c7e1 100644 --- a/activerecord/lib/active_record/attribute_set.rb +++ b/activerecord/lib/active_record/attribute_set.rb @@ -1,27 +1,49 @@ +require 'active_record/attribute_set/builder' + module ActiveRecord class AttributeSet # :nodoc: - delegate :[], :[]=, :fetch, :include?, :keys, :each_with_object, to: :attributes + delegate :keys, to: :initialized_attributes def initialize(attributes) @attributes = attributes end + def [](name) + attributes[name] || Attribute.null(name) + end + + def values_before_type_cast + attributes.transform_values(&:value_before_type_cast) + end + def to_hash - attributes.each_with_object({}) { |(k, v), h| h[k] = v.value } + initialized_attributes.transform_values(&:value) end alias_method :to_h, :to_hash + def key?(name) + attributes.key?(name) && self[name].initialized? + end + + def fetch_value(name, &block) + self[name].value(&block) + end + + def write_from_database(name, value) + attributes[name] = self[name].with_value_from_database(value) + end + + def write_from_user(name, value) + attributes[name] = self[name].with_value_from_user(value) + end + def freeze @attributes.freeze super end def initialize_dup(_) - @attributes = attributes.dup - attributes.each do |key, attr| - attributes[key] = attr.dup - end - + @attributes = attributes.transform_values(&:dup) super end @@ -30,23 +52,26 @@ module ActiveRecord super end - class Builder # :nodoc: - def initialize(types) - @types = types + def reset(key) + if key?(key) + write_from_database(key, nil) end + end - def build_from_database(values, additional_types = {}) - attributes = Hash.new(Attribute::Null) - values.each_with_object(attributes) do |(name, value), hash| - type = additional_types.fetch(name, @types[name]) - hash[name] = Attribute.from_database(value, type) - end - AttributeSet.new(attributes) + def ensure_initialized(key) + unless self[key].initialized? + write_from_database(key, nil) end end protected attr_reader :attributes + + private + + def initialized_attributes + attributes.select { |_, attr| attr.initialized? } + end end end diff --git a/activerecord/lib/active_record/attribute_set/builder.rb b/activerecord/lib/active_record/attribute_set/builder.rb new file mode 100644 index 0000000000..1e146a07da --- /dev/null +++ b/activerecord/lib/active_record/attribute_set/builder.rb @@ -0,0 +1,32 @@ +module ActiveRecord + class AttributeSet # :nodoc: + class Builder # :nodoc: + attr_reader :types + + def initialize(types) + @types = types + end + + def build_from_database(values = {}, additional_types = {}) + attributes = build_attributes_from_values(values, additional_types) + add_uninitialized_attributes(attributes) + AttributeSet.new(attributes) + end + + private + + 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 + end + + def add_uninitialized_attributes(attributes) + types.except(*attributes.keys).each do |name, type| + attributes[name] = Attribute.uninitialized(name, type) + end + end + end + end +end diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb index 492d8f3560..890a1314d9 100644 --- a/activerecord/lib/active_record/attributes.rb +++ b/activerecord/lib/active_record/attributes.rb @@ -110,13 +110,12 @@ module ActiveRecord def clear_caches_calculated_from_columns @attributes_builder = nil - @column_defaults = nil @column_names = nil @column_types = nil @columns = nil @columns_hash = nil @content_columns = nil - @raw_column_defaults = nil + @default_attributes = nil end end end diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 662c99269e..64cc5b68cc 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -9,6 +9,7 @@ require 'active_support/core_ext/class/delegating_attributes' require 'active_support/core_ext/array/extract_options' require 'active_support/core_ext/hash/deep_merge' require 'active_support/core_ext/hash/slice' +require 'active_support/core_ext/hash/transform_values' require 'active_support/core_ext/string/behavior' require 'active_support/core_ext/kernel/singleton_class' require 'active_support/core_ext/module/introspection' @@ -219,25 +220,9 @@ module ActiveRecord #:nodoc: # # == Single table inheritance # - # Active Record allows inheritance by storing the name of the class in a column that by - # default is named "type" (can be changed by overwriting <tt>Base.inheritance_column</tt>). - # This means that an inheritance looking like this: - # - # class Company < ActiveRecord::Base; end - # class Firm < Company; end - # class Client < Company; end - # class PriorityClient < Client; end - # - # When you do <tt>Firm.create(name: "37signals")</tt>, this record will be saved in - # the companies table with type = "Firm". You can then fetch this row again using - # <tt>Company.where(name: '37signals').first</tt> and it will return a Firm object. - # - # If you don't have a type column defined in your table, single-table inheritance won't - # be triggered. In that case, it'll work just like normal subclasses with no special magic - # for differentiating between them or reloading the right type with find. - # - # Note, all the attributes for all the cases are kept in the same table. Read more: - # http://www.martinfowler.com/eaaCatalog/singleTableInheritance.html + # Active Record allows inheritance by storing the name of the class in a + # column that is named "type" by default. See ActiveRecord::Inheritance for + # more details. # # == Connection to multiple databases in different models # diff --git a/activerecord/lib/active_record/coders/json.rb b/activerecord/lib/active_record/coders/json.rb new file mode 100644 index 0000000000..75d3bfe625 --- /dev/null +++ b/activerecord/lib/active_record/coders/json.rb @@ -0,0 +1,13 @@ +module ActiveRecord + module Coders # :nodoc: + class JSON # :nodoc: + def self.dump(obj) + ActiveSupport::JSON.encode(obj) + end + + def self.load(json) + ActiveSupport::JSON.decode(json) unless json.nil? + end + end + end +end diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index ff92375820..eb88845913 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -9,12 +9,7 @@ module ActiveRecord # records are quoted as their primary key return value.quoted_id if value.respond_to?(:quoted_id) - # FIXME: The only case we get an object other than nil or a real column - # is `SchemaStatements#add_column` with a PG array that has a non-empty default - # value. Is this really the only case? Are we missing tests for other types? - # We should have a real column object passed (or nil) here, and check for that - # instead - if column.respond_to?(:cast_type) + if column value = column.cast_type.type_cast_for_database(value) end @@ -29,12 +24,7 @@ module ActiveRecord return value.id end - # FIXME: The only case we get an object other than nil or a real column - # is `SchemaStatements#add_column` with a PG array that has a non-empty default - # value. Is this really the only case? Are we missing tests for other types? - # We should have a real column object passed (or nil) here, and check for that - # instead - if column.respond_to?(:cast_type) + if column value = column.cast_type.type_cast_for_database(value) end @@ -66,7 +56,7 @@ module ActiveRecord # This works for mysql and mysql2 where table.column can be used to # resolve ambiguity. # - # We override this in the sqlite and postgresql adapters to use only + # We override this in the sqlite3 and postgresql adapters to use only # the column name (as per syntax requirements). def quote_table_name_for_assignment(table, attr) quote_table_name("#{table}.#{attr}") 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 47fe501752..adad6cd542 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -23,6 +23,8 @@ module ActiveRecord def visit_AlterTable(o) sql = "ALTER TABLE #{quote_table_name(o.name)} " sql << o.adds.map { |col| visit_AddColumn col }.join(' ') + sql << o.foreign_key_adds.map { |fk| visit_AddForeignKey fk }.join(' ') + sql << o.foreign_key_drops.map { |fk| visit_DropForeignKey fk }.join(' ') end def visit_ColumnDefinition(o) @@ -41,6 +43,21 @@ module ActiveRecord create_sql end + def visit_AddForeignKey(o) + sql = <<-SQL.strip_heredoc + ADD CONSTRAINT #{quote_column_name(o.name)} + FOREIGN KEY (#{quote_column_name(o.column)}) + REFERENCES #{quote_table_name(o.to_table)} (#{quote_column_name(o.primary_key)}) + SQL + sql << " #{action_sql('DELETE', o.on_delete)}" if o.on_delete + sql << " #{action_sql('UPDATE', o.on_update)}" if o.on_update + sql + end + + def visit_DropForeignKey(name) + "DROP CONSTRAINT #{quote_column_name(name)}" + end + def column_options(o) column_options = {} column_options[:null] = o.null unless o.null.nil? @@ -77,6 +94,7 @@ module ActiveRecord def quote_value(value, column) column.sql_type ||= type_to_sql(column.type, column.limit, column.precision, column.scale) + column.cast_type ||= type_for_column(column) @conn.quote(value, column) end @@ -84,6 +102,23 @@ module ActiveRecord def options_include_default?(options) options.include?(:default) && !