diff options
Diffstat (limited to 'activerecord/lib')
52 files changed, 657 insertions, 526 deletions
diff --git a/activerecord/lib/active_record.rb b/activerecord/lib/active_record.rb index 5de6503144..b4377ad6be 100644 --- a/activerecord/lib/active_record.rb +++ b/activerecord/lib/active_record.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true #-- -# Copyright (c) 2004-2017 David Heinemeier Hansson +# Copyright (c) 2004-2018 David Heinemeier Hansson # # Permission is hereby granted, free of charge, to any person obtaining # a copy of this software and associated documentation files (the diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 661605d3e5..b1cad0d0a4 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1061,12 +1061,6 @@ module ActiveRecord # belongs_to :dungeon, inverse_of: :evil_wizard # end # - # There are limitations to <tt>:inverse_of</tt> support: - # - # * does not work with <tt>:through</tt> associations. - # * does not work with <tt>:polymorphic</tt> associations. - # * inverse associations for #belongs_to associations #has_many are ignored. - # # For more information, see the documentation for the +:inverse_of+ option. # # == Deleting from associations @@ -1279,6 +1273,9 @@ module ActiveRecord # Specify the foreign key used for the association. By default this is guessed to be the name # of this class in lower-case and "_id" suffixed. So a Person class that makes a #has_many # association will use "person_id" as the default <tt>:foreign_key</tt>. + # + # If you are going to modify the association (rather than just read from it), then it is + # a good idea to set the <tt>:inverse_of</tt> option. # [:foreign_type] # Specify the column used to store the associated object's type, if this is a polymorphic # association. By default this is guessed to be the name of the polymorphic association @@ -1352,8 +1349,7 @@ module ActiveRecord # <tt>:autosave</tt> to <tt>true</tt>. # [:inverse_of] # Specifies the name of the #belongs_to association on the associated object - # that is the inverse of this #has_many association. Does not work in combination - # with <tt>:through</tt> or <tt>:as</tt> options. + # that is the inverse of this #has_many association. # See ActiveRecord::Associations::ClassMethods's overview on Bi-directional associations for more detail. # [:extend] # Specifies a module or array of modules that will be extended into the association object returned. @@ -1449,6 +1445,9 @@ module ActiveRecord # Specify the foreign key used for the association. By default this is guessed to be the name # of this class in lower-case and "_id" suffixed. So a Person class that makes a #has_one association # will use "person_id" as the default <tt>:foreign_key</tt>. + # + # If you are going to modify the association (rather than just read from it), then it is + # a good idea to set the <tt>:inverse_of</tt> option. # [:foreign_type] # Specify the column used to store the associated object's type, if this is a polymorphic # association. By default this is guessed to be the name of the polymorphic association @@ -1464,6 +1463,9 @@ module ActiveRecord # <tt>:primary_key</tt>, and <tt>:foreign_key</tt> are ignored, as the association uses the # source reflection. You can only use a <tt>:through</tt> query through a #has_one # or #belongs_to association on the join model. + # + # If you are going to modify the association (rather than just read from it), then it is + # a good idea to set the <tt>:inverse_of</tt> option. # [:source] # Specifies the source association name used by #has_one <tt>:through</tt> queries. # Only use it if the name cannot be inferred from the association. @@ -1484,8 +1486,7 @@ module ActiveRecord # <tt>:autosave</tt> to <tt>true</tt>. # [:inverse_of] # Specifies the name of the #belongs_to association on the associated object - # that is the inverse of this #has_one association. Does not work in combination - # with <tt>:through</tt> or <tt>:as</tt> options. + # that is the inverse of this #has_one association. # See ActiveRecord::Associations::ClassMethods's overview on Bi-directional associations for more detail. # [:required] # When set to +true+, the association will also have its presence validated. @@ -1570,6 +1571,9 @@ module ActiveRecord # association will use "person_id" as the default <tt>:foreign_key</tt>. Similarly, # <tt>belongs_to :favorite_person, class_name: "Person"</tt> will use a foreign key # of "favorite_person_id". + # + # If you are going to modify the association (rather than just read from it), then it is + # a good idea to set the <tt>:inverse_of</tt> option. # [:foreign_type] # Specify the column used to store the associated object's type, if this is a polymorphic # association. By default this is guessed to be the name of the association with a "_type" @@ -1619,8 +1623,7 @@ module ActiveRecord # +after_commit+ and +after_rollback+ callbacks are executed. # [:inverse_of] # Specifies the name of the #has_one or #has_many association on the associated - # object that is the inverse of this #belongs_to association. Does not work in - # combination with the <tt>:polymorphic</tt> options. + # object that is the inverse of this #belongs_to association. # See ActiveRecord::Associations::ClassMethods's overview on Bi-directional associations for more detail. # [:optional] # When set to +true+, the association will not have its presence validated. @@ -1789,6 +1792,9 @@ module ActiveRecord # of this class in lower-case and "_id" suffixed. So a Person class that makes # a #has_and_belongs_to_many association to Project will use "person_id" as the # default <tt>:foreign_key</tt>. + # + # If you are going to modify the association (rather than just read from it), then it is + # a good idea to set the <tt>:inverse_of</tt> option. # [:association_foreign_key] # Specify the foreign key used for the association on the receiving side of the association. # By default this is guessed to be the name of the associated class in lower-case and "_id" suffixed. diff --git a/activerecord/lib/active_record/associations/alias_tracker.rb b/activerecord/lib/active_record/associations/alias_tracker.rb index 14881cfe17..4f3893588e 100644 --- a/activerecord/lib/active_record/associations/alias_tracker.rb +++ b/activerecord/lib/active_record/associations/alias_tracker.rb @@ -30,20 +30,12 @@ module ActiveRecord join.left.scan( /JOIN(?:\s+\w+)?\s+(?:\S+\s+)?(?:#{quoted_name}|#{name})\sON/i ).size - elsif join.respond_to? :left + elsif join.is_a?(Arel::Nodes::Join) join.left.name == name ? 1 : 0 elsif join.is_a?(Hash) join.fetch(name, 0) else - # this branch is reached by two tests: - # - # activerecord/test/cases/associations/cascaded_eager_loading_test.rb:37 - # with :posts - # - # activerecord/test/cases/associations/eager_test.rb:1133 - # with :comments - # - 0 + raise ArgumentError, "joins list should be initialized by list of Arel::Nodes::Join" end end diff --git a/activerecord/lib/active_record/associations/belongs_to_association.rb b/activerecord/lib/active_record/associations/belongs_to_association.rb index ba54cd8f49..bd2012df84 100644 --- a/activerecord/lib/active_record/associations/belongs_to_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_association.rb @@ -12,17 +12,20 @@ module ActiveRecord if record raise_on_type_mismatch!(record) update_counters_on_replace(record) - replace_keys(record) set_inverse_instance(record) @updated = true else decrement_counters - remove_keys end self.target = record end + def target=(record) + replace_keys(record) + super + end + def default(&block) writer(owner.instance_exec(&block)) if reader.nil? end @@ -49,9 +52,9 @@ module ActiveRecord def update_counters(by) if require_counter_update? && foreign_key_present? if target && !stale_target? - target.increment!(reflection.counter_cache_column, by) + target.increment!(reflection.counter_cache_column, by, touch: reflection.options[:touch]) else - klass.update_counters(target_id, reflection.counter_cache_column => by) + klass.update_counters(target_id, reflection.counter_cache_column => by, touch: reflection.options[:touch]) end end end @@ -78,11 +81,8 @@ module ActiveRecord end def replace_keys(record) - owner[reflection.foreign_key] = record._read_attribute(reflection.association_primary_key(record.class)) - end - - def remove_keys - owner[reflection.foreign_key] = nil + owner[reflection.foreign_key] = record ? + record._read_attribute(reflection.association_primary_key(record.class)) : nil end def foreign_key_present? diff --git a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb index 4ce3474bd5..55d789c66a 100644 --- a/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb +++ b/activerecord/lib/active_record/associations/belongs_to_polymorphic_association.rb @@ -13,12 +13,7 @@ module ActiveRecord def replace_keys(record) super - owner[reflection.foreign_type] = record.class.base_class.name - end - - def remove_keys - super - owner[reflection.foreign_type] = nil + owner[reflection.foreign_type] = record ? record.class.base_class.name : nil end def different_target?