diff options
Diffstat (limited to 'activerecord/lib')
119 files changed, 1562 insertions, 2094 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb index 0c19fed9e1..5de6503144 100644 --- a/activerecord/lib/active_record.rb +++ b/activerecord/lib/active_record.rb @@ -27,14 +27,14 @@ require "active_support" require "active_support/rails" require "active_model" require "arel" +require "yaml" -require_relative "active_record/version" -require_relative "active_record/attribute_set" +require "active_record/version" +require "active_model/attribute_set" module ActiveRecord extend ActiveSupport::Autoload - autoload :Attribute autoload :Base autoload :Callbacks autoload :Core @@ -104,6 +104,7 @@ module ActiveRecord autoload :Result autoload :TableMetadata + autoload :Type end module Coders @@ -181,3 +182,7 @@ end ActiveSupport.on_load(:i18n) do I18n.load_path << File.expand_path("active_record/locale/en.yml", __dir__) end + +YAML.load_tags["!ruby/object:ActiveRecord::AttributeSet"] = "ActiveModel::AttributeSet" +YAML.load_tags["!ruby/object:ActiveRecord::Attribute::FromDatabase"] = "ActiveModel::Attribute::FromDatabase" +YAML.load_tags["!ruby/object:ActiveRecord::LazyAttributeHash"] = "ActiveModel::LazyAttributeHash" diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index a61c0336db..661605d3e5 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -3,7 +3,7 @@ require "active_support/core_ext/enumerable" require "active_support/core_ext/string/conversions" require "active_support/core_ext/module/remove_method" -require_relative "errors" +require "active_record/errors" module ActiveRecord class AssociationNotFoundError < ConfigurationError #:nodoc: @@ -140,26 +140,6 @@ module ActiveRecord class HasOneThroughCantAssociateThroughHasOneOrManyReflection < ThroughCantAssociateThroughHasOneOrManyReflection #:nodoc: end - class HasManyThroughCantAssociateNewRecords < ActiveRecordError #:nodoc: - def initialize(owner = nil, reflection = nil) - if owner && reflection - super("Cannot associate new records through '#{owner.class.name}##{reflection.name}' on '#{reflection.source_reflection.class_name rescue nil}##{reflection.source_reflection.name rescue nil}'. Both records must have an id in order to create the has_many :through record associating them.") - else - super("Cannot associate new records.") - end - end - end - - class HasManyThroughCantDissociateNewRecords < ActiveRecordError #:nodoc: - def initialize(owner = nil, reflection = nil) - if owner && reflection - super("Cannot dissociate new records through '#{owner.class.name}##{reflection.name}' on '#{reflection.source_reflection.class_name rescue nil}##{reflection.source_reflection.name rescue nil}'. Both records must have an id in order to delete the has_many :through record associating them.") - else - super("Cannot dissociate new records.") - end - end - end - class ThroughNestedAssociationsAreReadonly < ActiveRecordError #:nodoc: def initialize(owner = nil, reflection = nil) if owner && reflection @@ -189,16 +169,6 @@ module ActiveRecord end end - class ReadOnlyAssociation < ActiveRecordError #:nodoc: - def initialize(reflection = nil) - if reflection - super("Cannot add to a has_many :through association. Try adding to #{reflection.through_reflection.name.inspect}.") - else - super("Read-only reflection error.") - end - end - end - # This error is raised when trying to destroy a parent instance in N:1 or 1:1 associations # (has_many, has_one) when there is at least 1 child associated instance. # ex: if @project.tasks.size > 0, DeleteRestrictionError will be raised when trying to destroy @project @@ -483,14 +453,14 @@ module ActiveRecord # The tables for these classes could look something like: # # CREATE TABLE users ( - # id int NOT NULL auto_increment, - # account_id int default NULL, + # id bigint NOT NULL auto_increment, + # account_id bigint default NULL, # name varchar default NULL, # PRIMARY KEY (id) # ) # # CREATE TABLE accounts ( - # id int NOT NULL auto_increment, + # id bigint NOT NULL auto_increment, # name varchar default NULL, # PRIMARY KEY (id) # ) @@ -557,9 +527,8 @@ module ActiveRecord # has_many :birthday_events, ->(user) { where(starts_on: user.birthday) }, class_name: 'Event' # end # - # Note: Joining, eager loading and preloading of these associations is not fully possible. + # Note: Joining, eager loading and preloading of these associations is not possible. # These operations happen before instance creation and the scope will be called with a +nil+ argument. - # This can lead to unexpected behavior and is deprecated. # # == Association callbacks # @@ -850,7 +819,7 @@ module ActiveRecord # project.milestones # fetches milestones from the database # project.milestones.size # uses the milestone cache # project.milestones.empty? # uses the milestone cache - # project.milestones(true).size # fetches milestones from the database + # project.milestones.reload.size # fetches milestones from the database # project.milestones # uses the milestone cache # # == Eager loading of associations @@ -1400,7 +1369,7 @@ module ActiveRecord # has_many :tags, as: :taggable # has_many :reports, -> { readonly } # has_many :subscribers, through: :subscriptions, source: :user - def has_many(name, scope = nil, options = {}, &extension) + def has_many(name, scope = nil, **options, &extension) reflection = Builder::HasMany.build(self, name, scope, options, &extension) Reflection.add_reflection self, name, reflection end @@ -1534,7 +1503,7 @@ module ActiveRecord # 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 = {}) + def has_one(name, scope = nil, **options) reflection = Builder::HasOne.build(self, name, scope, options) Reflection.add_reflection self, name, reflection end @@ -1678,7 +1647,7 @@ module ActiveRecord # belongs_to :company, touch: :employees_last_updated_at # belongs_to :user, optional: true # belongs_to :account, default: -> { company.account } - def belongs_to(name, scope = nil, options = {}) + def belongs_to(name, scope = nil, **options) reflection = Builder::BelongsTo.build(self, name, scope, options) Reflection.add_reflection self, name, reflection end @@ -1848,7 +1817,7 @@ module ActiveRecord builder = Builder::HasAndBelongsToMany.new name, self, options - join_model = ActiveSupport::Deprecation.silence { builder.through_model } + join_model = builder.through_model const_set join_model.name, join_model private_constant join_model.name @@ -1877,7 +1846,7 @@ module ActiveRecord hm_options[k] = options[k] if options.key? k end - ActiveSupport::Deprecation.silence { has_many name, scope, hm_options, &extension } + has_many name, scope, hm_options, &extension _reflections[name.to_s].parent_reflection = habtm_reflection end end diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index 096f016976..14881cfe17 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -6,36 +6,34 @@ module ActiveRecord module Associations # Keeps track of table aliases for ActiveRecord::Associations::JoinDependency class AliasTracker # :nodoc: - def self.create(connection, initial_table) - aliases = Hash.new(0) - aliases[initial_table] = 1 - new(connection, aliases) - end - - def self.create_with_joins(connection, initial_table, joins) + def self.create(connection, initial_table, joins) if joins.empty? - create(connection, initial_table) + aliases = Hash.new(0) else aliases = Hash.new { |h, k| h[k] = initial_count_for(connection, k, joins) } - aliases[initial_table] = 1 - new(connection, aliases) end + aliases[initial_table] = 1 + new(connection, aliases) end def self.initial_count_for(connection, name, table_joins) - # quoted_name should be downcased as some database adapters (Oracle) return quoted name in uppercase - quoted_name = connection.quote_table_name(name).downcase + quoted_name = nil counts = table_joins.map do |join| if join.is_a?(Arel::Nodes::StringJoin) + # quoted_name should be case ignored as some database adapters (Oracle) return quoted name in uppercase + quoted_name ||= connection.quote_table_name(name) + # Table names + table aliases - join.left.downcase.scan( - /join(?:\s+\w+)?\s+(\S+\s+)?#{quoted_name}\son/ + join.left.scan( + /JOIN(?:\s+\w+)?\s+(?:\S+\s+)?(?:#{quoted_name}|#{name})\sON/i ).size elsif join.respond_to? :left - join.left.table_name == name ? 1 : 0 + join.left.name == name ? 1 : 0 + elsif join.is_a?(Hash) + join.fetch(name, 0) else # this branch is reached by two tests: # @@ -79,10 +77,7 @@ module ActiveRecord end end - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - attr_reader :aliases + attr_reader :aliases private diff --git a/activerecord/lib/active_record/associations/association_scope.rb b/activerecord/lib/active_record/associations/association_scope.rb index b2dc044312..11967e0571 100644 --- a/activerecord/lib/active_record/associations/association_scope.rb +++ b/activerecord/lib/active_record/associations/association_scope.rb @@ -23,8 +23,7 @@ module ActiveRecord reflection = association.reflection scope = klass.unscoped owner = association.owner - alias_tracker = AliasTracker.create(klass.connection, klass.table_name) - chain = get_chain(reflection, association, alias_tracker) + chain = get_chain(reflection, association, scope.alias_tracker) scope.extending! reflection.extensions add_constraints(scope, owner, chain) diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index 496b16b58f..ca3032d967 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -38,11 +38,6 @@ module ActiveRecord::Associations::Builder # :nodoc: def self.create_reflection(model, name, scope, options, extension = nil) raise ArgumentError, "association names must be a Symbol" unless name.kind_of?(Symbol) - if scope.is_a?(Hash) - options = scope - scope = nil - end - validate_options(options) scope = build_scope(scope, extension) diff --git a/activerecord/lib/active_record/associations/builder/collection_association.rb b/activerecord/lib/active_record/associations/builder/collection_association.rb index 753fde5146..35a72c3850 100644 --- a/activerecord/lib/active_record/associations/builder/collection_association.rb +++ b/activerecord/lib/active_record/associations/builder/collection_association.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "../../associations" +require "active_record/associations" module ActiveRecord::Associations::Builder # :nodoc: class CollectionAssociation < Association #:nodoc: diff --git a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb index 12fcfbcd45..1981da11a2 100644 --- a/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb +++ b/activerecord/lib/active_record/associations/builder/has_and_belongs_to_many.rb @@ -47,7 +47,7 @@ module ActiveRecord::Associations::Builder # :nodoc: habtm = JoinTableResolver.build lhs_model, association_name, options join_model = Class.new(ActiveRecord::Base) { - class << self; + class << self attr_accessor :left_model attr_accessor :name attr_accessor :table_name_resolver diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index ceedf150e3..921237a735 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -79,7 +79,13 @@ module ActiveRecord def find(*args) if options[:inverse_of] && loaded? args_flatten = args.flatten - raise RecordNotFound, "Couldn't find #{scope.klass.name} without an ID" if args_flatten.blank? + model = scope.klass + + if args_flatten.blank? + error_message = "Couldn't find #{model.name} without an ID" + raise RecordNotFound.new(error_message, model.name, model.primary_key, args) + end + result = find_by_scan(*args) result_size = Array(result).size @@ -181,8 +187,6 @@ module ActiveRecord # are actually removed from the database, that depends precisely on # +delete_records+. They are in any case removed from the collection. def delete(*records) - return if records.empty? - records = find(records) if records.any? { |record| record.kind_of?(Integer) || record.kind_of?(String) } delete_or_destroy(records, options[:dependent]) end @@ -192,8 +196,6 @@ module ActiveRecord # Note that this method removes records from the database ignoring the # +:dependent+ option. def destroy(*records) - return if records.empty? - records = find(records) if records.any? { |record| record.kind_of?(Integer) || record.kind_of?(String) } delete_or_destroy(records, :destroy) end @@ -376,6 +378,8 @@ module ActiveRecord end def delete_or_destroy(records, method) + return if records.empty? + records = find(records) if records.any? { |record| record.kind_of?(Integer) || record.kind_of?(String) } records = records.flatten records.each { |record| raise_on_type_mismatch!(record) } existing_records = records.reject(&:new_record?) diff --git a/activerecord/lib/active_record/associations/collection_proxy.rb b/activerecord/lib/active_record/associations/collection_proxy.rb index 412e89255d..8b4a48a38c 100644 --- a/activerecord/lib/active_record/associations/collection_proxy.rb +++ b/activerecord/lib/active_record/associations/collection_proxy.rb @@ -988,6 +988,12 @@ module ActiveRecord load_target == other end + ## + # :method: to_ary + # + # :call-seq: + # to_ary() + # # Returns a new array of objects from the collection. If the collection # hasn't been loaded, it fetches the records from the database. # @@ -1021,10 +1027,6 @@ module ActiveRecord # # #<Pet id: 5, name: "Brain", person_id: 1>, # # #<Pet id: 6, name: "Boss", person_id: 1> # # ] - def to_ary - load_target.dup - end - alias_method :to_a, :to_ary def records # :nodoc: load_target @@ -1072,7 +1074,6 @@ module ActiveRecord end # Reloads the collection from the database. Returns +self+. - # Equivalent to <tt>collection(true)</tt>. # # class Person < ActiveRecord::Base # has_many :pets @@ -1086,9 +1087,6 @@ module ActiveRecord # # person.pets.reload # fetches pets from the database # # => [#<Pet id: 1, name: "Snoop", group: "dogs", person_id: 1>] - # - # person.pets(true) # fetches pets from the database - # # => [#<Pet id: 1, name: "Snoop", group: "dogs", person_id: 1>] def reload proxy_association.reload reset_scope diff --git a/activerecord/lib/active_record/associations/join_dependency.rb b/activerecord/lib/active_record/associations/join_dependency.rb index 77b3d11b47..df4bf07999 100644 --- a/activerecord/lib/active_record/associations/join_dependency.rb +++ b/activerecord/lib/active_record/associations/join_dependency.rb @@ -43,8 +43,6 @@ module ActiveRecord Column = Struct.new(:name, :alias) end - attr_reader :alias_tracker, :base_klass, :join_root - def self.make_tree(associations) hash = {} walk_tree associations, hash @@ -90,8 +88,8 @@ module ActiveRecord # associations # => [:appointments] # joins # => [] # - def initialize(base, table, associations, joins, eager_loading: true) - @alias_tracker = AliasTracker.create_with_joins(base.connection, base.table_name, joins) + def initialize(base, table, associations, alias_tracker, eager_loading: true) + @alias_tracker = alias_tracker @eager_loading = eager_loading tree = self.class.make_tree associations @join_root = JoinBase.new(base, table, build(tree, base)) @@ -158,6 +156,9 @@ module ActiveRecord parents.values end + protected + attr_reader :alias_tracker, :base_klass, :join_root + private def make_constraints(parent, child, tables, join_type) @@ -224,7 +225,7 @@ module ActiveRecord raise EagerLoadPolymorphicError.new(reflection) end - JoinAssociation.new reflection, build(right, reflection.klass) + JoinAssociation.new(reflection, build(right, reflection.klass), alias_tracker) end.compact end diff --git a/activerecord/lib/active_record/associations/join_dependency/join_association.rb b/activerecord/lib/active_record/associations/join_dependency/join_association.rb index a526468bf6..221c791bf8 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_association.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_association.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "join_part" +require "active_record/associations/join_dependency/join_part" module ActiveRecord module Associations @@ -11,11 +11,12 @@ module ActiveRecord attr_accessor :tables - def initialize(reflection, children) + def initialize(reflection, children, alias_tracker) super(reflection.klass, children) - @reflection = reflection - @tables = nil + @alias_tracker = alias_tracker + @reflection = reflection + @tables = nil end def match?(other) @@ -38,11 +39,12 @@ module ActiveRecord joins << table.create_join(table, table.create_on(constraint), join_type) join_scope = reflection.join_scope(table, foreign_klass) + arel = join_scope.arel(alias_tracker.aliases) - if join_scope.arel.constraints.any? - joins.concat join_scope.arel.join_sources + if arel.constraints.any? + joins.concat arel.join_sources right = joins.last.right - right.expr = right.expr.and(join_scope.arel.constraints) + right.expr = right.expr.and(arel.constraints) end # The current table in this iteration becomes the foreign table in the next @@ -55,6 +57,9 @@ module ActiveRecord def table tables.first end + + protected + attr_reader :alias_tracker end end end diff --git a/activerecord/lib/active_record/associations/join_dependency/join_base.rb b/activerecord/lib/active_record/associations/join_dependency/join_base.rb index 8a8fa8993b..988b4e8fa2 100644 --- a/activerecord/lib/active_record/associations/join_dependency/join_base.rb +++ b/activerecord/lib/active_record/associations/join_dependency/join_base.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "join_part" +require "active_record/associations/join_dependency/join_part" module ActiveRecord module Associations diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 62caf02a2c..e1087be9b3 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -44,16 +44,8 @@ module ActiveRecord extend ActiveSupport::Autoload eager_autoload do - autoload :Association, "active_record/associations/preloader/association" - autoload :SingularAssociation, "active_record/associations/preloader/singular_association" - autoload :CollectionAssociation, "active_record/associations/preloader/collection_association" - autoload :ThroughAssociation, "active_record/associations/preloader/through_association" - - autoload :HasMany, "active_record/associations/preloader/has_many" - autoload :HasManyThrough, "active_record/associations/preloader/has_many_through" - autoload :HasOne, "active_record/associations/preloader/has_one" - autoload :HasOneThrough, "active_record/associations/preloader/has_one_through" - autoload :BelongsTo, "active_record/associations/preloader/belongs_to" + autoload :Association, "active_record/associations/preloader/association" + autoload :ThroughAssociation, "active_record/associations/preloader/through_association" end # Eager loads the named associations for the given Active Record record(s). @@ -91,13 +83,13 @@ module ActiveRecord # { author: :avatar } # [ :books, { author: :avatar } ] def preload(records, associations, preload_scope = nil) - records = Array.wrap(records).compact.uniq - associations = Array.wrap(associations) + records = records.compact if records.empty? [] else - associations.flat_map { |association| + records.uniq! + Array.wrap(associations).flat_map { |association| preloaders_on association, records, preload_scope } end @@ -166,8 +158,6 @@ module ActiveRecord end class AlreadyLoaded # :nodoc: - attr_reader :owners, :reflection - def initialize(klass, owners, reflection, preload_scope) @owners = owners @reflection = reflection @@ -178,11 +168,13 @@ module ActiveRecord def preloaded_records owners.flat_map { |owner| owner.association(reflection.name).target } end + + protected + attr_reader :owners, :reflection end # Returns a class containing the logic needed to load preload the data - # and attach it to a relation. For example +Preloader::Association+ or - # +Preloader::HasManyThrough+. The class returned implements a `run` method + # and attach it to a relation. The class returned implements a `run` method # that accepts a preloader. def preloader_for(reflection, owners) if owners.first.association(reflection.name).loaded? @@ -190,13 +182,10 @@ module ActiveRecord end reflection.check_preloadable! - case reflection.macro - when :has_many - reflection.options[:through] ? HasManyThrough : HasMany - when :has_one - reflection.options[:through] ? HasOneThrough : HasOne - when :belongs_to - BelongsTo + if reflection.options[:through] + ThroughAssociation + else + Association end end end diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb index 9bb6a613e1..735da152b7 100644 --- a/activerecord/lib/active_record/associations/preloader/association.rb +++ b/activerecord/lib/active_record/associations/preloader/association.rb @@ -4,7 +4,6 @@ module ActiveRecord module Associations class Preloader class Association #:nodoc: - attr_reader :owners, :reflection, :preload_scope, :model, :klass attr_reader :preloaded_records def initialize(klass, owners, reflection, preload_scope) @@ -17,55 +16,50 @@ module ActiveRecord end def run(preloader) - preload(preloader) - end - - def preload(preloader) - raise NotImplementedError - end + records = load_records do |record| + owner = owners_by_key[convert_key(record[association_key_name])] + association = owner.association(reflection.name) + association.set_inverse_instance(record) + end - # The name of the key on the associated records - def association_key_name - raise NotImplementedError + owners.each do |owner| + associate_records_to_owner(owner, records[convert_key(owner[owner_key_name])] || []) + end end - # The name of the key on the model which declares the association - def owner_key_name - raise NotImplementedError - end + protected + attr_reader :owners, :reflection, :preload_scope, :model, :klass private - def options - reflection.options + # The name of the key on the associated records + def association_key_name + reflection.join_primary_key(klass) end - def associated_records_by_owner(preloader) - records = load_records do |record| - owner = owners_by_key[convert_key(record[association_key_name])] - association = owner.association(reflection.name) - association.set_inverse_instance(record) - end + # The name of the key on the model which declares the association + def owner_key_name + reflection.join_foreign_key + end - owners.each_with_object({}) do |owner, result| - result[owner] = records[convert_key(owner[owner_key_name])] || [] + def associate_records_to_owner(owner, records) + association = owner.association(reflection.name) + if reflection.collection? + association.loaded! + association.target.concat(records) + else + association.target = records.first end end def owner_keys - unless defined?(@owner_keys) - @owner_keys = owners.map do |owner| - owner[owner_key_name] - end - @owner_keys.uniq! - @owner_keys.compact! - end - @owner_keys + @owner_keys ||= owners_by_key.keys end def owners_by_key unless defined?(@owners_by_key) @owners_by_key = owners.each_with_object({}) do |owner, h| - h[convert_key(owner[owner_key_name])] = owner + key = convert_key(owner[owner_key_name]) + h[key] = owner if key end end @owners_by_key diff --git a/activerecord/lib/active_record/associations/preloader/belongs_to.rb b/activerecord/lib/active_record/associations/preloader/belongs_to.rb deleted file mode 100644 index ae9695f26a..0000000000 --- a/activerecord/lib/active_record/associations/preloader/belongs_to.rb +++ /dev/null @@ -1,17 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class BelongsTo < SingularAssociation #:nodoc: - def association_key_name - options[:primary_key] || klass && klass.primary_key - end - - def owner_key_name - reflection.foreign_key - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/collection_association.rb b/activerecord/lib/active_record/associations/preloader/collection_association.rb deleted file mode 100644 index fb920a642c..0000000000 --- a/activerecord/lib/active_record/associations/preloader/collection_association.rb +++ /dev/null @@ -1,19 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class CollectionAssociation < Association #:nodoc: - private - - def preload(preloader) - associated_records_by_owner(preloader).each do |owner, records| - association = owner.association(reflection.name) - association.loaded! - association.target.concat(records) - end - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/has_many.rb b/activerecord/lib/active_record/associations/preloader/has_many.rb deleted file mode 100644 index 29a1ce099d..0000000000 --- a/activerecord/lib/active_record/associations/preloader/has_many.rb +++ /dev/null @@ -1,17 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class HasMany < CollectionAssociation #:nodoc: - def association_key_name - reflection.foreign_key - end - - def owner_key_name - reflection.active_record_primary_key - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/has_many_through.rb b/activerecord/lib/active_record/associations/preloader/has_many_through.rb deleted file mode 100644 index 0639fdca44..0000000000 --- a/activerecord/lib/active_record/associations/preloader/has_many_through.rb +++ /dev/null @@ -1,21 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class HasManyThrough < CollectionAssociation #:nodoc: - include ThroughAssociation - - def associated_records_by_owner(preloader) - records_by_owner = super - - if reflection_scope.distinct_value - records_by_owner.each_value(&:uniq!) - end - - records_by_owner - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/has_one.rb b/activerecord/lib/active_record/associations/preloader/has_one.rb deleted file mode 100644 index d87abf630f..0000000000 --- a/activerecord/lib/active_record/associations/preloader/has_one.rb +++ /dev/null @@ -1,17 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class HasOne < SingularAssociation #:nodoc: - def association_key_name - reflection.foreign_key - end - - def owner_key_name - reflection.active_record_primary_key - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/has_one_through.rb b/activerecord/lib/active_record/associations/preloader/has_one_through.rb deleted file mode 100644 index 17734d0257..0000000000 --- a/activerecord/lib/active_record/associations/preloader/has_one_through.rb +++ /dev/null @@ -1,11 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class HasOneThrough < SingularAssociation #:nodoc: - include ThroughAssociation - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/singular_association.rb b/activerecord/lib/active_record/associations/preloader/singular_association.rb deleted file mode 100644 index 266b5f6b1c..0000000000 --- a/activerecord/lib/active_record/associations/preloader/singular_association.rb +++ /dev/null @@ -1,20 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - module Associations - class Preloader - class SingularAssociation < Association #:nodoc: - private - - def preload(preloader) - associated_records_by_owner(preloader).each do |owner, associated_records| - record = associated_records.first - - association = owner.association(reflection.name) - association.target = record - end - end - end - end - end -end diff --git a/activerecord/lib/active_record/associations/preloader/through_association.rb b/activerecord/lib/active_record/associations/preloader/through_association.rb index 8aac00d910..a6b7ab80a2 100644 --- a/activerecord/lib/active_record/associations/preloader/through_association.rb +++ b/activerecord/lib/active_record/associations/preloader/through_association.rb @@ -3,84 +3,60 @@ module ActiveRecord module Associations class Preloader - module ThroughAssociation #:nodoc: - def through_reflection - reflection.through_reflection - end - - def source_reflection - reflection.source_reflection - end - - def associated_records_by_owner(preloader) - through_scope = through_scope() - - preloader.preload(owners, - through_reflection.name, - through_scope) - - through_records = owners.map do |owner| - center = owner.association(through_reflection.name).target - [owner, Array(center)] - end - - reset_association(owners, through_reflection.name, through_scope) - - middle_records = through_records.flat_map(&:last) - - preloaders = preloader.preload(middle_records, - source_reflection.name, - reflection_scope) - + class ThroughAssociation < Association # :nodoc: + def run(preloader) + already_loaded = owners.first.association(through_reflection.name).loaded? + through_scope = through_scope() + reflection_scope = target_reflection_scope + through_preloaders = preloader.preload(owners, through_reflection.name, through_scope) + middle_records = through_preloaders.flat_map(&:preloaded_records) + preloaders = preloader.preload(middle_records, source_reflection.name, reflection_scope) @preloaded_records = preloaders.flat_map(&:preloaded_records) - middle_to_pl = preloaders.each_with_object({}) do |pl, h| - pl.owners.each { |middle| - h[middle] = pl - } - end - - through_records.each_with_object({}) do |(lhs, center), records_by_owner| - pl_to_middle = center.group_by { |record| middle_to_pl[record] } - - records_by_owner[lhs] = pl_to_middle.flat_map do |pl, middles| - rhs_records = middles.flat_map { |r| - r.association(source_reflection.name).target - }.compact - - # Respect the order on `reflection_scope` if it exists, else use the natural order. - if reflection_scope.values[:order].present? - @id_map ||= id_to_index_map @preloaded_records - rhs_records.sort_by { |rhs| @id_map[rhs] } - else - rhs_records + owners.each do |owner| + through_records = Array(owner.association(through_reflection.name).target) + if already_loaded + if source_type = reflection.options[:source_type] + through_records = through_records.select do |record| + record[reflection.foreign_type] == source_type + end end + else + owner.association(through_reflection.name).reset if through_scope + end + result = through_records.flat_map do |record| + association = record.association(source_reflection.name) + target = association.target + association.reset if preload_scope + target + end + result.compact! + if reflection_scope + result.sort_by! { |rhs| preload_index[rhs] } if reflection_scope.order_values.any? + result.uniq! if reflection_scope.distinct_value end + associate_records_to_owner(owner, result) end end private - - def id_to_index_map(ids) - id_map = {} - ids.each_with_index { |id, index| id_map[id] = index } - id_map + def through_reflection + reflection.through_reflection end - def reset_association(owners, association_name, through_scope) - should_reset = (through_scope != through_reflection.klass.unscoped) || - (options[:source_type] && through_reflection.collection?) + def source_reflection + reflection.source_reflection + end - # Don't cache the association - we would only be caching a subset - if should_reset - owners.each { |owner| - owner.association(association_name).reset - } + def preload_index + @preload_index ||= @preloaded_records.each_with_object({}).with_index do |(id, result), index| + result[id] = index end end def through_scope scope = through_reflection.klass.unscoped + options = reflection.options if options[:source_type] scope.where! reflection.foreign_type => options[:source_type] @@ -113,7 +89,17 @@ module ActiveRecord end end - scope + scope unless scope.empty_scope? + end + + def target_reflection_scope + if preload_scope + reflection_scope.merge(preload_scope) + elsif reflection.scope + reflection_scope + else + nil + end end end end diff --git a/activerecord/lib/active_record/attribute.rb b/activerecord/lib/active_record/attribute.rb deleted file mode 100644 index fc474edc15..0000000000 --- a/activerecord/lib/active_record/attribute.rb +++ /dev/null @@ -1,242 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - class Attribute # :nodoc: - class << self - def from_database(name, value, type) - FromDatabase.new(name, value, type) - end - - def from_user(name, value, type, original_attribute = nil) - FromUser.new(name, value, type, original_attribute) - end - - def with_cast_value(name, value, type) - WithCastValue.new(name, value, type) - end - - def null(name) - Null.new(name) - end - - def uninitialized(name, type) - Uninitialized.new(name, type) - end - end - - attr_reader :name, :value_before_type_cast, :type - - # This method should not be called directly. - # Use #from_database or #from_user - def initialize(name, value_before_type_cast, type, original_attribute = nil) - @name = name - @value_before_type_cast = value_before_type_cast - @type = type - @original_attribute = original_attribute - end - - def value - # `defined?` is cheaper than `||=` when we get back falsy values - @value = type_cast(value_before_type_cast) unless defined?(@value) - @value - end - - def original_value - if assigned? - original_attribute.original_value - else - type_cast(value_before_type_cast) - end - end - - def value_for_database - type.serialize(value) - end - - def changed? - changed_from_assignment? || changed_in_place? - end - - def changed_in_place? - has_been_read? && type.changed_in_place?(original_value_for_database, value) - end - - def forgetting_assignment - with_value_from_database(value_for_database) - end - - def with_value_from_user(value) - type.assert_valid_value(value) - self.class.from_user(name, value, type, original_attribute || self) - end - - def with_value_from_database(value) - self.class.from_database(name, value, type) - end - - def with_cast_value(value) - self.class.with_cast_value(name, value, type) - end - - def with_type(type) - if changed_in_place? - with_value_from_user(value).with_type(type) - else - self.class.new(name, value_before_type_cast, type, original_attribute) - end - end - - def type_cast(*) - raise NotImplementedError - end - - def initialized? - true - end - - def came_from_user? - false - end - - def has_been_read? - defined?(@value) - end - - def ==(other) - self.class == other.class && - name == other.name && - value_before_type_cast == other.value_before_type_cast && - type == other.type - end - alias eql? == - - def hash - [self.class, name, value_before_type_cast, type].hash - end - - def init_with(coder) - @name = coder["name"] - @value_before_type_cast = coder["value_before_type_cast"] - @type = coder["type"] - @original_attribute = coder["original_attribute"] - @value = coder["value"] if coder.map.key?("value") - end - - def encode_with(coder) - coder["name"] = name - coder["value_before_type_cast"] = value_before_type_cast unless value_before_type_cast.nil? - coder["type"] = type if type - coder["original_attribute"] = original_attribute if original_attribute - coder["value"] = value if defined?(@value) - end - - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :original_attribute - alias_method :assigned?, :original_attribute - - def original_value_for_database - if assigned? - original_attribute.original_value_for_database - else - _original_value_for_database - end - end - - private - def initialize_dup(other) - if defined?(@value) && @value.duplicable? - @value = @value.dup - end - end - - def changed_from_assignment? - assigned? && type.changed?(original_value, value, value_before_type_cast) - end - - def _original_value_for_database - type.serialize(original_value) - end - - class FromDatabase < Attribute # :nodoc: - def type_cast(value) - type.deserialize(value) - end - - def _original_value_for_database - value_before_type_cast - end - end - - class FromUser < Attribute # :nodoc: - def type_cast(value) - type.cast(value) - end - - def came_from_user? - !type.value_constructed_by_mass_assignment?(value_before_type_cast) - end - end - - class WithCastValue < Attribute # :nodoc: - def type_cast(value) - value - end - - def changed_in_place? - false - end - end - - class Null < Attribute # :nodoc: - def initialize(name) - super(name, nil, Type.default_value) - end - - def type_cast(*) - nil - end - - def with_type(type) - self.class.with_cast_value(name, nil, type) - 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: - UNINITIALIZED_ORIGINAL_VALUE = Object.new - - def initialize(name, type) - super(name, nil, type) - end - - def value - if block_given? - yield name - end - end - - def original_value - UNINITIALIZED_ORIGINAL_VALUE - end - - def value_for_database - end - - def initialized? - false - end - - def with_type(type) - self.class.new(name, type) - end - end - private_constant :FromDatabase, :FromUser, :Null, :Uninitialized, :WithCastValue - end -end diff --git a/activerecord/lib/active_record/attribute/user_provided_default.rb b/activerecord/lib/active_record/attribute/user_provided_default.rb deleted file mode 100644 index 690a931615..0000000000 --- a/activerecord/lib/active_record/attribute/user_provided_default.rb +++ /dev/null @@ -1,32 +0,0 @@ -# frozen_string_literal: true - -require_relative "../attribute" - -module ActiveRecord - class Attribute # :nodoc: - class UserProvidedDefault < FromUser # :nodoc: - def initialize(name, value, type, database_default) - @user_provided_value = value - super(name, value, type, database_default) - end - - def value_before_type_cast - if user_provided_value.is_a?(Proc) - @memoized_value_before_type_cast ||= user_provided_value.call - else - @user_provided_value - end - end - - def with_type(type) - self.class.new(name, user_provided_value, type, original_attribute) - end - - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :user_provided_value - end - end -end diff --git a/activerecord/lib/active_record/attribute_methods.rb b/activerecord/lib/active_record/attribute_methods.rb index e4ca6c8408..64f81ca582 100644 --- a/activerecord/lib/active_record/attribute_methods.rb +++ b/activerecord/lib/active_record/attribute_methods.rb @@ -33,7 +33,9 @@ module ActiveRecord BLACKLISTED_CLASS_METHODS = %w(private public protected allocate new name parent superclass) - class GeneratedAttributeMethods < Module; end # :nodoc: + class GeneratedAttributeMethods < Module #:nodoc: + include Mutex_m + end module ClassMethods def inherited(child_class) #:nodoc: @@ -42,7 +44,7 @@ module ActiveRecord end def initialize_generated_modules # :nodoc: - @generated_attribute_methods = GeneratedAttributeMethods.new { extend Mutex_m } + @generated_attribute_methods = GeneratedAttributeMethods.new @attribute_methods_generated = false include @generated_attribute_methods @@ -165,6 +167,46 @@ module ActiveRecord end end + # Regexp whitelist. Matches the following: + # "#{table_name}.#{column_name}" + # "#{column_name}" + COLUMN_NAME_WHITELIST = /\A(?:\w+\.)?\w+\z/i + + # Regexp whitelist. Matches the following: + # "#{table_name}.#{column_name}" + # "#{table_name}.#{column_name} #{direction}" + # "#{column_name}" + # "#{column_name} #{direction}" + COLUMN_NAME_ORDER_WHITELIST = /\A(?:\w+\.)?\w+(?:\s+asc|\s+desc)?\z/i + + def enforce_raw_sql_whitelist(args, whitelist: COLUMN_NAME_WHITELIST) # :nodoc: + unexpected = args.reject do |arg| + arg.kind_of?(Arel::Node) || + arg.is_a?(Arel::Nodes::SqlLiteral) || + arg.is_a?(Arel::Attributes::Attribute) || + arg.to_s.split(/\s*,\s*/).all? { |part| whitelist.match?(part) } + end + + return if unexpected.none? + + if allow_unsafe_raw_sql == :deprecated + ActiveSupport::Deprecation.warn( + "Dangerous query method (method whose arguments are used as raw " \ + "SQL) called with non-attribute argument(s): " \ + "#{unexpected.map(&:inspect).join(", ")}. Non-attribute " \ + "arguments will be disallowed in Rails 6.0. This method should " \ + "not be called with user-provided values, such as request " \ + "parameters or model attributes. Known-safe values can be passed " \ + "by wrapping them in Arel.sql()." + ) + else + raise(ActiveRecord::UnknownAttributeReference, + "Query method called with non-attribute argument(s): " + + unexpected.map(&:inspect).join(", ") + ) + end + end + # Returns true if the given attribute exists, otherwise false. # # class Person < ActiveRecord::Base @@ -234,7 +276,7 @@ module ActiveRecord return has_attribute?(name) end - return true + true end # Returns +true+ if the given attribute is in the attributes hash, otherwise +false+. diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb index 4f957ac3ca..3de6fe566d 100644 --- a/activerecord/lib/active_record/attribute_methods/dirty.rb +++ b/activerecord/lib/active_record/attribute_methods/dirty.rb @@ -1,7 +1,6 @@ # frozen_string_literal: true require "active_support/core_ext/module/attribute_accessors" -require_relative "../attribute_mutation_tracker" module ActiveRecord module AttributeMethods @@ -33,66 +32,13 @@ module ActiveRecord # <tt>reload</tt> the record and clears changed attributes. def reload(*) super.tap do + @previously_changed = ActiveSupport::HashWithIndifferentAccess.new @mutations_before_last_save = nil - clear_mutation_trackers - @changed_attributes = ActiveSupport::HashWithIndifferentAccess.new - end - end - - def initialize_dup(other) # :nodoc: - super - @attributes = self.class._default_attributes.map do |attr| - attr.with_value_from_user(@attributes.fetch_value(attr.name)) - end - clear_mutation_trackers - end - - def changes_applied # :nodoc: - @mutations_before_last_save = mutation_tracker - @mutations_from_database = AttributeMutationTracker.new(@attributes) - @changed_attributes = ActiveSupport::HashWithIndifferentAccess.new - forget_attribute_assignments - clear_mutation_trackers - end - - def clear_changes_information # :nodoc: - @mutations_before_last_save = nil - @changed_attributes = ActiveSupport::HashWithIndifferentAccess.new - forget_attribute_assignments - clear_mutation_trackers - end - - def clear_attribute_changes(attr_names) # :nodoc: - super - attr_names.each do |attr_name| - clear_attribute_change(attr_name) - end - end - - def changed_attributes # :nodoc: - # This should only be set by methods which will call changed_attributes - # multiple times when it is known that the computed value cannot change. - if defined?(@cached_changed_attributes) - @cached_changed_attributes - else - super.reverse_merge(mutation_tracker.changed_values).freeze - end - end - - def changes # :nodoc: - cache_changed_attributes do - super + @attributes_changed_by_setter = ActiveSupport::HashWithIndifferentAccess.new + @mutations_from_database = nil end end - def previous_changes # :nodoc: - mutations_before_last_save.changes - end - - def attribute_changed_in_place?(attr_name) # :nodoc: - mutation_tracker.changed_in_place?(attr_name) - end - # Did this attribute change when we last saved? This method can be invoked # as +saved_change_to_name?+ instead of <tt>saved_change_to_attribute?("name")</tt>. # Behaves similarly to +attribute_changed?+. This method is useful in @@ -183,34 +129,6 @@ module ActiveRecord result end - def mutation_tracker - unless defined?(@mutation_tracker) - @mutation_tracker = nil - end - @mutation_tracker ||= AttributeMutationTracker.new(@attributes) - end - - def mutations_from_database - unless defined?(@mutations_from_database) - @mutations_from_database = nil - end - @mutations_from_database ||= mutation_tracker - end - - def changes_include?(attr_name) - super || mutation_tracker.changed?(attr_name) - end - - def clear_attribute_change(attr_name) - mutation_tracker.forget_change(attr_name) - mutations_from_database.forget_change(attr_name) - end - - def attribute_will_change!(attr_name) - super - mutations_from_database.force_change(attr_name) - end - def _update_record(*) partial_writes? ? super(keys_for_partial_write) : super end @@ -222,30 +140,6 @@ module ActiveRecord def keys_for_partial_write changed_attribute_names_to_save & self.class.column_names end - - def forget_attribute_assignments - @attributes = @attributes.map(&:forgetting_assignment) - end - - def clear_mutation_trackers - @mutation_tracker = nil - @mutations_from_database = nil - end - - def mutations_before_last_save - @mutations_before_last_save ||= NullMutationTracker.instance - end - - def cache_changed_attributes - @cached_changed_attributes = changed_attributes - yield - ensure - clear_changed_attributes_cache - end - - def clear_changed_attributes_cache - remove_instance_variable(:@cached_changed_attributes) if defined?(@cached_changed_attributes) - end end end end diff --git a/activerecord/lib/active_record/attribute_methods/primary_key.rb b/activerecord/lib/active_record/attribute_methods/primary_key.rb index 63c059e291..d8fc046e10 100644 --- a/activerecord/lib/active_record/attribute_methods/primary_key.rb +++ b/activerecord/lib/active_record/attribute_methods/primary_key.rb @@ -17,13 +17,15 @@ module ActiveRecord # Returns the primary key value. def id sync_with_transaction_state - _read_attribute(self.class.primary_key) if self.class.primary_key + primary_key = self.class.primary_key + _read_attribute(primary_key) if primary_key end # Sets the primary key value. def id=(value) sync_with_transaction_state - _write_attribute(self.class.primary_key, value) if self.class.primary_key + primary_key = self.class.primary_key + _write_attribute(primary_key, value) if primary_key end # Queries the primary key value. diff --git a/activerecord/lib/active_record/attribute_methods/read.rb b/activerecord/lib/active_record/attribute_methods/read.rb index b070235684..4077250583 100644 --- a/activerecord/lib/active_record/attribute_methods/read.rb +++ b/activerecord/lib/active_record/attribute_methods/read.rb @@ -58,8 +58,9 @@ module ActiveRecord attr_name.to_s end - name = self.class.primary_key if name == "id".freeze && self.class.primary_key - sync_with_transaction_state if name == self.class.primary_key + primary_key = self.class.primary_key + name = primary_key if name == "id".freeze && primary_key + sync_with_transaction_state if name == primary_key _read_attribute(name, &block) end diff --git a/activerecord/lib/active_record/attribute_methods/write.rb b/activerecord/lib/active_record/attribute_methods/write.rb index 37891ce2ef..bb0ec6a8c3 100644 --- a/activerecord/lib/active_record/attribute_methods/write.rb +++ b/activerecord/lib/active_record/attribute_methods/write.rb @@ -39,8 +39,9 @@ module ActiveRecord attr_name.to_s end - name = self.class.primary_key if name == "id".freeze && self.class.primary_key - sync_with_transaction_state if name == self.class.primary_key + primary_key = self.class.primary_key + name = primary_key if name == "id".freeze && primary_key + sync_with_transaction_state if name == primary_key _write_attribute(name, value) end diff --git a/activerecord/lib/active_record/attribute_mutation_tracker.rb b/activerecord/lib/active_record/attribute_mutation_tracker.rb deleted file mode 100644 index 94bf641a5d..0000000000 --- a/activerecord/lib/active_record/attribute_mutation_tracker.rb +++ /dev/null @@ -1,111 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - class AttributeMutationTracker # :nodoc: - OPTION_NOT_GIVEN = Object.new - - def initialize(attributes) - @attributes = attributes - @forced_changes = Set.new - end - - def changed_values - attr_names.each_with_object({}.with_indifferent_access) do |attr_name, result| - if changed?(attr_name) - result[attr_name] = attributes[attr_name].original_value - end - end - end - - def changes - attr_names.each_with_object({}.with_indifferent_access) do |attr_name, result| - change = change_to_attribute(attr_name) - if change - result[attr_name] = change - end - end - end - - def change_to_attribute(attr_name) - attr_name = attr_name.to_s - if changed?(attr_name) - [attributes[attr_name].original_value, attributes.fetch_value(attr_name)] - end - end - - def any_changes? - attr_names.any? { |attr| changed?(attr) } - end - - def changed?(attr_name, from: OPTION_NOT_GIVEN, to: OPTION_NOT_GIVEN) - attr_name = attr_name.to_s - forced_changes.include?(attr_name) || - attributes[attr_name].changed? && - (OPTION_NOT_GIVEN == from || attributes[attr_name].original_value == from) && - (OPTION_NOT_GIVEN == to || attributes[attr_name].value == to) - end - - def changed_in_place?(attr_name) - attributes[attr_name.to_s].changed_in_place? - end - - def forget_change(attr_name) - attr_name = attr_name.to_s - attributes[attr_name] = attributes[attr_name].forgetting_assignment - forced_changes.delete(attr_name) - end - - def original_value(attr_name) - attributes[attr_name.to_s].original_value - end - - def force_change(attr_name) - forced_changes << attr_name.to_s - end - - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :attributes, :forced_changes - - private - - def attr_names - attributes.keys - end - end - - class NullMutationTracker # :nodoc: - include Singleton - - def changed_values(*) - {} - end - - def changes(*) - {} - end - - def change_to_attribute(attr_name) - end - - def any_changes?(*) - false - end - - def changed?(*) - false - end - - def changed_in_place?(*) - false - end - - def forget_change(*) - end - - def original_value(*) - end - end -end diff --git a/activerecord/lib/active_record/attribute_set.rb b/activerecord/lib/active_record/attribute_set.rb deleted file mode 100644 index 492067e2b3..0000000000 --- a/activerecord/lib/active_record/attribute_set.rb +++ /dev/null @@ -1,113 +0,0 @@ -# frozen_string_literal: true - -require_relative "attribute_set/builder" -require_relative "attribute_set/yaml_encoder" - -module ActiveRecord - class AttributeSet # :nodoc: - delegate :each_value, :fetch, to: :attributes - - def initialize(attributes) - @attributes = attributes - end - - def [](name) - attributes[name] || Attribute.null(name) - end - - def []=(name, value) - attributes[name] = value - end - - def values_before_type_cast - attributes.transform_values(&:value_before_type_cast) - end - - def to_hash - initialized_attributes.transform_values(&:value) - end - alias_method :to_h, :to_hash - - def key?(name) - attributes.key?(name) && self[name].initialized? - end - - def keys - attributes.each_key.select { |name| self[name].initialized? } - end - - if defined?(JRUBY_VERSION) - # This form is significantly faster on JRuby, and this is one of our biggest hotspots. - # https://github.com/jruby/jruby/pull/2562 - def fetch_value(name, &block) - self[name].value(&block) - end - else - def fetch_value(name) - self[name].value { |n| yield n if block_given? } - end - 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 write_cast_value(name, value) - attributes[name] = self[name].with_cast_value(value) - end - - def freeze - @attributes.freeze - super - end - - def deep_dup - self.class.allocate.tap do |copy| - copy.instance_variable_set(:@attributes, attributes.deep_dup) - end - end - - def initialize_dup(_) - @attributes = attributes.dup - super - end - - def initialize_clone(_) - @attributes = attributes.clone - super - end - - def reset(key) - if key?(key) - write_from_database(key, nil) - end - end - - def accessed - attributes.select { |_, attr| attr.has_been_read? }.keys - end - - def map(&block) - new_attributes = attributes.transform_values(&block) - AttributeSet.new(new_attributes) - end - - def ==(other) - attributes == other.attributes - 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 deleted file mode 100644 index e3a9c7fdb3..0000000000 --- a/activerecord/lib/active_record/attribute_set/builder.rb +++ /dev/null @@ -1,126 +0,0 @@ -# frozen_string_literal: true - -require_relative "../attribute" - -module ActiveRecord - class AttributeSet # :nodoc: - class Builder # :nodoc: - attr_reader :types, :always_initialized, :default - - def initialize(types, always_initialized = nil, &default) - @types = types - @always_initialized = always_initialized - @default = default - end - - def build_from_database(values = {}, additional_types = {}) - if always_initialized && !values.key?(always_initialized) - values[always_initialized] = nil - end - - attributes = LazyAttributeHash.new(types, values, additional_types, &default) - AttributeSet.new(attributes) - end - end - end - - class LazyAttributeHash # :nodoc: - delegate :transform_values, :each_key, :each_value, :fetch, to: :materialize - - def initialize(types, values, additional_types, &default) - @types = types - @values = values - @additional_types = additional_types - @materialized = false - @delegate_hash = {} - @default = default || proc {} - end - - def key?(key) - delegate_hash.key?(key) || values.key?(key) || types.key?(key) - end - - def [](key) - delegate_hash[key] || assign_default_value(key) - end - - def []=(key, value) - if frozen? - raise RuntimeError, "Can't modify frozen hash" - end - delegate_hash[key] = value - end - - def deep_dup - dup.tap do |copy| - copy.instance_variable_set(:@delegate_hash, delegate_hash.transform_values(&:dup)) - end - end - - def initialize_dup(_) - @delegate_hash = Hash[delegate_hash] - super - end - - def select - keys = types.keys | values.keys | delegate_hash.keys - keys.each_with_object({}) do |key, hash| - attribute = self[key] - if yield(key, attribute) - hash[key] = attribute - end - end - end - - def ==(other) - if other.is_a?(LazyAttributeHash) - materialize == other.materialize - else - materialize == other - end - end - - def marshal_dump - materialize - end - - def marshal_load(delegate_hash) - @delegate_hash = delegate_hash - @types = {} - @values = {} - @additional_types = {} - @materialized = true - end - - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :types, :values, :additional_types, :delegate_hash, :default - - def materialize - unless @materialized - values.each_key { |key| self[key] } - types.each_key { |key| self[key] } - unless frozen? - @materialized = true - end - end - delegate_hash - end - - private - - def assign_default_value(name) - type = additional_types.fetch(name, types[name]) - value_present = true - value = values.fetch(name) { value_present = false } - - if value_present - delegate_hash[name] = Attribute.from_database(name, value, type) - elsif types.key?(name) - delegate_hash[name] = default.call(name) || Attribute.uninitialized(name, type) - end - end - end -end diff --git a/activerecord/lib/active_record/attribute_set/yaml_encoder.rb b/activerecord/lib/active_record/attribute_set/yaml_encoder.rb deleted file mode 100644 index 9254ce16ab..0000000000 --- a/activerecord/lib/active_record/attribute_set/yaml_encoder.rb +++ /dev/null @@ -1,43 +0,0 @@ -# frozen_string_literal: true - -module ActiveRecord - class AttributeSet - # Attempts to do more intelligent YAML dumping of an - # ActiveRecord::AttributeSet to reduce the size of the resulting string - class YAMLEncoder # :nodoc: - def initialize(default_types) - @default_types = default_types - end - - def encode(attribute_set, coder) - coder["concise_attributes"] = attribute_set.each_value.map do |attr| - if attr.type.equal?(default_types[attr.name]) - attr.with_type(nil) - else - attr - end - end - end - - def decode(coder) - if coder["attributes"] - coder["attributes"] - else - attributes_hash = Hash[coder["concise_attributes"].map do |attr| - if attr.type.nil? - attr = attr.with_type(default_types[attr.name]) - end - [attr.name, attr] - end] - AttributeSet.new(attributes_hash) - end - end - - # TODO Change this to private once we've dropped Ruby 2.2 support. - # Workaround for Ruby 2.2 "private attribute?" warning. - protected - - attr_reader :default_types - end - end -end diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb index afb559db71..0b7c9398a8 100644 --- a/activerecord/lib/active_record/attributes.rb +++ b/activerecord/lib/active_record/attributes.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "attribute/user_provided_default" +require "active_model/attribute/user_provided_default" module ActiveRecord # See ActiveRecord::Attributes::ClassMethods for documentation @@ -250,14 +250,14 @@ module ActiveRecord if value == NO_DEFAULT_PROVIDED default_attribute = _default_attributes[name].with_type(type) elsif from_user - default_attribute = Attribute::UserProvidedDefault.new( + default_attribute = ActiveModel::Attribute::UserProvidedDefault.new( name, value, type, _default_attributes.fetch(name.to_s) { nil }, ) else - default_attribute = Attribute.from_database(name, value, type) + default_attribute = ActiveModel::Attribute.from_database(name, value, type) end _default_attributes[name] = default_attribute end diff --git a/activerecord/lib/active_record/autosave_association.rb b/activerecord/lib/active_record/autosave_association.rb index 6974cf74f6..a1250c3835 100644 --- a/activerecord/lib/active_record/autosave_association.rb +++ b/activerecord/lib/active_record/autosave_association.rb @@ -436,6 +436,9 @@ module ActiveRecord if (autosave && record.changed_for_autosave?) || new_record? || record_changed?