(options[:null] == false && options[:default].nil?) end + + def action_sql(action, dependency) + case dependency + when :nullify then "ON #{action} SET NULL" + when :cascade then "ON #{action} CASCADE" + when :restrict then "ON #{action} RESTRICT" + else + raise ArgumentError, <<-MSG.strip_heredoc + '#{dependency}' is not supported for :on_update or :on_delete. + Supported values are: :nullify, :cascade, :restrict + MSG + end + end + + def type_for_column(column) + @conn.lookup_cast_type(column.sql_type) + end end end 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 a9b3e9cfb9..98e6795f10 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) #:nodoc: + class ColumnDefinition < Struct.new(:name, :type, :limit, :precision, :scale, :default, :null, :first, :after, :primary_key, :sql_type, :cast_type) #:nodoc: def primary_key? primary_key || type.to_sym == :primary_key @@ -25,6 +25,37 @@ module ActiveRecord class ChangeColumnDefinition < Struct.new(:column, :type, :options) #:nodoc: end + class ForeignKeyDefinition < Struct.new(:from_table, :to_table, :options) #:nodoc: + def name + options[:name] + end + + def column + options[:column] + end + + def primary_key + options[:primary_key] || default_primary_key + end + + def on_delete + options[:on_delete] + end + + def on_update + options[:on_update] + end + + def custom_primary_key? + options[:primary_key] != default_primary_key + end + + private + def default_primary_key + "id" + end + end + # Represents the schema of an SQL table in an abstract way. This class # provides methods for manipulating the schema representation. # @@ -303,14 +334,26 @@ module ActiveRecord class AlterTable # :nodoc: attr_reader :adds + attr_reader :foreign_key_adds + attr_reader :foreign_key_drops def initialize(td) @td = td @adds = [] + @foreign_key_adds = [] + @foreign_key_drops = [] end def name; @td.name; end + def add_foreign_key(to_table, options) + @foreign_key_adds << ForeignKeyDefinition.new(name, to_table, options) + end + + def drop_foreign_key(name) + @foreign_key_drops << name + end + def add_column(name, type, options) name = name.to_s type = type.to_sym 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 22823a8c58..5814c2b711 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -642,6 +642,115 @@ module ActiveRecord end alias :remove_belongs_to :remove_reference + # Returns an array of foreign keys for the given table. + # The foreign keys are represented as +ForeignKeyDefinition+ objects. + def foreign_keys(table_name) + raise NotImplementedError, "foreign_keys is not implemented" + end + + # Adds a new foreign key. +from_table+ is the table with the key column, + # +to_table+ contains the referenced primary key. + # + # The foreign key will be named after the following pattern: <tt>fk_rails_<identifier></tt>. + # +identifier+ is a 10 character long random string. A custom name can be specified with + # the <tt>:name</tt> option. + # + # ====== Creating a simple foreign key + # + # add_foreign_key :articles, :authors + # + # generates: + # + # ALTER TABLE "articles" ADD CONSTRAINT articles_author_id_fk FOREIGN KEY ("author_id") REFERENCES "authors" ("id") + # + # ====== Creating a foreign key on a specific column + # + # add_foreign_key :articles, :users, column: :author_id, primary_key: "lng_id" + # + # generates: + # + # ALTER TABLE "articles" ADD CONSTRAINT fk_rails_58ca3d3a82 FOREIGN KEY ("author_id") REFERENCES "users" ("lng_id") + # + # ====== Creating a cascading foreign key + # + # add_foreign_key :articles, :authors, on_delete: :cascade + # + # generates: + # + # ALTER TABLE "articles" ADD CONSTRAINT articles_author_id_fk FOREIGN KEY ("author_id") REFERENCES "authors" ("id") ON DELETE CASCADE + # + # The +options+ hash can include the following keys: + # [<tt>:column</tt>] + # The foreign key column name on +from_table+. Defaults to <tt>to_table.singularize + "_id"</tt> + # [<tt>:primary_key</tt>] + # The primary key column name on +to_table+. Defaults to +id+. + # [<tt>:name</tt>] + # The constraint name. Defaults to <tt>fk_rails_<identifier></tt>. + # [<tt>:on_delete</tt>] + # Action that happens <tt>ON DELETE</tt>. Valid values are +:nullify+, +:cascade:+ and +:restrict+ + # [<tt>:on_update</tt>] + # Action that happens <tt>ON UPDATE</tt>. Valid values are +:nullify+, +:cascade:+ and +:restrict+ + def add_foreign_key(from_table, to_table, options = {}) + return unless supports_foreign_keys? + + options[:column] ||= foreign_key_column_for(to_table) + + options = { + column: options[:column], + primary_key: options[:primary_key], + name: foreign_key_name(from_table, options), + on_delete: options[:on_delete], + on_update: options[:on_update] + } + at = create_alter_table from_table + at.add_foreign_key to_table, options + + execute schema_creation.accept(at) + end + + # Removes the given foreign key from the table. + # + # Removes the foreign key on +accounts.branch_id+. + # + # remove_foreign_key :accounts, :branches + # + # Removes the foreign key on +accounts.owner_id+. + # + # remove_foreign_key :accounts, column: :owner_id + # + # Removes the foreign key named +special_fk_name+ on the +accounts+ table. + # + # remove_foreign_key :accounts, name: :special_fk_name + # + def remove_foreign_key(from_table, options_or_to_table = {}) + return unless supports_foreign_keys? + + if options_or_to_table.is_a?(Hash) + options = options_or_to_table + else + options = { column: foreign_key_column_for(options_or_to_table) } + end + + fk_name_to_delete = options.fetch(:name) do + fk_to_delete = foreign_keys(from_table).detect {|fk| fk.column == options[:column] } + + if fk_to_delete + fk_to_delete.name + else + raise ArgumentError, "Table '#{from_table}' has no foreign key on column '#{options[:column]}'" + end + end + + at = create_alter_table from_table + at.drop_foreign_key fk_name_to_delete + + execute schema_creation.accept(at) + end + + def foreign_key_column_for(table_name) # :nodoc: + "#{table_name.to_s.singularize}_id" + end + def dump_schema_information #:nodoc: sm_table = ActiveRecord::Migrator.schema_migrations_table_name @@ -852,6 +961,12 @@ module ActiveRecord def create_alter_table(name) AlterTable.new create_table_definition(name, false, {}) end + + def foreign_key_name(table_name, options) # :nodoc: + options.fetch(:name) do + "fk_rails_#{SecureRandom.hex(5)}" + end + 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 cc494a7f40..f8c054eb69 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -233,6 +233,11 @@ module ActiveRecord false end + # Does this adapter support creating foreign key constraints? + def supports_foreign_keys? + false + end + # This is meant to be implemented by the adapters that support extensions def disable_extension(name) end @@ -370,12 +375,12 @@ module ActiveRecord Column.new(name, default, cast_type, sql_type, null) end - protected - def lookup_cast_type(sql_type) # :nodoc: type_map.lookup(sql_type) end + protected + def initialize_type_map(m) # :nodoc: register_class_with_limit m, %r(boolean)i, Type::Boolean register_class_with_limit m, %r(char)i, Type::String 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 3ef8878ad1..e5417a9556 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -12,6 +12,10 @@ module ActiveRecord private + def visit_DropForeignKey(name) + "DROP FOREIGN KEY #{name}" + end + def visit_TableDefinition(o) name = o.name create_sql = "CREATE#{' TEMPORARY' if o.temporary} TABLE #{quote_table_name(name)} " @@ -192,6 +196,10 @@ module ActiveRecord true end + def supports_foreign_keys? + true + end + def native_database_types NATIVE_DATABASE_TYPES end @@ -381,7 +389,7 @@ module ActiveRecord end def table_exists?(name) - return false unless name + return false unless name.present? return true if tables(nil, nil, name).any? name = name.to_s @@ -465,7 +473,7 @@ module ActiveRecord end def rename_index(table_name, old_name, new_name) - if (version[0] == 5 && version[1] >= 7) || version[0] >= 6 + if supports_rename_index? execute "ALTER TABLE #{quote_table_name(table_name)} RENAME INDEX #{quote_table_name(old_name)} TO #{quote_table_name(new_name)}" else super @@ -501,6 +509,34 @@ module ActiveRecord execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} ON #{quote_table_name(table_name)} (#{index_columns})#{index_options} #{index_algorithm}" end + def foreign_keys(table_name) + fk_info = select_all <<-SQL.strip_heredoc + SELECT fk.referenced_table_name as 'to_table' + ,fk.referenced_column_name as 'primary_key' + ,fk.column_name as 'column' + ,fk.constraint_name as 'name' + FROM information_schema.key_column_usage fk + WHERE fk.referenced_column_name is not null + AND fk.table_schema = '#{@config[:database]}' + AND fk.table_name = '#{table_name}' + SQL + + create_table_info = select_one("SHOW CREATE TABLE #{quote_table_name(table_name)}")["Create Table"] + + fk_info.map do |row| + options = { + column: row['column'], + name: row['name'], + primary_key: row['primary_key'] + } + + options[:on_update] = extract_foreign_key_action(create_table_info, row['name'], "UPDATE") + options[:on_delete] = extract_foreign_key_action(create_table_info, row['name'], "DELETE") + + ForeignKeyDefinition.new(table_name, row['to_table'], options) + end + end + # Maps logical Rails types to MySQL-specific data types. def type_to_sql(type, limit = nil, precision = nil, scale = nil) case type.to_s @@ -738,10 +774,22 @@ module ActiveRecord private + def version + @version ||= full_version.