(record) diff --git a/activerecord/lib/active_record/associations/builder/association.rb b/activerecord/lib/active_record/associations/builder/association.rb index ca3032d967..7c69cd65ee 100644 --- a/activerecord/lib/active_record/associations/builder/association.rb +++ b/activerecord/lib/active_record/associations/builder/association.rb @@ -104,8 +104,8 @@ module ActiveRecord::Associations::Builder # :nodoc: def self.define_readers(mixin, name) mixin.class_eval <<-CODE, __FILE__, __LINE__ + 1 - def #{name}(*args) - association(:#{name}).reader(*args) + def #{name} + association(:#{name}).reader end CODE end diff --git a/activerecord/lib/active_record/associations/builder/belongs_to.rb b/activerecord/lib/active_record/associations/builder/belongs_to.rb index 9904ee4bed..c161454c1a 100644 --- a/activerecord/lib/active_record/associations/builder/belongs_to.rb +++ b/activerecord/lib/active_record/associations/builder/belongs_to.rb @@ -114,9 +114,13 @@ module ActiveRecord::Associations::Builder # :nodoc: BelongsTo.touch_record(record, record.send(changes_method), foreign_key, n, touch, belongs_to_touch_method) }} - model.after_save callback.(:saved_changes), if: :saved_changes? - model.after_touch callback.(:changes_to_save) - model.after_destroy callback.(:changes_to_save) + unless reflection.counter_cache_column + model.after_create callback.(:saved_changes), if: :saved_changes? + model.after_destroy callback.(:changes_to_save) + end + + model.after_update callback.(:saved_changes), if: :saved_changes? + model.after_touch callback.(:changes_to_save) end def self.add_default_callbacks(model, reflection) diff --git a/activerecord/lib/active_record/associations/collection_association.rb b/activerecord/lib/active_record/associations/collection_association.rb index 921237a735..de8afc9ccb 100644 --- a/activerecord/lib/active_record/associations/collection_association.rb +++ b/activerecord/lib/active_record/associations/collection_association.rb @@ -52,11 +52,11 @@ module ActiveRecord # Implements the ids writer method, e.g. foo.item_ids= for Foo.has_many :items def ids_writer(ids) - pk_type = reflection.association_primary_key_type + primary_key = reflection.association_primary_key + pk_type = klass.type_for_attribute(primary_key.to_s) ids = Array(ids).reject(&:blank?) ids.map! { |i| pk_type.cast(i) } - primary_key = reflection.association_primary_key records = klass.where(primary_key => ids).index_by do |r| r.public_send(primary_key) end.values_at(*ids).compact diff --git a/activerecord/lib/active_record/associations/has_many_association.rb b/activerecord/lib/active_record/associations/has_many_association.rb index 07c7f28d2d..cf85a87fa7 100644 --- a/activerecord/lib/active_record/associations/has_many_association.rb +++ b/activerecord/lib/active_record/associations/has_many_association.rb @@ -63,7 +63,7 @@ module ActiveRecord count = if reflection.has_cached_counter? owner._read_attribute(reflection.counter_cache_column).to_i else - scope.count + scope.count(:all) end # If there's nothing in the database and @target has no new records diff --git a/activerecord/lib/active_record/associations/has_many_through_association.rb b/activerecord/lib/active_record/associations/has_many_through_association.rb index adbf52b87c..59929b8c4e 100644 --- a/activerecord/lib/active_record/associations/has_many_through_association.rb +++ b/activerecord/lib/active_record/associations/has_many_through_association.rb @@ -8,9 +8,7 @@ module ActiveRecord def initialize(owner, reflection) super - - @through_records = {} - @through_association = nil + @through_records = {} end def concat(*records) @@ -50,11 +48,6 @@ module ActiveRecord end private - - def through_association - @through_association ||= owner.association(through_reflection.name) - end - # The through record (built with build_record) is temporarily cached # so that it may be reused if insert_record is subsequently called. # @@ -140,21 +133,15 @@ module ActiveRecord scope = through_association.scope scope.where! construct_join_attributes(*records) + scope = scope.where(through_scope_attributes) case method when :destroy if scope.klass.primary_key - count = scope.destroy_all.length + count = scope.destroy_all.count(&:destroyed?) else scope.each(&:_run_destroy_callbacks) - - arel = scope.arel - - stmt = Arel::DeleteManager.new - stmt.from scope.klass.arel_table - stmt.wheres = arel.constraints - - count = scope.klass.connection.delete(stmt, "SQL") + count = scope.delete_all end when :nullify count = scope.update_all(source_reflection.foreign_key => nil) diff --git a/activerecord/lib/active_record/associations/has_one_through_association.rb b/activerecord/lib/active_record/associations/has_one_through_association.rb index 36746f9115..491282adf7 100644 --- a/activerecord/lib/active_record/associations/has_one_through_association.rb +++ b/activerecord/lib/active_record/associations/has_one_through_association.rb @@ -6,17 +6,16 @@ module ActiveRecord class HasOneThroughAssociation < HasOneAssociation #:nodoc: include ThroughAssociation - def replace(record) - create_through_record(record) + def replace(record, save = true) + create_through_record(record, save) self.target = record end private - - def create_through_record(record) + def create_through_record(record, save) ensure_not_nested - through_proxy = owner.association(through_reflection.name) + through_proxy = through_association through_record = through_proxy.load_target if through_record && !record @@ -30,7 +29,7 @@ module ActiveRecord if through_record through_record.update(attributes) - elsif owner.new_record? + elsif owner.new_record? || !save through_proxy.build(attributes) else through_proxy.create(attributes) diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index e1087be9b3..59320431ee 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -83,7 +83,7 @@ module ActiveRecord # { author: :avatar } # [ :books, { author: :avatar } ] def preload(records, associations, preload_scope = nil) - records = records.compact + records = Array.wrap(records).compact if records.empty? [] diff --git a/activerecord/lib/active_record/associations/through_association.rb b/activerecord/lib/active_record/associations/through_association.rb index bce2a95ce1..5afb0bc068 100644 --- a/activerecord/lib/active_record/associations/through_association.rb +++ b/activerecord/lib/active_record/associations/through_association.rb @@ -4,9 +4,24 @@ module ActiveRecord module Associations # = Active Record Through Association module ThroughAssociation #:nodoc: - delegate :source_reflection, :through_reflection, to: :reflection + delegate :source_reflection, to: :reflection private + def through_reflection + @through_reflection ||= begin + refl = reflection.through_reflection + + while refl.through_reflection? + refl = refl.through_reflection + end + + refl + end + end + + def through_association + @through_association ||= owner.association(through_reflection.name) + end # We merge in these scopes for two reasons: # @@ -38,24 +53,22 @@ module ActiveRecord def construct_join_attributes(*records) ensure_mutable - if source_reflection.association_primary_key(reflection.klass) == reflection.klass.primary_key + association_primary_key = source_reflection.association_primary_key(reflection.klass) + + if association_primary_key == reflection.klass.primary_key && !options[:source_type] join_attributes = { source_reflection.name => records } else join_attributes = { - source_reflection.foreign_key => - records.map { |record| - record.send(source_reflection.association_primary_key(reflection.klass)) - } + source_reflection.foreign_key => records.map(&association_primary_key.to_sym) } end if options[:source_type] - join_attributes[source_reflection.foreign_type] = - records.map { |record| record.class.base_class.name } + join_attributes[source_reflection.foreign_type] = [ options[:source_type] ] end if records.count == 1 - Hash[join_attributes.map { |k, v| [k, v.first] }] + join_attributes.transform_values!(&:first) else join_attributes end diff --git a/activerecord/lib/active_record/attribute_methods/dirty.rb b/activerecord/lib/active_record/attribute_methods/dirty.rb index 3de6fe566d..df4c79b0f6 100644 --- a/activerecord/lib/active_record/attribute_methods/dirty.rb +++ b/activerecord/lib/active_record/attribute_methods/dirty.rb @@ -32,9 +32,7 @@ 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 - @attributes_changed_by_setter = ActiveSupport::HashWithIndifferentAccess.new @mutations_from_database = nil end end @@ -114,12 +112,12 @@ module ActiveRecord # Alias for +changed+ def changed_attribute_names_to_save - changes_to_save.keys + mutations_from_database.changed_attribute_names end # Alias for +changed_attributes+ def attributes_in_database - changes_to_save.transform_values(&:first) + mutations_from_database.changed_values end private diff --git a/activerecord/lib/active_record/attributes.rb b/activerecord/lib/active_record/attributes.rb index 0b7c9398a8..35150889d9 100644 --- a/activerecord/lib/active_record/attributes.rb +++ b/activerecord/lib/active_record/attributes.rb @@ -57,7 +57,7 @@ module ActiveRecord # store_listing = StoreListing.new(price_in_cents: '10.1') # # # before - # store_listing.price_in_cents # => BigDecimal.new(10.1) + # store_listing.price_in_cents # => BigDecimal(10.1) # # class StoreListing < ActiveRecord::Base # attribute :price_in_cents, :integer diff --git a/activerecord/lib/active_record/callbacks.rb b/activerecord/lib/active_record/callbacks.rb index 9ab2780760..9dbdf845bd 100644 --- a/activerecord/lib/active_record/callbacks.rb +++ b/activerecord/lib/active_record/callbacks.rb @@ -232,7 +232,7 @@ module ActiveRecord # # For example: # - # class Topic + # class Topic < ActiveRecord::Base # has_many :children # # after_save :log_children @@ -257,7 +257,7 @@ module ActiveRecord # # For example: # - # class Topic + # class Topic < ActiveRecord::Base # has_many :children # # after_commit :log_children diff --git a/activerecord/lib/active_record/collection_cache_key.rb b/activerecord/lib/active_record/collection_cache_key.rb index 88b398ad45..0520591f4f 100644 --- a/activerecord/lib/active_record/collection_cache_key.rb +++ b/activerecord/lib/active_record/collection_cache_key.rb @@ -3,11 +3,11 @@ module ActiveRecord module CollectionCacheKey def collection_cache_key(collection = all, timestamp_column = :updated_at) # :nodoc: - query_signature = Digest::MD5.hexdigest(collection.to_sql) + query_signature = ActiveSupport::Digest.hexdigest(collection.to_sql) key = "#{collection.model_name.cache_key}/query-#{query_signature}" - if collection.loaded? - size = collection.size + if collection.loaded? || collection.distinct_value + size = collection.records.size if size > 0 timestamp = collection.max_by(×tamp_column)._read_attribute(timestamp_column) end @@ -20,8 +20,7 @@ module ActiveRecord select_values = "COUNT(*) AS #{connection.quote_column_name("size")}, MAX(%s) AS timestamp" if collection.has_limit_or_offset? - query = collection.spawn - query.select_values = [column] + query = collection.select(column) subquery_alias = "subquery_for_cache_key" subquery_column = "#{subquery_alias}.