(reflection, record, key) unless reflection.through_reflection record[reflection.foreign_key] = key + if inverse_reflection = reflection.inverse_of + record.association(inverse_reflection.name).loaded! + end end saved = record.save(validate: !autosave) diff --git a/activerecord/lib/active_record/base.rb b/activerecord/lib/active_record/base.rb index 541ff51fbe..b7ad944cec 100644 --- a/activerecord/lib/active_record/base.rb +++ b/activerecord/lib/active_record/base.rb @@ -15,14 +15,14 @@ require "active_support/core_ext/kernel/singleton_class" require "active_support/core_ext/module/introspection" require "active_support/core_ext/object/duplicable" require "active_support/core_ext/class/subclasses" -require_relative "attribute_decorators" -require_relative "define_callbacks" -require_relative "errors" -require_relative "log_subscriber" -require_relative "explain_subscriber" -require_relative "relation/delegation" -require_relative "attributes" -require_relative "type_caster" +require "active_record/attribute_decorators" +require "active_record/define_callbacks" +require "active_record/errors" +require "active_record/log_subscriber" +require "active_record/explain_subscriber" +require "active_record/relation/delegation" +require "active_record/attributes" +require "active_record/type_caster" module ActiveRecord #:nodoc: # = Active Record diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index a2439e6ec7..9ab2780760 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -98,9 +98,9 @@ module ActiveRecord # == Types of callbacks # # There are four types of callbacks accepted by the callback macros: Method references (symbol), callback objects, - # inline methods (using a proc), and inline eval methods (using a string). Method references and callback objects + # inline methods (using a proc). Method references and callback objects # are the recommended approaches, inline methods using a proc are sometimes appropriate (such as for - # creating mix-ins), and inline eval methods are deprecated. + # creating mix-ins). # # The method reference callbacks work by specifying a protected or private method available in the object, like this: # @@ -240,7 +240,7 @@ module ActiveRecord # # private # - # def log_chidren + # def log_children # # Child processing # end # @@ -265,7 +265,7 @@ module ActiveRecord # # private # - # def log_chidren + # def log_children # # Child processing # end # diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb index f3e6516414..88b398ad45 100644 --- a/activerecord/lib/active_record/collection_cache_key.rb +++ b/activerecord/lib/active_record/collection_cache_key.rb @@ -12,6 +12,9 @@ module ActiveRecord timestamp = collection.max_by(×tamp_column)._read_attribute(timestamp_column) end else + if collection.eager_loading? + collection = collection.send(:apply_join_dependency) + end column_type = type_for_attribute(timestamp_column.to_s) column = connection.column_name_from_arel_node(collection.arel_attribute(timestamp_column)) select_values = "COUNT(*) AS #{connection.quote_column_name("size")}, MAX(%s) AS timestamp" diff --git a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb index 0759f4d2b3..9849f9d5d7 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -63,15 +63,13 @@ module ActiveRecord # There are several connection-pooling-related options that you can add to # your database connection configuration: # - # * +pool+: number indicating size of connection pool (default 5) - # * +checkout_timeout+: number of seconds to block and wait for a connection - # before giving up and raising a timeout error (default 5 seconds). - # * +reaping_frequency+: frequency in seconds to periodically run the - # Reaper, which attempts to find and recover connections from dead - # threads, which can occur if a programmer forgets to close a - # connection at the end of a thread or a thread dies unexpectedly. - # Regardless of this setting, the Reaper will be invoked before every - # blocking wait. (Default +nil+, which means don't schedule the Reaper). + # * +pool+: maximum number of connections the pool may manage (default 5). + # * +idle_timeout+: number of seconds that a connection will be kept + # unused in the pool before it is automatically disconnected (default + # 300 seconds). Set this to zero to keep connections forever. + # * +checkout_timeout+: number of seconds to wait for a connection to + # become available before giving up and raising a timeout error (default + # 5 seconds). # #-- # Synchronization policy: @@ -82,11 +80,8 @@ module ActiveRecord # * private methods that require being called in a +synchronize+ blocks # are now explicitly documented class ConnectionPool - # Threadsafe, fair, FIFO queue. Meant to be used by ConnectionPool - # with which it shares a Monitor. But could be a generic Queue. - # - # The Queue in stdlib's 'thread' could replace this class except - # stdlib's doesn't support waiting with a timeout. + # Threadsafe, fair, LIFO queue. Meant to be used by ConnectionPool + # with which it shares a Monitor. class Queue def initialize(lock = Monitor.new) @lock = lock @@ -175,7 +170,7 @@ module ActiveRecord # Removes and returns the head of the queue if possible, or +nil+. def remove - @queue.shift + @queue.pop end # Remove and return the head the queue if the number of @@ -283,12 +278,12 @@ module ActiveRecord end end - # Every +frequency+ seconds, the reaper will call +reap+ on +pool+. - # A reaper instantiated with a +nil+ frequency will never reap the - # connection pool. + # Every +frequency+ seconds, the reaper will call +reap+ and +flush+ on + # +pool+. A reaper instantiated with a zero frequency will never reap + # the connection pool. # - # Configure the frequency by setting "reaping_frequency" in your - # database yaml file. + # Configure the frequency by setting +reaping_frequency+ in your database + # yaml file (default 60 seconds). class Reaper attr_reader :pool, :frequency @@ -298,11 +293,12 @@ module ActiveRecord end def run - return unless frequency + return unless frequency && frequency > 0 Thread.new(frequency, pool) { |t, p| loop do sleep t p.reap + p.flush end } end @@ -326,6 +322,10 @@ module ActiveRecord @spec = spec @checkout_timeout = (spec.config[:checkout_timeout] && spec.config[:checkout_timeout].to_f) || 5 + if @idle_timeout = spec.config.fetch(:idle_timeout, 300) + @idle_timeout = @idle_timeout.to_f + @idle_timeout = nil if @idle_timeout <= 0 + end # default max pool size to 5 @size = (spec.config[:pool] && spec.config[:pool].to_i) || 5 @@ -356,7 +356,10 @@ module ActiveRecord @lock_thread = false - @reaper = Reaper.new(self, spec.config[:reaping_frequency] && spec.config[:reaping_frequency].to_f) + # +reaping_frequency+ is configurable mostly for historical reasons, but it could + # also be useful if someone wants a very low +idle_timeout+. + reaping_frequency = spec.config.fetch(:reaping_frequency, 60) + @reaper = Reaper.new(self, reaping_frequency && reaping_frequency.to_f) @reaper.run end @@ -450,6 +453,21 @@ module ActiveRecord disconnect(false) end + # Discards all connections in the pool (even if they're currently + # leased!), along with the pool itself. Any further interaction with the + # pool (except #spec and #schema_cache) is undefined. + # + # See AbstractAdapter#discard! + def discard! # :nodoc: + synchronize do + return if @connections.nil? # already discarded + @connections.each do |conn| + conn.discard! + end + @connections = @available = @thread_cached_conns = nil + end + end + # Clears the cache which maps classes and re-connects connections that # require reloading. # @@ -575,6 +593,35 @@ module ActiveRecord end end + # Disconnect all connections that have been idle for at least + # +minimum_idle+ seconds. Connections currently checked out, or that were + # checked in less than +minimum_idle+ seconds ago, are unaffected. + def flush(minimum_idle = @idle_timeout) + return if minimum_idle.nil? + + idle_connections = synchronize do + @connections.select do |conn| + !conn.in_use? && conn.seconds_idle >= minimum_idle + end.each do |conn| + conn.lease + + @available.delete conn + @connections.delete conn + end + end + + idle_connections.each do |conn| + conn.disconnect! + end + end + + # Disconnect all currently idle connections. Connections currently checked + # out are unaffected. + def flush! + reap + flush(-1) + end + def num_waiting_in_queue # :nodoc: @available.num_waiting end @@ -866,11 +913,31 @@ module ActiveRecord # about the model. The model needs to pass a specification name to the handler, # in order to look up the correct connection pool. class ConnectionHandler + def self.unowned_pool_finalizer(pid_map) # :nodoc: + lambda do |_| + discard_unowned_pools(pid_map) + end + end + + def self.discard_unowned_pools(pid_map) # :nodoc: + pid_map.each do |pid, pools| + pools.values.compact.each(&:discard!) unless pid == Process.pid + end + end + def initialize # These caches are keyed by spec.name (ConnectionSpecification#name). @owner_to_pool = Concurrent::Map.new(initial_capacity: 2) do |h, k| + # Discard the parent's connection pools immediately; we have no need + # of them + ConnectionHandler.discard_unowned_pools(h) + h[k] = Concurrent::Map.new(initial_capacity: 2) end + + # Backup finalizer: if the forked child never needed a pool, the above + # early discard has not occurred + ObjectSpace.define_finalizer self, ConnectionHandler.unowned_pool_finalizer(@owner_to_pool) end def connection_pool_list @@ -924,6 +991,13 @@ module ActiveRecord connection_pool_list.each(&:disconnect!) end + # Disconnects all currently idle connections. + # + # See ConnectionPool#flush! for details. + def flush_idle_connections! + connection_pool_list.each(&:flush!) + end + # Locate the connection of the nearest super class. This can be an # active or defined connection: if it is the latter, it will be # opened and set as the active connection for the class it was defined diff --git a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb index 9ad04c3216..92e46ccf9f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb @@ -11,19 +11,6 @@ module ActiveRecord def quote(value) value = id_value_for_database(value) if value.is_a?(Base) - if value.respond_to?(:quoted_id) - at = value.method(:quoted_id).source_location - at &&= " at %s:%d" % at - - owner = value.method(:quoted_id).owner.to_s - klass = value.class.to_s - klass += "(#{owner})" unless owner == klass - - ActiveSupport::Deprecation.warn \ - "Defining #quoted_id is deprecated and will be ignored in Rails 5.2. (defined on #{klass}#{at})" - return value.quoted_id - end - if value.respond_to?(:value_for_database) value = value.value_for_database end @@ -37,10 +24,6 @@ module ActiveRecord def type_cast(value, column = nil) value = id_value_for_database(value) if value.is_a?(Base) - if value.respond_to?(:quoted_id) && value.respond_to?(:id) - return value.id - end - if column value = type_cast_from_column(column, value) 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 788a455773..0594b4b485 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_definitions.rb @@ -6,7 +6,7 @@ module ActiveRecord # this type are typically created and returned by methods in database # adapters. e.g. ActiveRecord::ConnectionAdapters::MySQL::SchemaStatements#indexes class IndexDefinition # :nodoc: - attr_reader :table, :name, :unique, :columns, :lengths, :orders, :where, :type, :using, :comment + attr_reader :table, :name, :unique, :columns, :lengths, :orders, :opclasses, :where, :type, :using, :comment def initialize( table, name, @@ -14,6 +14,7 @@ module ActiveRecord columns = [], lengths: {}, orders: {}, + opclasses: {}, where: nil, type: nil, using: nil, @@ -23,13 +24,23 @@ module ActiveRecord @name = name @unique = unique @columns = columns - @lengths = lengths - @orders = orders + @lengths = concise_options(lengths) + @orders = concise_options(orders) + @opclasses = concise_options(opclasses) @where = where @type = type @using = using @comment = comment end + + private + def concise_options(options) + if columns.size == options.size && options.values.uniq.size == 1 + options.values.first + else + options + end + end end # Abstract representation of a column definition. Instances of this type @@ -85,6 +96,11 @@ module ActiveRecord options[:primary_key] != default_primary_key end + def validate? + options.fetch(:validate, true) + end + alias validated? validate? + def defined_for?(to_table_ord = nil, to_table: nil, **options) if to_table_ord self.to_table == to_table_ord.to_s @@ -204,6 +220,7 @@ module ActiveRecord :decimal, :float, :integer, + :json, :string, :text, :time, @@ -396,6 +413,9 @@ module ActiveRecord alias :belongs_to :references def new_column_definition(name, type, **options) # :nodoc: + if integer_like_primary_key?(type, options) + type = integer_like_primary_key_type(type, options) + end type = aliased_types(type.to_s, type) options[:primary_key] ||= type == :primary_key options[:null] = false if options[:primary_key] @@ -410,6 +430,14 @@ module ActiveRecord def aliased_types(name, fallback) "timestamp" == name ? :datetime : fallback end + + def integer_like_primary_key?(type, options) + options[:primary_key] && [:integer, :bigint].include?(type) && !options.key?(:default) + end + + def integer_like_primary_key_type(type, options) + type + end end class AlterTable # :nodoc: 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 f57c7a5d4d..4f58b0242c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -1,8 +1,8 @@ # frozen_string_literal: true -require_relative "../../migration/join_table" +require "active_record/migration/join_table" require "active_support/core_ext/string/access" -require "digest" +require "digest/sha2" module ActiveRecord module ConnectionAdapters # :nodoc: @@ -79,7 +79,7 @@ module ActiveRecord end # Returns an array of indexes for the given table. - def indexes(table_name, name = nil) + def indexes(table_name) raise NotImplementedError, "#indexes is not implemented" end @@ -216,7 +216,7 @@ module ActiveRecord # generates: # # CREATE TABLE suppliers ( - # id int auto_increment PRIMARY KEY + # id bigint auto_increment PRIMARY KEY # ) ENGINE=InnoDB DEFAULT CHARSET=utf8 # # ====== Rename the primary key column @@ -228,7 +228,7 @@ module ActiveRecord # generates: # # CREATE TABLE objects ( - # guid int auto_increment PRIMARY KEY, + # guid bigint auto_increment PRIMARY KEY, # name varchar(80) # ) # @@ -255,8 +255,8 @@ module ActiveRecord # generates: # # CREATE TABLE order ( - # product_id integer NOT NULL, - # client_id integer NOT NULL + # product_id bigint NOT NULL, + # client_id bigint NOT NULL # ); # # ALTER TABLE ONLY "orders" @@ -265,15 +265,15 @@ module ActiveRecord # ====== Do not add a primary key column # # create_table(:categories_suppliers, id: false) do |t| - # t.column :category_id, :integer - # t.column :supplier_id, :integer + # t.column :category_id, :bigint + # t.column :supplier_id, :bigint # end # # generates: # # CREATE TABLE categories_suppliers ( - # category_id int, - # supplier_id int + # category_id bigint, + # supplier_id bigint # ) # # ====== Create a temporary table based on a query @@ -361,8 +361,8 @@ module ActiveRecord # generates: # # CREATE TABLE assemblies_parts ( - # assembly_id int NOT NULL, - # part_id int NOT NULL, + # assembly_id bigint NOT NULL, + # part_id bigint NOT NULL, # ) ENGINE=InnoDB DEFAULT CHARSET=utf8 # def create_join_table(table_1, table_2, column_options: {}, **options) @@ -432,7 +432,7 @@ module ActiveRecord # t.references :company # end # - # Creates a <tt>company_id(integer)</tt> column. + # Creates a <tt>company_id(bigint)</tt> column. # # ====== Add a polymorphic foreign key column # @@ -440,7 +440,7 @@ module ActiveRecord # t.belongs_to :company, polymorphic: true # end # - # Creates <tt>company_type(varchar)</tt> and <tt>company_id(integer)</tt> columns. + # Creates <tt>company_type(varchar)</tt> and <tt>company_id(bigint)</tt> columns. # # ====== Remove a column # @@ -522,6 +522,8 @@ module ActiveRecord # Specifies the precision for the <tt>:decimal</tt> and <tt>:numeric</tt> columns. # * <tt>:scale</tt> - # Specifies the scale for the <tt>:decimal</tt> and <tt>:numeric</tt> columns. + # * <tt>:comment</tt> - + # Specifies the comment for the column. This option is ignored by some backends. # # Note: The precision is the total number of significant digits, # and the scale is the number of digits that can be stored following @@ -598,7 +600,7 @@ module ActiveRecord # to provide these in a migration's +change+ method so it can be reverted. # In that case, +type+ and +options+ will be used by #add_column. def remove_column(table_name, column_name, type = nil, options = {}) - execute "ALTER TABLE #{quote_table_name(table_name)} DROP #{quote_column_name(column_name)}" + execute "ALTER TABLE #{quote_table_name(table_name)} #{remove_column_for_alter(table_name, column_name, type, options)}" end # Changes the column's definition according to the new options. @@ -736,6 +738,28 @@ module ActiveRecord # # Note: only supported by PostgreSQL and MySQL # + # ====== Creating an index with a specific operator class + # + # add_index(:developers, :name, using: 'gist', opclass: :gist_trgm_ops) + # + # generates: + # + # CREATE INDEX developers_on_name ON developers USING gist (name gist_trgm_ops) -- PostgreSQL + # + # add_index(:developers, [:name, :city], using: 'gist', opclass: { city: :gist_trgm_ops }) + # + # generates: + # + # CREATE INDEX developers_on_name_and_city ON developers USING gist (name, city gist_trgm_ops) -- PostgreSQL + # + # add_index(:developers, [:name, :city], using: 'gist', opclass: :gist_trgm_ops) + # + # generates: + # + # CREATE INDEX developers_on_name_and_city ON developers USING gist (name gist_trgm_ops, city gist_trgm_ops) -- PostgreSQL + # + # Note: only supported by PostgreSQL + # # ====== Creating an index with a specific type # # add_index(:developers, :name, type: :fulltext) @@ -804,24 +828,19 @@ module ActiveRecord end # Verifies the existence of an index with a given name. - def index_name_exists?(table_name, index_name, default = nil) - unless default.nil? - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing default to #index_name_exists? is deprecated without replacement. - MSG - end + def index_name_exists?(table_name, index_name) index_name = index_name.to_s indexes(table_name).detect { |i| i.name == index_name } end - # Adds a reference. The reference column is an integer by default, + # Adds a reference. The reference column is a bigint by default, # the <tt>:type</tt> option can be used to specify a different type. # Optionally adds a +_type+ column, if <tt>:polymorphic</tt> option is provided. # #add_reference and #add_belongs_to are acceptable. # # The +options+ hash can include the following keys: # [<tt>:type</tt>] - # The reference column type. Defaults to +:integer+. + # The reference column type. Defaults to +:bigint+. # [<tt>:index</tt>] # Add an appropriate index. Defaults to true. # See #add_index for usage of this option. @@ -832,7 +851,7 @@ module ActiveRecord # [<tt>:null</tt>] # Whether the column allows nulls. Defaults to true. # - # ====== Create a user_id integer column + # ====== Create a user_id bigint column # # add_reference(:products, :user) # @@ -945,6 +964,8 @@ module ActiveRecord # 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+ + # [<tt>:validate</tt>] + # (Postgres only) Specify whether or not the constraint should be validated. Defaults to +true+. def add_foreign_key(from_table, to_table, options = {}) return unless supports_foreign_keys? @@ -1018,16 +1039,6 @@ module ActiveRecord insert_versions_sql(versions) if versions.any? end - def initialize_schema_migrations_table # :nodoc: - ActiveRecord::SchemaMigration.create_table - end - deprecate :initialize_schema_migrations_table - - def initialize_internal_metadata_table # :nodoc: - ActiveRecord::InternalMetadata.create_table - end - deprecate :initialize_internal_metadata_table - def internal_string_options_for_primary_key # :nodoc: { primary_key: true } end @@ -1133,7 +1144,7 @@ module ActiveRecord def add_index_options(table_name, column_name, comment: nil, **options) # :nodoc: column_names = index_column_names(column_name) - options.assert_valid_keys(:unique, :order, :name, :where, :length, :internal, :using, :algorithm, :type) + options.assert_valid_keys(:unique, :order, :name, :where, :length, :internal, :using, :algorithm, :type, :opclass) index_type = options[:type].to_s if options.key?(:type) index_type ||= options[:unique] ? "UNIQUE" : "" @@ -1172,7 +1183,7 @@ module ActiveRecord end # Changes the comment for a column or removes it if +nil+. - def change_column_comment(table_name, column_name, comment) #:nodoc: + def change_column_comment(table_name, column_name, comment) raise NotImplementedError, "#{self.class} does not support changing column comments" end @@ -1186,20 +1197,22 @@ module ActiveRecord end def add_index_sort_order(quoted_columns, **options) - if order = options[:order] - case order - when Hash - order = order.symbolize_keys - quoted_columns.each { |name, column| column << " #{order[name].upcase}" if order[name].present? } - when String - quoted_columns.each { |name, column| column << " #{order.upcase}" if order.present? } - end + orders = options_for_index_columns(options[:order]) + quoted_columns.each do |name, column| + column << " #{orders[name].upcase}" if orders[name].present? end + end - quoted_columns + def options_for_index_columns(options) + if options.is_a?(Hash) + options.symbolize_keys + else + Hash.new { |hash, column| hash[column] = options } + end end - # Overridden by the MySQL adapter for supporting index lengths + # Overridden by the MySQL adapter for supporting index lengths and by + # the PostgreSQL adapter for supporting operator classes. def add_options_for_index_columns(quoted_columns, **options) if supports_index_sort_order? quoted_columns = add_index_sort_order(quoted_columns, options) @@ -1353,6 +1366,20 @@ module ActiveRecord options.is_a?(Hash) && options.key?(:name) && options.except(:name, :algorithm).empty? end + def add_column_for_alter(table_name, column_name, type, options = {}) + td = create_table_definition(table_name) + cd = td.new_column_definition(column_name, type, options) + schema_creation.accept(AddColumnDefinition.new(cd)) + end + + def remove_column_for_alter(table_name, column_name, type = nil, options = {}) + "DROP COLUMN #{quote_column_name(column_name)}" + end + + def remove_columns_for_alter(table_name, *column_names) + column_names.map { |column_name| remove_column_for_alter(table_name, column_name) } + end + def insert_versions_sql(versions) sm_table = quote_table_name(ActiveRecord::SchemaMigration.table_name) diff --git a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb index 147e16e9fa..d9ac8db6a8 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb @@ -240,7 +240,7 @@ module ActiveRecord rollback_transaction if transaction else begin - commit_transaction + commit_transaction if transaction rescue Exception rollback_transaction(transaction) unless transaction.state.completed? raise diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index 8c889f98f5..fc80d332f9 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -1,11 +1,11 @@ # frozen_string_literal: true -require_relative "../type" -require_relative "determine_if_preparable_visitor" -require_relative "schema_cache" -require_relative "sql_type_metadata" -require_relative "abstract/schema_dumper" -require_relative "abstract/schema_creation" +require "active_record/connection_adapters/determine_if_preparable_visitor" +require "active_record/connection_adapters/schema_cache" +require "active_record/connection_adapters/sql_type_metadata" +require "active_record/connection_adapters/abstract/schema_dumper" +require "active_record/connection_adapters/abstract/schema_creation" +require "active_support/concurrency/load_interlock_aware_monitor" require "arel/collectors/bind" require "arel/collectors/composite" require "arel/collectors/sql_string" @@ -105,10 +105,11 @@ module ActiveRecord @logger = logger @config = config @pool = nil + @idle_since = Concurrent.monotonic_time @schema_cache = SchemaCache.new self @quoted_column_names, @quoted_table_names = {}, {} @visitor = arel_visitor - @lock = Monitor.new + @lock = ActiveSupport::Concurrency::LoadInterlockAwareMonitor.new if self.class.type_cast_config_to_boolean(config.fetch(:prepared_statements) { true }) @prepared_statements = true @@ -164,6 +165,7 @@ module ActiveRecord "Current thread: #{Thread.current}." end + @idle_since = Concurrent.monotonic_time @owner = nil else raise ActiveRecordError, "Cannot expire connection, it is not currently leased." @@ -183,6 +185,12 @@ module ActiveRecord end end + # Seconds since this connection was returned to the pool + def seconds_idle # :nodoc: + return 0 if in_use? + Concurrent.monotonic_time - @idle_since + end + def unprepared_statement old_prepared_statements, @prepared_statements = @prepared_statements, false yield @@ -196,16 +204,6 @@ module ActiveRecord self.class::ADAPTER_NAME end - def supports_migrations? # :nodoc: - true - end - deprecate :supports_migrations? - - def supports_primary_key? # :nodoc: - true - end - deprecate :supports_primary_key? - # Does this adapter support DDL rollbacks in transactions? That is, would # CREATE TABLE or ALTER TABLE get rolled back by a transaction? def supports_ddl_transactions? @@ -274,6 +272,11 @@ module ActiveRecord false end + # Does this adapter support creating invalid constraints? + def supports_validate_constraints? + false + end + # Does this adapter support creating foreign key constraints # in the same statement as creating the table? def supports_foreign_keys_in_create? @@ -377,6 +380,19 @@ module ActiveRecord reset_transaction end + # Immediately forget this connection ever existed. Unlike disconnect!, + # this will not communicate with the server. + # + # After calling this method, the behavior of all other methods becomes + # undefined. This is called internally just before a forked process gets + # rid of a connection that belonged to its parent. + def discard! + # This should be overridden by concrete adapters. + # + # Prevent @connection's finalizer from touching the socket, or + # otherwise communicating with its server, when it is collected. + end + # Reset the state of this connection, directing the DBMS to clear # transactions and other connection-related server-side state. Usually a # database-dependent operation. @@ -402,10 +418,7 @@ module ActiveRecord # Checks whether the connection to the database is still active (i.e. not stale). # This is done under the hood by calling #active?. If the connection # is no longer active, then this method will reconnect to the database. - def verify!