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.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 + def configure_connection variables = @config.fetch(:variables, {}).stringify_keys @@ -757,8 +805,8 @@ module ActiveRecord # Make MySQL reject illegal values rather than truncating or blanking them, see # http://dev.mysql.com/doc/refman/5.0/en/server-sql-mode.html#sqlmode_strict_all_tables # If the user has provided another value for sql_mode, don't replace it. - if strict_mode? && !variables.has_key?('sql_mode') - variables['sql_mode'] = 'STRICT_ALL_TABLES' + unless variables.has_key?('sql_mode') + variables['sql_mode'] = strict_mode? ? 'STRICT_ALL_TABLES' : '' end # NAMES does not have an equals sign, see @@ -779,6 +827,15 @@ module ActiveRecord # ...and send them all in one query @connection.query "SET #{encoding} #{variable_assignments}" end + + def extract_foreign_key_action(structure, name, action) # :nodoc: + if structure =~ /CONSTRAINT #{quote_column_name(name)} FOREIGN KEY .* REFERENCES .* ON #{action} (CASCADE|SET NULL|RESTRICT)/ + case $1 + when 'CASCADE'; :cascade + when 'SET NULL'; :nullify + end + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 0a14cdfe89..39d52e6349 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -269,8 +269,8 @@ module ActiveRecord super end - def version - @version ||= @connection.info[:version].scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i } + def full_version + @full_version ||= @connection.info[:version] end def set_field_encoding field_name diff --git a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb index ad07a46e51..a03bc28744 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql_adapter.rb @@ -470,9 +470,9 @@ module ActiveRecord rows end - # Returns the version of the connected MySQL server. - def version - @version ||= @connection.server_info.scan(/^(\d+)\.(\d+)\.(\d+)/).flatten.map { |v| v.to_i } + # Returns the full version of the connected MySQL server. + def full_version + @full_version ||= @connection.server_info end def set_field_encoding field_name diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/cast.rb b/activerecord/lib/active_record/connection_adapters/postgresql/cast.rb deleted file mode 100644 index a865c5c310..0000000000 --- a/activerecord/lib/active_record/connection_adapters/postgresql/cast.rb +++ /dev/null @@ -1,81 +0,0 @@ -module ActiveRecord - module ConnectionAdapters - module PostgreSQL - module Cast # :nodoc: - def point_to_string(point) # :nodoc: - "(#{number_for_point(point[0])},#{number_for_point(point[1])})" - end - - def number_for_point(number) - number.to_s.gsub(/\.0$/, '') - end - - def hstore_to_string(object, array_member = false) # :nodoc: - if Hash === object - string = object.map { |k, v| "#{escape_hstore(k)}=>#{escape_hstore(v)}" }.join(', ') - string = escape_hstore(string) if array_member - string - else - object - end - end - - def string_to_hstore(string) # :nodoc: - if string.nil? - nil - elsif String === string - Hash[string.scan(HstorePair).map { |k, v| - v = v.upcase == 'NULL' ? nil : v.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') - k = k.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') - [k, v] - }] - else - string - end - end - - def json_to_string(object) # :nodoc: - if Hash === object || Array === object - ActiveSupport::JSON.encode(object) - else - object - end - end - - def range_to_string(object) # :nodoc: - from = object.begin.respond_to?(:infinite?) && object.begin.infinite? ? '' : object.begin - to = object.end.respond_to?(:infinite?) && object.end.infinite? ? '' : object.end - "[#{from},#{to}#{object.exclude_end? ? ')' : ']'}" - end - - def string_to_json(string) # :nodoc: - if String === string - ActiveSupport::JSON.decode(string) - else - string - end - end - - private - - HstorePair = begin - quoted_string = /"[^"\\]*(?:\\.[^"\\]*)*"/ - unquoted_string = /(?:\\.|[^\s,])[^\s=,\\]*(?:\\.[^\s=,\\]*|=[^,>])*/ - /(#{quoted_string}|#{unquoted_string})\s*=>\s*(#{quoted_string}|#{unquoted_string})/ - end - - def escape_hstore(value) - if value.nil? - 'NULL' - else - if value == "" - '""' - else - '"%s"' % value.to_s.gsub(/(["\\])/, '\\\\\1') - end - end - end - end - end - end -end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb index 847fd4dded..37e5c3859c 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb @@ -1,11 +1,7 @@ -require 'active_record/connection_adapters/postgresql/cast' - module ActiveRecord module ConnectionAdapters # PostgreSQL-specific extensions to column definitions in a table. class PostgreSQLColumn < Column #:nodoc: - extend PostgreSQL::Cast - attr_accessor :array def initialize(name, default, cast_type, sql_type = nil, null = true, default_function = nil) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index 33a98b4fcb..d05ce61330 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -21,6 +21,7 @@ require 'active_record/connection_adapters/postgresql/oid/specialized_string' require 'active_record/connection_adapters/postgresql/oid/time' require 'active_record/connection_adapters/postgresql/oid/uuid' require 'active_record/connection_adapters/postgresql/oid/vector' +require 'active_record/connection_adapters/postgresql/oid/xml' require 'active_record/connection_adapters/postgresql/oid/type_map_initializer' diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb index 243ecd13cf..1dbb40ca1d 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/bit.rb @@ -19,6 +19,32 @@ module ActiveRecord value end end + + def type_cast_for_database(value) + Data.new(super) if value + end + + class Data + def initialize(value) + @value = value + end + + def to_s + value + end + + def binary? + /\A[01]*\Z/ === value + end + + def hex? + /\A[0-9A-F]*\Z/i === value + end + + protected + + attr_reader :value + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb index 26c5d3d78f..78ef94b912 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/float.rb @@ -7,6 +7,7 @@ module ActiveRecord def cast_value(value) case value + when ::Float then value when 'Infinity' then ::Float::INFINITY when '-Infinity' then -::Float::INFINITY when 'NaN' then ::Float::NAN diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb index 57b20477df..be4525c94f 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/hstore.rb @@ -10,16 +10,48 @@ module ActiveRecord end def type_cast_from_database(value) - ConnectionAdapters::PostgreSQLColumn.string_to_hstore(value) + if value.is_a?(::String) + ::Hash[value.scan(HstorePair).map { |k, v| + v = v.upcase == 'NULL' ? nil : v.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') + k = k.gsub(/\A"(.*)"\Z/m,'\1').gsub(/\\(.)/, '\1') + [k, v] + }] + else + value + end end def type_cast_for_database(value) - ConnectionAdapters::PostgreSQLColumn.hstore_to_string(value) + if value.is_a?(::Hash) + value.map { |k, v| "#{escape_hstore(k)}=>#{escape_hstore(v)}" }.join(', ') + else + value + end end def accessor ActiveRecord::Store::StringKeyedHashAccessor end + + private + + HstorePair = begin + quoted_string = /"[^"\\]*(?:\\.[^"\\]*)*"/ + unquoted_string = /(?:\\.|[^\s,])[^\s=,\\]*(?:\\.[^\s=,\\]*|=[^,>])*/ + /(#{quoted_string}|#{unquoted_string})\s*=>\s*(#{quoted_string}|#{unquoted_string})/ + end + + def escape_hstore(value) + if value.nil? + 'NULL' + else + if value == "" + '""' + else + '"%s"' % value.to_s.gsub(/(["\\])/, '\\\\\1') + end + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb index ab1165f301..e12ddd9901 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/json.rb @@ -10,11 +10,19 @@ module ActiveRecord end def type_cast_from_database(value) - ConnectionAdapters::PostgreSQLColumn.string_to_json(value) + if value.is_a?(::String) + ::ActiveSupport::JSON.decode(value) + else + super + end end def type_cast_for_database(value) - ConnectionAdapters::PostgreSQLColumn.json_to_string(value) + if value.is_a?(::Array) || value.is_a?(::Hash) + ::ActiveSupport::JSON.encode(value) + else + super + end end def accessor diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb index 9b6494867f..bac8b01d6b 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/point.rb @@ -25,11 +25,17 @@ module ActiveRecord def type_cast_for_database(value) if value.is_a?(::Array) - PostgreSQLColumn.point_to_string(value) + "(#{number_for_point(value[0])},#{number_for_point(value[1])})" else super end end + + private + + def number_for_point(number) + number.to_s.gsub(/\.0$/, '') + end end end 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 991cdd0913..ae967d5167 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -10,28 +10,10 @@ module ActiveRecord @type = type end - def extract_bounds(value) - from, to = value[1..-2].split(',') - { - from: (value[1] == ',' || from == '-infinity') ? @subtype.infinity(negative: true) : from, - to: (value[-2] == ',' || to == 'infinity') ? @subtype.infinity : to, - exclude_start: (value[0] == '('), - exclude_end: (value[-1] == ')') - } - end - - def infinity?