#{timestamp_column}" subquery = query.arel.as(subquery_alias) 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 9849f9d5d7..c730584902 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb @@ -1005,9 +1005,7 @@ module ActiveRecord def retrieve_connection(spec_name) #:nodoc: pool = retrieve_connection_pool(spec_name) raise ConnectionNotEstablished, "No connection pool with '#{spec_name}' found." unless pool - conn = pool.connection - raise ConnectionNotEstablished, "No connection for '#{spec_name}' in connection pool" unless conn - conn + pool.connection end # Returns true if a connection that's accessible to this class has diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb index bd05fb8f6e..4a191d337c 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_creation.rb @@ -95,6 +95,7 @@ module ActiveRecord if options_sql = options[:options] create_sql << " #{options_sql}" end + create_sql end def column_options(o) 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 4f58b0242c..c32a234be4 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb @@ -1049,8 +1049,8 @@ module ActiveRecord sm_table = quote_table_name(ActiveRecord::SchemaMigration.table_name) migrated = ActiveRecord::SchemaMigration.all_versions.map(&:to_i) - versions = ActiveRecord::Migrator.migration_files(migrations_paths).map do |file| - ActiveRecord::Migrator.parse_migration_filename(file).first.to_i + versions = migration_context.migration_files.map do |file| + migration_context.parse_migration_filename(file).first.to_i end unless migrated.include?(version) diff --git a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb index fc80d332f9..7bd54f777e 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb @@ -119,6 +119,14 @@ module ActiveRecord end end + def migrations_paths + @config[:migrations_paths] || Migrator.migrations_paths + end + + def migration_context + MigrationContext.new(migrations_paths) + end + class Version include Comparable @@ -537,12 +545,7 @@ module ActiveRecord end def extract_limit(sql_type) - case sql_type - when /^bigint/i - 8 - when /\((.*)\)/ - $1.to_i - end + $1.to_i if sql_type =~ /\((.*)\)/ end def translate_exception_class(e, sql) 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 479131caad..b394a8969f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -117,11 +117,11 @@ module ActiveRecord end def get_advisory_lock(lock_name, timeout = 0) # :nodoc: - query_value("SELECT GET_LOCK(#{quote(lock_name)}, #{timeout})") == 1 + query_value("SELECT GET_LOCK(#{quote(lock_name.to_s)}, #{timeout})") == 1 end def release_advisory_lock(lock_name) # :nodoc: - query_value("SELECT RELEASE_LOCK(#{quote(lock_name)})") == 1 + query_value("SELECT RELEASE_LOCK(#{quote(lock_name.to_s)})") == 1 end def native_database_types @@ -249,7 +249,7 @@ module ActiveRecord # create_database 'matt_development', charset: :big5 def create_database(name, options = {}) if options[:collation] - execute "CREATE DATABASE #{quote_table_name(name)} DEFAULT CHARACTER SET #{quote_table_name(options[:charset] || 'utf8')} COLLATE #{quote_table_name(options[:collation])}" + execute "CREATE DATABASE #{quote_table_name(name)} DEFAULT COLLATE #{quote_table_name(options[:collation])}" else execute "CREATE DATABASE #{quote_table_name(name)} DEFAULT CHARACTER SET #{quote_table_name(options[:charset] || 'utf8')}" end @@ -292,10 +292,6 @@ module ActiveRecord SQL end - def create_table(table_name, **options) #:nodoc: - super(table_name, options: "ENGINE=InnoDB", **options) - end - def bulk_change_table(table_name, operations) #:nodoc: sqls = operations.flat_map do |command, args| table, arguments = args.shift, args @@ -403,12 +399,13 @@ module ActiveRecord fk.constraint_name AS 'name', rc.update_rule AS 'on_update', rc.delete_rule AS 'on_delete' - FROM information_schema.key_column_usage fk - JOIN information_schema.referential_constraints rc + FROM information_schema.referential_constraints rc + JOIN information_schema.key_column_usage fk USING (constraint_schema, constraint_name) WHERE fk.referenced_column_name IS NOT NULL AND fk.table_schema = #{scope[:schema]} AND fk.table_name = #{scope[:name]} + AND rc.constraint_schema = #{scope[:schema]} AND rc.table_name = #{scope[:name]} SQL @@ -716,7 +713,8 @@ module ActiveRecord # to work with MySQL 5.7.6 which sets optimizer_switch='derived_merge=on' subselect.distinct unless select.limit || select.offset || select.orders.any? - Arel::SelectManager.new(subselect.as("__active_record_temp")).project(Arel.sql(key.name)) + key_name = quote_column_name(key.name) + Arel::SelectManager.new(subselect.as("__active_record_temp")).project(Arel.sql(key_name)) end def supports_rename_index? diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb index 879dba7afd..e7d33855c4 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/decimal.rb @@ -6,7 +6,7 @@ module ActiveRecord module OID # :nodoc: class Decimal < Type::Decimal # :nodoc: def infinity(options = {}) - BigDecimal.new("Infinity") * (options[:negative] ? -1 : 1) + BigDecimal("Infinity") * (options[:negative] ? -1 : 1) end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb index a89aa5ea09..6edb7cfd3c 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/oid/range.rb @@ -60,7 +60,7 @@ module ActiveRecord end def type_cast_single_for_database(value) - infinity?(value) ? "" : @subtype.serialize(value) + infinity?(value) ? value : @subtype.serialize(value) end def extract_bounds(value) diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb index 9fdeab06c1..e75202b0be 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/quoting.rb @@ -138,7 +138,7 @@ module ActiveRecord end def encode_range(range) - "[#{type_cast(range.first)},#{type_cast(range.last)}#{range.exclude_end? ? ')' : ']'}" + "[#{type_cast_range_value(range.first)},#{type_cast_range_value(range.last)}#{range.exclude_end? ? ')' : ']'}" end def determine_encoding_of_strings_in_array(value) @@ -154,6 +154,14 @@ module ActiveRecord else _type_cast(values) end end + + def type_cast_range_value(value) + infinity?(value) ? "" : type_cast(value) + end + + def infinity?(value) + value.respond_to?(:infinite?) && value.infinite? + end end end end diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb index bf5fbb30e1..b9d2f4da39 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb @@ -38,7 +38,7 @@ module ActiveRecord " TABLESPACE = \"#{value}\"" when :connection_limit " CONNECTION LIMIT = #{value}" - else + else "" end end @@ -364,6 +364,31 @@ module ActiveRecord SQL end + def bulk_change_table(table_name, operations) + sql_fragments = [] + non_combinable_operations = [] + + operations.each do |command, args| + table, arguments = args.shift, args + method = :"#{command}_for_alter" + + if respond_to?(method, true) + sqls, procs = Array(send(method, table, *arguments)).partition { |v| v.is_a?(String) } + sql_fragments << sqls + non_combinable_operations << procs if procs.present? + else + execute "ALTER TABLE #{quote_table_name(table_name)} #{sql_fragments.join(", ")}" unless sql_fragments.empty? + non_combinable_operations.each(&:call) + sql_fragments = [] + non_combinable_operations = [] + send(command, table, *arguments) + end + end + + execute "ALTER TABLE #{quote_table_name(table_name)} #{sql_fragments.join(", ")}" unless sql_fragments.empty? + non_combinable_operations.each(&:call) + end + # Renames a table. # Also renames a table's primary key sequence if the sequence name exists and # matches the Active Record default. @@ -394,7 +419,7 @@ module ActiveRecord def change_column(table_name, column_name, type, options = {}) #:nodoc: clear_cache! - sqls, procs = change_column_for_alter(table_name, column_name, type, options) + sqls, procs = Array(change_column_for_alter(table_name, column_name, type, options)).partition { |v| v.is_a?(String) } execute "ALTER TABLE #{quote_table_name(table_name)} #{sqls.join(", ")}" procs.each(&:call) end @@ -502,6 +527,14 @@ module ActiveRecord end end + def foreign_tables + query_values(data_source_sql(type: "FOREIGN TABLE"), "SCHEMA") + end + + def foreign_table_exists?