(*ignored) - if ignored.size > 0 - ActiveSupport::Deprecation.warn("Passing arguments to #verify method of the connection has no effect and has been deprecated. Please remove all arguments from the #verify method call.") - end + def verify! reconnect! unless active? end @@ -478,6 +491,8 @@ module ActiveRecord m.alias_type %r(number)i, "decimal" m.alias_type %r(double)i, "float" + m.register_type %r(^json)i, Type::Json.new + m.register_type(%r(decimal)i) do |sql_type| scale = extract_scale(sql_type) precision = extract_precision(sql_type) 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 7cd086084a..479131caad 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -1,15 +1,15 @@ # frozen_string_literal: true -require_relative "abstract_adapter" -require_relative "statement_pool" -require_relative "mysql/column" -require_relative "mysql/explain_pretty_printer" -require_relative "mysql/quoting" -require_relative "mysql/schema_creation" -require_relative "mysql/schema_definitions" -require_relative "mysql/schema_dumper" -require_relative "mysql/schema_statements" -require_relative "mysql/type_metadata" +require "active_record/connection_adapters/abstract_adapter" +require "active_record/connection_adapters/statement_pool" +require "active_record/connection_adapters/mysql/column" +require "active_record/connection_adapters/mysql/explain_pretty_printer" +require "active_record/connection_adapters/mysql/quoting" +require "active_record/connection_adapters/mysql/schema_creation" +require "active_record/connection_adapters/mysql/schema_definitions" +require "active_record/connection_adapters/mysql/schema_dumper" +require "active_record/connection_adapters/mysql/schema_statements" +require "active_record/connection_adapters/mysql/type_metadata" require "active_support/core_ext/string/strip" @@ -44,7 +44,7 @@ module ActiveRecord json: { name: "json" }, } - class StatementPool < ConnectionAdapters::StatementPool + class StatementPool < ConnectionAdapters::StatementPool # :nodoc: private def dealloc(stmt) stmt[:stmt].close end @@ -284,7 +284,7 @@ module ActiveRecord def table_comment(table_name) # :nodoc: scope = quoted_scope(table_name) - query_value(<<-SQL.strip_heredoc, "SCHEMA") + query_value(<<-SQL.strip_heredoc, "SCHEMA").presence SELECT table_comment FROM information_schema.tables WHERE table_schema = #{scope[:schema]} @@ -299,7 +299,7 @@ module ActiveRecord def bulk_change_table(table_name, operations) #:nodoc: sqls = operations.flat_map do |command, args| table, arguments = args.shift, args - method = :"#{command}_sql" + method = :"#{command}_for_alter" if respond_to?(method, true) send(method, table, *arguments) @@ -311,6 +311,11 @@ module ActiveRecord execute("ALTER TABLE #{quote_table_name(table_name)} #{sqls}") end + def change_table_comment(table_name, comment) #:nodoc: + comment = "" if comment.nil? + execute("ALTER TABLE #{quote_table_name(table_name)} COMMENT #{quote(comment)}") + end + # Renames a table. # # Example: @@ -351,26 +356,27 @@ module ActiveRecord def change_column_default(table_name, column_name, default_or_changes) #:nodoc: default = extract_new_default_value(default_or_changes) - column = column_for(table_name, column_name) - change_column table_name, column_name, column.sql_type, default: default + change_column table_name, column_name, nil, default: default end def change_column_null(table_name, column_name, null, default = nil) #:nodoc: - column = column_for(table_name, column_name) - unless null || default.nil? execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote(default)} WHERE #{quote_column_name(column_name)} IS NULL") end - change_column table_name, column_name, column.sql_type, null: null + change_column table_name, column_name, nil, null: null + end + + def change_column_comment(table_name, column_name, comment) #:nodoc: + change_column table_name, column_name, nil, comment: comment end def change_column(table_name, column_name, type, options = {}) #:nodoc: - execute("ALTER TABLE #{quote_table_name(table_name)} #{change_column_sql(table_name, column_name, type, options)}") + execute("ALTER TABLE #{quote_table_name(table_name)} #{change_column_for_alter(table_name, column_name, type, options)}") end def rename_column(table_name, column_name, new_column_name) #:nodoc: - execute("ALTER TABLE #{quote_table_name(table_name)} #{rename_column_sql(table_name, column_name, new_column_name)}") + execute("ALTER TABLE #{quote_table_name(table_name)} #{rename_column_for_alter(table_name, column_name, new_column_name)}") rename_column_indexes(table_name, column_name, new_column_name) end @@ -557,7 +563,6 @@ module ActiveRecord m.register_type %r(longblob)i, Type::Binary.new(limit: 2**32 - 1) m.register_type %r(^float)i, Type::Float.new(limit: 24) m.register_type %r(^double)i, Type::Float.new(limit: 53) - m.register_type %r(^json)i, Type::Json.new register_integer_type m, %r(^bigint)i, limit: 8 register_integer_type m, %r(^int)i, limit: 4 @@ -600,25 +605,6 @@ module ActiveRecord end end - def add_index_length(quoted_columns, **options) - if length = options[:length] - case length - when Hash - length = length.symbolize_keys - quoted_columns.each { |name, column| column << "(#{length[name]})" if length[name].present? } - when Integer - quoted_columns.each { |name, column| column << "(#{length})" } - end - end - - quoted_columns - end - - def add_options_for_index_columns(quoted_columns, **options) - quoted_columns = add_index_length(quoted_columns, options) - super - end - # See https://dev.mysql.com/doc/refman/5.7/en/error-messages-server.html ER_DUP_ENTRY = 1062 ER_NOT_NULL_VIOLATION = 1048 @@ -630,6 +616,8 @@ module ActiveRecord ER_CANNOT_ADD_FOREIGN = 1215 ER_CANNOT_CREATE_TABLE = 1005 ER_LOCK_WAIT_TIMEOUT = 1205 + ER_QUERY_INTERRUPTED = 1317 + ER_QUERY_TIMEOUT = 3024 def translate_exception(exception, message) case error_number(exception) @@ -654,20 +642,19 @@ module ActiveRecord when ER_LOCK_DEADLOCK Deadlocked.new(message) when ER_LOCK_WAIT_TIMEOUT - TransactionTimeout.new(message) + LockWaitTimeout.new(message) + when ER_QUERY_TIMEOUT + StatementTimeout.new(message) + when ER_QUERY_INTERRUPTED + QueryCanceled.new(message) else super end end - def add_column_sql(table_name, column_name, type, options = {}) - td = create_table_definition(table_name) - cd = td.new_column_definition(column_name, type, options) - schema_creation.accept(AddColumnDefinition.new(cd)) - end - - def change_column_sql(table_name, column_name, type, options = {}) + def change_column_for_alter(table_name, column_name, type, options = {}) column = column_for(table_name, column_name) + type ||= column.sql_type unless options.key?(:default) options[:default] = column.default @@ -686,7 +673,7 @@ module ActiveRecord schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end - def rename_column_sql(table_name, column_name, new_column_name) + def rename_column_for_alter(table_name, column_name, new_column_name) column = column_for(table_name, column_name) options = { default: column.default, @@ -700,31 +687,23 @@ module ActiveRecord schema_creation.accept(ChangeColumnDefinition.new(cd, column.name)) end - def remove_column_sql(table_name, column_name, type = nil, options = {}) - "DROP #{quote_column_name(column_name)}" - end - - def remove_columns_sql(table_name, *column_names) - column_names.map { |column_name| remove_column_sql(table_name, column_name) } - end - - def add_index_sql(table_name, column_name, options = {}) + def add_index_for_alter(table_name, column_name, options = {}) index_name, index_type, index_columns, _, index_algorithm, index_using = add_index_options(table_name, column_name, options) index_algorithm[0, 0] = ", " if index_algorithm.present? "ADD #{index_type} INDEX #{quote_column_name(index_name)} #{index_using} (#{index_columns})#{index_algorithm}" end - def remove_index_sql(table_name, options = {}) + def remove_index_for_alter(table_name, options = {}) index_name = index_name_for_remove(table_name, options) - "DROP INDEX #{index_name}" + "DROP INDEX #{quote_column_name(index_name)}" end - def add_timestamps_sql(table_name, options = {}) - [add_column_sql(table_name, :created_at, :datetime, options), add_column_sql(table_name, :updated_at, :datetime, options)] + def add_timestamps_for_alter(table_name, options = {}) + [add_column_for_alter(table_name, :created_at, :datetime, options), add_column_for_alter(table_name, :updated_at, :datetime, options)] end - def remove_timestamps_sql(table_name, options = {}) - [remove_column_sql(table_name, :updated_at), remove_column_sql(table_name, :created_at)] + def remove_timestamps_for_alter(table_name, options = {}) + [remove_column_for_alter(table_name, :updated_at), remove_column_for_alter(table_name, :created_at)] end # MySQL is too stupid to create a temporary table for use subquery, so we have diff --git a/activerecord/lib/active_record/connection_adapters/column.rb b/activerecord/lib/active_record/connection_adapters/column.rb index 16273fb5f1..5d81de9fe1 100644 --- a/activerecord/lib/active_record/connection_adapters/column.rb +++ b/activerecord/lib/active_record/connection_adapters/column.rb @@ -11,11 +11,11 @@ module ActiveRecord # Instantiates a new column in the table. # - # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id int</tt>. + # +name+ is the column's name, such as <tt>supplier_id</tt> in <tt>supplier_id bigint</tt>. # +default+ is the type-casted default value, such as +new+ in <tt>sales_stage varchar(20) default 'new'</tt>. # +sql_type_metadata+ is various information about the type of the column # +null+ determines if this column allows +NULL+ values. - def initialize(name, default, sql_type_metadata = nil, null = true, table_name = nil, default_function = nil, collation = nil, comment: nil) + def initialize(name, default, sql_type_metadata = nil, null = true, table_name = nil, default_function = nil, collation = nil, comment: nil, **) @name = name.freeze @table_name = table_name @sql_type_metadata = sql_type_metadata diff --git a/activerecord/lib/active_record/connection_adapters/connection_specification.rb b/activerecord/lib/active_record/connection_adapters/connection_specification.rb index 29542f917e..508132accb 100644 --- a/activerecord/lib/active_record/connection_adapters/connection_specification.rb +++ b/activerecord/lib/active_record/connection_adapters/connection_specification.rb @@ -183,13 +183,25 @@ module ActiveRecord raise(AdapterNotSpecified, "database configuration does not specify adapter") unless spec.key?(:adapter) + # Require the adapter itself and give useful feedback about + # 1. Missing adapter gems and + # 2. Adapter gems' missing dependencies. path_to_adapter = "active_record/connection_adapters/#{spec[:adapter]}_adapter" begin require path_to_adapter - rescue Gem::LoadError => e - raise Gem::LoadError, "Specified '#{spec[:adapter]}' for database adapter, but the gem is not loaded. Add `gem '#{e.name}'` to your Gemfile (and ensure its version is at the minimum required by ActiveRecord)." rescue LoadError => e - raise LoadError, "Could not load '#{path_to_adapter}'. Make sure that the adapter in config/database.yml is valid. If you use an adapter other than 'mysql2', 'postgresql' or 'sqlite3' add the necessary adapter gem to the Gemfile.", e.backtrace + # We couldn't require the adapter itself. Raise an exception that + # points out config typos and missing gems. + if e.path == path_to_adapter + # We can assume that a non-builtin adapter was specified, so it's + # either misspelled or missing from Gemfile. + raise e.class, "Could not load the '#{spec[:adapter]}' Active Record adapter. Ensure that the adapter is spelled correctly in config/database.yml and that you've added the necessary adapter gem to your Gemfile.", e.backtrace + + # Bubbled up from the adapter require. Prefix the exception message + # with some guidance about how to address it and reraise. + else + raise e.class, "Error loading the '#{spec[:adapter]}' Active Record adapter. Missing a gem it depends on? #{e.message}", e.backtrace + end end adapter_method = "#{spec[:adapter]}_connection" diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb index b22a2e4da7..2ed4ad16ae 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_definitions.rb @@ -4,11 +4,6 @@ module ActiveRecord module ConnectionAdapters module MySQL module ColumnMethods - def primary_key(name, type = :primary_key, **options) - options[:auto_increment] = true if [:integer, :bigint].include?(type) && !options.key?(:default) - super - end - def blob(*args, **options) args.each { |name| column(name, :blob, options) } end @@ -37,10 +32,6 @@ module ActiveRecord args.each { |name| column(name, :longtext, options) } end - def json(*args, **options) - args.each { |name| column(name, :json, options) } - end - def unsigned_integer(*args, **options) args.each { |name| column(name, :unsigned_integer, options) } end @@ -68,7 +59,6 @@ module ActiveRecord when :primary_key type = :integer options[:limit] ||= 8 - options[:auto_increment] = true options[:primary_key] = true when /\Aunsigned_(?<type>.+)\z/ type = $~[:type].to_sym @@ -82,6 +72,11 @@ module ActiveRecord def aliased_types(name, fallback) fallback end + + def integer_like_primary_key_type(type, options) + options[:auto_increment] = true + type + end end class Table < ActiveRecord::ConnectionAdapters::Table diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb index 95eb77aea4..d23178e43c 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_dumper.rb @@ -8,6 +8,7 @@ module ActiveRecord def prepare_column_options(column) spec = super spec[:unsigned] = "true" if column.unsigned? + spec[:auto_increment] = "true" if column.auto_increment? if @connection.supports_virtual_columns? && column.virtual? spec[:as] = extract_expression_for_virtual_column(column) @@ -18,6 +19,12 @@ module ActiveRecord spec end + def column_spec_for_primary_key(column) + spec = super + spec.delete(:auto_increment) if column.type == :integer && column.auto_increment? + spec + end + def default_primary_key?(column) super && column.auto_increment? && !column.unsigned? end diff --git a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb index 759493e3bd..ce50590651 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb @@ -5,13 +5,7 @@ module ActiveRecord module MySQL module SchemaStatements # :nodoc: # Returns an array of indexes for the given table. - def indexes(table_name, name = nil) - if name - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing name to #indexes is deprecated without replacement. - MSG - end - + def indexes(table_name) indexes = [] current_index = nil execute_and_free("SHOW KEYS FROM #{quote_table_name(table_name)}", "SCHEMA") do |result| @@ -28,23 +22,26 @@ module ActiveRecord index_using = mysql_index_type end - indexes << IndexDefinition.new( + indexes << [ row[:Table], row[:Key_name], row[:Non_unique].to_i == 0, + [], + lengths: {}, + orders: {}, type: index_type, using: index_using, comment: row[:Index_comment].presence - ) + ] end - indexes.last.columns << row[:Column_name] - indexes.last.lengths.merge!(row[:Column_name] => row[:Sub_part].to_i) if row[:Sub_part] - indexes.last.orders.merge!(row[:Column_name] => :desc) if row[:Collation] == "D" + indexes.last[-2] << row[:Column_name] + indexes.last[-1][:lengths].merge!(row[:Column_name] => row[:Sub_part].to_i) if row[:Sub_part] + indexes.last[-1][:orders].merge!(row[:Column_name] => :desc) if row[:Collation] == "D" end end - indexes + indexes.map { |index| IndexDefinition.new(*index) } end def remove_column(table_name, column_name, type = nil, options = {}) @@ -109,6 +106,18 @@ module ActiveRecord super unless specifier == "RESTRICT" end + def add_index_length(quoted_columns, **options) + lengths = options_for_index_columns(options[:length]) + quoted_columns.each do |name, column| + column << "(#{lengths[name]})" if lengths[name].present? + end + end + + def add_options_for_index_columns(quoted_columns, **options) + quoted_columns = add_index_length(quoted_columns, options) + super + end + def data_source_sql(name = nil, type: nil) scope = quoted_scope(name, type: type) diff --git a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb index 2c2321872d..bfdc7995f0 100644 --- a/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/mysql2_adapter.rb @@ -1,11 +1,10 @@ # frozen_string_literal: true -require_relative "abstract_mysql_adapter" -require_relative "mysql/database_statements" +require "active_record/connection_adapters/abstract_mysql_adapter" +require "active_record/connection_adapters/mysql/database_statements" -gem "mysql2", ">= 0.3.18", "< 0.5" +gem "mysql2", "~> 0.4.4" require "mysql2" -raise "mysql2 0.4.3 is not supported. Please upgrade to 0.4.4+" if Mysql2::VERSION == "0.4.3" module ActiveRecord module ConnectionHandling # :nodoc: @@ -105,6 +104,11 @@ module ActiveRecord @connection.close end + def discard! # :nodoc: + @connection.automatic_close = false + @connection = nil + end + private def connect diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb index 1b67cee24b..469ef3f5a0 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/column.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/column.rb @@ -7,11 +7,38 @@ module ActiveRecord delegate :array, :oid, :fmod, to: :sql_type_metadata alias :array? :array + def initialize(*, max_identifier_length: 63, **) + super + @max_identifier_length = max_identifier_length + end + def serial? return unless default_function - %r{\Anextval\('"?#{table_name}_#{name}_seq"?'::regclass\)\z} === default_function + if %r{\Anextval\('"?(?<sequence_name>.+_(?<suffix>seq\d*))"?'::regclass\)\z} =~ default_function + sequence_name_from_parts(table_name, name, suffix) == sequence_name + end end + + protected + attr_reader :max_identifier_length + + private + def sequence_name_from_parts(table_name, column_name, suffix) + over_length = [table_name, column_name, suffix].map(&:length).sum + 2 - max_identifier_length + + if over_length > 0 + column_name_length = [(max_identifier_length - suffix.length - 2) / 2, column_name.length].min + over_length -= column_name.length - column_name_length + column_name = column_name[0, column_name_length - [over_length, 0].min] + end + + if over_length > 0 + table_name = table_name[0, table_name.length - over_length] + end + + "#{table_name}_#{column_name}_#{suffix}" + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb index b28418d74f..542ca75d3e 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid.rb @@ -1,27 +1,27 @@ # frozen_string_literal: true -require_relative "oid/array" -require_relative "oid/bit" -require_relative "oid/bit_varying" -require_relative "oid/bytea" -require_relative "oid/cidr" -require_relative "oid/date_time" -require_relative "oid/decimal" -require_relative "oid/enum" -require_relative "oid/hstore" -require_relative "oid/inet" -require_relative "oid/jsonb" -require_relative "oid/money" -require_relative "oid/oid" -require_relative "oid/point" -require_relative "oid/legacy_point" -require_relative "oid/range" -require_relative "oid/specialized_string" -require_relative "oid/uuid" -require_relative "oid/vector" -require_relative "oid/xml" +require "active_record/connection_adapters/postgresql/oid/array" +require "active_record/connection_adapters/postgresql/oid/bit" +require "active_record/connection_adapters/postgresql/oid/bit_varying" +require "active_record/connection_adapters/postgresql/oid/bytea" +require "active_record/connection_adapters/postgresql/oid/cidr" +require "active_record/connection_adapters/postgresql/oid/date_time" +require "active_record/connection_adapters/postgresql/oid/decimal" +require "active_record/connection_adapters/postgresql/oid/enum" +require "active_record/connection_adapters/postgresql/oid/hstore" +require "active_record/connection_adapters/postgresql/oid/inet" +require "active_record/connection_adapters/postgresql/oid/jsonb" +require "active_record/connection_adapters/postgresql/oid/money" +require "active_record/connection_adapters/postgresql/oid/oid" +require "active_record/connection_adapters/postgresql/oid/point" +require "active_record/connection_adapters/postgresql/oid/legacy_point" +require "active_record/connection_adapters/postgresql/oid/range" +require "active_record/connection_adapters/postgresql/oid/specialized_string" +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_relative "oid/type_map_initializer" +require "active_record/connection_adapters/postgresql/oid/type_map_initializer" module ActiveRecord module ConnectionAdapters 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 7d5d7d91e6..a89aa5ea09 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -35,7 +35,7 @@ module ActiveRecord 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? ? ')' : ']'}" + ::Range.new(from, to, value.exclude_end?) else super end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb index a0a22ba0f1..9fdeab06c1 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -101,6 +101,8 @@ module ActiveRecord end when OID::Array::Data _quote(encode_array(value)) + when Range + _quote(encode_range(value)) else super end @@ -117,6 +119,8 @@ module ActiveRecord value.to_s when OID::Array::Data encode_array(value) + when Range + encode_range(value) else super end @@ -133,6 +137,10 @@ module ActiveRecord result end + def encode_range(range) + "[#{type_cast(range.first)},#{type_cast(range.last)}#{range.exclude_end? ? ')' : ']'}" + end + def determine_encoding_of_strings_in_array(value) case value when ::Array then determine_encoding_of_strings_in_array(value.first) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb index 386d22a9bd..8df91c988b 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/referential_integrity.rb @@ -4,26 +4,21 @@ module ActiveRecord module ConnectionAdapters module PostgreSQL module ReferentialIntegrity # :nodoc: - def supports_disable_referential_integrity? # :nodoc: - true - end - def disable_referential_integrity # :nodoc: - if supports_disable_referential_integrity? - original_exception = nil + original_exception = nil - begin - transaction(requires_new: true) do - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";")) - end - rescue ActiveRecord::ActiveRecordError => e - original_exception = e + begin + transaction(requires_new: true) do + execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} DISABLE TRIGGER ALL" }.join(";")) end + rescue ActiveRecord::ActiveRecordError => e + original_exception = e + end - begin - yield - rescue ActiveRecord::InvalidForeignKey => e - warn <<-WARNING + begin + yield + rescue ActiveRecord::InvalidForeignKey => e + warn <<-WARNING WARNING: Rails was not able to disable referential integrity. This is most likely caused due to missing permissions. @@ -32,17 +27,14 @@ Rails needs superuser privileges to disable referential integrity. cause: #{original_exception.try(:message)} WARNING - raise e - end + raise e + end - begin - transaction(requires_new: true) do - execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";")) - end - rescue ActiveRecord::ActiveRecordError + begin + transaction(requires_new: true) do + execute(tables.collect { |name| "ALTER TABLE #{quote_table_name(name)} ENABLE TRIGGER ALL" }.join(";")) end - else - yield + rescue ActiveRecord::ActiveRecordError end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb index 59f661da25..8e381a92cf 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_creation.rb @@ -5,6 +5,18 @@ module ActiveRecord module PostgreSQL class SchemaCreation < AbstractAdapter::SchemaCreation # :nodoc: private + def visit_AlterTable(o) + super << o.constraint_validations.map { |fk| visit_ValidateConstraint fk }.join(" ") + end + + def visit_AddForeignKey(o) + super.dup.tap { |sql| sql << " NOT VALID" unless o.validate? } + end + + def visit_ValidateConstraint(name) + "VALIDATE CONSTRAINT #{quote_column_name(name)}" + end + def add_column_options!(sql, options) if options[:collation] sql << " COLLATE \"#{options[:collation]}\"" diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb index f1489e4d69..6047217fcd 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_definitions.rb @@ -44,15 +44,8 @@ module ActiveRecord # a record (as primary keys cannot be +nil+). This might be done via the # +SecureRandom.uuid+ method and a +before_save+ callback, for instance. def primary_key(name, type = :primary_key, **options) - options[:auto_increment] = true if [:integer, :bigint].include?(type) && !options.key?(:default) if type == :uuid options[:default] = options.fetch(:default, "gen_random_uuid()") - elsif options.delete(:auto_increment) == true && %i(integer bigint).include?(type) - type = if type == :bigint || options[:limit] == 8 - :bigserial - else - :serial - end end super @@ -102,10 +95,6 @@ module ActiveRecord args.each { |name| column(name, :int8range, options) } end - def json(*args, **options) - args.each { |name| column(name, :json, options) } - end - def jsonb(*args, **options) args.each { |name| column(name, :jsonb, options) } end @@ -185,11 +174,33 @@ module ActiveRecord class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition include ColumnMethods + + private + def integer_like_primary_key_type(type, options) + if type == :bigint || options[:limit] == 8 + :bigserial + else + :serial + end + end end class Table < ActiveRecord::ConnectionAdapters::Table include ColumnMethods end + + class AlterTable < ActiveRecord::ConnectionAdapters::AlterTable + attr_reader :constraint_validations + + def initialize(td) + super + @constraint_validations = [] + end + + def validate_constraint(name) + @constraint_validations << name + end + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb index c0dbb166b7..84643d20da 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_dumper.rb @@ -5,6 +5,18 @@ module ActiveRecord module PostgreSQL class SchemaDumper < ConnectionAdapters::SchemaDumper # :nodoc: private + + def extensions(stream) + extensions = @connection.extensions + if extensions.any? + stream.puts " # These are extensions that must be enabled in order to support this database" + extensions.sort.each do |extension| + stream.puts " enable_extension #{extension.inspect}" + end + stream.puts + end + end + def prepare_column_options(column) spec = super spec[:array] = "true" if column.array? 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 9e2f61e6ce..bf5fbb30e1 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -1,7 +1,5 @@ # frozen_string_literal: true -require "active_support/core_ext/string/strip" - module ActiveRecord module ConnectionAdapters module PostgreSQL @@ -66,12 +64,7 @@ module ActiveRecord end # Verifies existence of an index with a given name. - def index_name_exists?(table_name, index_name, default = nil) - unless default.nil? - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing default to #index_name_exists? is deprecated without replacement. - MSG - end + def index_name_exists?(table_name, index_name) table = quoted_scope(table_name) index = quoted_scope(index_name) @@ -89,21 +82,12 @@ module ActiveRecord end # Returns an array of indexes for the given table. - def indexes(table_name, name = nil) # :nodoc: - if name - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing name to #indexes is deprecated without replacement. - MSG - end - + def indexes(table_name) # :nodoc: scope = quoted_scope(table_name) result = query(<<-SQL, "SCHEMA") SELECT distinct i.relname, d.indisunique, d.indkey, pg_get_indexdef(d.indexrelid), t.oid, - pg_catalog.obj_description(i.oid, 'pg_class') AS comment, - (SELECT COUNT(*) FROM pg_opclass o - JOIN (SELECT unnest(string_to_array(d.indclass::text, ' '))::int oid) c - ON o.oid = c.oid WHERE o.opcdefault = 'f') + pg_catalog.obj_description(i.oid, 'pg_class') AS comment FROM pg_class t INNER JOIN pg_index d ON t.oid = d.indrelid INNER JOIN pg_class i ON d.indexrelid = i.oid @@ -122,11 +106,13 @@ module ActiveRecord inddef = row[3] oid = row[4] comment = row[5] - opclass = row[6] using, expressions, where = inddef.scan(/ USING (\w+?) \((.+?)\)(?: WHERE (.+))?\z/).flatten - if indkey.include?(0) || opclass > 0 + orders = {} + opclasses = {} + + if indkey.include?