(value) - value.respond_to?(:infinite?) && value.infinite? - end - def type_cast_for_schema(value) value.inspect.gsub('Infinity', '::Float::INFINITY') end - def type_cast_single(value) - infinity?(value) ? value : @subtype.type_cast_from_database(value) - end - def cast_value(value) return if value == 'empty' return value if value.is_a?(::Range) @@ -53,6 +35,40 @@ This is not reliable and will be removed in the future. end ::Range.new(from, to, extracted[:exclude_end]) end + + def type_cast_for_database(value) + if value.is_a?(::Range) + from = type_cast_single_for_database(value.begin) + to = type_cast_single_for_database(value.end) + "[#{from},#{to}#{value.exclude_end? ? ')' : ']'}" + else + super + end + end + + private + + def type_cast_single(value) + infinity?(value) ? value : @subtype.type_cast_from_database(value) + end + + def type_cast_single_for_database(value) + infinity?(value) ? '' : @subtype.type_cast_for_database(value) + end + + def extract_bounds(value) + from, to = value[1..-2].split(',') + { + from: (value[1] == ',' || from == '-infinity') ? @subtype.infinity(negative: true) : from, + to: (value[-2] == ',' || to == 'infinity') ? @subtype.infinity : to, + exclude_start: (value[0] == '('), + exclude_end: (value[-1] == ')') + } + end + + def infinity?(value) + value.respond_to?(:infinite?) && value.infinite? + end end end 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 b2a42e9ebb..2d2fede4e8 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 @@ -8,10 +8,6 @@ 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/uuid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb index 89728b0fe2..dd97393eac 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/uuid.rb @@ -3,12 +3,21 @@ 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 + def type :uuid end def type_cast(value) - value.presence + value.to_s[RFC_4122, 0] end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb new file mode 100644 index 0000000000..7323f12763 --- /dev/null +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/xml.rb @@ -0,0 +1,32 @@ +module ActiveRecord + module ConnectionAdapters + module PostgreSQL + module OID # :nodoc: + class Xml < Type::String # :nodoc: + def type + :xml + end + + def text? + false + end + + def type_cast_for_database(value) + return unless value + Data.new(super) + end + + class Data # :nodoc: + def initialize(value) + @value = value + end + + def to_s + @value + end + end + end + end + 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 4caed77952..cf5c8d288e 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -18,95 +18,18 @@ module ActiveRecord def quote(value, column = nil) #:nodoc: return super unless column - sql_type = type_to_sql(column.type, column.limit, column.precision, column.scale) - case value - when Range - if /range$/ =~ sql_type - "'#{PostgreSQLColumn.range_to_string(value)}'::#{sql_type}" - else - super - end - when Array - case sql_type - when 'point' then super(PostgreSQLColumn.point_to_string(value)) - when 'json' then super(PostgreSQLColumn.json_to_string(value)) - else - super(value, array_column(column)) - end - when Hash - case sql_type - when 'hstore' then super(PostgreSQLColumn.hstore_to_string(value), column) - when 'json' then super(PostgreSQLColumn.json_to_string(value), column) - else super - end when Float - if value.infinite? && column.type == :datetime - "'#{value.to_s.downcase}'" - elsif value.infinite? || value.nan? + if value.infinite? || value.nan? "'#{value.to_s}'" else super end - when Numeric - if sql_type == 'money' || [:string, :text].include?(column.type) - # Not truly string input, so doesn't require (or allow) escape string syntax. - "'#{value}'" - else - super - end - when String - case sql_type - when 'xml' then "xml '#{quote_string(value)}'" - when /^bit/ - case value - when /^[01]*$/ then "B'#{value}'" # Bit-string notation - when /^[0-9A-F]*$/i then "X'#{value}'" # Hexadecimal notation - end - else - super - end else super end end - def type_cast(value, column, array_member = false) - return super(value, column) unless column - - case value - when Range - if /range$/ =~ column.sql_type - PostgreSQLColumn.range_to_string(value) - else - super(value, column) - end - when NilClass - if column.array && array_member - 'NULL' - elsif column.array - value - else - super(value, column) - end - when Array - case column.sql_type - when 'point' then PostgreSQLColumn.point_to_string(value) - when 'json' then PostgreSQLColumn.json_to_string(value) - else - super(value, array_column(column)) - end - when Hash - case column.sql_type - when 'hstore' then PostgreSQLColumn.hstore_to_string(value, array_member) - when 'json' then PostgreSQLColumn.json_to_string(value) - else super(value, column) - end - else - super(value, column) - end - end - # Quotes strings for use in SQL input. def quote_string(s) #:nodoc: @connection.escape(s) @@ -160,43 +83,35 @@ module ActiveRecord private def _quote(value) - if value.is_a?(Type::Binary::Data) + case value + when Type::Binary::Data "'#{escape_bytea(value.to_s)}'" + when OID::Xml::Data + "xml '#{quote_string(value.to_s)}'" + when OID::Bit::Data + if value.binary? + "B'#{value}'" + elsif value.hex? + "X'#{value}'" + end else super end end def _type_cast(value) - if value.is_a?(Type::Binary::Data) + case value + when Type::Binary::Data # Return a bind param hash with format as binary. # See http://deveiate.org/code/pg/PGconn.html#method-i-exec_prepared-doc # for more information { value: value.to_s, format: 1 } + when OID::Xml::Data, OID::Bit::Data + value.to_s else super end end - - def array_column(column) - if column.array && !column.respond_to?(:cast_type) - Column.new('', nil, OID::Array.new(AdapterProxyType.new(column, self))) - else - column - end - end - - class AdapterProxyType < SimpleDelegator # :nodoc: - def initialize(column, adapter) - @column = column - @adapter = adapter - super(column) - end - - def type_cast_for_database(value) - @adapter.type_cast(value, @column) - end - end end end end 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 b2aeb3a058..e09672d239 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -31,6 +31,14 @@ module ActiveRecord super end end + + def type_for_column(column) + if column.array + @conn.lookup_cast_type("#{column.sql_type}[]") + else + super + end + end end module SchemaStatements @@ -375,8 +383,8 @@ module ActiveRecord end # Renames a table. - # Also renames a table's primary key sequence if the sequence name matches the - # Active Record default. + # Also renames a table's primary key sequence if the sequence name exists and + # matches the Active Record default. # # Example: # rename_table('octopuses', 'octopi') @@ -384,7 +392,7 @@ module ActiveRecord clear_cache! execute "ALTER TABLE #{quote_table_name(table_name)} RENAME TO #{quote_table_name(new_name)}" pk, seq = pk_and_sequence_for(new_name) - if seq.identifier == "#{table_name}_#{pk}_seq" + if seq && seq.identifier == "#{table_name}_#{pk}_seq" new_seq = "#{new_name}_#{pk}_seq" execute "ALTER TABLE #{quote_table_name(seq)} RENAME TO #{quote_table_name(new_seq)}" end @@ -448,6 +456,42 @@ module ActiveRecord 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 + FROM pg_constraint c + JOIN pg_class t1 ON c.conrelid = t1.oid + JOIN pg_class t2 ON c.confrelid = t2.oid + JOIN pg_attribute a1 ON a1.attnum = c.conkey[1] AND a1.attrelid = t1.oid + JOIN pg_attribute a2 ON a2.attnum = c.confkey[1] AND a2.attrelid = t2.oid + JOIN pg_namespace t3 ON c.connamespace = t3.oid + WHERE c.contype = 'f' + AND t1.relname = #{quote(table_name)} + AND t3.nspname = ANY (current_schemas(false)) + ORDER BY c.conname + SQL + + fk_info.map do |row| + options = { + column: row['column'], + name: row['name'], + primary_key: row['primary_key'] + } + + 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 + + def extract_foreign_key_action(specifier) # :nodoc: + case specifier + when 'c'; :cascade + when 'n'; :nullify + when 'r'; :restrict + end + end + def index_name_length 63 end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 6d5151dfe4..f660fc41cf 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -159,6 +159,10 @@ module ActiveRecord true end + def supports_foreign_keys? + true + end + def index_algorithms { concurrently: 'CONCURRENTLY' } end @@ -344,14 +348,13 @@ module ActiveRecord if supports_extensions? res = exec_query "SELECT EXISTS(SELECT * FROM pg_available_extensions WHERE name = '#{name}' AND installed_version IS NOT NULL) as enabled", 'SCHEMA' - res.column_types['enabled'].type_cast_from_database res.rows.first.first + res.cast_values.first end end def extensions if supports_extensions? - res = exec_query "SELECT extname from pg_extension", "SCHEMA" - res.rows.map { |r| res.column_types['extname'].type_cast_from_database r.first } + exec_query("SELECT extname from pg_extension", "SCHEMA").cast_values else super end @@ -380,6 +383,11 @@ module ActiveRecord PostgreSQL::Table.new(table_name, base) end + def lookup_cast_type(sql_type) # :nodoc: + oid = execute("SELECT #{quote(sql_type)}::regtype::oid", "SCHEMA").first['oid'].to_i + super(oid) + end + protected # Returns the version of the connected PostgreSQL server. @@ -446,7 +454,7 @@ module ActiveRecord m.register_type 'cidr', OID::Cidr.new m.register_type 'inet', OID::Inet.new m.register_type 'uuid', OID::Uuid.new - m.register_type 'xml', OID::SpecializedString.new(:xml) + m.register_type 'xml', OID::Xml.new m.register_type 'tsvector', OID::SpecializedString.new(:tsvector) m.register_type 'macaddr', OID::SpecializedString.new(:macaddr) m.register_type 'citext', OID::SpecializedString.new(:citext) @@ -561,7 +569,7 @@ module ActiveRecord end def exec_no_cache(sql, name, binds) - log(sql, name, binds) { @connection.async_exec(sql) } + log(sql, name, binds) { @connection.async_exec(sql, []) } end def exec_cache(sql, name, binds) diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index e6163771e8..bf96acad4a 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -14,9 +14,9 @@ module ActiveRecord raise ArgumentError, "No database file specified. Missing argument: database" end - # Allow database path relative to Rails.root, but only if - # the database path is not the special path that tells - # Sqlite to build a database only in memory. + # Allow database path relative to Rails.root, but only if the database + # path is not the special path that tells sqlite to build a database only + # in memory. if ':memory:' != config[:database] config[:database] = File.expand_path(config[:database], Rails.root) if defined?(Rails.root) dirname = File.dirname(config[:database]) @@ -50,6 +50,16 @@ module ActiveRecord end end + class SQLite3String < Type::String # :nodoc: + def type_cast_for_database(value) + if value.is_a?(::String) && value.encoding == Encoding::ASCII_8BIT + value.encode(Encoding::UTF_8) + else + super + end + end + end + # The SQLite3 adapter works SQLite 3.6.16 or newer # with the sqlite3-ruby drivers (available as gem from https://rubygems.org/gems/sqlite3). # @@ -220,13 +230,23 @@ module ActiveRecord # QUOTING ================================================== def _quote(value) # :nodoc: - if value.is_a?(Type::Binary::Data) + case value + when Type::Binary::Data "x'#{value.hex}'" else super end end + def _type_cast(value) # :nodoc: + case value + when BigDecimal + value.to_f + else + super + end + end + def quote_string(s) #:nodoc: @connection.class.quote(s) end @@ -249,19 +269,6 @@ module ActiveRecord end end - def type_cast(value, column) # :nodoc: - return value.to_f if BigDecimal === value - return super unless String === value - return super unless column && value - - value = super - if column.type == :string && value.encoding == Encoding::ASCII_8BIT - logger.error "Binary data inserted for `string` type on column `#{column.name}`" if logger - value = value.encode Encoding::UTF_8 - end - value - end - # DATABASE STATEMENTS ====================================== def explain(arel, binds = []) @@ -503,6 +510,7 @@ module ActiveRecord def initialize_type_map(m) super m.register_type(/binary/i, SQLite3Binary.new) + register_class_with_limit m, %r(char)i, SQLite3String end def select(sql, name = nil, binds = []) #:nodoc: diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 10b9e27b7d..d22806fbdf 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -107,6 +107,11 @@ module ActiveRecord end module ClassMethods + def allocate + define_attribute_methods + super + end + def initialize_find_by_cache self.find_by_statement_cache = {}.extend(Mutex_m) end @@ -248,12 +253,7 @@ module ActiveRecord # # Instantiates a single new object # User.new(first_name: 'Jamie') def initialize(attributes = nil, options = {}) - defaults = {} - self.class.raw_column_defaults.each do |k, v| - defaults[k] = v.duplicable? ? v.dup : v - end - - @attributes = self.class.attributes_builder.build_from_database(defaults) + @attributes = self.class.default_attributes.dup init_internals initialize_internals_callback @@ -320,9 +320,8 @@ module ActiveRecord ## def initialize_dup(other) # :nodoc: - pk = self.class.primary_key @attributes = @attributes.dup - @attributes[pk] = Attribute.from_database(nil, type_for_attribute(pk)) + @attributes.reset(self.class.primary_key) run_callbacks(:initialize) unless _initialize_callbacks.empty? @@ -520,10 +519,7 @@ module ActiveRecord end def init_internals - pk = self.class.primary_key - unless @attributes.include?(pk) - @attributes[pk] = Attribute.from_database(nil, type_for_attribute(pk)) - end + @attributes.ensure_initialized(self.class.primary_key) @aggregation_cache = {} @association_cache = {} diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index 05c4b13016..a33c7c64a7 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -38,7 +38,7 @@ module ActiveRecord 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 + arel_table[counter_name] => object.send(counter_association).count(:all) }, primary_key) connection.update stmt end diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index 38c6dcf88d..f0ee433d0b 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -69,12 +69,12 @@ module ActiveRecord # # Where conditions on an enum attribute must use the ordinal value of an enum. module Enum - def self.extended(base) + def self.extended(base) # :nodoc: base.class_attribute(:defined_enums) base.defined_enums = {} end - def inherited(base) + def inherited(base) # :nodoc: base.defined_enums = defined_enums.deep_dup super end diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 4cd5f92207..4306b36ae1 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -2,7 +2,7 @@ require 'erb' require 'yaml' require 'zlib' require 'active_support/dependencies' -require 'active_support/core_ext/securerandom' +require 'active_support/core_ext/digest/uuid' require 'active_record/fixture_set/file' require 'active_record/errors' @@ -551,7 +551,7 @@ module ActiveRecord # Integer identifiers are values less than 2^30. UUIDs are RFC 4122 version 5 SHA-1 hashes. def self.identify(label, column_type = :integer) if column_type == :uuid - SecureRandom.uuid_v5(SecureRandom::UUID_OID_NAMESPACE, label.to_s) + Digest::UUID.uuid_v5(Digest::UUID::OID_NAMESPACE, label.to_s) else Zlib.crc32(label.to_s) % MAX_ID end diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb index 08fc91c9df..f6c265a6d6 100644 --- a/activerecord/lib/active_record/inheritance.rb +++ b/activerecord/lib/active_record/inheritance.rb @@ -1,6 +1,37 @@ require 'active_support/core_ext/hash/indifferent_access' module ActiveRecord + # == Single table inheritance + # + # Active Record allows inheritance by storing the name of the class in a column that by + # default is named "type" (can be changed by overwriting <tt>Base.inheritance_column</tt>). + # This means that an inheritance looking like this: + # + # class Company < ActiveRecord::Base; end + # class Firm < Company; end + # class Client < Company; end + # class PriorityClient < Client; end + # + # When you do <tt>Firm.create(name: "37signals")</tt>, this record will be saved in + # the companies table with type = "Firm". You can then fetch this row again using + # <tt>Company.where(name: '37signals').first</tt> and it will return a Firm object. + # + # Be aware that because the type column is an attribute on the record every new + # subclass will instantly be marked as dirty and the type column will be included + # in the list of changed attributes on the record. This is different from non + # STI classes: + # + # Company.new.changed? # => false + # Firm.new.changed? # => true + # Firm.new.changes # => {"type"=>["","Firm"]} + # + # If you don't have a type column defined in your table, single-table inheritance won't + # be triggered. In that case, it'll work just like normal subclasses with no special magic + # for differentiating between them or reloading the right type with find. + # + # Note, all the attributes for all the cases are kept in the same table. Read more: + # http://www.martinfowler.com/eaaCatalog/singleTableInheritance.html + # module Inheritance extend ActiveSupport::Concern diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb index f4ec13a177..52eeb8ae1f 100644 --- a/activerecord/lib/active_record/locking/optimistic.rb +++ b/activerecord/lib/active_record/locking/optimistic.rb @@ -53,11 +53,6 @@ module ActiveRecord included do class_attribute :lock_optimistically, instance_writer: false self.lock_optimistically = true - - is_lock_column = ->(name, _) { lock_optimistically && name == locking_column } - decorate_matching_attribute_types(is_lock_column, :_optimistic_locking) do |type| - LockingType.new(type) - end end def locking_enabled? #:nodoc: @@ -167,6 +162,22 @@ module ActiveRecord counters = counters.merge(locking_column => 1) if locking_enabled? super end + + private + + # We need to apply this decorator here, rather than on module inclusion. The closure + # created by the matcher would otherwise evaluate for `ActiveRecord::Base`, not the + # sub class being decorated. As such, changes to `lock_optimistically`, or + # `locking_column` would not be picked up. + def inherited(subclass) + subclass.class_eval do + is_lock_column = ->(name, _) { lock_optimistically && name == locking_column } + decorate_matching_attribute_types(is_lock_column, :_optimistic_locking) do |type| + LockingType.new(type) + end + end + super + end end end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 01c001e692..e94b6ae9eb 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -366,22 +366,27 @@ module ActiveRecord # This class is used to verify that all migrations have been run before # loading a web page if config.active_record.migration_error is set to :page_load class CheckPending - def initialize(app, connection = Base.connection) + def initialize(app) @app = app - @connection = connection @last_check = 0 end def call(env) - if @connection.supports_migrations? + if connection.supports_migrations? mtime = ActiveRecord::Migrator.last_migration.mtime.to_i if @last_check < mtime - ActiveRecord::Migration.check_pending!