(table_name) + query_values(data_source_sql(table_name, type: "FOREIGN TABLE"), "SCHEMA").any? if table_name.present? + end + # Maps logical Rails types to PostgreSQL-specific data types. def type_to_sql(type, limit: nil, precision: nil, scale: nil, array: nil, **) # :nodoc: sql = \ @@ -665,12 +698,10 @@ module ActiveRecord 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] + sqls << Proc.new { change_column_comment(table_name, column_name, options[:comment]) } if options.key?(:comment) + sqls end @@ -694,6 +725,14 @@ module ActiveRecord "ALTER #{quote_column_name(column_name)} #{null ? 'DROP' : 'SET'} NOT NULL" end + 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_for_alter(table_name, options = {}) + [remove_column_for_alter(table_name, :updated_at), remove_column_for_alter(table_name, :created_at)] + end + def add_index_opclass(quoted_columns, **options) opclasses = options_for_index_columns(options[:opclass]) quoted_columns.each do |name, column| @@ -708,7 +747,7 @@ module ActiveRecord 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 + scope[:type] ||= "'r','v','m','f'" # (r)elation/table, (v)iew, (m)aterialized view, (f)oreign table sql = "SELECT c.relname FROM pg_class c LEFT JOIN pg_namespace n ON n.oid = c.relnamespace".dup sql << " WHERE n.nspname = #{scope[:schema]}" @@ -725,6 +764,8 @@ module ActiveRecord "'r'" when "VIEW" "'v','m'" + when "FOREIGN TABLE" + "'f'" end scope = {} scope[:schema] = schema ? quote(schema) : "ANY (current_schemas(false))" diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb index 23fc69d649..ddc5a91286 100644 --- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb @@ -1,7 +1,7 @@ # frozen_string_literal: true # Make sure we're using pg high enough for type casts and Ruby 2.2+ compatibility -gem "pg", "~> 0.18" +gem "pg", ">= 0.18", "< 2.0" require "pg" require "active_record/connection_adapters/abstract_adapter" @@ -122,6 +122,10 @@ module ActiveRecord include PostgreSQL::SchemaStatements include PostgreSQL::DatabaseStatements + def supports_bulk_alter? + true + end + def supports_index_sort_order? true end @@ -314,6 +318,10 @@ module ActiveRecord postgresql_version >= 90300 end + def supports_foreign_tables? + postgresql_version >= 90300 + end + def supports_pgcrypto_uuid? postgresql_version >= 90400 end diff --git a/activerecord/lib/active_record/connection_adapters/schema_cache.rb b/activerecord/lib/active_record/connection_adapters/schema_cache.rb index f34b6733da..c29cf1f9a1 100644 --- a/activerecord/lib/active_record/connection_adapters/schema_cache.rb +++ b/activerecord/lib/active_record/connection_adapters/schema_cache.rb @@ -28,7 +28,7 @@ module ActiveRecord coder["columns_hash"] = @columns_hash coder["primary_keys"] = @primary_keys coder["data_sources"] = @data_sources - coder["version"] = ActiveRecord::Migrator.current_version + coder["version"] = connection.migration_context.current_version end def init_with(coder) @@ -100,7 +100,7 @@ module ActiveRecord def marshal_dump # if we get current version during initialization, it happens stack over flow. - @version = ActiveRecord::Migrator.current_version + @version = connection.migration_context.current_version [@version, @columns, @columns_hash, @primary_keys, @data_sources] end diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb index c72db15ce3..9c69d8f13b 100644 --- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb @@ -60,7 +60,7 @@ module ActiveRecord include SQLite3::SchemaStatements NATIVE_DATABASE_TYPES = { - primary_key: "INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL", + primary_key: "integer PRIMARY KEY AUTOINCREMENT NOT NULL", string: { name: "varchar" }, text: { name: "text" }, integer: { name: "integer" }, @@ -101,7 +101,7 @@ module ActiveRecord def initialize(connection, logger, connection_options, config) super(connection, logger, config) - @active = nil + @active = true @statements = StatementPool.new(self.class.type_cast_config_to_integer(config[:statement_limit])) configure_connection @@ -144,7 +144,7 @@ module ActiveRecord end def active? - @active != false + @active end # Disconnects from the database if already connected. Otherwise, this @@ -290,19 +290,18 @@ module ActiveRecord rename_table_indexes(table_name, new_name) end - # See: https://www.sqlite.org/lang_altertable.html - # SQLite has an additional restriction on the ALTER TABLE statement - def valid_alter_table_type?(type) - type.to_sym != :primary_key + def valid_alter_table_type?(type, options = {}) + !invalid_alter_table_type?(type, options) end + deprecate :valid_alter_table_type? def add_column(table_name, column_name, type, options = {}) #:nodoc: - if valid_alter_table_type?(type) - super(table_name, column_name, type, options) - else + if invalid_alter_table_type?(type, options) alter_table(table_name) do |definition| definition.column(column_name, type, options) end + else + super end end @@ -386,6 +385,12 @@ module ActiveRecord end alias column_definitions table_structure + # See: https://www.sqlite.org/lang_altertable.html + # SQLite has an additional restriction on the ALTER TABLE statement + def invalid_alter_table_type?(type, options) + type.to_sym == :primary_key || options[:primary_key] + end + def alter_table(table_name, options = {}) altered_table_name = "a#{table_name}" caller = lambda { |definition| yield definition if block_given? } @@ -452,6 +457,7 @@ module ActiveRecord # index name can't be the same opts = { name: name.gsub(/(^|_)(#{from})_/, "\\1#{to}_"), internal: true } opts[:unique] = true if index.unique + opts[:where] = index.where if index.where add_index(to, columns, opts) end end diff --git a/activerecord/lib/active_record/core.rb b/activerecord/lib/active_record/core.rb index 481159e501..88810cb328 100644 --- a/activerecord/lib/active_record/core.rb +++ b/activerecord/lib/active_record/core.rb @@ -18,6 +18,13 @@ module ActiveRecord mattr_accessor :logger, instance_writer: false ## + # :singleton-method: + # + # Specifies if the methods calling database queries should be logged below + # their relevant queries. Defaults to false. + mattr_accessor :verbose_query_logs, instance_writer: false, default: false + + ## # Contains the database configuration - as is typically stored in config/database.yml - # as a Hash. # diff --git a/activerecord/lib/active_record/inheritance.rb b/activerecord/lib/active_record/inheritance.rb index 0715c11473..f3fe610c09 100644 --- a/activerecord/lib/active_record/inheritance.rb +++ b/activerecord/lib/active_record/inheritance.rb @@ -47,14 +47,13 @@ module ActiveRecord # Determines if one of the attributes passed in is the inheritance column, # and if the inheritance column is attr accessible, it initializes an # instance of the given subclass instead of the base class. - def new(*args, &block) + def new(attributes = nil, &block) if abstract_class? || self == Base raise NotImplementedError, "#{self} is an abstract class and cannot be instantiated." end - attrs = args.first if has_attribute?(inheritance_column) - subclass = subclass_from_attributes(attrs) + subclass = subclass_from_attributes(attributes) if subclass.nil? && base_class == self subclass = subclass_from_attributes(column_defaults) @@ -62,7 +61,7 @@ module ActiveRecord end if subclass && subclass != self - subclass.new(*args, &block) + subclass.new(attributes, &block) else super end diff --git a/activerecord/lib/active_record/log_subscriber.rb b/activerecord/lib/active_record/log_subscriber.rb index 405f3a30c6..9234029c22 100644 --- a/activerecord/lib/active_record/log_subscriber.rb +++ b/activerecord/lib/active_record/log_subscriber.rb @@ -90,6 +90,47 @@ module ActiveRecord def logger ActiveRecord::Base.logger end + + def debug(progname = nil, &block) + return unless super + + if ActiveRecord::Base.verbose_query_logs + log_query_source + end + end + + def log_query_source + source_line, line_number = extract_callstack(caller_locations) + + if source_line + if defined?(::Rails.root) + app_root = "#{::Rails.root.to_s}/".freeze + source_line = source_line.sub(app_root, "") + end + + logger.debug(" ↳ #{ source_line }:#{ line_number }") + end + end + + def extract_callstack(callstack) + line = callstack.find do |frame| + frame.absolute_path && !ignored_callstack(frame.absolute_path) + end + + offending_line = line || callstack.first + + [ + offending_line.path, + offending_line.lineno + ] + end + + RAILS_GEM_ROOT = File.expand_path("../../../..", __FILE__) + "/" + + def ignored_callstack(path) + path.start_with?(RAILS_GEM_ROOT) || + path.start_with?(RbConfig::CONFIG["rubylibdir"]) + end end end diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb index 5c10d4ff24..798328233f 100644 --- a/activerecord/lib/active_record/migration.rb +++ b/activerecord/lib/active_record/migration.rb @@ -3,6 +3,7 @@ require "set" require "zlib" require "active_support/core_ext/module/attribute_accessors" +require "active_record/tasks/database_tasks" module ActiveRecord class MigrationError < ActiveRecordError#:nodoc: @@ -550,7 +551,7 @@ module ActiveRecord end def call(env) - mtime = ActiveRecord::Migrator.last_migration.mtime.to_i + mtime = ActiveRecord::Base.connection.migration_context.last_migration.mtime.to_i if @last_check < mtime ActiveRecord::Migration.check_pending!(connection) @last_check = mtime @@ -575,11 +576,11 @@ module ActiveRecord # Raises <tt>ActiveRecord::PendingMigrationError</tt> error if any migrations are pending. def check_pending!(connection = Base.connection) - raise ActiveRecord::PendingMigrationError if ActiveRecord::Migrator.needs_migration?