(0) columns = expressions else columns = Hash[query(<<-SQL.strip_heredoc, "SCHEMA")].values_at(*indkey).compact @@ -136,10 +122,12 @@ module ActiveRecord AND a.attnum IN (#{indkey.join(",")}) SQL - # add info on sort order for columns (only desc order is explicitly specified, asc is the default) - orders = Hash[ - expressions.scan(/(\w+) DESC/).flatten.map { |order_column| [order_column, :desc] } - ] + # add info on sort order (only desc order is explicitly specified, asc is the default) + # and non-default opclasses + expressions.scan(/(\w+)(?: (?!DESC)(\w+))?(?: (DESC))?/).each do |column, opclass, desc| + opclasses[column] = opclass.to_sym if opclass + orders[column] = :desc if desc + end end IndexDefinition.new( @@ -148,6 +136,7 @@ module ActiveRecord unique, columns, orders: orders, + opclasses: opclasses, where: where, using: using.to_sym, comment: comment.presence @@ -405,50 +394,23 @@ module ActiveRecord def change_column(table_name, column_name, type, options = {}) #:nodoc: clear_cache! - quoted_table_name = quote_table_name(table_name) - quoted_column_name = quote_column_name(column_name) - sql_type = type_to_sql(type, options) - sql = "ALTER TABLE #{quoted_table_name} ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}".dup - if options[:collation] - sql << " COLLATE \"#{options[:collation]}\"" - end - if options[:using] - sql << " USING #{options[:using]}" - elsif options[:cast_as] - cast_as_type = type_to_sql(options[:cast_as], options) - sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" - end - execute sql - - change_column_default(table_name, column_name, options[:default]) if options.key?(:default) - change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null) - change_column_comment(table_name, column_name, options[:comment]) if options.key?(:comment) + sqls, procs = change_column_for_alter(table_name, column_name, type, options) + execute "ALTER TABLE #{quote_table_name(table_name)} #{sqls.join(", ")}" + procs.each(&:call) end # Changes the default value of a table column. def change_column_default(table_name, column_name, default_or_changes) # :nodoc: - clear_cache! - column = column_for(table_name, column_name) - return unless column - - default = extract_new_default_value(default_or_changes) - alter_column_query = "ALTER TABLE #{quote_table_name(table_name)} ALTER COLUMN #{quote_column_name(column_name)} %s" - if default.nil? - # <tt>DEFAULT NULL</tt> results in the same behavior as <tt>DROP DEFAULT</tt>. However, PostgreSQL will - # cast the default to the columns type, which leaves us with a default like "default NULL::character varying". - execute alter_column_query % "DROP DEFAULT" - else - execute alter_column_query % "SET DEFAULT #{quote_default_expression(default, column)}" - end + execute "ALTER TABLE #{quote_table_name(table_name)} #{change_column_default_for_alter(table_name, column_name, default_or_changes)}" end def change_column_null(table_name, column_name, null, default = nil) #:nodoc: clear_cache! unless null || default.nil? column = column_for(table_name, column_name) - execute("UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL") if column + execute "UPDATE #{quote_table_name(table_name)} SET #{quote_column_name(column_name)}=#{quote_default_expression(default, column)} WHERE #{quote_column_name(column_name)} IS NULL" if column end - execute("ALTER TABLE #{quote_table_name(table_name)} ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL") + execute "ALTER TABLE #{quote_table_name(table_name)} #{change_column_null_for_alter(table_name, column_name, null, default)}" end # Adds comment for given table column or drops it if +comment+ is a +nil+ @@ -471,8 +433,8 @@ module ActiveRecord end def add_index(table_name, column_name, options = {}) #:nodoc: - index_name, index_type, index_columns, index_options, index_algorithm, index_using, comment = add_index_options(table_name, column_name, options) - execute("CREATE #{index_type} INDEX #{index_algorithm} #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} #{index_using} (#{index_columns})#{index_options}").tap do + index_name, index_type, index_columns_and_opclasses, index_options, index_algorithm, index_using, comment = add_index_options(table_name, column_name, options) + execute("CREATE #{index_type} INDEX #{index_algorithm} #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} #{index_using} (#{index_columns_and_opclasses})#{index_options}").tap do execute "COMMENT ON INDEX #{quote_column_name(index_name)} IS #{quote(comment)}" if comment end end @@ -512,7 +474,7 @@ module ActiveRecord def foreign_keys(table_name) scope = quoted_scope(table_name) fk_info = exec_query(<<-SQL.strip_heredoc, "SCHEMA") - SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete + SELECT t2.oid::regclass::text AS to_table, a1.attname AS column, a2.attname AS primary_key, c.conname AS name, c.confupdtype AS on_update, c.confdeltype AS on_delete, c.convalidated AS valid FROM pg_constraint c JOIN pg_class t1 ON c.conrelid = t1.oid JOIN pg_class t2 ON c.confrelid = t2.oid @@ -534,6 +496,7 @@ module ActiveRecord options[:on_delete] = extract_foreign_key_action(row["on_delete"]) options[:on_update] = extract_foreign_key_action(row["on_update"]) + options[:validate] = row["valid"] ForeignKeyDefinition.new(table_name, row["to_table"], options) end @@ -594,6 +557,43 @@ module ActiveRecord PostgreSQL::SchemaDumper.create(self, options) end + # Validates the given constraint. + # + # Validates the constraint named +constraint_name+ on +accounts+. + # + # validate_constraint :accounts, :constraint_name + def validate_constraint(table_name, constraint_name) + return unless supports_validate_constraints? + + at = create_alter_table table_name + at.validate_constraint constraint_name + + execute schema_creation.accept(at) + end + + # Validates the given foreign key. + # + # Validates the foreign key on +accounts.branch_id+. + # + # validate_foreign_key :accounts, :branches + # + # Validates the foreign key on +accounts.owner_id+. + # + # validate_foreign_key :accounts, column: :owner_id + # + # Validates the foreign key named +special_fk_name+ on the +accounts+ table. + # + # validate_foreign_key :accounts, name: :special_fk_name + # + # The +options+ hash accepts the same keys as SchemaStatements#add_foreign_key. + def validate_foreign_key(from_table, options_or_to_table = {}) + return unless supports_validate_constraints? + + fk_name_to_validate = foreign_key_for!(from_table, options_or_to_table).name + + validate_constraint from_table, fk_name_to_validate + end + private def schema_creation PostgreSQL::SchemaCreation.new(self) @@ -603,6 +603,10 @@ module ActiveRecord PostgreSQL::TableDefinition.new(*args) end + def create_alter_table(name) + PostgreSQL::AlterTable.new create_table_definition(name) + end + def new_column_from_field(table_name, field) column_name, type, default, notnull, oid, fmod, collation, comment = field type_metadata = fetch_type_metadata(column_name, type, oid.to_i, fmod.to_i) @@ -617,7 +621,8 @@ module ActiveRecord table_name, default_function, collation, - comment: comment.presence + comment: comment.presence, + max_identifier_length: max_identifier_length ) end @@ -641,6 +646,66 @@ module ActiveRecord end end + def change_column_sql(table_name, column_name, type, options = {}) + quoted_column_name = quote_column_name(column_name) + sql_type = type_to_sql(type, options) + sql = "ALTER COLUMN #{quoted_column_name} TYPE #{sql_type}".dup + if options[:collation] + sql << " COLLATE \"#{options[:collation]}\"" + end + if options[:using] + sql << " USING #{options[:using]}" + elsif options[:cast_as] + cast_as_type = type_to_sql(options[:cast_as], options) + sql << " USING CAST(#{quoted_column_name} AS #{cast_as_type})" + end + + sql + end + + def change_column_for_alter(table_name, column_name, type, options = {}) + sqls = [change_column_sql(table_name, column_name, type, options)] + procs = [] + sqls << change_column_default_for_alter(table_name, column_name, options[:default]) if options.key?(:default) + sqls << change_column_null_for_alter(table_name, column_name, options[:null], options[:default]) if options.key?(:null) + procs << Proc.new { change_column_comment(table_name, column_name, options[:comment]) } if options.key?(:comment) + + [sqls, procs] + end + + + # Changes the default value of a table column. + def change_column_default_for_alter(table_name, column_name, default_or_changes) # :nodoc: + column = column_for(table_name, column_name) + return unless column + + default = extract_new_default_value(default_or_changes) + alter_column_query = "ALTER COLUMN #{quote_column_name(column_name)} %s" + if default.nil? + # <tt>DEFAULT NULL</tt> results in the same behavior as <tt>DROP DEFAULT</tt>. However, PostgreSQL will + # cast the default to the columns type, which leaves us with a default like "default NULL::character varying". + alter_column_query % "DROP DEFAULT" + else + alter_column_query % "SET DEFAULT #{quote_default_expression(default, column)}" + end + end + + def change_column_null_for_alter(table_name, column_name, null, default = nil) #:nodoc: + "ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL" + end + + def add_index_opclass(quoted_columns, **options) + opclasses = options_for_index_columns(options[:opclass]) + quoted_columns.each do |name, column| + column << " #{opclasses[name]}" if opclasses[name].present? + end + end + + def add_options_for_index_columns(quoted_columns, **options) + quoted_columns = add_index_opclass(quoted_columns, options) + super + end + def data_source_sql(name = nil, type: nil) scope = quoted_scope(name, type: type) scope[:type] ||= "'r','v','m'" # (r)elation/table, (v)iew, (m)aterialized view diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 4d37a292d6..23fc69d649 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -4,20 +4,20 @@ gem "pg", "~> 0.18" require "pg" -require_relative "abstract_adapter" -require_relative "statement_pool" -require_relative "postgresql/column" -require_relative "postgresql/database_statements" -require_relative "postgresql/explain_pretty_printer" -require_relative "postgresql/oid" -require_relative "postgresql/quoting" -require_relative "postgresql/referential_integrity" -require_relative "postgresql/schema_creation" -require_relative "postgresql/schema_definitions" -require_relative "postgresql/schema_dumper" -require_relative "postgresql/schema_statements" -require_relative "postgresql/type_metadata" -require_relative "postgresql/utils" +require "active_record/connection_adapters/abstract_adapter" +require "active_record/connection_adapters/statement_pool" +require "active_record/connection_adapters/postgresql/column" +require "active_record/connection_adapters/postgresql/database_statements" +require "active_record/connection_adapters/postgresql/explain_pretty_printer" +require "active_record/connection_adapters/postgresql/oid" +require "active_record/connection_adapters/postgresql/quoting" +require "active_record/connection_adapters/postgresql/referential_integrity" +require "active_record/connection_adapters/postgresql/schema_creation" +require "active_record/connection_adapters/postgresql/schema_definitions" +require "active_record/connection_adapters/postgresql/schema_dumper" +require "active_record/connection_adapters/postgresql/schema_statements" +require "active_record/connection_adapters/postgresql/type_metadata" +require "active_record/connection_adapters/postgresql/utils" module ActiveRecord module ConnectionHandling # :nodoc: @@ -142,6 +142,10 @@ module ActiveRecord true end + def supports_validate_constraints? + true + end + def supports_views? true end @@ -166,7 +170,7 @@ module ActiveRecord { concurrently: "CONCURRENTLY" } end - class StatementPool < ConnectionAdapters::StatementPool + class StatementPool < ConnectionAdapters::StatementPool # :nodoc: def initialize(connection, max) super(max) @connection = connection @@ -182,7 +186,6 @@ module ActiveRecord end private - def dealloc(key) @connection.query "DEALLOCATE #{key}" if connection_active? rescue PG::Error @@ -273,6 +276,11 @@ module ActiveRecord end end + def discard! # :nodoc: + @connection.socket_io.reopen(IO::NULL) + @connection = nil + end + def native_database_types #:nodoc: NATIVE_DATABASE_TYPES end @@ -312,14 +320,14 @@ module ActiveRecord def get_advisory_lock(lock_id) # :nodoc: unless lock_id.is_a?(Integer) && lock_id.bit_length <= 63 - raise(ArgumentError, "Postgres requires advisory lock ids to be a signed 64 bit integer") + raise(ArgumentError, "PostgreSQL requires advisory lock ids to be a signed 64 bit integer") end query_value("SELECT pg_try_advisory_lock(#{lock_id})") end def release_advisory_lock(lock_id) # :nodoc: unless lock_id.is_a?(Integer) && lock_id.bit_length <= 63 - raise(ArgumentError, "Postgres requires advisory lock ids to be a signed 64 bit integer") + raise(ArgumentError, "PostgreSQL requires advisory lock ids to be a signed 64 bit integer") end query_value("SELECT pg_advisory_unlock(#{lock_id})") end @@ -337,25 +345,20 @@ module ActiveRecord end def extension_enabled?(name) - 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.cast_values.first - end + res = exec_query("SELECT EXISTS(SELECT * FROM pg_available_extensions WHERE name = '#{name}' AND installed_version IS NOT NULL) as enabled", "SCHEMA") + res.cast_values.first end def extensions - if supports_extensions? - exec_query("SELECT extname FROM pg_extension", "SCHEMA").cast_values - else - super - end + exec_query("SELECT extname FROM pg_extension", "SCHEMA").cast_values end # Returns the configured supported identifier length supported by PostgreSQL - def table_alias_length + def max_identifier_length @max_identifier_length ||= query_value("SHOW max_identifier_length", "SCHEMA").to_i end - alias index_name_length table_alias_length + alias table_alias_length max_identifier_length + alias index_name_length max_identifier_length # Set the authorized user for this session def session_auth=(user) @@ -387,7 +390,6 @@ module ActiveRecord end private - # See https://www.postgresql.org/docs/current/static/errcodes-appendix.html VALUE_LIMIT_VIOLATION = "22001" NUMERIC_VALUE_OUT_OF_RANGE = "22003" @@ -396,6 +398,8 @@ module ActiveRecord UNIQUE_VIOLATION = "23505" SERIALIZATION_FAILURE = "40001" DEADLOCK_DETECTED = "40P01" + LOCK_NOT_AVAILABLE = "55P03" + QUERY_CANCELED = "57014" def translate_exception(exception, message) return exception unless exception.respond_to?(:result) @@ -415,6 +419,10 @@ module ActiveRecord SerializationFailure.new(message) when DEADLOCK_DETECTED Deadlocked.new(message) + when LOCK_NOT_AVAILABLE + LockWaitTimeout.new(message) + when QUERY_CANCELED + QueryCanceled.new(message) else super end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb index 501f17dbad..c9855019c1 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_definitions.rb @@ -3,27 +3,16 @@ module ActiveRecord module ConnectionAdapters module SQLite3 - module ColumnMethods - def primary_key(name, type = :primary_key, **options) - if %i(integer bigint).include?(type) && (options.delete(:auto_increment) == true || !options.key?(:default)) - type = :primary_key - end - - super - end - end - class TableDefinition < ActiveRecord::ConnectionAdapters::TableDefinition - include ColumnMethods - def references(*args, **options) super(*args, type: :integer, **options) end alias :belongs_to :references - end - class Table < ActiveRecord::ConnectionAdapters::Table - include ColumnMethods + private + def integer_like_primary_key_type(type, options) + :primary_key + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb index a512702b7b..58e5138e02 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3/schema_statements.rb @@ -5,13 +5,7 @@ module ActiveRecord module SQLite3 module SchemaStatements # :nodoc: # Returns an array of indexes for the given table. - def indexes(table_name, name = nil) - if name - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing name to #indexes is deprecated without replacement. - MSG - end - + def indexes(table_name) exec_query("PRAGMA index_list(#{quote_table_name(table_name)})", "SCHEMA").map do |row| index_sql = query_value(<<-SQL, "SCHEMA") SELECT sql @@ -29,20 +23,26 @@ module ActiveRecord col["name"] end + # Add info on sort order for columns (only desc order is explicitly specified, asc is + # the default) + orders = {} + if index_sql # index_sql can be null in case of primary key indexes + index_sql.scan(/"(\w+)" DESC/).flatten.each { |order_column| + orders[order_column] = :desc + } + end + IndexDefinition.new( table_name, row["name"], row["unique"] != 0, columns, - where: where + where: where, + orders: orders ) end end - def update_table_definition(table_name, base) - SQLite3::Table.new(table_name, base) - end - def create_schema_dumper(options) SQLite3::SchemaDumper.create(self, options) end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index 6fdd666486..c72db15ce3 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -1,13 +1,13 @@ # frozen_string_literal: true -require_relative "abstract_adapter" -require_relative "statement_pool" -require_relative "sqlite3/explain_pretty_printer" -require_relative "sqlite3/quoting" -require_relative "sqlite3/schema_creation" -require_relative "sqlite3/schema_definitions" -require_relative "sqlite3/schema_dumper" -require_relative "sqlite3/schema_statements" +require "active_record/connection_adapters/abstract_adapter" +require "active_record/connection_adapters/statement_pool" +require "active_record/connection_adapters/sqlite3/explain_pretty_printer" +require "active_record/connection_adapters/sqlite3/quoting" +require "active_record/connection_adapters/sqlite3/schema_creation" +require "active_record/connection_adapters/sqlite3/schema_definitions" +require "active_record/connection_adapters/sqlite3/schema_dumper" +require "active_record/connection_adapters/sqlite3/schema_statements" gem "sqlite3", "~> 1.3.6" require "sqlite3" @@ -70,7 +70,8 @@ module ActiveRecord time: { name: "time" }, date: { name: "date" }, binary: { name: "blob" }, - boolean: { name: "boolean" } + boolean: { name: "boolean" }, + json: { name: "json" }, } ## @@ -90,9 +91,8 @@ module ActiveRecord # Rails.application.config.active_record.sqlite3.represent_boolean_as_integer = true class_attribute :represent_boolean_as_integer, default: false - class StatementPool < ConnectionAdapters::StatementPool + class StatementPool < ConnectionAdapters::StatementPool # :nodoc: private - def dealloc(stmt) stmt[:stmt].close unless stmt[:stmt].closed? end @@ -135,6 +135,10 @@ module ActiveRecord true end + def supports_json? + true + end + def supports_multi_insert? sqlite_version >= "3.7.11" end @@ -370,6 +374,10 @@ module ActiveRecord end private + def initialize_type_map(m = type_map) + super + register_class_with_limit m, %r(int)i, SQLite3Integer + end def table_structure(table_name) structure = exec_query("PRAGMA table_info(#{quote_table_name(table_name)})", "SCHEMA") @@ -399,18 +407,21 @@ module ActiveRecord options[:id] = false create_table(to, options) do |definition| @definition = definition - @definition.primary_key(from_primary_key) if from_primary_key.present? + if from_primary_key.is_a?(Array) + @definition.primary_keys from_primary_key + end columns(from).each do |column| column_name = options[:rename] ? (options[:rename][column.name] || options[:rename][column.name.to_sym] || column.name) : column.name - next if column_name == from_primary_key @definition.column(column_name, column.type, limit: column.limit, default: column.default, precision: column.precision, scale: column.scale, - null: column.null, collation: column.collation) + null: column.null, collation: column.collation, + primary_key: column_name == from_primary_key + ) end yield @definition if block_given? end @@ -423,6 +434,9 @@ module ActiveRecord def copy_table_indexes(from, to, rename = {}) indexes(from).each do |index| name = index.name + # indexes sqlite creates for internal use start with `sqlite_` and + # don't need to be copied + next if name.starts_with?("sqlite_") if to == "a#{from}" name = "t#{name}" elsif from == "a#{to}" @@ -525,6 +539,17 @@ module ActiveRecord def configure_connection execute("PRAGMA foreign_keys = ON", "SCHEMA") end + + class SQLite3Integer < Type::Integer # :nodoc: + private + def _limit + # INTEGER storage class can be stored 8 bytes value. + # See https://www.sqlite.org/datatype3.html#storage_classes_and_datatypes + limit || 8 + end + end + + ActiveRecord::Type.register(:integer, SQLite3Integer, adapter: :sqlite3) end ActiveSupport.run_load_hooks(:active_record_sqlite3adapter, SQLite3Adapter) end diff --git a/activerecord/lib/active_record/connection_handling.rb b/activerecord/lib/active_record/connection_handling.rb index 9a47edfba4..88d28dc52a 100644 --- a/activerecord/lib/active_record/connection_handling.rb +++ b/activerecord/lib/active_record/connection_handling.rb @@ -140,6 +140,6 @@ module ActiveRecord end delegate :clear_active_connections!, :clear_reloadable_connections!, - :clear_all_connections!, to: :connection_handler + :clear_all_connections!, :flush_idle_connections!, to: :connection_handler end end diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 945c4eca78..481159e501 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -76,25 +76,13 @@ module ActiveRecord # scope being ignored is error-worthy, rather than a warning. mattr_accessor :error_on_ignored_order, instance_writer: false, default: false - def self.error_on_ignored_order_or_limit - ActiveSupport::Deprecation.warn(<<-MSG.squish) - The flag error_on_ignored_order_or_limit is deprecated. Limits are - now supported. Please use error_on_ignored_order instead. - MSG - error_on_ignored_order - end - - def error_on_ignored_order_or_limit - self.class.error_on_ignored_order_or_limit - end - - def self.error_on_ignored_order_or_limit=(value) - ActiveSupport::Deprecation.warn(<<-MSG.squish) - The flag error_on_ignored_order_or_limit is deprecated. Limits are - now supported. Please use error_on_ignored_order= instead. - MSG - self.error_on_ignored_order = value - end + # :singleton-method: + # Specify the behavior for unsafe raw query methods. Values are as follows + # deprecated - Warnings are logged when unsafe raw SQL is passed to + # query methods. + # disabled - Unsafe raw SQL passed to query methods results in + # UnknownAttributeReference exception. + mattr_accessor :allow_unsafe_raw_sql, instance_writer: false, default: :deprecated ## # :singleton-method: @@ -289,7 +277,8 @@ module ActiveRecord relation = Relation.create(self, arel_table, predicate_builder) if finder_needs_type_condition? && !ignore_default_scope? - relation.where(type_condition).create_with(inheritance_column.to_s => sti_name) + relation.where!(type_condition) + relation.create_with!(inheritance_column.to_s => sti_name) else relation end diff --git a/activerecord/lib/active_record/counter_cache.rb b/activerecord/lib/active_record/counter_cache.rb index 5005d58f1c..ee4f818cbf 100644 --- a/activerecord/lib/active_record/counter_cache.rb +++ b/activerecord/lib/active_record/counter_cache.rb @@ -53,7 +53,7 @@ module ActiveRecord unscoped.where(primary_key => object.id).update_all(updates) end - return true + true end # A generic "counter updater" implementation, intended primarily to be diff --git a/activerecord/lib/active_record/enum.rb b/activerecord/lib/active_record/enum.rb index f373b98035..1a3e6e4d09 100644 --- a/activerecord/lib/active_record/enum.rb +++ b/activerecord/lib/active_record/enum.rb @@ -221,6 +221,8 @@ module ActiveRecord def detect_enum_conflict!(enum_name, method_name, klass_method = false) if klass_method && dangerous_class_method?(method_name) raise_conflict_error(enum_name, method_name, type: "class") + elsif klass_method && method_defined_within?(method_name, Relation) + raise_conflict_error(enum_name, method_name, type: "class", source: Relation.name) elsif !klass_method && dangerous_attribute_method?(method_name) raise_conflict_error(enum_name, method_name) elsif !klass_method && method_defined_within?(method_name, _enum_methods_module, Module) diff --git a/activerecord/lib/active_record/errors.rb b/activerecord/lib/active_record/errors.rb index 9ef3316393..efcbd44776 100644 --- a/activerecord/lib/active_record/errors.rb +++ b/activerecord/lib/active_record/errors.rb @@ -335,8 +335,40 @@ module ActiveRecord class IrreversibleOrderError < ActiveRecordError end - # TransactionTimeout will be raised when lock wait timeout expires. - # Wait time value is set by innodb_lock_wait_timeout. - class TransactionTimeout < StatementInvalid + # LockWaitTimeout will be raised when lock wait timeout exceeded. + class LockWaitTimeout < StatementInvalid + end + + # StatementTimeout will be raised when statement timeout exceeded. + class StatementTimeout < StatementInvalid + end + + # QueryCanceled will be raised when canceling statement due to user request. + class QueryCanceled < StatementInvalid + end + + # UnknownAttributeReference is raised when an unknown and potentially unsafe + # value is passed to a query method when allow_unsafe_raw_sql is set to + # :disabled. For example, passing a non column name value to a relation's + # #order method might cause this exception. + # + # When working around this exception, caution should be taken to avoid SQL + # injection vulnerabilities when passing user-provided values to query + # methods. Known-safe values can be passed to query methods by wrapping them + # in Arel.sql. + # + # For example, with allow_unsafe_raw_sql set to :disabled, the following + # code would raise this exception: + # + # Post.order("length(title)").first + # + # The desired result can be accomplished by wrapping the known-safe string + # in Arel.sql: + # + # Post.order(Arel.sql("length(title)")).first + # + # Again, such a workaround should *not* be used when passing user-provided + # values, such as request parameters or model attributes to query methods. + class UnknownAttributeReference < ActiveRecordError end end diff --git a/activerecord/lib/active_record/explain.rb b/activerecord/lib/active_record/explain.rb index 8bb54a24b7..7ccb938888 100644 --- a/activerecord/lib/active_record/explain.rb +++ b/activerecord/lib/active_record/explain.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "explain_registry" +require "active_record/explain_registry" module ActiveRecord module Explain diff --git a/activerecord/lib/active_record/explain_subscriber.rb b/activerecord/lib/active_record/explain_subscriber.rb index 9252fa3fed..a86217abc0 100644 --- a/activerecord/lib/active_record/explain_subscriber.rb +++ b/activerecord/lib/active_record/explain_subscriber.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true require "active_support/notifications" -require_relative "explain_registry" +require "active_record/explain_registry" module ActiveRecord class ExplainSubscriber # :nodoc: diff --git a/activerecord/lib/active_record/fixtures.rb b/activerecord/lib/active_record/fixtures.rb index 12169fffa9..86f13d75d5 100644 --- a/activerecord/lib/active_record/fixtures.rb +++ b/activerecord/lib/active_record/fixtures.rb @@ -6,8 +6,8 @@ require "zlib" require "set" require "active_support/dependencies" require "active_support/core_ext/digest/uuid" -require_relative "fixture_set/file" -require_relative "errors" +require "active_record/fixture_set/file" +require "active_record/errors" module ActiveRecord class FixtureClassNotFound < ActiveRecord::ActiveRecordError #:nodoc: diff --git a/activerecord/lib/active_record/gem_version.rb b/activerecord/lib/active_record/gem_version.rb index 7ccb57b305..7e47dac016 100644 --- a/activerecord/lib/active_record/gem_version.rb +++ b/activerecord/lib/active_record/gem_version.rb @@ -10,7 +10,7 @@ module ActiveRecord MAJOR = 5 MINOR = 2 TINY = 0 - PRE = "alpha" + PRE = "beta2" STRING = [MAJOR, MINOR, TINY, PRE].compact.join(".") end diff --git a/activerecord/lib/active_record/internal_metadata.rb b/activerecord/lib/active_record/internal_metadata.rb index 14795cc815..5a65edf27e 100644 --- a/activerecord/lib/active_record/internal_metadata.rb +++ b/activerecord/lib/active_record/internal_metadata.