(@connection) + ActiveRecord::Migration.check_pending!(connection) @last_check = mtime end end @app.call(env) end + + private + + def connection + ActiveRecord::Base.connection + end end class << self @@ -645,7 +650,9 @@ module ActiveRecord unless @connection.respond_to? :revert unless arguments.empty? || [:execute, :enable_extension, :disable_extension].include?(method) arguments[0] = proper_table_name(arguments.first, table_name_options) - arguments[1] = proper_table_name(arguments.second, table_name_options) if method == :rename_table + if [:rename_table, :add_foreign_key].include?(method) + arguments[1] = proper_table_name(arguments.second, table_name_options) + end end end return super unless connection.respond_to?(method) diff --git a/activerecord/lib/active_record/migration/command_recorder.rb b/activerecord/lib/active_record/migration/command_recorder.rb index c44d8c1665..f833caaab6 100644 --- a/activerecord/lib/active_record/migration/command_recorder.rb +++ b/activerecord/lib/active_record/migration/command_recorder.rb @@ -74,7 +74,9 @@ module ActiveRecord :rename_index, :rename_column, :add_index, :remove_index, :add_timestamps, :remove_timestamps, :change_column_default, :add_reference, :remove_reference, :transaction, :drop_join_table, :drop_table, :execute_block, :enable_extension, - :change_column, :execute, :remove_columns, :change_column_null # irreversible methods need to be here too + :change_column, :execute, :remove_columns, :change_column_null, + :add_foreign_key, :remove_foreign_key + # irreversible methods need to be here too ].each do |method| class_eval <<-EOV, __FILE__, __LINE__ + 1 def #{method}(*args, &block) # def create_table(*args, &block) @@ -167,6 +169,21 @@ module ActiveRecord [:change_column_null, args] end + def invert_add_foreign_key(args) + from_table, to_table, add_options = args + add_options ||= {} + + if add_options[:name] + options = { name: add_options[:name] } + elsif add_options[:column] + options = { column: add_options[:column] } + else + options = to_table + end + + [:remove_foreign_key, [from_table, options]] + end + # Forwards any missing method call to the \target. def method_missing(method, *args, &block) if @delegate.respond_to?(method) diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 099042cab2..092c3b4fb7 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -224,8 +224,8 @@ module ActiveRecord end def column_types # :nodoc: - @column_types ||= Hash.new(Type::Value.new).tap do |column_types| - columns.each { |column| column_types[column.name] = column.cast_type } + @column_types ||= columns_hash.transform_values(&:cast_type).tap do |h| + h.default = Type::Value.new end end @@ -236,17 +236,12 @@ 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 - @column_defaults ||= Hash[raw_column_defaults.map { |name, default| - [name, type_for_attribute(name).type_cast_from_database(default)] - }] + default_attributes.to_hash end - # Returns a hash where the keys are the column names and the values - # are the default values suitable for use in `@raw_attriubtes` - def raw_column_defaults # :nodoc: - @raw_column_defaults ||= Hash[columns_hash.map { |name, column| - [name, column.default] - }] + def default_attributes # :nodoc: + @default_attributes ||= attributes_builder.build_from_database( + columns_hash.transform_values(&:default)) end # Returns an array of column names as strings. @@ -292,11 +287,10 @@ module ActiveRecord connection.schema_cache.clear_table_cache!(table_name) if table_exists? @arel_engine = nil - @column_defaults = nil - @raw_column_defaults = 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 diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index ee634d7bb3..96e44c2f59 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -396,6 +396,7 @@ module ActiveRecord end @attributes = fresh_object.instance_variable_get('@attributes') + @new_record = false self end diff --git a/activerecord/lib/active_record/query_cache.rb b/activerecord/lib/active_record/query_cache.rb index df8654e5c1..16ad942912 100644 --- a/activerecord/lib/active_record/query_cache.rb +++ b/activerecord/lib/active_record/query_cache.rb @@ -29,9 +29,10 @@ module ActiveRecord end def call(env) - enabled = ActiveRecord::Base.connection.query_cache_enabled + connection = ActiveRecord::Base.connection + enabled = connection.query_cache_enabled connection_id = ActiveRecord::Base.connection_id - ActiveRecord::Base.connection.enable_query_cache! + connection.enable_query_cache! response = @app.call(env) response[2] = Rack::BodyProxy.new(response[2]) do diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index ecf5afc4f4..fa94df7a52 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -93,22 +93,21 @@ db_namespace = namespace :db do desc 'Display status of migrations' task :status => [:environment, :load_config] do - unless ActiveRecord::Base.connection.table_exists?(ActiveRecord::Migrator.schema_migrations_table_name) + unless ActiveRecord::SchemaMigration.table_exists? abort 'Schema migrations table does not exist yet.' end - db_list = ActiveRecord::Base.connection.select_values("SELECT version FROM #{ActiveRecord::Migrator.schema_migrations_table_name}") - db_list.map! { |version| ActiveRecord::SchemaMigration.normalize_migration_number(version) } - file_list = [] - ActiveRecord::Migrator.migrations_paths.each do |path| - Dir.foreach(path) do |file| - # match "20091231235959_some_name.rb" and "001_some_name.rb" pattern - if match_data = /^(\d{3,})_(.+)\.rb$/.match(file) - version = ActiveRecord::SchemaMigration.normalize_migration_number(match_data[1]) - status = db_list.delete(version) ? 'up' : 'down' - file_list << [status, version, match_data[2].humanize] + db_list = ActiveRecord::SchemaMigration.normalized_versions + + file_list = + ActiveRecord::Migrator.migrations_paths.flat_map do |path| + # match "20091231235959_some_name.rb" and "001_some_name.rb" pattern + Dir.foreach(path).grep(/^(\d{3,})_(.+)\.rb$/) do + version = ActiveRecord::SchemaMigration.normalize_migration_number($1) + status = db_list.delete(version) ? 'up' : 'down' + [status, version, $2.humanize] + end end - end - end + db_list.map! do |version| ['up', version, '********** NO FILE **********'] end @@ -116,8 +115,8 @@ db_namespace = namespace :db do puts "\ndatabase: #{ActiveRecord::Base.connection_config[:database]}\n\n" puts "#{'Status'.center(8)} #{'Migration ID'.ljust(14)} Migration Name" puts "-" * 50 - (db_list + file_list).sort_by {|migration| migration[1]}.each do |migration| - puts "#{migration[0].center(8)} #{migration[1].ljust(14)} #{migration[2]}" + (db_list + file_list).sort_by { |_, version, _| version }.each do |status, version, name| + puts "#{status.center(8)} #{version.ljust(14)} #{name}" end puts end @@ -189,17 +188,21 @@ db_namespace = namespace :db do task :load => [:environment, :load_config] do require 'active_record/fixtures' - base_dir = if ENV['FIXTURES_PATH'] - File.join [Rails.root, ENV['FIXTURES_PATH'] || %w{test fixtures}].flatten - else - ActiveRecord::Tasks::DatabaseTasks.fixtures_path - end + base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path - fixtures_dir = File.join [base_dir, ENV['FIXTURES_DIR']].compact + fixtures_dir = if ENV['FIXTURES_DIR'] + File.join base_dir, ENV['FIXTURES_DIR'] + else + base_dir + end - (ENV['FIXTURES'] ? ENV['FIXTURES'].split(',') : Dir["#{fixtures_dir}/**/*.yml"].map {|f| f[(fixtures_dir.size + 1)..