(connection) + raise ActiveRecord::PendingMigrationError if connection.migration_context.needs_migration? end def load_schema_if_pending! - if ActiveRecord::Migrator.needs_migration? || !ActiveRecord::Migrator.any_migrations? + if Base.connection.migration_context.needs_migration? || !Base.connection.migration_context.any_migrations? # Roundtrip to Rake to allow plugins to hook into database initialization. root = defined?(ENGINE_ROOT) ? ENGINE_ROOT : Rails.root FileUtils.cd(root) do @@ -876,10 +877,10 @@ module ActiveRecord FileUtils.mkdir_p(destination) unless File.exist?(destination) - destination_migrations = ActiveRecord::Migrator.migrations(destination) + destination_migrations = ActiveRecord::MigrationContext.new(destination).migrations last = destination_migrations.last sources.each do |scope, path| - source_migrations = ActiveRecord::Migrator.migrations(path) + source_migrations = ActiveRecord::MigrationContext.new(path).migrations source_migrations.each do |migration| source = File.binread(migration.filename) @@ -997,132 +998,147 @@ module ActiveRecord end end - class Migrator#:nodoc: - class << self - attr_writer :migrations_paths - alias :migrations_path= :migrations_paths= - - def migrate(migrations_paths, target_version = nil, &block) - case - when target_version.nil? - up(migrations_paths, target_version, &block) - when current_version == 0 && target_version == 0 - [] - when current_version > target_version - down(migrations_paths, target_version, &block) - else - up(migrations_paths, target_version, &block) - end - end + class MigrationContext # :nodoc: + attr_reader :migrations_paths - def rollback(migrations_paths, steps = 1) - move(:down, migrations_paths, steps) - end + def initialize(migrations_paths) + @migrations_paths = migrations_paths + end - def forward(migrations_paths, steps = 1) - move(:up, migrations_paths, steps) + def migrate(target_version = nil, &block) + case + when target_version.nil? + up(target_version, &block) + when current_version == 0 && target_version == 0 + [] + when current_version > target_version + down(target_version, &block) + else + up(target_version, &block) end + end - def up(migrations_paths, target_version = nil) - migrations = migrations(migrations_paths) - migrations.select! { |m| yield m } if block_given? + def rollback(steps = 1) + move(:down, steps) + end - new(:up, migrations, target_version).migrate + def forward(steps = 1) + move(:up, steps) + end + + def up(target_version = nil) + selected_migrations = if block_given? + migrations.select { |m| yield m } + else + migrations end - def down(migrations_paths, target_version = nil) - migrations = migrations(migrations_paths) - migrations.select! { |m| yield m } if block_given? + Migrator.new(:up, selected_migrations, target_version).migrate + end - new(:down, migrations, target_version).migrate + def down(target_version = nil) + selected_migrations = if block_given? + migrations.select { |m| yield m } + else + migrations end - def run(direction, migrations_paths, target_version) - new(direction, migrations(migrations_paths), target_version).run - end + Migrator.new(:down, selected_migrations, target_version).migrate + end - def open(migrations_paths) - new(:up, migrations(migrations_paths), nil) - end + def run(direction, target_version) + Migrator.new(direction, migrations, target_version).run + end - def get_all_versions - if SchemaMigration.table_exists? - SchemaMigration.all_versions.map(&:to_i) - else - [] - end - end + def open + Migrator.new(:up, migrations, nil) + end - def current_version(connection = nil) - get_all_versions.max || 0 - rescue ActiveRecord::NoDatabaseError + def get_all_versions + if SchemaMigration.table_exists? + SchemaMigration.all_versions.map(&:to_i) + else + [] end + end - def needs_migration?(connection = nil) - (migrations(migrations_paths).collect(&:version) - get_all_versions).size > 0 - end + def current_version + get_all_versions.max || 0 + rescue ActiveRecord::NoDatabaseError + end - def any_migrations? - migrations(migrations_paths).any? - end + def needs_migration? + (migrations.collect(&:version) - get_all_versions).size > 0 + end - def last_migration #:nodoc: - migrations(migrations_paths).last || NullMigration.new - end + def any_migrations? + migrations.any? + end - def migrations_paths - @migrations_paths ||= ["db/migrate"] - # just to not break things if someone uses: migrations_path = some_string - Array(@migrations_paths) - end + def last_migration #:nodoc: + migrations.last || NullMigration.new + end - def parse_migration_filename(filename) # :nodoc: - File.basename(filename).scan(Migration::MigrationFilenameRegexp).first + def parse_migration_filename(filename) # :nodoc: + File.basename(filename).scan(Migration::MigrationFilenameRegexp).first + end + + def migrations + migrations = migration_files.map do |file| + version, name, scope = parse_migration_filename(file) + raise IllegalMigrationNameError.new(file) unless version + version = version.to_i + name = name.camelize + + MigrationProxy.new(name, version, file, scope) end - def migrations(paths) - paths = Array(paths) + migrations.sort_by(&:version) + end - migrations = migration_files(paths).map do |file| - version, name, scope = parse_migration_filename(file) - raise IllegalMigrationNameError.new(file) unless version - version = version.to_i - name = name.camelize + def migrations_status + db_list = ActiveRecord::SchemaMigration.normalized_versions - MigrationProxy.new(name, version, file, scope) - end + file_list = migration_files.map do |file| + version, name, scope = parse_migration_filename(file) + raise IllegalMigrationNameError.new(file) unless version + version = ActiveRecord::SchemaMigration.normalize_migration_number(version) + status = db_list.delete(version) ? "up" : "down" + [status, version, (name + scope).humanize] + end.compact - migrations.sort_by(&:version) + db_list.map! do |version| + ["up", version, "********** NO FILE **********"] end - def migrations_status(paths) - paths = Array(paths) - - db_list = ActiveRecord::SchemaMigration.normalized_versions + (db_list + file_list).sort_by { |_, version, _| version } + end - file_list = migration_files(paths).map do |file| - version, name, scope = parse_migration_filename(file) - raise IllegalMigrationNameError.new(file) unless version - version = ActiveRecord::SchemaMigration.normalize_migration_number(version) - status = db_list.delete(version) ? "up" : "down" - [status, version, (name + scope).humanize] - end.compact + def migration_files + paths = Array(migrations_paths) + Dir[*paths.flat_map { |path| "#{path}/**/[0-9]*_*.rb" }] + end - db_list.map! do |version| - ["up", version, "********** NO FILE **********"] - end + def current_environment + ActiveRecord::ConnectionHandling::DEFAULT_ENV.call + end - (db_list + file_list).sort_by { |_, version, _| version } - end + def protected_environment? + ActiveRecord::Base.protected_environments.include?(last_stored_environment) if last_stored_environment + end - def migration_files(paths) - Dir[*paths.flat_map { |path| "#{path}/**/[0-9]*_*.rb" }] - end + def last_stored_environment + return nil if current_version == 0 + raise NoEnvironmentInSchemaError unless ActiveRecord::InternalMetadata.table_exists? - private + environment = ActiveRecord::InternalMetadata[:environment] + raise NoEnvironmentInSchemaError unless environment + environment + end - def move(direction, migrations_paths, steps) - migrator = new(direction, migrations(migrations_paths)) + private + def move(direction, steps) + migrator = Migrator.new(direction, migrations) if current_version != 0 && !migrator.current_migration raise UnknownMigrationVersionError.new(current_version) @@ -1137,10 +1153,29 @@ module ActiveRecord finish = migrator.migrations[start_index + steps] version = finish ? finish.version : 0 - send(direction, migrations_paths, version) + send(direction, version) + end + end + + class Migrator # :nodoc: + class << self + attr_accessor :migrations_paths + + def migrations_path=(path) + ActiveSupport::Deprecation.warn \ + "ActiveRecord::Migrator.migrations_paths= is now deprecated and will be removed in Rails 6.0." \ + "You can set the `migrations_paths` on the `connection` instead through the `database.yml`." + self.migrations_paths = [path] + end + + # For cases where a table doesn't exist like loading from schema cache + def current_version + MigrationContext.new(migrations_paths).current_version end end + self.migrations_paths = ["db/migrate"] + def initialize(direction, migrations, target_version = nil) @direction = direction @target_version = target_version @@ -1203,7 +1238,7 @@ module ActiveRecord end def load_migrated - @migrated_versions = Set.new(self.class.get_all_versions) + @migrated_versions = Set.new(Base.connection.migration_context.get_all_versions) end private @@ -1235,7 +1270,7 @@ module ActiveRecord # Stores the current environment in the database. def record_environment return if down? - ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Base.connection.migration_context.current_environment end def ran?