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true -require_relative "scoping/default" -require_relative "scoping/named" +require "active_record/scoping/default" +require "active_record/scoping/named" module ActiveRecord # This class is used to create a table that keeps track of values and keys such diff --git a/activerecord/lib/active_record/legacy_yaml_adapter.rb b/activerecord/lib/active_record/legacy_yaml_adapter.rb index 23644aab8f..ffa095dd94 100644 --- a/activerecord/lib/active_record/legacy_yaml_adapter.rb +++ b/activerecord/lib/active_record/legacy_yaml_adapter.rb @@ -8,7 +8,7 @@ module ActiveRecord case coder["active_record_yaml_version"] when 1, 2 then coder else - if coder["attributes"].is_a?(AttributeSet) + if coder["attributes"].is_a?(ActiveModel::AttributeSet) Rails420.convert(klass, coder) else Rails41.convert(klass, coder) diff --git a/activerecord/lib/active_record/locking/pessimistic.rb b/activerecord/lib/active_record/locking/pessimistic.rb index 72bccd4906..bb85c47e06 100644 --- a/activerecord/lib/active_record/locking/pessimistic.rb +++ b/activerecord/lib/active_record/locking/pessimistic.rb @@ -63,12 +63,13 @@ module ActiveRecord def lock!(lock = true) if persisted? if changed? - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Locking a record with unpersisted changes is deprecated and will raise an - exception in Rails 5.2. Use `save` to persist the changes, or `reload` to - discard them explicitly. + raise(<<-MSG.squish) + Locking a record with unpersisted changes is not supported. Use + `save` to persist the changes, or `reload` to discard them + explicitly. MSG end + reload(lock: lock) end self diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 52ca4671c2..5c10d4ff24 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -354,9 +354,9 @@ module ActiveRecord # to match the structure of your database. # # To roll the database back to a previous migration version, use - # <tt>rails db:migrate VERSION=X</tt> where <tt>X</tt> is the version to which + # <tt>rails db:rollback VERSION=X</tt> where <tt>X</tt> is the version to which # you wish to downgrade. Alternatively, you can also use the STEP option if you - # wish to rollback last few migrations. <tt>rails db:migrate STEP=2</tt> will rollback + # wish to rollback last few migrations. <tt>rails db:rollback STEP=2</tt> will rollback # the latest two migrations. # # If any of the migrations throw an <tt>ActiveRecord::IrreversibleMigration</tt> exception, @@ -581,7 +581,8 @@ module ActiveRecord def load_schema_if_pending! if ActiveRecord::Migrator.needs_migration? || !ActiveRecord::Migrator.any_migrations? # Roundtrip to Rake to allow plugins to hook into database initialization. - FileUtils.cd Rails.root do + root = defined?(ENGINE_ROOT) ? ENGINE_ROOT : Rails.root + FileUtils.cd(root) do current_config = Base.connection_config Base.clear_all_connections! system("bin/rails db:test:prepare") @@ -733,6 +734,24 @@ module ActiveRecord execute_block { yield helper } end + # Used to specify an operation that is only run when migrating up + # (for example, populating a new column with its initial values). + # + # In the following example, the new column +published+ will be given + # the value +true+ for all existing records. + # + # class AddPublishedToPosts < ActiveRecord::Migration[5.2] + # def change + # add_column :posts, :published, :boolean, default: false + # up_only do + # execute "update posts set published = 'true'" + # end + # end + # end + def up_only + execute_block { yield } unless reverting? + end + # Runs the given migration classes. # Last argument can specify options: # - :direction (default is :up) @@ -1026,12 +1045,7 @@ module ActiveRecord new(:up, migrations(migrations_paths), nil) end - def schema_migrations_table_name - SchemaMigration.table_name - end - deprecate :schema_migrations_table_name - - def get_all_versions(connection = Base.connection) + def get_all_versions if SchemaMigration.table_exists? SchemaMigration.all_versions.map(&:to_i) else @@ -1039,12 +1053,13 @@ module ActiveRecord end end - def current_version(connection = Base.connection) - get_all_versions(connection).max || 0 + def current_version(connection = nil) + get_all_versions.max || 0 + rescue ActiveRecord::NoDatabaseError end - def needs_migration?(connection = Base.connection) - (migrations(migrations_paths).collect(&:version) - get_all_versions(connection)).size > 0 + def needs_migration?(connection = nil) + (migrations(migrations_paths).collect(&:version) - get_all_versions).size > 0 end def any_migrations? @@ -1229,7 +1244,7 @@ module ActiveRecord # Return true if a valid version is not provided. def invalid_target? - !target && @target_version && @target_version > 0 + @target_version && @target_version != 0 && !target end def execute_migration_in_transaction(migration, direction) diff --git a/activerecord/lib/active_record/migration/command_recorder.rb b/activerecord/lib/active_record/migration/command_recorder.rb index a3a5e0fa16..81ef4828f8 100644 --- a/activerecord/lib/active_record/migration/command_recorder.rb +++ b/activerecord/lib/active_record/migration/command_recorder.rb @@ -110,7 +110,7 @@ module ActiveRecord private - module StraightReversions + module StraightReversions # :nodoc: private { transaction: :transaction, execute_block: :execute_block, @@ -161,8 +161,8 @@ module ActiveRecord table, columns, options = *args options ||= {} - index_name = options[:name] - options_hash = index_name ? { name: index_name } : { column: columns } + options_hash = options.slice(:name, :algorithm) + options_hash[:column] = columns if !options_hash[:name] [:remove_index, [table, options_hash]] end diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb index 784292f3f9..bd8c054c28 100644 --- a/activerecord/lib/active_record/migration/compatibility.rb +++ b/activerecord/lib/active_record/migration/compatibility.rb @@ -16,10 +16,27 @@ module ActiveRecord V5_2 = Current class V5_1 < V5_2 + def change_column(table_name, column_name, type, options = {}) + if adapter_name == "PostgreSQL" + clear_cache! + sql = connection.send(:change_column_sql, table_name, column_name, type, options) + execute "ALTER TABLE #{quote_table_name(table_name)} #{sql}" + change_column_default(table_name, column_name, options[:default]) if options.key?(:default) + change_column_null(table_name, column_name, options[:null], options[:default]) if options.key?(:null) + change_column_comment(table_name, column_name, options[:comment]) if options.key?(:comment) + else + super + end + end end class V5_0 < V5_1 module TableDefinition + def primary_key(name, type = :primary_key, **options) + type = :integer if type == :primary_key + super + end + def references(*args, **options) super(*args, type: :integer, **options) end @@ -47,11 +64,8 @@ module ActiveRecord end if block_given? - super(table_name, options) do |t| - class << t - prepend TableDefinition - end - yield t + super do |t| + yield compatible_table_definition(t) end else super @@ -60,21 +74,46 @@ module ActiveRecord def change_table(table_name, options = {}) if block_given? - super(table_name, options) do |t| - class << t - prepend TableDefinition - end - yield t + super do |t| + yield compatible_table_definition(t) end else super end end + def create_join_table(table_1, table_2, column_options: {}, **options) + column_options.reverse_merge!(type: :integer) + + if block_given? + super do |t| + yield compatible_table_definition(t) + end + else + super + end + end + + def add_column(table_name, column_name, type, options = {}) + if type == :primary_key + type = :integer + options[:primary_key] = true + end + super + end + def add_reference(table_name, ref_name, **options) super(table_name, ref_name, type: :integer, **options) end alias :add_belongs_to :add_reference + + private + def compatible_table_definition(t) + class << t + prepend TableDefinition + end + t + end end class V4_2 < V5_0 @@ -93,11 +132,8 @@ module ActiveRecord def create_table(table_name, options = {}) if block_given? - super(table_name, options) do |t| - class << t - prepend TableDefinition - end - yield t + super do |t| + yield compatible_table_definition(t) end else super @@ -106,11 +142,8 @@ module ActiveRecord def change_table(table_name, options = {}) if block_given? - super(table_name, options) do |t| - class << t - prepend TableDefinition - end - yield t + super do |t| + yield compatible_table_definition(t) end else super @@ -146,6 +179,12 @@ module ActiveRecord end private + def compatible_table_definition(t) + class << t + prepend TableDefinition + end + super + end def index_name_for_remove(table_name, options = {}) index_name = index_name(table_name, options) diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 34c0ef4e75..1941d3d5ea 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -115,20 +115,6 @@ module ActiveRecord # If true, the default table name for a Product class will be "products". If false, it would just be "product". # See table_name for the full rules on table/class naming. This is true, by default. - ## - # :singleton-method: ignored_columns - # :call-seq: ignored_columns - # - # The list of columns names the model should ignore. Ignored columns won't have attribute - # accessors defined, and won't be referenced in SQL queries. - - ## - # :singleton-method: ignored_columns= - # :call-seq: ignored_columns=(columns) - # - # Sets the columns names the model should ignore. Ignored columns won't have attribute - # accessors defined, and won't be referenced in SQL queries. - included do mattr_accessor :primary_key_prefix_type, instance_writer: false @@ -138,9 +124,9 @@ module ActiveRecord class_attribute :internal_metadata_table_name, instance_accessor: false, default: "ar_internal_metadata" class_attribute :protected_environments, instance_accessor: false, default: [ "production" ] class_attribute :pluralize_table_names, instance_writer: false, default: true - class_attribute :ignored_columns, instance_accessor: false, default: [].freeze self.inheritance_column = "type" + self.ignored_columns = [].freeze delegate :type_for_attribute, to: :class @@ -271,6 +257,22 @@ module ActiveRecord @explicit_inheritance_column = true end + # The list of columns names the model should ignore. Ignored columns won't have attribute + # accessors defined, and won't be referenced in SQL queries. + def ignored_columns + if defined?(@ignored_columns) + @ignored_columns + else + superclass.ignored_columns + end + end + + # Sets the columns names the model should ignore. Ignored columns won't have attribute + # accessors defined, and won't be referenced in SQL queries. + def ignored_columns=(columns) + @ignored_columns = columns.map(&:to_s) + end + def sequence_name if base_class == self @sequence_name ||= reset_sequence_name @@ -321,11 +323,11 @@ module ActiveRecord end def attributes_builder # :nodoc: - @attributes_builder ||= AttributeSet::Builder.new(attribute_types, primary_key) do |name| - unless columns_hash.key?(name) - _default_attributes[name].dup - end + unless defined?(@attributes_builder) && @attributes_builder + defaults = _default_attributes.except(*(column_names - [primary_key])) + @attributes_builder = ActiveModel::AttributeSet::Builder.new(attribute_types, defaults) end + @attributes_builder end def columns_hash # :nodoc: @@ -344,7 +346,7 @@ module ActiveRecord end def yaml_encoder # :nodoc: - @yaml_encoder ||= AttributeSet::YAMLEncoder.new(attribute_types) + @yaml_encoder ||= ActiveModel::AttributeSet::YAMLEncoder.new(attribute_types) end # Returns the type of the attribute with the given name, after applying @@ -374,7 +376,7 @@ module ActiveRecord end def _default_attributes # :nodoc: - @default_attributes ||= AttributeSet.new({}) + @default_attributes ||= ActiveModel::AttributeSet.new({}) end # Returns an array of column names as strings. diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb index 435c81c153..fa20bce3a9 100644 --- a/activerecord/lib/active_record/nested_attributes.rb +++ b/activerecord/lib/active_record/nested_attributes.rb @@ -63,6 +63,18 @@ module ActiveRecord # member.update params[:member] # member.avatar.icon # => 'sad' # + # If you want to update the current avatar without providing the id, you must add <tt>:update_only</tt> option. + # + # class Member < ActiveRecord::Base + # has_one :avatar + # accepts_nested_attributes_for :avatar, update_only: true + # end + # + # params = { member: { avatar_attributes: { icon: 'sad' } } } + # member.update params[:member] + # member.avatar.id # => 2 + # member.avatar.icon # => 'sad' + # # By default you will only be able to set and update attributes on the # associated model. If you want to destroy the associated model through the # attributes hash, you have to enable it first using the diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index fbbf9082cc..a13b0d0181 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -71,6 +71,132 @@ module ActiveRecord klass.allocate.init_with("attributes" => attributes, "new_record" => false, &block) end + # Updates an object (or multiple objects) and saves it to the database, if validations pass. + # The resulting object is returned whether the object was saved successfully to the database or not. + # + # ==== Parameters + # + # * +id+ - This should be the id or an array of ids to be updated. + # * +attributes+ - This should be a hash of attributes or an array of hashes. + # + # ==== Examples + # + # # Updates one record + # Person.update(15, user_name: "Samuel", group: "expert") + # + # # Updates multiple records + # people = { 1 => { "first_name" => "David" }, 2 => { "first_name" => "Jeremy" } } + # Person.update(people.keys, people.values) + # + # # Updates multiple records from the result of a relation + # people = Person.where(group: "expert") + # people.update(group: "masters") + # + # Note: Updating a large number of records will run an UPDATE + # query for each record, which may cause a performance issue. + # When running callbacks is not needed for each record update, + # it is preferred to use {update_all}[rdoc-ref:Relation#update_all] + # for updating all records in a single query. + def update(id = :all, attributes) + if id.is_a?(Array) + id.map { |one_id| find(one_id) }.each_with_index { |object, idx| + object.update(attributes[idx]) + } + elsif id == :all + all.each { |record| record.update(attributes) } + else + if ActiveRecord::Base === id + raise ArgumentError, + "You are passing an instance of ActiveRecord::Base to `update`. " \ + "Please pass the id of the object by calling `.id`." + end + object = find(id) + object.update(attributes) + object + end + end + + # Destroy an object (or multiple objects) that has the given id. The object is instantiated first, + # therefore all callbacks and filters are fired off before the object is deleted. This method is + # less efficient than #delete but allows cleanup methods and other actions to be run. + # + # This essentially finds the object (or multiple objects) with the given id, creates a new object + # from the attributes, and then calls destroy on it. + # + # ==== Parameters + # + # * +id+ - This should be the id or an array of ids to be destroyed. + # + # ==== Examples + # + # # Destroy a single object + # Todo.destroy(1) + # + # # Destroy multiple objects + # todos = [1,2,3] + # Todo.destroy(todos) + def destroy(id) + if id.is_a?(Array) + find(id).each(&:destroy) + else + find(id).destroy + end + end + + # Deletes the row with a primary key matching the +id+ argument, using a + # SQL +DELETE+ statement, and returns the number of rows deleted. Active + # Record objects are not instantiated, so the object's callbacks are not + # executed, including any <tt>:dependent</tt> association options. + # + # You can delete multiple rows at once by passing an Array of <tt>id</tt>s. + # + # Note: Although it is often much faster than the alternative, #destroy, + # skipping callbacks might bypass business logic in your application + # that ensures referential integrity or performs other essential jobs. + # + # ==== Examples + # + # # Delete a single row + # Todo.delete(1) + # + # # Delete multiple rows + # Todo.delete([2,3,4]) + def delete(id_or_array) + where(primary_key => id_or_array).delete_all + end + + def _insert_record(values) # :nodoc: + primary_key_value = nil + + if primary_key && Hash === values + arel_primary_key = arel_attribute(primary_key) + primary_key_value = values[arel_primary_key] + + if !primary_key_value && prefetch_primary_key? + primary_key_value = next_sequence_value + values[arel_primary_key] = primary_key_value + end + end + + if values.empty? + im = arel_table.compile_insert(connection.empty_insert_statement_value) + im.into arel_table + else + im = arel_table.compile_insert(_substitute_values(values)) + end + + connection.insert(im, "#{self} Create", primary_key || false, primary_key_value) + end + + def _update_record(values, id, id_was) # :nodoc: + bind = predicate_builder.build_bind_attribute(primary_key, id_was || id) + um = arel_table.where( + arel_attribute(primary_key).eq(bind) + ).compile_update(_substitute_values(values), primary_key) + + connection.update(um, "#{self} Update") + end + private # Called by +instantiate+ to decide which class to use for a new # record instance. @@ -80,6 +206,13 @@ module ActiveRecord def discriminate_class_for_record(record) self end + + def _substitute_values(values) + values.map do |attr, value| + bind = predicate_builder.build_bind_attribute(attr.name, value) + [attr, bind] + end + end end # Returns true if this object hasn't been saved yet -- that is, a record @@ -228,7 +361,7 @@ module ActiveRecord def becomes(klass) became = klass.new became.instance_variable_set("@attributes", @attributes) - became.instance_variable_set("@mutation_tracker", @mutation_tracker) if defined?(@mutation_tracker) + became.instance_variable_set("@mutations_from_database", @mutations_from_database) if defined?(@mutations_from_database) became.instance_variable_set("@changed_attributes", attributes_changed_by_setter) became.instance_variable_set("@new_record", new_record?) became.instance_variable_set("@destroyed", destroyed?) @@ -577,7 +710,7 @@ module ActiveRecord rows_affected = 0 @_trigger_update_callback = true else - rows_affected = self.class.unscoped._update_record attributes_values, id, id_in_database + rows_affected = self.class._update_record(attributes_values, id, id_in_database) @_trigger_update_callback = rows_affected > 0 end @@ -591,7 +724,7 @@ module ActiveRecord def _create_record(attribute_names = self.attribute_names) attributes_values = arel_attributes_with_values_for_create(attribute_names) - new_id = self.class.unscoped.insert attributes_values + new_id = self.class._insert_record(attributes_values) self.id ||= new_id if self.class.primary_key @new_record = false diff --git a/activerecord/lib/active_record/query_cache.rb b/activerecord/lib/active_record/query_cache.rb index 3d5babb8b7..8e23128333 100644 --- a/activerecord/lib/active_record/query_cache.rb +++ b/activerecord/lib/active_record/query_cache.rb @@ -26,16 +26,19 @@ module ActiveRecord end def self.run - caching_pool = ActiveRecord::Base.connection_pool - caching_was_enabled = caching_pool.query_cache_enabled + ActiveRecord::Base.connection_handler.connection_pool_list.map do |pool| + caching_was_enabled = pool.query_cache_enabled - caching_pool.enable_query_cache! + pool.enable_query_cache! - [caching_pool, caching_was_enabled] + [pool, caching_was_enabled] + end end - def self.complete((caching_pool, caching_was_enabled)) - caching_pool.disable_query_cache! unless caching_was_enabled + def self.complete(caching_pools) + caching_pools.each do |pool, caching_was_enabled| + pool.disable_query_cache! unless caching_was_enabled + end ActiveRecord::Base.connection_handler.connection_pool_list.each do |pool| pool.release_connection if pool.active_connection? && !pool.connection.transaction_open? diff --git a/activerecord/lib/active_record/querying.rb b/activerecord/lib/active_record/querying.rb index f780538319..3996d5661f 100644 --- a/activerecord/lib/active_record/querying.rb +++ b/activerecord/lib/active_record/querying.rb @@ -7,7 +7,7 @@ module ActiveRecord delegate :first_or_create, :first_or_create!, :first_or_initialize, to: :all delegate :find_or_create_by, :find_or_create_by!, :find_or_initialize_by, to: :all delegate :find_by, :find_by!, to: :all - delegate :destroy, :destroy_all, :delete, :delete_all, :update, :update_all, to: :all + delegate :destroy_all, :delete_all, :update_all, to: :all delegate :find_each, :find_in_batches, :in_batches, to: :all delegate :select, :group, :order, :except, :reorder, :limit, :offset, :joins, :left_joins, :left_outer_joins, :or, :where, :rewhere, :preload, :eager_load, :includes, :from, :lock, :readonly, :extending, diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index ead42d64ec..4538ed6a5f 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -53,8 +53,8 @@ module ActiveRecord # to avoid cross references when loading a constant for the # first time. Also, make it output to STDERR. console do |app| - require_relative "railties/console_sandbox" if app.sandbox? - require_relative "base" + require "active_record/railties/console_sandbox" if app.sandbox? + require "active_record/base" unless ActiveSupport::Logger.logger_outputs_to?(Rails.logger, STDERR, STDOUT) console = ActiveSupport::Logger.new(STDERR) Rails.logger.extend ActiveSupport::Logger.broadcast console @@ -62,7 +62,7 @@ module ActiveRecord end runner do - require_relative "base" + require "active_record/base" end initializer "active_record.initialize_timezone" do @@ -90,12 +90,15 @@ module ActiveRecord filename = File.join(app.config.paths["db"].first, "schema_cache.yml") if File.file?(filename) + current_version = ActiveRecord::Migrator.current_version + next if current_version.nil? + cache = YAML.load(File.read(filename)) - if cache.version == ActiveRecord::Migrator.current_version + if cache.version == current_version connection.schema_cache = cache connection_pool.schema_cache = cache.dup else - warn "Ignoring db/schema_cache.yml because it has expired. The current schema version is #{ActiveRecord::Migrator.current_version}, but the one in the cache is #{cache.version}." + warn "Ignoring db/schema_cache.yml because it has expired. The current schema version is #{current_version}, but the one in the cache is #{cache.version}." end end end @@ -106,7 +109,7 @@ module ActiveRecord initializer "active_record.warn_on_records_fetched_greater_than" do if config.active_record.warn_on_records_fetched_greater_than ActiveSupport.on_load(:active_record) do - require_relative "relation/record_fetch_warning" + require "active_record/relation/record_fetch_warning" end end end @@ -146,7 +149,7 @@ end_warning # Expose database runtime to controller for logging. initializer "active_record.log_runtime" do - require_relative "railties/controller_runtime" + require "active_record/railties/controller_runtime" ActiveSupport.on_load(:action_controller) do include ActiveRecord::Railties::ControllerRuntime end @@ -177,7 +180,16 @@ end_warning initializer "active_record.clear_active_connections" do config.after_initialize do ActiveSupport.on_load(:active_record) do + # Ideally the application doesn't connect to the database during boot, + # but sometimes it does. In case it did, we want to empty out the + # connection pools so that a non-database-using process (e.g. a master + # process in a forking server model) doesn't retain a needless + # connection. If it was needed, the incremental cost of reestablishing + # this connection is trivial: the rest of the pool would need to be + # populated anyway. + clear_active_connections! + flush_idle_connections! end end end diff --git a/activerecord/lib/active_record/railties/controller_runtime.rb b/activerecord/lib/active_record/railties/controller_runtime.rb index 3cf66980a5..2ae733f657 100644 --- a/activerecord/lib/active_record/railties/controller_runtime.rb +++ b/activerecord/lib/active_record/railties/controller_runtime.