-5] }).each do |fixture_file| - ActiveRecord::FixtureSet.create_fixtures(fixtures_dir, fixture_file) - end + fixture_files = if ENV['FIXTURES'] + ENV['FIXTURES'].split(',') + else + Pathname.glob("#{fixtures_dir}/**/*.yml").map {|f| f.basename.sub_ext('').to_s } + end + + ActiveRecord::FixtureSet.create_fixtures(fixtures_dir, fixture_files) end # desc "Search for a fixture given a LABEL or ID. Specify an alternative path (eg. spec/fixtures) using FIXTURES_PATH=spec/fixtures." @@ -211,12 +214,7 @@ db_namespace = namespace :db do puts %Q(The fixture ID for "#{label}" is #{ActiveRecord::FixtureSet.identify(label)}.) if label - base_dir = if ENV['FIXTURES_PATH'] - File.join [Rails.root, ENV['FIXTURES_PATH'] || %w{test fixtures}].flatten - else - ActiveRecord::Tasks::DatabaseTasks.fixtures_path - end - + base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path Dir["#{base_dir}/**/*.yml"].each do |file| if data = YAML::load(ERB.new(IO.read(file)).result) diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 28c39bdd5c..12208aecf7 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -13,14 +13,21 @@ module ActiveRecord end def self.create(macro, name, scope, options, ar) - case macro - when :has_many, :belongs_to, :has_one - klass = options[:through] ? ThroughReflection : AssociationReflection - when :composed_of - klass = AggregateReflection - end - - klass.new(macro, name, scope, options, ar) + klass = case macro + when :composed_of + AggregateReflection + when :has_many + HasManyReflection + when :has_one + HasOneReflection + when :belongs_to + BelongsToReflection + else + raise "Unsupported Macro: #{macro}" + end + + reflection = klass.new(name, scope, options, ar) + options[:through] ? ThroughReflection.new(reflection) : reflection end def self.add_reflection(ar, name, reflection) @@ -110,6 +117,52 @@ module ActiveRecord end end + # Holds all the methods that are shared between MacroReflection, AssociationReflection + # and ThroughReflection + class AbstractReflection # :nodoc: + def table_name + klass.table_name + end + + # Returns a new, unsaved instance of the associated class. +attributes+ will + # be passed to the class's constructor. + def build_association(attributes, &block) + klass.new(attributes, &block) + end + + def quoted_table_name + klass.quoted_table_name + end + + def primary_key_type + klass.type_for_attribute(klass.primary_key) + end + + # Returns the class name for the macro. + # + # <tt>composed_of :balance, class_name: 'Money'</tt> returns <tt>'Money'</tt> + # <tt>has_many :clients</tt> returns <tt>'Client'</tt> + def class_name + @class_name ||= (options[:class_name] || derive_class_name).to_s + end + + JoinKeys = Struct.new(:key, :foreign_key) # :nodoc: + + def join_keys(assoc_klass) + if source_macro == :belongs_to + if polymorphic? + reflection_key = association_primary_key(assoc_klass) + else + reflection_key = association_primary_key + end + reflection_foreign_key = foreign_key + else + reflection_foreign_key = active_record_primary_key + reflection_key = foreign_key + end + JoinKeys.new(reflection_key, reflection_foreign_key) + end + end # Base class for AggregateReflection and AssociationReflection. Objects of # AggregateReflection and AssociationReflection are returned by the Reflection::ClassMethods. # @@ -117,7 +170,7 @@ module ActiveRecord # AggregateReflection # AssociationReflection # ThroughReflection - class MacroReflection + class MacroReflection < AbstractReflection # Returns the name of the macro. # # <tt>composed_of :balance, class_name: 'Money'</tt> returns <tt>:balance</tt> @@ -142,8 +195,7 @@ module ActiveRecord attr_reader :plural_name # :nodoc: - def initialize(macro, name, scope, options, active_record) - @macro = macro + def initialize(name, scope, options, active_record) @name = name @scope = scope @options = options @@ -167,15 +219,11 @@ module ActiveRecord # <tt>composed_of :balance, class_name: 'Money'</tt> returns the Money class # <tt>has_many :clients</tt> returns the Client class def klass - @klass ||= class_name.constantize + @klass ||= compute_class(class_name) end - # Returns the class name for the macro. - # - # <tt>composed_of :balance, class_name: 'Money'</tt> returns <tt>'Money'</tt> - # <tt>has_many :clients</tt> returns <tt>'Client'</tt> - def class_name - @class_name ||= (options[:class_name] || derive_class_name).to_s + def compute_class(name) + name.constantize end # Returns +true+ if +self+ and +other_aggregation+ have the same +name+ attribute, +active_record+ attribute, @@ -188,23 +236,6 @@ module ActiveRecord active_record == other_aggregation.active_record end - JoinKeys = Struct.new(:key, :foreign_key) # :nodoc: - - def join_keys(assoc_klass) - if source_macro == :belongs_to - if polymorphic? - reflection_key = association_primary_key(assoc_klass) - else - reflection_key = association_primary_key - end - reflection_foreign_key = foreign_key - else - reflection_key = foreign_key - reflection_foreign_key = active_record_primary_key - end - JoinKeys.new(reflection_key, reflection_foreign_key) - end - private def derive_class_name name.to_s.camelize @@ -237,15 +268,18 @@ module ActiveRecord # a new association object. Use +build_association+ or +create_association+ # instead. This allows plugins to hook into association object creation. def klass - @klass ||= active_record.send(:compute_type, class_name) + @klass ||= compute_class(class_name) + end + + def compute_class(name) + active_record.send(:compute_type, name) end attr_reader :type, :foreign_type attr_accessor :parent_reflection # [:name, Reflection] - def initialize(macro, name, scope, options, active_record) + def initialize(name, scope, options, active_record) super - @collection = macro == :has_many @automatic_inverse_of = nil @type = options[:as] && "#{options[:as]}_type" @foreign_type = options[:foreign_type] || "#{name}_type" @@ -264,24 +298,10 @@ module ActiveRecord } end - # Returns a new, unsaved instance of the associated class. +attributes+ will - # be passed to the class's constructor. - def build_association(attributes, &block) - klass.new(attributes, &block) - end - def constructable? # :nodoc: @constructable end - def table_name - klass.table_name - end - - def quoted_table_name - klass.quoted_table_name - end - def join_table @join_table ||= options[:join_table] || derive_join_table end @@ -290,10 +310,6 @@ module ActiveRecord @foreign_key ||= options[:foreign_key] || derive_foreign_key end - def primary_key_type - klass.type_for_attribute(klass.primary_key) - end - def association_foreign_key @association_foreign_key ||= options[:association_foreign_key] || class_name.foreign_key end @@ -396,7 +412,7 @@ Joining, Preloading and eager loading of these associations is deprecated and wi # association. Returns +true+ if the +macro+ is either +has_many+ or # +has_and_belongs_to_many+, +false+ otherwise. def collection? - @collection + false end # Returns whether or not the association should be validated as part of @@ -560,22 +576,57 @@ Joining, Preloading and eager loading of these associations is deprecated and wi end end + class HasManyReflection < AssociationReflection #:nodoc: + def initialize(name, scope, options, active_record) + @macro = :has_many + super(name, scope, options, active_record) + end + + def collection? + true + end + end + + class HasOneReflection < AssociationReflection #:nodoc: + def initialize(name, scope, options, active_record) + @macro = :has_one + super(name, scope, options, active_record) + end + end + + class BelongsToReflection < AssociationReflection #:nodoc: + def initialize(name, scope, options, active_record) + @macro = :belongs_to + super(name, scope, options, active_record) + end + end + class HasAndBelongsToManyReflection < AssociationReflection #:nodoc: - def initialize(macro, name, scope, options, active_record) + def initialize(name, scope, options, active_record) + @macro = :has_and_belongs_to_many super - @collection = true + end + + def collection? + true end end # Holds all the meta-data about a :through association as it was specified # in the Active Record class. - class ThroughReflection < AssociationReflection #:nodoc: + class ThroughReflection < AbstractReflection #:nodoc: + attr_reader :delegate_reflection delegate :foreign_key, :foreign_type, :association_foreign_key, :active_record_primary_key, :type, :to => :source_reflection - def initialize(macro, name, scope, options, active_record) - super - @source_reflection_name = options[:source] + def initialize(delegate_reflection) + @delegate_reflection = delegate_reflection + @klass = delegate_reflection.options[:class] + @source_reflection_name = delegate_reflection.options[:source] + end + + def klass + @klass ||= delegate_reflection.compute_class(class_name) end # Returns the source of the through reflection. It checks both a singularized @@ -777,15 +828,25 @@ directive on your declaration like: protected - def actual_source_reflection # FIXME: this is a horrible name - source_reflection.actual_source_reflection - end + def actual_source_reflection # FIXME: this is a horrible name + source_reflection.send(:actual_source_reflection) + end + + def primary_key(klass) + klass.primary_key || raise(UnknownPrimaryKey.new(klass)) + end private def derive_class_name # get the class_name of the belongs_to association of the through reflection options[:source_type] || source_reflection.class_name end + + delegate_methods = AssociationReflection.public_instance_methods - + public_instance_methods + + delegate(*delegate_methods, to: :delegate_reflection) + end end end diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index cef40be7ce..ad54d84665 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -242,6 +242,11 @@ module ActiveRecord @records end + # Serializes the relation objects Array. + def encode_with(coder) + coder.represent_seq(nil, to_a) + end + def as_json(options = nil) #:nodoc: to_a.as_json(options) end diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index c80ffbae92..90e99957f6 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -34,7 +34,7 @@ module ActiveRecord # # => counts the number of different age values # # Note: not all valid +select+ expressions are valid +count+ expressions. The specifics differ - # between databases. In invalid cases, an error from the databsae is thrown. + # between databases. In invalid cases, an error from the database is thrown. def count(column_name = nil, options = {}) # TODO: Remove options argument as soon we remove support to # activerecord-deprecated_finders. @@ -178,16 +178,7 @@ module ActiveRecord columns_hash.key?