(migration) @@ -1277,10 +1312,10 @@ module ActiveRecord end def validate(migrations) - name , = migrations.group_by(&:name).find { |_, v| v.length > 1 } + name, = migrations.group_by(&:name).find { |_, v| v.length > 1 } raise DuplicateMigrationNameError.new(name) if name - version , = migrations.group_by(&:version).find { |_, v| v.length > 1 } + version, = migrations.group_by(&:version).find { |_, v| v.length > 1 } raise DuplicateMigrationVersionError.new(version) if version end @@ -1294,23 +1329,6 @@ module ActiveRecord end end - def self.last_stored_environment - return nil if current_version == 0 - raise NoEnvironmentInSchemaError unless ActiveRecord::InternalMetadata.table_exists? - - environment = ActiveRecord::InternalMetadata[:environment] - raise NoEnvironmentInSchemaError unless environment - environment - end - - def self.current_environment - ActiveRecord::ConnectionHandling::DEFAULT_ENV.call - end - - def self.protected_environment? - ActiveRecord::Base.protected_environments.include?(last_stored_environment) if last_stored_environment - end - def up? @direction == :up end diff --git a/activerecord/lib/active_record/migration/compatibility.rb b/activerecord/lib/active_record/migration/compatibility.rb index bd8c054c28..7ae8073478 100644 --- a/activerecord/lib/active_record/migration/compatibility.rb +++ b/activerecord/lib/active_record/migration/compatibility.rb @@ -28,6 +28,14 @@ module ActiveRecord super end end + + def create_table(table_name, options = {}) + if adapter_name == "Mysql2" + super(table_name, options: "ENGINE=InnoDB", **options) + else + super + end + end end class V5_0 < V5_1 diff --git a/activerecord/lib/active_record/model_schema.rb b/activerecord/lib/active_record/model_schema.rb index 1941d3d5ea..fa7537c1a3 100644 --- a/activerecord/lib/active_record/model_schema.rb +++ b/activerecord/lib/active_record/model_schema.rb @@ -87,19 +87,6 @@ module ActiveRecord # Sets the name of the internal metadata table. ## - # :singleton-method: protected_environments - # :call-seq: protected_environments - # - # The array of names of environments where destructive actions should be prohibited. By default, - # the value is <tt>["production"]</tt>. - - ## - # :singleton-method: protected_environments= - # :call-seq: protected_environments=(environments) - # - # Sets an array of names of environments where destructive actions should be prohibited. - - ## # :singleton-method: pluralize_table_names # :call-seq: pluralize_table_names # @@ -122,9 +109,9 @@ module ActiveRecord class_attribute :table_name_suffix, instance_writer: false, default: "" class_attribute :schema_migrations_table_name, instance_accessor: false, default: "schema_migrations" 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 + self.protected_environments = ["production"] self.inheritance_column = "type" self.ignored_columns = [].freeze @@ -238,6 +225,21 @@ module ActiveRecord (parents.detect { |p| p.respond_to?(:table_name_suffix) } || self).table_name_suffix end + # The array of names of environments where destructive actions should be prohibited. By default, + # the value is <tt>["production"]</tt>. + def protected_environments + if defined?(@protected_environments) + @protected_environments + else + superclass.protected_environments + end + end + + # Sets an array of names of environments where destructive actions should be prohibited. + def protected_environments=(environments) + @protected_environments = environments.map(&:to_s) + end + # Defines the name of the table column which will store the class name on single-table # inheritance situations. # @@ -423,7 +425,7 @@ module ActiveRecord # end def reset_column_information connection.clear_cache! - undefine_attribute_methods + ([self] + descendants).each(&:undefine_attribute_methods) connection.schema_cache.clear_data_source_cache!(table_name) reload_schema_from_cache diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index a13b0d0181..a45d011d75 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -359,10 +359,10 @@ module ActiveRecord # Any change to the attributes on either instance will affect both instances. # If you want to change the sti column as well, use #becomes! instead. def becomes(klass) - became = klass.new + became = klass.allocate + became.send(:initialize) became.instance_variable_set("@attributes", @attributes) 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?) became.errors.copy!(errors) @@ -402,11 +402,7 @@ module ActiveRecord verify_readonly_attribute(name) public_send("#{name}=", value) - if has_changes_to_save? - save(validate: false) - else - true - end + save(validate: false) end # Updates the attributes of the model from the passed-in hash and saves the @@ -698,6 +694,7 @@ module ActiveRecord def create_or_update(*args, &block) _raise_readonly_record_error if readonly? + return false if destroyed? result = new_record? ? _create_record(&block) : _update_record(*args, &block) result != false end diff --git a/activerecord/lib/active_record/railtie.rb b/activerecord/lib/active_record/railtie.rb index 4538ed6a5f..7b4b59ac4b 100644 --- a/activerecord/lib/active_record/railtie.rb +++ b/activerecord/lib/active_record/railtie.rb @@ -91,6 +91,7 @@ module ActiveRecord if File.file?(filename) current_version = ActiveRecord::Migrator.current_version + next if current_version.nil? cache = YAML.load(File.read(filename)) diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake index fce3e1c5cf..2e55713311 100644 --- a/activerecord/lib/active_record/railties/databases.rake +++ b/activerecord/lib/active_record/railties/databases.rake @@ -6,7 +6,7 @@ db_namespace = namespace :db do desc "Set the environment value for the database" task "environment:set" => :load_config do ActiveRecord::InternalMetadata.create_table - ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment + ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Base.connection.migration_context.current_environment end task check_protected_environments: :load_config do @@ -99,9 +99,8 @@ db_namespace = namespace :db do ActiveRecord::Tasks::DatabaseTasks.check_target_version - ActiveRecord::Migrator.run( + ActiveRecord::Base.connection.migration_context.run( :up, - ActiveRecord::Tasks::DatabaseTasks.migrations_paths, ActiveRecord::Tasks::DatabaseTasks.target_version ) db_namespace["_dump"].invoke @@ -113,9 +112,8 @@ db_namespace = namespace :db do ActiveRecord::Tasks::DatabaseTasks.check_target_version - ActiveRecord::Migrator.run( + ActiveRecord::Base.connection.migration_context.run( :down, - ActiveRecord::Tasks::DatabaseTasks.migrations_paths, ActiveRecord::Tasks::DatabaseTasks.target_version ) db_namespace["_dump"].invoke @@ -131,8 +129,7 @@ db_namespace = namespace :db do puts "\ndatabase: #{ActiveRecord::Base.connection_config[:database]}\n\n" puts "#{'Status'.center(8)} #{'Migration ID'.ljust(14)} Migration Name" puts "-" * 50 - paths = ActiveRecord::Tasks::DatabaseTasks.migrations_paths - ActiveRecord::Migrator.migrations_status(paths).each do |status, version, name| + ActiveRecord::Base.connection.migration_context.migrations_status.each do |status, version, name| puts "#{status.center(8)} #{version.ljust(14)} #{name}" end puts @@ -142,14 +139,14 @@ db_namespace = namespace :db do desc "Rolls the schema back to the previous version (specify steps w/ STEP=n)." task rollback: :load_config do step = ENV["STEP"] ? ENV["STEP"].to_i : 1 - ActiveRecord::Migrator.rollback(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) + ActiveRecord::Base.connection.migration_context.rollback(step) db_namespace["_dump"].invoke end # desc 'Pushes the schema to the next version (specify steps w/ STEP=n).' task forward: :load_config do step = ENV["STEP"] ? ENV["STEP"].to_i : 1 - ActiveRecord::Migrator.forward(ActiveRecord::Tasks::DatabaseTasks.migrations_paths, step) + ActiveRecord::Base.connection.migration_context.forward(step) db_namespace["_dump"].invoke end @@ -172,12 +169,12 @@ db_namespace = namespace :db do desc "Retrieves the current schema version number" task version: :load_config do - puts "Current version: #{ActiveRecord::Migrator.current_version}" + puts "Current version: #{ActiveRecord::Base.connection.migration_context.current_version}" end # desc "Raises an error if there are pending migrations" task abort_if_pending_migrations: :load_config do - pending_migrations = ActiveRecord::Migrator.open(ActiveRecord::Tasks::DatabaseTasks.migrations_paths).pending_migrations + pending_migrations = ActiveRecord::Base.connection.migration_context.open.pending_migrations if pending_migrations.any? puts "You have #{pending_migrations.size} pending #{pending_migrations.size > 1 ? 'migrations:' : 'migration:'}" diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb index 87bfd75bca..c28e31a3da 100644 --- a/activerecord/lib/active_record/reflection.rb +++ b/activerecord/lib/active_record/reflection.rb @@ -34,7 +34,8 @@ module ActiveRecord def self.add_reflection(ar, name, reflection) ar.clear_reflections_cache - ar._reflections = ar._reflections.merge(name.to_s => reflection) + name = name.to_s + ar._reflections = ar._reflections.except(name).merge!