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true require "active_support/core_ext/module/attr_internal" -require_relative "../log_subscriber" +require "active_record/log_subscriber" module ActiveRecord module Railties # :nodoc: diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index 691b3612d8..fce3e1c5cf 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -4,16 +4,16 @@ require "active_record" db_namespace = namespace :db do desc "Set the environment value for the database" - task "environment:set" => [:environment, :load_config] do + task "environment:set" => :load_config do ActiveRecord::InternalMetadata.create_table ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment end - task check_protected_environments: [:environment, :load_config] do + task check_protected_environments: :load_config do ActiveRecord::Tasks::DatabaseTasks.check_protected_environments! end - task :load_config do + task load_config: :environment do ActiveRecord::Base.configurations = ActiveRecord::Tasks::DatabaseTasks.database_configuration || {} ActiveRecord::Migrator.migrations_paths = ActiveRecord::Tasks::DatabaseTasks.migrations_paths end @@ -56,7 +56,7 @@ db_namespace = namespace :db do end desc "Migrate the database (options: VERSION=x, VERBOSE=false, SCOPE=blog)." - task migrate: [:environment, :load_config] do + task migrate: :load_config do ActiveRecord::Tasks::DatabaseTasks.migrate db_namespace["_dump"].invoke end @@ -78,7 +78,7 @@ db_namespace = namespace :db do namespace :migrate do # desc 'Rollbacks the database one migration and re migrate up (options: STEP=x, VERSION=x).' - task redo: [:environment, :load_config] do + task redo: :load_config do raise "Empty VERSION provided" if ENV["VERSION"] && ENV["VERSION"].empty? if ENV["VERSION"] @@ -94,24 +94,35 @@ db_namespace = namespace :db do task reset: ["db:drop", "db:create", "db:migrate"] # desc 'Runs the "up" for a given migration VERSION.' - task up: [:environment, :load_config] do + task up: :load_config do raise "VERSION is required" if !ENV["VERSION"] || ENV["VERSION"].empty? - version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil - ActiveRecord::Migrator.run(:up, ActiveRecord::Tasks::DatabaseTasks.migrations_paths, version) + ActiveRecord::Tasks::DatabaseTasks.check_target_version + + ActiveRecord::Migrator.run( + :up, + ActiveRecord::Tasks::DatabaseTasks.migrations_paths, + ActiveRecord::Tasks::DatabaseTasks.target_version + ) db_namespace["_dump"].invoke end # desc 'Runs the "down" for a given migration VERSION.' - task down: [:environment, :load_config] do + task down: :load_config do raise "VERSION is required - To go down one migration, use db:rollback" if !ENV["VERSION"] || ENV["VERSION"].empty? - version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil - ActiveRecord::Migrator.run(:down, ActiveRecord::Tasks::DatabaseTasks.migrations_paths, version) + + ActiveRecord::Tasks::DatabaseTasks.check_target_version + + ActiveRecord::Migrator.run( + :down, + ActiveRecord::Tasks::DatabaseTasks.migrations_paths, + ActiveRecord::Tasks::DatabaseTasks.target_version + ) db_namespace["_dump"].invoke end desc "Display status of migrations" - task status: [:environment, :load_config] do + task status: :load_config do unless ActiveRecord::SchemaMigration.table_exists? abort "Schema migrations table does not exist yet." end @@ -129,14 +140,14 @@ db_namespace = namespace :db do end desc "Rolls the schema back to the previous version (specify steps w/ STEP=n)." - task rollback: [:environment, :load_config] do + task rollback: :load_config do step = ENV["STEP"] ? ENV["STEP"].to_i : 1 ActiveRecord::Migrator.rollback(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) db_namespace["_dump"].invoke end # desc 'Pushes the schema to the next version (specify steps w/ STEP=n).' - task forward: [:environment, :load_config] do + task forward: :load_config do step = ENV["STEP"] ? ENV["STEP"].to_i : 1 ActiveRecord::Migrator.forward(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) db_namespace["_dump"].invoke @@ -146,12 +157,12 @@ db_namespace = namespace :db do task reset: [ "db:drop", "db:setup" ] # desc "Retrieves the charset for the current environment's database" - task charset: [:environment, :load_config] do + task charset: :load_config do puts ActiveRecord::Tasks::DatabaseTasks.charset_current end # desc "Retrieves the collation for the current environment's database" - task collation: [:environment, :load_config] do + task collation: :load_config do begin puts ActiveRecord::Tasks::DatabaseTasks.collation_current rescue NoMethodError @@ -160,12 +171,12 @@ db_namespace = namespace :db do end desc "Retrieves the current schema version number" - task version: [:environment, :load_config] do + task version: :load_config do puts "Current version: #{ActiveRecord::Migrator.current_version}" end # desc "Raises an error if there are pending migrations" - task abort_if_pending_migrations: [:environment, :load_config] do + task abort_if_pending_migrations: :load_config do pending_migrations = ActiveRecord::Migrator.open(ActiveRecord::Tasks::DatabaseTasks.migrations_paths).pending_migrations if pending_migrations.any? @@ -188,8 +199,8 @@ db_namespace = namespace :db do namespace :fixtures do desc "Loads fixtures into the current environment's database. Load specific fixtures using FIXTURES=x,y. Load from subdirectory in test/fixtures using FIXTURES_DIR=z. Specify an alternative path (eg. spec/fixtures) using FIXTURES_PATH=spec/fixtures." - task load: [:environment, :load_config] do - require_relative "../fixtures" + task load: :load_config do + require "active_record/fixtures" base_dir = ActiveRecord::Tasks::DatabaseTasks.fixtures_path @@ -210,8 +221,8 @@ db_namespace = namespace :db do end # desc "Search for a fixture given a LABEL or ID. Specify an alternative path (eg. spec/fixtures) using FIXTURES_PATH=spec/fixtures." - task identify: [:environment, :load_config] do - require_relative "../fixtures" + task identify: :load_config do + require "active_record/fixtures" label, id = ENV["LABEL"], ENV["ID"] raise "LABEL or ID required" if label.blank? && id.blank? @@ -236,8 +247,8 @@ db_namespace = namespace :db do namespace :schema do desc "Creates a db/schema.rb file that is portable against any DB supported by Active Record" - task dump: [:environment, :load_config] do - require_relative "../schema_dumper" + task dump: :load_config do + require "active_record/schema_dumper" filename = ENV["SCHEMA"] || File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, "schema.rb") File.open(filename, "w:utf-8") do |file| ActiveRecord::SchemaDumper.dump(ActiveRecord::Base.connection, file) @@ -246,7 +257,7 @@ db_namespace = namespace :db do end desc "Loads a schema.rb file into the database" - task load: [:environment, :load_config, :check_protected_environments] do + task load: [:load_config, :check_protected_environments] do ActiveRecord::Tasks::DatabaseTasks.load_schema_current(:ruby, ENV["SCHEMA"]) end @@ -256,14 +267,14 @@ db_namespace = namespace :db do namespace :cache do desc "Creates a db/schema_cache.yml file." - task dump: [:environment, :load_config] do + task dump: :load_config do conn = ActiveRecord::Base.connection filename = File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, "schema_cache.yml") ActiveRecord::Tasks::DatabaseTasks.dump_schema_cache(conn, filename) end desc "Clears a db/schema_cache.yml file." - task clear: [:environment, :load_config] do + task clear: :load_config do filename = File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, "schema_cache.yml") rm_f filename, verbose: false end @@ -273,7 +284,7 @@ db_namespace = namespace :db do namespace :structure do desc "Dumps the database structure to db/structure.sql. Specify another file with SCHEMA=db/my_structure.sql" - task dump: [:environment, :load_config] do + task dump: :load_config do filename = ENV["SCHEMA"] || File.join(ActiveRecord::Tasks::DatabaseTasks.db_dir, "structure.sql") current_config = ActiveRecord::Tasks::DatabaseTasks.current_config ActiveRecord::Tasks::DatabaseTasks.structure_dump(current_config, filename) @@ -288,7 +299,7 @@ db_namespace = namespace :db do end desc "Recreates the databases from the structure.sql file" - task load: [:environment, :load_config, :check_protected_environments] do + task load: [:load_config, :check_protected_environments] do ActiveRecord::Tasks::DatabaseTasks.load_schema_current(:sql, ENV["SCHEMA"]) end @@ -313,7 +324,7 @@ db_namespace = namespace :db do begin should_reconnect = ActiveRecord::Base.connection_pool.active_connection? ActiveRecord::Schema.verbose = false - ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :ruby, ENV["SCHEMA"] + ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :ruby, ENV["SCHEMA"], "test" ensure if should_reconnect ActiveRecord::Base.establish_connection(ActiveRecord::Base.configurations[ActiveRecord::Tasks::DatabaseTasks.env]) @@ -323,16 +334,16 @@ db_namespace = namespace :db do # desc "Recreate the test database from an existent structure.sql file" task load_structure: %w(db:test:purge) do - ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :sql, ENV["SCHEMA"] + ActiveRecord::Tasks::DatabaseTasks.load_schema ActiveRecord::Base.configurations["test"], :sql, ENV["SCHEMA"], "test" end # desc "Empty the test database" - task purge: %w(environment load_config check_protected_environments) do + task purge: %w(load_config check_protected_environments) do ActiveRecord::Tasks::DatabaseTasks.purge ActiveRecord::Base.configurations["test"] end # desc 'Load the test schema' - task prepare: %w(environment load_config) do + task prepare: :load_config do unless ActiveRecord::Base.configurations.blank? db_namespace["test:load"].invoke end diff --git a/activerecord/lib/active_record/railties/jdbcmysql_error.rb b/activerecord/lib/active_record/railties/jdbcmysql_error.rb deleted file mode 100644 index 72c75ddd52..0000000000 --- a/activerecord/lib/active_record/railties/jdbcmysql_error.rb +++ /dev/null @@ -1,18 +0,0 @@ -# frozen_string_literal: true - -#FIXME Remove if ArJdbcMysql will give. -module ArJdbcMySQL #:nodoc: - class Error < StandardError #:nodoc: - attr_accessor :error_number, :sql_state - - def initialize(msg) - super - @error_number = nil - @sql_state = nil - end - - # Mysql gem compatibility - alias_method :errno, :error_number - alias_method :error, :message - end -end diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 889e24dd1a..87bfd75bca 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -1,7 +1,6 @@ # frozen_string_literal: true require "active_support/core_ext/string/filters" -require "active_support/deprecation" require "concurrent/map" module ActiveRecord @@ -174,11 +173,6 @@ module ActiveRecord scope ? [scope] : [] end - def scope_chain - chain.map(&:scopes) - end - deprecate :scope_chain - def build_join_constraint(table, foreign_table) key = join_keys.key foreign_key = join_keys.foreign_key @@ -292,13 +286,17 @@ module ActiveRecord end def get_join_keys(association_klass) - JoinKeys.new(join_pk(association_klass), join_foreign_key) + JoinKeys.new(join_primary_key(association_klass), join_foreign_key) end def build_scope(table, predicate_builder = predicate_builder(table)) Relation.create(klass, table, predicate_builder) end + def join_primary_key(_) + foreign_key + end + def join_foreign_key active_record_primary_key end @@ -313,10 +311,6 @@ module ActiveRecord PredicateBuilder.new(TableMetadata.new(klass, table)) end - def join_pk(_) - foreign_key - end - def primary_key(klass) klass.primary_key || raise(UnknownPrimaryKey.new(klass)) end @@ -425,21 +419,13 @@ module ActiveRecord def initialize(name, scope, options, active_record) super - @automatic_inverse_of = nil @type = options[:as] && (options[:foreign_type] || "#{options[:as]}_type") - @foreign_type = options[:foreign_type] || "#{name}_type" + @foreign_type = options[:polymorphic] && (options[:foreign_type] || "#{name}_type") @constructable = calculate_constructable(macro, options) @association_scope_cache = Concurrent::Map.new if options[:class_name] && options[:class_name].class == Class - ActiveSupport::Deprecation.warn(<<-MSG.squish) - Passing a class to the `class_name` is deprecated and will raise - an ArgumentError in Rails 5.2. It eagerloads more classes than - necessary and potentially creates circular dependencies. - - Please pass the class name as a string: - `#{macro} :#{name}, class_name: '#{options[:class_name]}'` - MSG + raise ArgumentError, "A class was passed to `:class_name` but we are expecting a string." end end @@ -609,12 +595,14 @@ module ActiveRecord # If it cannot find a suitable inverse association name, it returns # +nil+. def inverse_name - options.fetch(:inverse_of) do - @automatic_inverse_of ||= automatic_inverse_of + unless defined?(@inverse_name) + @inverse_name = options.fetch(:inverse_of) { automatic_inverse_of } end + + @inverse_name end - # returns either false or the inverse association name that it finds. + # returns either +nil+ or the inverse association name that it finds. def automatic_inverse_of if can_find_inverse_of_automatically?(self) inverse_name = ActiveSupport::Inflector.underscore(options[:as] || active_record.name.demodulize).to_sym @@ -631,8 +619,6 @@ module ActiveRecord return inverse_name end end - - false end # Checks if the inverse reflection that is returned from the @@ -736,6 +722,10 @@ module ActiveRecord end end + def join_primary_key(klass) + polymorphic? ? association_primary_key(klass) : association_primary_key + end + def join_foreign_key foreign_key end @@ -745,10 +735,6 @@ module ActiveRecord def calculate_constructable(macro, options) !polymorphic? end - - def join_pk(klass) - polymorphic? ? association_primary_key(klass) : association_primary_key - end end class HasAndBelongsToManyReflection < AssociationReflection # :nodoc: @@ -853,10 +839,6 @@ module ActiveRecord source_reflection.join_scopes(table, predicate_builder) + super end - def source_type_scope - through_reflection.klass.where(foreign_type => options[:source_type]) - end - def has_scope? scope || options[:source_type] || source_reflection.has_scope? || @@ -1016,29 +998,24 @@ module ActiveRecord end class PolymorphicReflection < AbstractReflection # :nodoc: - delegate :klass, :scope, :plural_name, :type, :get_join_keys, to: :@reflection + delegate :klass, :scope, :plural_name, :type, :get_join_keys, :scope_for, to: :@reflection def initialize(reflection, previous_reflection) @reflection = reflection @previous_reflection = previous_reflection end - def scopes - scopes = @previous_reflection.scopes - scopes << @previous_reflection.source_type_scope - end - def join_scopes(table, predicate_builder) # :nodoc: scopes = @previous_reflection.join_scopes(table, predicate_builder) + super - scopes << @previous_reflection.source_type_scope + scopes << build_scope(table, predicate_builder).instance_exec(nil, &source_type_scope) end def constraints - @reflection.constraints + [source_type_info] + @reflection.constraints + [source_type_scope] end private - def source_type_info + def source_type_scope type = @previous_reflection.foreign_type source_type = @previous_reflection.options[:source_type] lambda { |object| where(type => source_type) } diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 42a9d8492b..081ef5771f 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -36,67 +36,6 @@ module ActiveRecord reset end - def insert(values) # :nodoc: - primary_key_value = nil - - if primary_key && Hash === values - primary_key_value = values[values.keys.find { |k| - k.name == primary_key - }] - - if !primary_key_value && klass.prefetch_primary_key? - primary_key_value = klass.next_sequence_value - values[arel_attribute(klass.primary_key)] = primary_key_value - end - end - - im = arel.create_insert - im.into @table - - substitutes = substitute_values values - - if values.empty? # empty insert - im.values = Arel.sql(connection.empty_insert_statement_value) - else - im.insert substitutes - end - - @klass.connection.insert( - im, - "SQL", - primary_key || false, - primary_key_value, - nil, - ) - end - - def _update_record(values, id, id_was) # :nodoc: - substitutes = substitute_values values - - scope = @klass.unscoped - - if @klass.finder_needs_type_condition? - scope.unscope!(where: @klass.inheritance_column) - end - - relation = scope.where(@klass.primary_key => (id_was || id)) - um = relation - .arel - .compile_update(substitutes, @klass.primary_key) - - @klass.connection.update( - um, - "SQL", - ) - end - - def substitute_values(values) # :nodoc: - values.map do |arel_attr, value| - bind = predicate_builder.build_bind_attribute(arel_attr.name, value) - [arel_attr, bind] - end - end - def arel_attribute(name) # :nodoc: klass.arel_attribute(name, table) end @@ -243,9 +182,10 @@ module ActiveRecord end # Converts relation objects to Array. - def to_a + def to_ary records.dup end + alias to_a to_ary def records # :nodoc: load @@ -359,6 +299,11 @@ module ActiveRecord def update_all(updates) raise ArgumentError, "Empty list of attributes to change" if updates.blank? + if eager_loading? + relation = apply_join_dependency + return relation.update_all(updates) + end + stmt = Arel::UpdateManager.new stmt.set Arel.sql(@klass.send(:sanitize_sql_for_assignment, updates)) @@ -373,51 +318,7 @@ module ActiveRecord stmt.wheres = arel.constraints end - @klass.connection.update stmt, "SQL" - end - - # Updates an object (or multiple objects) and saves it to the database, if validations pass. - # The resulting object is returned whether the object was saved successfully to the database or not. - # - # ==== Parameters - # - # * +id+ - This should be the id or an array of ids to be updated. - # * +attributes+ - This should be a hash of attributes or an array of hashes. - # - # ==== Examples - # - # # Updates one record - # Person.update(15, user_name: 'Samuel', group: 'expert') - # - # # Updates multiple records - # people = { 1 => { "first_name" => "David" }, 2 => { "first_name" => "Jeremy" } } - # Person.update(people.keys, people.values) - # - # # Updates multiple records from the result of a relation - # people = Person.where(group: 'expert') - # people.update(group: 'masters') - # - # Note: Updating a large number of records will run an - # UPDATE query for each record, which may cause a performance - # issue. When running callbacks is not needed for each record update, - # it is preferred to use #update_all for updating all records - # in a single query. - def update(id = :all, attributes) - if id.is_a?(Array) - id.map.with_index { |one_id, idx| update(one_id, attributes[idx]) } - elsif id == :all - records.each { |record| record.update(attributes) } - else - if ActiveRecord::Base === id - raise ArgumentError, <<-MSG.squish - You are passing an instance of ActiveRecord::Base to `update`. - Please pass the id of the object by calling `.id`. - MSG - end - object = find(id) - object.update(attributes) - object - end + @klass.connection.update stmt, "#{@klass} Update All" end # Destroys the records by instantiating each @@ -440,33 +341,6 @@ module ActiveRecord records.each(&:destroy).tap { reset } end - # Destroy an object (or multiple objects) that has the given id. The object is instantiated first, - # therefore all callbacks and filters are fired off before the object is deleted. This method is - # less efficient than #delete but allows cleanup methods and other actions to be run. - # - # This essentially finds the object (or multiple objects) with the given id, creates a new object - # from the attributes, and then calls destroy on it. - # - # ==== Parameters - # - # * +id+ - Can be either an Integer or an Array of Integers. - # - # ==== Examples - # - # # Destroy a single object - # Todo.destroy(1) - # - # # Destroy multiple objects - # todos = [1,2,3] - # Todo.destroy(todos) - def destroy(id) - if id.is_a?(Array) - id.map { |one_id| destroy(one_id) } - else - find(id).destroy - end - end - # Deletes the records without instantiating the records # first, and hence not calling the {#destroy}[rdoc-ref:Persistence#destroy] # method nor invoking callbacks. @@ -494,6 +368,11 @@ module ActiveRecord raise ActiveRecordError.new("delete_all doesn't support #{invalid_methods.join(', ')}") end + if eager_loading? + relation = apply_join_dependency + return relation.delete_all + end + stmt = Arel::DeleteManager.new stmt.from(table) @@ -503,35 +382,12 @@ module ActiveRecord stmt.wheres = arel.constraints end - affected = @klass.connection.delete(stmt, "SQL") + affected = @klass.connection.delete(stmt, "#{@klass} Destroy") reset affected end - # Deletes the row with a primary key matching the +id+ argument, using a - # SQL +DELETE+ statement, and returns the number of rows deleted. Active - # Record objects are not instantiated, so the object's callbacks are not - # executed, including any <tt>:dependent</tt> association options. - # - # You can delete multiple rows at once by passing an Array of <tt>id</tt>s. - # - # Note: Although it is often much faster than the alternative, - # #destroy, skipping callbacks might bypass business logic in - # your application that ensures referential integrity or performs other - # essential jobs. - # - # ==== Examples - # - # # Delete a single row - # Todo.delete(1) - # - # # Delete multiple rows - # Todo.delete([2,3,4]) - def delete(id_or_array) - where(primary_key => id_or_array).delete_all - end - # Causes the records to be loaded from the database if they have not # been loaded already. You can use this if for some reason you need # to explicitly load some records before actually using them. The @@ -645,6 +501,11 @@ module ActiveRecord limit_value || offset_value end + def alias_tracker(joins = [], aliases = nil) # :nodoc: + joins += [aliases] if aliases + ActiveRecord::Associations::AliasTracker.create(connection, table.name, joins) + end + protected def load_records(records) diff --git a/activerecord/lib/active_record/relation/batches.rb b/activerecord/lib/active_record/relation/batches.rb index 356ad0dcd6..561869017a 100644 --- a/activerecord/lib/active_record/relation/batches.rb +++ b/activerecord/lib/active_record/relation/batches.rb @@ -1,6 +1,6 @@ # frozen_string_literal: true -require_relative "batches/batch_enumerator" +require "active_record/relation/batches/batch_enumerator" module ActiveRecord module Batches diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index 42d43224fa..d49472fc70 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -130,7 +130,7 @@ module ActiveRecord # end def calculate(operation, column_name) if has_include?(column_name) - relation = construct_relation_for_association_calculations + relation = apply_join_dependency relation.distinct! if operation.to_s.downcase == "count" relation.calculate(operation, column_name) @@ -180,8 +180,10 @@ module ActiveRecord end if has_include?(column_names.first) - construct_relation_for_association_calculations.pluck(*column_names) + relation = apply_join_dependency + relation.pluck(*column_names) else + enforce_raw_sql_whitelist(column_names) relation = spawn relation.select_values = column_names.map { |cn| @klass.has_attribute?(cn) || @klass.attribute_alias?(cn) ? arel_attribute(cn) : cn @@ -215,7 +217,7 @@ module ActiveRecord if operation == "count" column_name ||= select_for_count if column_name == :all - if distinct && !(has_limit_or_offset? && order_values.any?) + if distinct && (group_values.any? || !(has_limit_or_offset? && order_values.any?)) column_name = primary_key end elsif column_name =~ /\s*DISTINCT[\s(]+/i @@ -391,7 +393,7 @@ module ActiveRecord def build_count_subquery(relation, column_name, distinct) relation.select_values = [ if column_name == :all - distinct ? table[Arel.star] : Arel.sql("1") + distinct ? table[Arel.star] : Arel.sql(FinderMethods::ONE_AS_ONE) else column_alias = Arel.sql("count_column") aggregate_column(column_name).as(column_alias) diff --git a/activerecord/lib/active_record/relation/delegation.rb b/activerecord/lib/active_record/relation/delegation.rb index 48af777b69..4863befec8 100644 --- a/activerecord/lib/active_record/relation/delegation.rb +++ b/activerecord/lib/active_record/relation/delegation.rb @@ -38,7 +38,7 @@ module ActiveRecord # may vary depending on the klass of a relation, so we create a subclass of Relation # for each different klass, and the delegations are compiled into that subclass only. - delegate :to_xml, :encode_with, :length, :each, :uniq, :to_ary, :join, + delegate :to_xml, :encode_with, :length, :each, :uniq, :join, :[], :&, :|, :+, :-, :sample, :reverse, :rotate, :compact, :in_groups, :in_groups_of, :to_sentence, :to_formatted_s, :as_json, :shuffle, :split, :slice, :index, :rindex, to: :records diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index c92d5a52f4..ff06ecbee1 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -18,9 +18,10 @@ module ActiveRecord # Person.find([1]) # returns an array for the object with ID = 1 # Person.where("administrator = 1").order("created_on DESC").find(1) # - # NOTE: The returned records may not be in the same order as the ids you - # provide since database rows are unordered. You will need to provide an explicit QueryMethods#order - # option if you want the results to be sorted. + # NOTE: The returned records are in the same order as the ids you provide. + # If you want the results to be sorted by database, you can use ActiveRecord::QueryMethods#where + # method and provide an explicit ActiveRecord::QueryMethods#order option. + # But ActiveRecord::QueryMethods#where method doesn't raise ActiveRecord::RecordNotFound. # # ==== Find with lock # @@ -88,7 +89,7 @@ module ActiveRecord where(arg, *args).take! rescue ::RangeError raise RecordNotFound.new("Couldn't find #{@klass.name} with an out of range value", - @klass.name) + @klass.name, @klass.primary_key) end # Gives a record (or N records if a parameter is supplied) without any implied @@ -284,7 +285,7 @@ module ActiveRecord # * Hash - Finds the record that matches these +find+-style conditions # (such as <tt>{name: 'David'}</tt>). # * +false+ - Returns always +false+. - # * No args - Returns +false+ if the table is empty, +true+ otherwise. + # * No args - Returns +false+ if the relation is empty, +true+ otherwise. # # For more information about specifying conditions as a hash or array, # see the Conditions section in the introduction to ActiveRecord::Base. @@ -300,6 +301,7 @@ module ActiveRecord # Person.exists?(name: 'David') # Person.exists?(false) # Person.exists? + # Person.where(name: 'Spartacus', rating: 4).exists? def exists?(conditions = :none) if Base === conditions raise ArgumentError, <<-MSG.squish @@ -310,12 +312,12 @@ module ActiveRecord return false if !conditions || limit_value == 0 - relation = self unless eager_loading? - relation ||= apply_join_dependency(self, construct_join_dependency(eager_loading: false)) - - return false if ActiveRecord::NullRelation === relation + if eager_loading? + relation = apply_join_dependency(construct_join_dependency(eager_loading: false)) + return relation.exists?(conditions) + end - relation = construct_relation_for_exists(relation, conditions) + relation = construct_relation_for_exists(conditions) skip_query_cache_if_necessary { connection.select_value(relation.arel, "#{name} Exists") } ? true : false rescue ::RangeError @@ -338,7 +340,7 @@ module ActiveRecord if ids.nil? error = "Couldn't find #{name}".dup error << " with#{conditions}" if conditions - raise RecordNotFound.new(error, name) + raise RecordNotFound.new(error, name, key) elsif Array(ids).size == 1 error = "Couldn't find #{name} with '#{key}'=#{ids}#{conditions}" raise RecordNotFound.new(error, name, key, ids) @@ -346,7 +348,7 @@ module ActiveRecord error = "Couldn't find all #{name.pluralize} with '#{key}': ".dup error << "(#{ids.join(", ")})#{conditions} (found #{result_size} results, but was looking for #{expected_size})." error << " Couldn't find #{name.pluralize(not_found_ids.size)} with #{key.to_s.pluralize(not_found_ids.size)} #{not_found_ids.join(', ')}." if not_found_ids - raise RecordNotFound.new(error, name, primary_key, ids) + raise RecordNotFound.new(error, name, key, ids) end end @@ -366,17 +368,16 @@ module ActiveRecord # preexisting join in joins_values to categorizations (by way of # the `has_many :through` for categories). # - join_dependency = construct_join_dependency(joins_values) + join_dependency = construct_join_dependency - aliases = join_dependency.aliases - relation = select aliases.columns - relation = apply_join_dependency(relation, join_dependency) + relation = apply_join_dependency(join_dependency) + relation._select!(join_dependency.aliases.columns) yield relation, join_dependency end - def construct_relation_for_exists(relation, conditions) - relation = relation.except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1) + def construct_relation_for_exists(conditions) + relation = except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1) case conditions when Array, Hash @@ -388,17 +389,15 @@ module ActiveRecord relation end - def construct_join_dependency(joins = [], eager_loading: true) + def construct_join_dependency(eager_loading: true) including = eager_load_values + includes_values - ActiveRecord::Associations::JoinDependency.new(klass, table, including, joins, eager_loading: eager_loading) - end - - def construct_relation_for_association_calculations - apply_join_dependency(self, construct_join_dependency(joins_values)) + ActiveRecord::Associations::JoinDependency.new( + klass, table, including, alias_tracker(joins_values), eager_loading: eager_loading + ) end - def apply_join_dependency(relation, join_dependency) - relation = relation.except(:includes, :eager_load, :preload).joins!(join_dependency) + def apply_join_dependency(join_dependency = construct_join_dependency) + relation = except(:includes, :eager_load, :preload).joins!(join_dependency) if using_limitable_reflections?(join_dependency.reflections) relation @@ -435,9 +434,12 @@ module ActiveRecord ids = ids.flatten.compact.uniq + model_name = @klass.name + case ids.size when 0 - raise RecordNotFound, "Couldn't find #{@klass.name} without an ID" + error_message = "Couldn't find #{model_name} without an ID" + raise RecordNotFound.new(error_message, model_name, primary_key) when 1 result = find_one(ids.first) expects_array ? [ result ] : result @@ -445,7 +447,8 @@ module ActiveRecord find_some(ids) end rescue ::RangeError - raise RecordNotFound, "Couldn't find #{@klass.name} with an out of range ID" + error_message = "Couldn't find #{model_name} with an out of range ID" + raise RecordNotFound.new(error_message, model_name, primary_key, ids) end def find_one(id) diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index 03824ffff9..b736b21525 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -112,22 +112,20 @@ module ActiveRecord if other.klass == relation.klass relation.joins!(*other.joins_values) else - joins_dependency, rest = other.joins_values.partition do |join| + alias_tracker = nil + joins_dependency = other.joins_values.map do |join| case join when Hash, Symbol, Array - true + alias_tracker ||= other.alias_tracker + ActiveRecord::Associations::JoinDependency.new( + other.klass, other.table, join, alias_tracker + ) else - false + join end end - join_dependency = ActiveRecord::Associations::JoinDependency.new( - other.klass, other.table, joins_dependency, [] - ) - - relation.joins! rest - - @relation = relation.joins join_dependency + relation.joins!