(cn) ? arel_table[cn] : cn } result = klass.connection.select_all(relation.arel, nil, bind_values) - columns = result.columns.map do |key| - klass.column_types.fetch(key) { - result.column_types.fetch(key) { result.identity_type } - } - end - - result = result.rows.map do |values| - columns.zip(values).map { |column, value| column.type_cast_from_database value } - end - columns.one? ? result.map!(&:first) : result + result.cast_values(klass.column_types) end end diff --git a/activerecord/lib/active_record/result.rb b/activerecord/lib/active_record/result.rb index 8c29c69a9b..8405fdaeb9 100644 --- a/activerecord/lib/active_record/result.rb +++ b/activerecord/lib/active_record/result.rb @@ -42,14 +42,6 @@ module ActiveRecord @column_types = column_types end - def identity_type # :nodoc: - IDENTITY_TYPE - end - - def column_type(name) - @column_types[name] || identity_type - end - def each if block_given? hash_rows.each { |row| yield row } @@ -82,6 +74,15 @@ module ActiveRecord hash_rows.last end + def cast_values(type_overrides = {}) # :nodoc: + types = columns.map { |name| column_type(name, type_overrides) } + result = rows.map do |values| + types.zip(values).map { |type, value| type.type_cast_from_database(value) } + end + + columns.one? ? result.map!(&:first) : result + end + def initialize_copy(other) @columns = columns.dup @rows = rows.dup @@ -91,6 +92,12 @@ module ActiveRecord private + def column_type(name, type_overrides = {}) + type_overrides.fetch(name) do + column_types.fetch(name, IDENTITY_TYPE) + end + end + def hash_rows @hash_rows ||= begin diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index e055d571ab..a94364bde1 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -91,7 +91,8 @@ HEADER end def tables(stream) - @connection.tables.sort.each do |tbl| + sorted_tables = @connection.tables.sort + sorted_tables.each do |tbl| next if ['schema_migrations', ignore_tables].flatten.any? do |ignored| case ignored when String; remove_prefix_and_suffix(tbl) == ignored @@ -102,6 +103,13 @@ HEADER end table(tbl, stream) end + + # 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) + end + end end def table(table, stream) @@ -112,7 +120,8 @@ HEADER # first dump primary key column if @connection.respond_to?(:pk_and_sequence_for) pk, _ = @connection.pk_and_sequence_for(table) - elsif @connection.respond_to?(:primary_key) + end + if !pk && @connection.respond_to?(:primary_key) pk = @connection.primary_key(table) end @@ -212,6 +221,36 @@ HEADER end end + def foreign_keys(table, stream) + 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, + ] + + if foreign_key.column != @connection.foreign_key_column_for(foreign_key.to_table) + parts << ('column: ' + foreign_key.column.inspect) + end + + if foreign_key.custom_primary_key? + 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) + 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.join(', ') + end + + stream.puts add_foreign_key_statements.sort.join("\n") + end + end + def remove_prefix_and_suffix(table) table.gsub(/^(#{@options[:table_name_prefix]})(.+)(#{@options[:table_name_suffix]})$/, "\\2") end diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb index 3a004d58c9..b5038104ac 100644 --- a/activerecord/lib/active_record/schema_migration.rb +++ b/activerecord/lib/active_record/schema_migration.rb @@ -43,6 +43,10 @@ module ActiveRecord def normalize_migration_number(number) "%.3d" % number.to_i end + + def normalized_versions + pluck(:version).map { |v| normalize_migration_number v } + end end def version diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index 7712a14b79..9bc23b5ec7 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -58,7 +58,11 @@ module ActiveRecord end def fixtures_path - @fixtures_path ||= File.join(root, 'test', 'fixtures') + @fixtures_path ||= if ENV['FIXTURES_PATH'] + File.join(root, ENV['FIXTURES_PATH']) + else + File.join(root, 'test', 'fixtures') + end end def root @@ -172,12 +176,10 @@ module ActiveRecord when :ruby file ||= File.join(db_dir, "schema.rb") check_schema_file(file) - purge(current_config) load(file) when :sql file ||= File.join(db_dir, "structure.sql") check_schema_file(file) - purge(current_config) structure_load(current_config, file) else raise ArgumentError, "unknown format #{format.inspect}" diff --git a/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb b/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb index 9ab64d0325..5688931db2 100644 --- a/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/sqlite_database_tasks.rb @@ -21,11 +21,7 @@ module ActiveRecord FileUtils.rm(file) if File.exist?(file) end - - def purge - drop - create - end + alias :purge :drop def charset connection.encoding diff --git a/activerecord/lib/active_record/type/binary.rb b/activerecord/lib/active_record/type/binary.rb index 7416c554c7..d29ff4e494 100644 --- a/activerecord/lib/active_record/type/binary.rb +++ b/activerecord/lib/active_record/type/binary.rb @@ -24,7 +24,7 @@ module ActiveRecord class Data # :nodoc: def initialize(value) - @value = value + @value = value.to_s end def to_s diff --git a/activerecord/lib/active_record/type/string.rb b/activerecord/lib/active_record/type/string.rb index 3b1554bd5a..150defb106 100644 --- a/activerecord/lib/active_record/type/string.rb +++ b/activerecord/lib/active_record/type/string.rb @@ -5,8 +5,20 @@ module ActiveRecord :string end - def text? - true + def changed_in_place?(raw_old_value, new_value) + if new_value.is_a?(::String) + raw_old_value != new_value + end + end + + def type_cast_for_database(value) + case value + when ::Numeric, ActiveSupport::Duration then value.to_s + when ::String then ::String.new(value) + when true then "1" + when false then "0" + else super + end end private @@ -15,7 +27,8 @@ module ActiveRecord case value when true then "1" when false then "0" - else value.to_s + # String.new is slightly faster than dup + else ::String.new(value.to_s) end end end diff --git a/activerecord/lib/active_record/type/value.rb b/activerecord/lib/active_record/type/value.rb index 081da7547e..e0a783fb45 100644 --- a/activerecord/lib/active_record/type/value.rb +++ b/activerecord/lib/active_record/type/value.rb @@ -50,10 +50,6 @@ 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 diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index 9999624fcf..b4b33804de 100644 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -54,7 +54,7 @@ module ActiveRecord # Attempts to save the record just like Base#save but will raise a +RecordInvalid+ # exception instead of returning +false+ if the record is not valid. def save!(options={}) - perform_validations(options) ? super : raise(RecordInvalid.new(self)) + perform_validations(options) ? super : raise_record_invalid end # Runs all the validations within the specified context. Returns +true+ if @@ -75,8 +75,24 @@ module ActiveRecord alias_method :validate, :valid? + # Runs all the validations within the specified context. Returns +true+ if + # no errors are found, raises +RecordInvalid+ otherwise. + # + # If the argument is +false+ (default is +nil+), the context is set to <tt>:create</tt> if + # <tt>new_record?</tt> is +true+, and to <tt>:update</tt> if it is not. + # + # Validations with no <tt>:on</tt> option will run no matter the context. Validations with + # some <tt>:on</tt> option will only run in the specified context. + def validate!(context = nil) + valid?(context) || raise_record_invalid + end + protected + def raise_record_invalid + raise(RecordInvalid.new(self)) + end + def perform_validations(options={}) # :nodoc: options[:validate] == false || valid?(options[:context]) end diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index 04e28a0cfe..2a34969a8c 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -61,9 +61,11 @@ module ActiveRecord 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? + if value.is_a?(String) && column.limit + value = value.to_s[0, column.limit] + end - if !options[:case_sensitive] && value && column.text? + if !options[:case_sensitive] && value.is_a?(String) # will use SQL LOWER function before comparison, unless it detects a case insensitive collation klass.connection.case_insensitive_comparison(table, attribute, column, value) else |