(name => reflection) end def self.add_aggregate_reflection(ar, name, reflection) @@ -293,7 +294,7 @@ module ActiveRecord Relation.create(klass, table, predicate_builder) end - def join_primary_key(_) + def join_primary_key(*) foreign_key end @@ -458,10 +459,6 @@ module ActiveRecord options[:primary_key] || primary_key(klass || self.klass) end - def association_primary_key_type - klass.type_for_attribute(association_primary_key.to_s) - end - def active_record_primary_key @active_record_primary_key ||= options[:primary_key] || primary_key(active_record) end @@ -567,7 +564,7 @@ module ActiveRecord end VALID_AUTOMATIC_INVERSE_MACROS = [:has_many, :has_one, :belongs_to] - INVALID_AUTOMATIC_INVERSE_OPTIONS = [:conditions, :through, :foreign_key] + INVALID_AUTOMATIC_INVERSE_OPTIONS = [:through, :foreign_key] def add_as_source(seed) seed @@ -722,7 +719,7 @@ module ActiveRecord end end - def join_primary_key(klass) + def join_primary_key(klass = nil) polymorphic? ? association_primary_key(klass) : association_primary_key end @@ -859,10 +856,6 @@ module ActiveRecord actual_source_reflection.options[:primary_key] || primary_key(klass || self.klass) end - def association_primary_key_type - klass.type_for_attribute(association_primary_key.to_s) - end - # Gets an array of possible <tt>:through</tt> source reflection names in both singular and plural form. # # class Post < ActiveRecord::Base diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 081ef5771f..10be583ef4 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -10,7 +10,7 @@ module ActiveRecord SINGLE_VALUE_METHODS = [:limit, :offset, :lock, :readonly, :reordering, :reverse_order, :distinct, :create_with, :skip_query_cache] CLAUSE_METHODS = [:where, :having, :from] - INVALID_METHODS_FOR_DELETE_ALL = [:limit, :distinct, :offset, :group, :having] + INVALID_METHODS_FOR_DELETE_ALL = [:distinct, :group, :having] VALUE_METHODS = MULTI_VALUE_METHODS + SINGLE_VALUE_METHODS + CLAUSE_METHODS @@ -52,8 +52,8 @@ module ActiveRecord # # user = users.new { |user| user.name = 'Oscar' } # user.name # => Oscar - def new(*args, &block) - scoping { @klass.new(*args, &block) } + def new(attributes = nil, &block) + scoping { klass.new(scope_for_create(attributes), &block) } end alias build new @@ -77,8 +77,12 @@ module ActiveRecord # # users.create(name: nil) # validation on name # # => #<User id: nil, name: nil, ...> - def create(*args, &block) - scoping { @klass.create(*args, &block) } + def create(attributes = nil, &block) + if attributes.is_a?(Array) + attributes.collect { |attr| create(attr, &block) } + else + scoping { klass.create(scope_for_create(attributes), &block) } + end end # Similar to #create, but calls @@ -87,8 +91,12 @@ module ActiveRecord # # Expects arguments in the same format as # {ActiveRecord::Base.create!}[rdoc-ref:Persistence::ClassMethods#create!]. - def create!(*args, &block) - scoping { @klass.create!(*args, &block) } + def create!(attributes = nil, &block) + if attributes.is_a?(Array) + attributes.collect { |attr| create!(attr, &block) } + else + scoping { klass.create!(scope_for_create(attributes), &block) } + end end def first_or_create(attributes = nil, &block) # :nodoc: @@ -306,10 +314,10 @@ module ActiveRecord stmt = Arel::UpdateManager.new - stmt.set Arel.sql(@klass.send(:sanitize_sql_for_assignment, updates)) + stmt.set Arel.sql(@klass.sanitize_sql_for_assignment(updates)) stmt.table(table) - if has_join_values? + if has_join_values? || offset_value @klass.connection.join_to_update(stmt, arel, arel_attribute(primary_key)) else stmt.key = arel_attribute(primary_key) @@ -357,8 +365,8 @@ module ActiveRecord # # If an invalid method is supplied, #delete_all raises an ActiveRecordError: # - # Post.limit(100).delete_all - # # => ActiveRecord::ActiveRecordError: delete_all doesn't support limit + # Post.distinct.delete_all + # # => ActiveRecord::ActiveRecordError: delete_all doesn't support distinct def delete_all invalid_methods = INVALID_METHODS_FOR_DELETE_ALL.select do |method| value = get_value(method) @@ -376,7 +384,7 @@ module ActiveRecord stmt = Arel::DeleteManager.new stmt.from(table) - if has_join_values? + if has_join_values? || has_limit_or_offset? @klass.connection.join_to_delete(stmt, arel, arel_attribute(primary_key)) else stmt.wheres = arel.constraints @@ -422,7 +430,7 @@ module ActiveRecord relation = self if eager_loading? - find_with_associations { |rel, _| relation = rel } + apply_join_dependency { |rel, _| relation = rel } end conn = klass.connection @@ -440,8 +448,10 @@ module ActiveRecord where_clause.to_h(relation_table_name) end - def scope_for_create - where_values_hash.merge!(create_with_value.stringify_keys) + def scope_for_create(attributes = nil) + scope = where_values_hash.merge!(create_with_value.stringify_keys) + scope.merge!(attributes) if attributes + scope end # Returns true if relation needs eager loading. @@ -523,7 +533,7 @@ module ActiveRecord skip_query_cache_if_necessary do @records = if eager_loading? - find_with_associations do |relation, join_dependency| + apply_join_dependency do |relation, join_dependency| if ActiveRecord::NullRelation === relation [] else diff --git a/activerecord/lib/active_record/relation/calculations.rb b/activerecord/lib/active_record/relation/calculations.rb index d49472fc70..cb0b06cfdc 100644 --- a/activerecord/lib/active_record/relation/calculations.rb +++ b/activerecord/lib/active_record/relation/calculations.rb @@ -217,7 +217,7 @@ module ActiveRecord if operation == "count" column_name ||= select_for_count if column_name == :all - if distinct && (group_values.any? || !(has_limit_or_offset? && order_values.any?)) + if distinct && (group_values.any? || select_values.empty? && order_values.empty?) column_name = primary_key end elsif column_name =~ /\s*DISTINCT[\s(]+/i @@ -249,7 +249,7 @@ module ActiveRecord def execute_simple_calculation(operation, column_name, distinct) #:nodoc: column_alias = column_name - if operation == "count" && has_limit_or_offset? + if operation == "count" && (column_name == :all && distinct || has_limit_or_offset?) # Shortcut when limit is zero. return 0 if limit_value == 0 @@ -391,14 +391,12 @@ module ActiveRecord end def build_count_subquery(relation, column_name, distinct) - relation.select_values = [ - if column_name == :all - distinct ? table[Arel.star] : Arel.sql(FinderMethods::ONE_AS_ONE) - else - column_alias = Arel.sql("count_column") - aggregate_column(column_name).as(column_alias) - end - ] + if column_name == :all + relation.select_values = [ Arel.sql(FinderMethods::ONE_AS_ONE) ] unless distinct + else + column_alias = Arel.sql("count_column") + relation.select_values = [ aggregate_column(column_name).as(column_alias) ] + end subquery = relation.arel.as(Arel.sql("subquery_for_count")) select_value = operation_over_aggregate_column(column_alias || Arel.star, "count", false) diff --git a/activerecord/lib/active_record/relation/finder_methods.rb b/activerecord/lib/active_record/relation/finder_methods.rb index ff06ecbee1..5f959af5dc 100644 --- a/activerecord/lib/active_record/relation/finder_methods.rb +++ b/activerecord/lib/active_record/relation/finder_methods.rb @@ -148,7 +148,7 @@ module ActiveRecord # # [#<Person id:4>, #<Person id:3>, #<Person id:2>] def last(limit = nil) - return find_last(limit) if loaded? || limit_value + return find_last(limit) if loaded? || has_limit_or_offset? result = ordered_relation.limit(limit) result = result.reverse_order! @@ -313,7 +313,7 @@ module ActiveRecord return false if !conditions || limit_value == 0 if eager_loading? - relation = apply_join_dependency(construct_join_dependency(eager_loading: false)) + relation = apply_join_dependency(eager_loading: false) return relation.exists?(conditions) end @@ -358,24 +358,6 @@ module ActiveRecord offset_value || 0 end - def find_with_associations - # NOTE: the JoinDependency constructed here needs to know about - # any joins already present in `self`, so pass them in - # - # failing to do so means that in cases like activerecord/test/cases/associations/inner_join_association_test.rb:136 - # incorrect SQL is generated. In that case, the join dependency for - # SpecialCategorizations is constructed without knowledge of the - # preexisting join in joins_values to categorizations (by way of - # the `has_many :through` for categories). - # - join_dependency = construct_join_dependency - - relation = apply_join_dependency(join_dependency) - relation._select!(join_dependency.aliases.columns) - - yield relation, join_dependency - end - def construct_relation_for_exists(conditions) relation = except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1) @@ -391,22 +373,29 @@ module ActiveRecord def construct_join_dependency(eager_loading: true) including = eager_load_values + includes_values + joins = joins_values.select { |join| join.is_a?(Arel::Nodes::Join) } ActiveRecord::Associations::JoinDependency.new( - klass, table, including, alias_tracker(joins_values), eager_loading: eager_loading + klass, table, including, alias_tracker(joins), eager_loading: eager_loading ) end - def apply_join_dependency(join_dependency = construct_join_dependency) + def apply_join_dependency(eager_loading: true) + join_dependency = construct_join_dependency(eager_loading: eager_loading) relation = except(:includes, :eager_load, :preload).joins!(join_dependency) - if using_limitable_reflections?(join_dependency.reflections) - relation - else - if relation.limit_value + if eager_loading && !using_limitable_reflections?(join_dependency.reflections) + if has_limit_or_offset? limited_ids = limited_ids_for(relation) limited_ids.empty? ? relation.none! : relation.where!(primary_key => limited_ids) end - relation.except(:limit, :offset) + relation.limit_value = relation.offset_value = nil + end + + if block_given? + relation._select!