(*joins_dependency) end end diff --git a/activerecord/lib/active_record/relation/predicate_builder.rb b/activerecord/lib/active_record/relation/predicate_builder.rb index 5c42414072..885c26d7aa 100644 --- a/activerecord/lib/active_record/relation/predicate_builder.rb +++ b/activerecord/lib/active_record/relation/predicate_builder.rb @@ -13,6 +13,7 @@ module ActiveRecord register_handler(Range, RangeHandler.new(self)) register_handler(Relation, RelationHandler.new) register_handler(Array, ArrayHandler.new(self)) + register_handler(Set, ArrayHandler.new(self)) end def build_from_hash(attributes) @@ -123,11 +124,11 @@ module ActiveRecord end end -require_relative "predicate_builder/array_handler" -require_relative "predicate_builder/base_handler" -require_relative "predicate_builder/basic_object_handler" -require_relative "predicate_builder/range_handler" -require_relative "predicate_builder/relation_handler" +require "active_record/relation/predicate_builder/array_handler" +require "active_record/relation/predicate_builder/base_handler" +require "active_record/relation/predicate_builder/basic_object_handler" +require "active_record/relation/predicate_builder/range_handler" +require "active_record/relation/predicate_builder/relation_handler" -require_relative "predicate_builder/association_query_value" -require_relative "predicate_builder/polymorphic_array_value" +require "active_record/relation/predicate_builder/association_query_value" +require "active_record/relation/predicate_builder/polymorphic_array_value" diff --git a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb index f51ea4fde0..c8bbfa5051 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb @@ -4,6 +4,10 @@ module ActiveRecord class PredicateBuilder class RelationHandler # :nodoc: def call(attribute, value) + if value.eager_loading? + value = value.send(:apply_join_dependency) + end + if value.select_values.empty? value = value.select(value.arel_attribute(value.klass.primary_key)) end diff --git a/activerecord/lib/active_record/relation/query_attribute.rb b/activerecord/lib/active_record/relation/query_attribute.rb index 5a9a7fd432..3532f28858 100644 --- a/activerecord/lib/active_record/relation/query_attribute.rb +++ b/activerecord/lib/active_record/relation/query_attribute.rb @@ -1,10 +1,10 @@ # frozen_string_literal: true -require_relative "../attribute" +require "active_model/attribute" module ActiveRecord class Relation - class QueryAttribute < Attribute # :nodoc: + class QueryAttribute < ActiveModel::Attribute # :nodoc: def type_cast(value) value end diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index c88603fde2..749223422f 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -1,9 +1,9 @@ # frozen_string_literal: true -require_relative "from_clause" -require_relative "query_attribute" -require_relative "where_clause" -require_relative "where_clause_factory" +require "active_record/relation/from_clause" +require "active_record/relation/query_attribute" +require "active_record/relation/where_clause" +require "active_record/relation/where_clause_factory" require "active_model/forbidden_attributes_protection" module ActiveRecord @@ -295,6 +295,7 @@ module ActiveRecord spawn.order!(*args) end + # Same as #order but operates on relation in-place instead of copying. def order!(*args) # :nodoc: preprocess_order_args(args) @@ -316,6 +317,7 @@ module ActiveRecord spawn.reorder!(*args) end + # Same as #reorder but operates on relation in-place instead of copying. def reorder!(*args) # :nodoc: preprocess_order_args(args) @@ -441,7 +443,7 @@ module ActiveRecord # => SELECT "users".* FROM "users" LEFT OUTER JOIN "posts" ON "posts"."user_id" = "users"."id" # def left_outer_joins(*args) - check_if_method_has_arguments!(:left_outer_joins, args) + check_if_method_has_arguments!(__callee__, args) args.compact! args.flatten! @@ -898,8 +900,8 @@ module ActiveRecord end # Returns the Arel object associated with the relation. - def arel # :nodoc: - @arel ||= build_arel + def arel(aliases = nil) # :nodoc: + @arel ||= build_arel(aliases) end protected @@ -921,16 +923,16 @@ module ActiveRecord raise ImmutableRelation if defined?(@arel) && @arel end - def build_arel + def build_arel(aliases) arel = Arel::SelectManager.new(table) - build_joins(arel, joins_values.flatten) unless joins_values.empty? - build_left_outer_joins(arel, left_outer_joins_values.flatten) unless left_outer_joins_values.empty? + aliases = build_joins(arel, joins_values.flatten, aliases) unless joins_values.empty? + build_left_outer_joins(arel, left_outer_joins_values.flatten, aliases) unless left_outer_joins_values.empty? arel.where(where_clause.ast) unless where_clause.empty? arel.having(having_clause.ast) unless having_clause.empty? if limit_value - limit_attribute = Attribute.with_cast_value( + limit_attribute = ActiveModel::Attribute.with_cast_value( "LIMIT".freeze, connection.sanitize_limit(limit_value), Type.default_value, @@ -938,7 +940,7 @@ module ActiveRecord arel.take(Arel::Nodes::BindParam.new(limit_attribute)) end if offset_value - offset_attribute = Attribute.with_cast_value( + offset_attribute = ActiveModel::Attribute.with_cast_value( "OFFSET".freeze, offset_value.to_i, Type.default_value, @@ -963,6 +965,9 @@ module ActiveRecord name = from_clause.name case opts when Relation + if opts.eager_loading? + opts = opts.send(:apply_join_dependency) + end name ||= "subquery" opts.arel.as(name.to_s) else @@ -970,7 +975,7 @@ module ActiveRecord end end - def build_left_outer_joins(manager, outer_joins) + def build_left_outer_joins(manager, outer_joins, aliases) buckets = outer_joins.group_by do |join| case join when Hash, Symbol, Array @@ -980,10 +985,10 @@ module ActiveRecord end end - build_join_query(manager, buckets, Arel::Nodes::OuterJoin) + build_join_query(manager, buckets, Arel::Nodes::OuterJoin, aliases) end - def build_joins(manager, joins) + def build_joins(manager, joins, aliases) buckets = joins.group_by do |join| case join when String @@ -999,10 +1004,10 @@ module ActiveRecord end end - build_join_query(manager, buckets, Arel::Nodes::InnerJoin) + build_join_query(manager, buckets, Arel::Nodes::InnerJoin, aliases) end - def build_join_query(manager, buckets, join_type) + def build_join_query(manager, buckets, join_type, aliases) buckets.default = [] association_joins = buckets[:association_join] @@ -1011,9 +1016,10 @@ module ActiveRecord string_joins = buckets[:string_join].map(&:strip).uniq join_list = join_nodes + convert_join_strings_to_ast(manager, string_joins) + alias_tracker = alias_tracker(join_list, aliases) join_dependency = ActiveRecord::Associations::JoinDependency.new( - klass, table, association_joins, join_list + klass, table, association_joins, alias_tracker ) joins = join_dependency.join_constraints(stashed_association_joins, join_type) @@ -1021,7 +1027,7 @@ module ActiveRecord manager.join_sources.concat(join_list) - manager + alias_tracker.aliases end def convert_join_strings_to_ast(table, joins) @@ -1034,6 +1040,8 @@ module ActiveRecord def build_select(arel) if select_values.any? arel.project(*arel_columns(select_values.uniq)) + elsif @klass.ignored_columns.any? + arel.project(*arel_columns(@klass.column_names)) else arel.project(table[Arel.star]) end @@ -1070,7 +1078,7 @@ module ActiveRecord end o.split(",").map! do |s| s.strip! - s.gsub!(/\sasc\Z/i, " DESC") || s.gsub!(/\sdesc\Z/i, " ASC") || s.concat(" DESC") + s.gsub!(/\sasc\Z/i, " DESC") || s.gsub!(/\sdesc\Z/i, " ASC") || (s << " DESC") end else o @@ -1079,6 +1087,10 @@ module ActiveRecord end def does_not_support_reverse?(order) + # Account for String subclasses like Arel::Nodes::SqlLiteral that + # override methods like #count. + order = String.new(order) unless order.instance_of?(String) + # Uses SQL function with multiple arguments. (order.include?(",") && order.split(",").find { |section| section.count("(") != section.count(")") }) || # Uses "nulls first" like construction. @@ -1112,6 +1124,12 @@ module ActiveRecord klass.send(:sanitize_sql_for_order, arg) end order_args.flatten! + + @klass.enforce_raw_sql_whitelist( + order_args.flat_map { |a| a.is_a?(Hash) ? a.keys : a }, + whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST + ) + validate_order_args(order_args) references = order_args.grep(String) diff --git a/activerecord/lib/active_record/relation/spawn_methods.rb b/activerecord/lib/active_record/relation/spawn_methods.rb index 424894f835..617d8de8b2 100644 --- a/activerecord/lib/active_record/relation/spawn_methods.rb +++ b/activerecord/lib/active_record/relation/spawn_methods.rb @@ -2,7 +2,7 @@ require "active_support/core_ext/hash/except" require "active_support/core_ext/hash/slice" -require_relative "merger" +require "active_record/relation/merger" module ActiveRecord module SpawnMethods diff --git a/activerecord/lib/active_record/relation/where_clause.rb b/activerecord/lib/active_record/relation/where_clause.rb index 752bb38481..a502713e56 100644 --- a/activerecord/lib/active_record/relation/where_clause.rb +++ b/activerecord/lib/active_record/relation/where_clause.rb @@ -47,7 +47,7 @@ module ActiveRecord end def to_h(table_name = nil) - equalities = predicates.grep(Arel::Nodes::Equality) + equalities = equalities(predicates) if table_name equalities = equalities.select do |node| node.left.relation.name == table_name @@ -90,6 +90,20 @@ module ActiveRecord end private + def equalities(predicates) + equalities = [] + + predicates.each do |node| + case node + when Arel::Nodes::Equality + equalities << node + when Arel::Nodes::And + equalities.concat equalities(node.children) + end + end + + equalities + end def predicates_unreferenced_by(other) predicates.reject do |n| @@ -121,7 +135,7 @@ module ActiveRecord end def except_predicates(columns) - self.predicates.reject do |node| + predicates.reject do |node| case node when Arel::Nodes::Between, Arel::Nodes::In, Arel::Nodes::NotIn, Arel::Nodes::Equality, Arel::Nodes::NotEqual, Arel::Nodes::LessThan, Arel::Nodes::LessThanOrEqual, Arel::Nodes::GreaterThan, Arel::Nodes::GreaterThanOrEqual subrelation = (node.left.kind_of?(Arel::Attributes::Attribute) ? node.left : node.right) diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index 91a4f1fad6..21f8bc7cb2 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -30,8 +30,6 @@ module ActiveRecord end end alias :sanitize_sql :sanitize_sql_for_conditions - alias :sanitize_conditions :sanitize_sql - deprecate sanitize_conditions: :sanitize_sql # Accepts an array, hash, or string of SQL conditions and sanitizes # them into a valid SQL fragment for a SET clause. @@ -65,7 +63,17 @@ module ActiveRecord # # => "id ASC" def sanitize_sql_for_order(condition) # :doc: if condition.is_a?(Array) && condition.first.to_s.include?("?") - sanitize_sql_array(condition) + enforce_raw_sql_whitelist([condition.first], + whitelist: AttributeMethods::ClassMethods::COLUMN_NAME_ORDER_WHITELIST + ) + + # Ensure we aren't dealing with a subclass of String that might + # override methods we use (eg. Arel::Nodes::SqlLiteral). + if condition.first.kind_of?(String) && !condition.first.instance_of?(String) + condition = [String.new(condition.first), *condition[1..-1]] + end + + Arel.sql(sanitize_sql_array(condition)) else condition end @@ -112,7 +120,8 @@ module ActiveRecord def sanitize_sql_hash_for_assignment(attrs, table) # :doc: c = connection attrs.map do |attr, value| - value = type_for_attribute(attr.to_s).serialize(value) + type = type_for_attribute(attr.to_s) + value = type.serialize(type.cast(value)) "#{c.quote_table_name_for_assignment(table, attr)} = #{c.quote(value)}" end.join(", ") end @@ -207,10 +216,5 @@ module ActiveRecord end end end - - def quoted_id # :nodoc: - self.class.connection.quote(@attributes[self.class.primary_key].value_for_database) - end - deprecate :quoted_id end end diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index 8d0311fabd..16ccba6b6c 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -82,16 +82,8 @@ HEADER stream.puts "end" end + # extensions are only supported by PostgreSQL def extensions(stream) - return unless @connection.supports_extensions? - extensions = @connection.extensions - if extensions.any? - stream.puts " # These are extensions that must be enabled in order to support this database" - extensions.sort.each do |extension| - stream.puts " enable_extension #{extension.inspect}" - end - stream.puts - end end def tables(stream) @@ -192,8 +184,9 @@ HEADER "name: #{index.name.inspect}", ] index_parts << "unique: true" if index.unique - index_parts << "length: { #{format_options(index.lengths)} }" if index.lengths.present? - index_parts << "order: { #{format_options(index.orders)} }" if index.orders.present? + index_parts << "length: #{format_index_parts(index.lengths)}" if index.lengths.present? + index_parts << "order: #{format_index_parts(index.orders)}" if index.orders.present? + index_parts << "opclass: #{format_index_parts(index.opclasses)}" if index.opclasses.present? index_parts << "where: #{index.where.inspect}" if index.where index_parts << "using: #{index.using.inspect}" if !@connection.default_index_type?(index) index_parts << "type: #{index.type.inspect}" if index.type @@ -239,6 +232,14 @@ HEADER options.map { |key, value| "#{key}: #{value.inspect}" }.join(", ") end + def format_index_parts(options) + if options.is_a?(Hash) + "{ #{format_options(options)} }" + else + options.inspect + end + end + def remove_prefix_and_suffix(table) prefix = Regexp.escape(@options[:table_name_prefix].to_s) suffix = Regexp.escape(@options[:table_name_suffix].to_s) diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb index 339a5334a8..f2d8b038fa 100644 --- a/activerecord/lib/active_record/schema_migration.rb +++ b/activerecord/lib/active_record/schema_migration.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true -require_relative "scoping/default" -require_relative "scoping/named" +require "active_record/scoping/default" +require "active_record/scoping/named" module ActiveRecord # This class is used to create a table that keeps track of which migrations diff --git a/activerecord/lib/active_record/scoping.rb b/activerecord/lib/active_record/scoping.rb index da585a9562..01ac56570a 100644 --- a/activerecord/lib/active_record/scoping.rb +++ b/activerecord/lib/active_record/scoping.rb @@ -11,23 +11,23 @@ module ActiveRecord include Named end - module ClassMethods - def current_scope(skip_inherited_scope = false) # :nodoc: + module ClassMethods # :nodoc: + def current_scope(skip_inherited_scope = false) ScopeRegistry.value_for(:current_scope, self, skip_inherited_scope) end - def current_scope=(scope) #:nodoc: + def current_scope=(scope) ScopeRegistry.set_value_for(:current_scope, self, scope) end # Collects attributes from scopes that should be applied when creating # an AR instance for the particular class this is called on. - def scope_attributes # :nodoc: + def scope_attributes all.scope_for_create end # Are there attributes associated with this scope? - def scope_attributes? # :nodoc: + def scope_attributes? current_scope end end diff --git a/activerecord/lib/active_record/scoping/default.rb b/activerecord/lib/active_record/scoping/default.rb index 86ae374318..8c612df27a 100644 --- a/activerecord/lib/active_record/scoping/default.rb +++ b/activerecord/lib/active_record/scoping/default.rb @@ -111,7 +111,7 @@ module ActiveRecord # The user has defined their own default scope method, so call that evaluate_default_scope do if scope = default_scope - (base_rel ||= relation).merge(scope) + (base_rel ||= relation).merge!(scope) end end elsif default_scopes.any? @@ -119,7 +119,7 @@ module ActiveRecord evaluate_default_scope do default_scopes.inject(base_rel) do |default_scope, scope| scope = scope.respond_to?(:to_proc) ? scope : scope.method(:call) - default_scope.merge(base_rel.instance_exec(&scope)) + default_scope.merge!(base_rel.instance_exec(&scope)) end end end diff --git a/activerecord/lib/active_record/scoping/named.rb b/activerecord/lib/active_record/scoping/named.rb index 6fa096c1fe..752655aa05 100644 --- a/activerecord/lib/active_record/scoping/named.rb +++ b/activerecord/lib/active_record/scoping/named.rb @@ -24,8 +24,14 @@ module ActiveRecord # You can define a scope that applies to all finders using # {default_scope}[rdoc-ref:Scoping::Default::ClassMethods#default_scope]. def all + current_scope = self.current_scope + if current_scope - current_scope.clone + if self == current_scope.klass + current_scope.clone + else + relation.merge!(current_scope) + end else default_scoped end @@ -165,6 +171,12 @@ module ActiveRecord "a class method with the same name." end + if method_defined_within?(name, Relation) + raise ArgumentError, "You tried to define a scope named \"#{name}\" " \ + "on the model \"#{self.name}\", but ActiveRecord::Relation already defined " \ + "an instance method with the same name." + end + valid_scope_name?(name) extension = Module.new(&block) if block diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index 0f3f84ca08..4657e51e6d 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -164,13 +164,12 @@ module ActiveRecord end def migrate - raise "Empty VERSION provided" if ENV["VERSION"] && ENV["VERSION"].empty? + check_target_version verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] != "false" : true - version = ENV["VERSION"] ? ENV["VERSION"].to_i : nil scope = ENV["SCOPE"] verbose_was, Migration.verbose = Migration.verbose, verbose - Migrator.migrate(migrations_paths, version) do |migration| + Migrator.migrate(migrations_paths, target_version) do |migration| scope.blank? || scope == migration.scope end ActiveRecord::Base.clear_cache! @@ -178,6 +177,16 @@ module ActiveRecord Migration.verbose = verbose_was end + def check_target_version + if target_version && !(Migration::MigrationFilenameRegexp.match?(ENV["VERSION"]) || /\A\d+\z/.match?(ENV["VERSION"])) + raise "Invalid format of target version: `VERSION=#{ENV['VERSION']}`" + end + end + + def target_version + ENV["VERSION"].to_i if ENV["VERSION"] && !ENV["VERSION"].empty? + end + def charset_current(environment = env) charset ActiveRecord::Base.configurations[environment] end @@ -225,22 +234,22 @@ module ActiveRecord class_for_adapter(configuration["adapter"]).new(*arguments).structure_load(filename, structure_load_flags) end - def load_schema(configuration, format = ActiveRecord::Base.schema_format, file = nil) # :nodoc: + def load_schema(configuration, format = ActiveRecord::Base.schema_format, file = nil, environment = env) # :nodoc: file ||= schema_file(format) + check_schema_file(file) + ActiveRecord::Base.establish_connection(configuration) + case format when :ruby - check_schema_file(file) - ActiveRecord::Base.establish_connection(configuration) load(file) when :sql - check_schema_file(file) structure_load(configuration, file) else raise ArgumentError, "unknown format #{format.inspect}" end ActiveRecord::InternalMetadata.create_table - ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment + ActiveRecord::InternalMetadata[:environment] = environment end def schema_file(format = ActiveRecord::Base.schema_format) @@ -253,8 +262,8 @@ module ActiveRecord end def load_schema_current(format = ActiveRecord::Base.schema_format, file = nil, environment = env) - each_current_configuration(environment) { |configuration| - load_schema configuration, format, file + each_current_configuration(environment) { |configuration, configuration_environment| + load_schema configuration, format, file, configuration_environment } ActiveRecord::Base.establish_connection(environment.to_sym) end @@ -301,9 +310,10 @@ module ActiveRecord environments = [environment] environments << "test" if environment == "development" - configurations = ActiveRecord::Base.configurations.values_at(*environments) - configurations.compact.each do |configuration| - yield configuration unless configuration["database"].blank? + ActiveRecord::Base.configurations.slice(*environments).each do |configuration_environment, configuration| + next unless configuration["database"] + + yield configuration, configuration_environment end end diff --git a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb index 84265aa9e3..e697fa6def 100644 --- a/activerecord/lib/active_record/tasks/mysql_database_tasks.rb +++ b/activerecord/lib/active_record/tasks/mysql_database_tasks.rb @@ -3,8 +3,6 @@ module ActiveRecord module Tasks # :nodoc: class MySQLDatabaseTasks # :nodoc: - ACCESS_DENIED_ERROR = 1045 - delegate :connection, :establish_connection, to: ActiveRecord::Base def initialize(configuration) @@ -21,20 +19,6 @@ module ActiveRecord else raise end - rescue error_class => error - if error.respond_to?(:errno) && error.errno == ACCESS_DENIED_ERROR - $stdout.print error.message - establish_connection root_configuration_without_database - connection.create_database configuration["database"], creation_options - if configuration["username"] != "root" - connection.execute grant_statement.gsub(/\s+/, " ").strip - end - establish_connection configuration - else - $stderr.puts error.inspect - $stderr.puts "Couldn't create database for #{configuration.inspect}, #{creation_options.inspect}" - $stderr.puts "(If you set the charset manually, make sure you have a matching collation)" if configuration["encoding"] - end end def drop @@ -99,37 +83,6 @@ module ActiveRecord end end - def error_class - if configuration["adapter"].include?("jdbc") - require_relative "../railties/jdbcmysql_error" - ArJdbcMySQL::Error - elsif defined?(Mysql2) - Mysql2::Error - else - StandardError - end - end - - def grant_statement - <<-SQL -GRANT ALL PRIVILEGES ON `#{configuration['database']}`.* - TO '#{configuration['username']}'@'localhost' -IDENTIFIED BY '#{configuration['password']}' WITH GRANT OPTION; - SQL - end - - def root_configuration_without_database - configuration_without_database.merge( - "username" => "root", - "password" => root_password - ) - end - - def root_password - $stdout.print "Please provide the root password for your MySQL installation\n>" - $stdin.gets.strip - end - def prepare_command_options args = { "host" => "--host", diff --git a/activerecord/lib/active_record/transactions.rb b/activerecord/lib/active_record/transactions.rb index 6761f2da25..97cba5d1c7 100644 --- a/activerecord/lib/active_record/transactions.rb +++ b/activerecord/lib/active_record/transactions.rb @@ -285,7 +285,7 @@ module ActiveRecord fire_on = Array(options[:on]) assert_valid_transaction_action(fire_on) options[:if] = Array(options[:if]) - options[:if].unshift("transaction_include_any_action?(#{fire_on})") + options[:if].unshift(-> { transaction_include_any_action?(fire_on) }) end end diff --git a/activerecord/lib/active_record/type.rb b/activerecord/lib/active_record/type.rb index fa22df92b8..c303186ef2 100644 --- a/activerecord/lib/active_record/type.rb +++ b/activerecord/lib/active_record/type.rb @@ -2,21 +2,21 @@ require "active_model/type" -require_relative "type/internal/timezone" +require "active_record/type/internal/timezone" -require_relative "type/date" -require_relative "type/date_time" -require_relative "type/decimal_without_scale" -require_relative "type/json" -require_relative "type/time" -require_relative "type/text" -require_relative "type/unsigned_integer" +require "active_record/type/date" +require "active_record/type/date_time" +require "active_record/type/decimal_without_scale" +require "active_record/type/json" +require "active_record/type/time" +require "active_record/type/text" +require "active_record/type/unsigned_integer" -require_relative "type/serialized" -require_relative "type/adapter_specific_registry" +require "active_record/type/serialized" +require "active_record/type/adapter_specific_registry" -require_relative "type/type_map" -require_relative "type/hash_lookup_type_map" +require "active_record/type/type_map" +require "active_record/type/hash_lookup_type_map" module ActiveRecord module Type diff --git a/activerecord/lib/active_record/type_caster.rb b/activerecord/lib/active_record/type_caster.rb index ed2e4fb79c..2e5f45fa3d 100644 --- a/activerecord/lib/active_record/type_caster.rb +++ b/activerecord/lib/active_record/type_caster.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true -require_relative "type_caster/map" -require_relative "type_caster/connection" +require "active_record/type_caster/map" +require "active_record/type_caster/connection" module ActiveRecord module TypeCaster # :nodoc: diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb index 3f5c879f2f..ca27a3f0ab 100644 --- a/activerecord/lib/active_record/validations.rb +++ b/activerecord/lib/active_record/validations.rb @@ -86,8 +86,8 @@ module ActiveRecord end end -require_relative "validations/associated" -require_relative "validations/uniqueness" -require_relative "validations/presence" -require_relative "validations/absence" -require_relative "validations/length" +require "active_record/validations/associated" +require "active_record/validations/uniqueness" +require "active_record/validations/presence" +require "active_record/validations/absence" +require "active_record/validations/length" diff --git a/activerecord/lib/active_record/validations/uniqueness.rb b/activerecord/lib/active_record/validations/uniqueness.rb index f4ad58c087..4c2c5dd852 100644 --- a/activerecord/lib/active_record/validations/uniqueness.rb +++ b/activerecord/lib/active_record/validations/uniqueness.rb @@ -205,9 +205,7 @@ module ActiveRecord # | # Boom! We now have a duplicate # | # title! # - # This could even happen if you use transactions with the 'serializable' - # isolation level. The best way to work around this problem is to add a unique - # index to the database table using + # The best way to work around this problem is to add a unique index to the database table using # {connection.add_index}[rdoc-ref:ConnectionAdapters::SchemaStatements#add_index]. # In the rare case that a race condition occurs, the database will guarantee # the field's uniqueness. diff --git a/activerecord/lib/rails/generators/active_record/application_record/templates/application_record.rb b/activerecord/lib/rails/generators/active_record/application_record/templates/application_record.rb.tt index 60050e0bf8..60050e0bf8 100644 --- a/activerecord/lib/rails/generators/active_record/application_record/templates/application_record.rb +++ b/activerecord/lib/rails/generators/active_record/application_record/templates/application_record.rb.tt diff --git a/activerecord/lib/rails/generators/active_record/migration/templates/create_table_migration.rb b/activerecord/lib/rails/generators/active_record/migration/templates/create_table_migration.rb.tt index 5f7201cfe1..5f7201cfe1 100644 --- a/activerecord/lib/rails/generators/active_record/migration/templates/create_table_migration.rb +++ b/activerecord/lib/rails/generators/active_record/migration/templates/create_table_migration.rb.tt diff --git a/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb b/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb.tt index 481c70201b..481c70201b 100644 --- a/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb +++ b/activerecord/lib/rails/generators/active_record/migration/templates/migration.rb.tt diff --git a/activerecord/lib/rails/generators/active_record/model/templates/model.rb b/activerecord/lib/rails/generators/active_record/model/templates/model.rb.tt index 55dc65c8ad..55dc65c8ad 100644 --- a/activerecord/lib/rails/generators/active_record/model/templates/model.rb +++ b/activerecord/lib/rails/generators/active_record/model/templates/model.rb.tt diff --git a/activerecord/lib/rails/generators/active_record/model/templates/module.rb b/activerecord/lib/rails/generators/active_record/model/templates/module.rb.tt index a3bf1c37b6..a3bf1c37b6 100644 --- a/activerecord/lib/rails/generators/active_record/model/templates/module.rb +++ b/activerecord/lib/rails/generators/active_record/model/templates/module.rb.tt |