(join_dependency.aliases.columns) + yield relation, join_dependency + else + relation end end @@ -532,7 +521,11 @@ module ActiveRecord else relation = ordered_relation - if limit_value.nil? || index < limit_value + if limit_value + limit = [limit_value - index, limit].min + end + + if limit > 0 relation = relation.offset(offset_index + index) unless index.zero? relation.limit(limit).to_a else @@ -547,12 +540,11 @@ module ActiveRecord else relation = ordered_relation - relation.to_a[-index] - # TODO: can be made more performant on large result sets by - # for instance, last(index)[-index] (which would require - # refactoring the last(n) finder method to make test suite pass), - # or by using a combination of reverse_order, limit, and offset, - # e.g., reverse_order.offset(index-1).first + if equal?(relation) || has_limit_or_offset? + relation.records[-index] + else + relation.last(index)[-index] + end end end diff --git a/activerecord/lib/active_record/relation/merger.rb b/activerecord/lib/active_record/relation/merger.rb index b736b21525..ebdd4144bb 100644 --- a/activerecord/lib/active_record/relation/merger.rb +++ b/activerecord/lib/active_record/relation/merger.rb @@ -52,7 +52,7 @@ module ActiveRecord NORMAL_VALUES = Relation::VALUE_METHODS - Relation::CLAUSE_METHODS - - [:includes, :preload, :joins, :order, :reverse_order, :lock, :create_with, :reordering] # :nodoc: + [:includes, :preload, :joins, :left_outer_joins, :order, :reverse_order, :lock, :create_with, :reordering] # :nodoc: def normal_values NORMAL_VALUES @@ -79,6 +79,7 @@ module ActiveRecord merge_clauses merge_preloads merge_joins + merge_outer_joins relation end @@ -129,6 +130,29 @@ module ActiveRecord end end + def merge_outer_joins + return if other.left_outer_joins_values.blank? + + if other.klass == relation.klass + relation.left_outer_joins!(*other.left_outer_joins_values) + else + alias_tracker = nil + joins_dependency = other.left_outer_joins_values.map do |join| + case join + when Hash, Symbol, Array + alias_tracker ||= other.alias_tracker + ActiveRecord::Associations::JoinDependency.new( + other.klass, other.table, join, alias_tracker + ) + else + join + end + end + + relation.left_outer_joins!(*joins_dependency) + end + end + def merge_multi_values if other.reordering_value # override any order specified in the original relation diff --git a/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb index 0255a65bfe..28c7483c95 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/association_query_value.rb @@ -30,7 +30,7 @@ module ActiveRecord end def primary_key - associated_table.association_join_keys.key + associated_table.association_join_primary_key end def convert_to_id(value) diff --git a/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb index b87b5c36dd..e8e2f2c626 100644 --- a/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb +++ b/activerecord/lib/active_record/relation/predicate_builder/polymorphic_array_value.rb @@ -29,7 +29,7 @@ module ActiveRecord end def primary_key(value) - associated_table.association_primary_key(base_class(value)) + associated_table.association_join_primary_key(base_class(value)) end def base_class(value) diff --git a/activerecord/lib/active_record/relation/query_methods.rb b/activerecord/lib/active_record/relation/query_methods.rb index 749223422f..86882c7ce7 100644 --- a/activerecord/lib/active_record/relation/query_methods.rb +++ b/activerecord/lib/active_record/relation/query_methods.rb @@ -327,8 +327,8 @@ module ActiveRecord end VALID_UNSCOPING_VALUES = Set.new([:where, :select, :group, :order, :lock, - :limit, :offset, :joins, :includes, :from, - :readonly, :having]) + :limit, :offset, :joins, :left_outer_joins, + :includes, :from, :readonly, :having]) # Removes an unwanted relation that is already defined on a chain of relations. # This is useful when passing around chains of relations and would like to @@ -375,10 +375,11 @@ module ActiveRecord args.each do |scope| case scope when Symbol + scope = :left_outer_joins if scope == :left_joins if !VALID_UNSCOPING_VALUES.include?(scope) raise ArgumentError, "Called unscope() with invalid unscoping argument ':#{scope}'. Valid arguments are :#{VALID_UNSCOPING_VALUES.to_a.join(", :")}." end - set_value(scope, nil) + set_value(scope, DEFAULT_VALUES[scope]) when Hash scope.each do |key, target_value| if key != :where @@ -444,15 +445,13 @@ module ActiveRecord # def left_outer_joins(*args) check_if_method_has_arguments!(__callee__, args) - - args.compact! - args.flatten! - spawn.left_outer_joins!(*args) end alias :left_joins :left_outer_joins def left_outer_joins!(*args) # :nodoc: + args.compact! + args.flatten! self.left_outer_joins_values += args self end @@ -907,7 +906,7 @@ module ActiveRecord protected # Returns a relation value with a given name def get_value(name) # :nodoc: - @values[name] || default_value_for(name) + @values.fetch(name, DEFAULT_VALUES[name]) end # Sets the relation value with the given name @@ -980,6 +979,8 @@ module ActiveRecord case join when Hash, Symbol, Array :association_join + when ActiveRecord::Associations::JoinDependency + :stashed_join else raise ArgumentError, "only Hash, Symbol and Array are allowed" end @@ -1015,7 +1016,7 @@ module ActiveRecord join_nodes = buckets[:join_node].uniq string_joins = buckets[:string_join].map(&:strip).uniq - join_list = join_nodes + convert_join_strings_to_ast(manager, string_joins) + join_list = join_nodes + convert_join_strings_to_ast(string_joins) alias_tracker = alias_tracker(join_list, aliases) join_dependency = ActiveRecord::Associations::JoinDependency.new( @@ -1030,7 +1031,7 @@ module ActiveRecord alias_tracker.aliases end - def convert_join_strings_to_ast(table, joins) + def convert_join_strings_to_ast(joins) joins .flatten .reject(&:blank?) @@ -1040,8 +1041,8 @@ 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)) + elsif klass.ignored_columns.any? + arel.project(*klass.column_names.map { |field| arel_attribute(field) }) else arel.project(table[Arel.star]) end @@ -1121,7 +1122,7 @@ module ActiveRecord def preprocess_order_args(order_args) order_args.map! do |arg| - klass.send(:sanitize_sql_for_order, arg) + klass.sanitize_sql_for_order(arg) end order_args.flatten! @@ -1192,7 +1193,6 @@ module ActiveRecord DEFAULT_VALUES = { create_with: FROZEN_EMPTY_HASH, - readonly: false, where: Relation::WhereClause.empty, having: Relation::WhereClause.empty, from: Relation::FromClause.empty @@ -1201,15 +1201,5 @@ module ActiveRecord Relation::MULTI_VALUE_METHODS.each do |value| DEFAULT_VALUES[value] ||= FROZEN_EMPTY_ARRAY end - - Relation::SINGLE_VALUE_METHODS.each do |value| - DEFAULT_VALUES[value] = nil if DEFAULT_VALUES[value].nil? - end - - def default_value_for(name) - DEFAULT_VALUES.fetch(name) do - raise ArgumentError, "unknown relation value #{name.inspect}" - end - end end end diff --git a/activerecord/lib/active_record/relation/where_clause_factory.rb b/activerecord/lib/active_record/relation/where_clause_factory.rb index 1374785354..4ae94f4bfe 100644 --- a/activerecord/lib/active_record/relation/where_clause_factory.rb +++ b/activerecord/lib/active_record/relation/where_clause_factory.rb @@ -11,7 +11,7 @@ module ActiveRecord def build(opts, other) case opts when String, Array - parts = [klass.send(:sanitize_sql, other.empty? ? opts : ([opts] + other))] + parts = [klass.sanitize_sql(other.empty? ? opts : ([opts] + other))] when Hash attributes = predicate_builder.resolve_column_aliases(opts) attributes = klass.send(:expand_hash_conditions_for_aggregates, attributes) diff --git a/activerecord/lib/active_record/sanitization.rb b/activerecord/lib/active_record/sanitization.rb index 21f8bc7cb2..58da106092 100644 --- a/activerecord/lib/active_record/sanitization.rb +++ b/activerecord/lib/active_record/sanitization.rb @@ -5,80 +5,135 @@ module ActiveRecord extend ActiveSupport::Concern module ClassMethods - private - - # Accepts an array or string of SQL conditions and sanitizes - # them into a valid SQL fragment for a WHERE clause. - # - # sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_for_conditions(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) - # # => "name='foo''bar' and group_id='4'" - # - # sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4]) - # # => "name='foo''bar' and group_id='4'" - # - # sanitize_sql_for_conditions("name='foo''bar' and group_id='4'") - # # => "name='foo''bar' and group_id='4'" - def sanitize_sql_for_conditions(condition) # :doc: - return nil if condition.blank? - - case condition - when Array; sanitize_sql_array(condition) - else condition - end + # Accepts an array or string of SQL conditions and sanitizes + # them into a valid SQL fragment for a WHERE clause. + # + # sanitize_sql_for_conditions(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_for_conditions(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) + # # => "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" + # + # sanitize_sql_for_conditions("name='foo''bar' and group_id='4'") + # # => "name='foo''bar' and group_id='4'" + def sanitize_sql_for_conditions(condition) + return nil if condition.blank? + + case condition + when Array; sanitize_sql_array(condition) + else condition end - alias :sanitize_sql :sanitize_sql_for_conditions - - # Accepts an array, hash, or string of SQL conditions and sanitizes - # them into a valid SQL fragment for a SET clause. - # - # sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4]) - # # => "name=NULL and group_id=4" - # - # sanitize_sql_for_assignment(["name=:name and group_id=:group_id", name: nil, group_id: 4]) - # # => "name=NULL and group_id=4" - # - # Post.send(:sanitize_sql_for_assignment, { name: nil, group_id: 4 }) - # # => "`posts`.`name` = NULL, `posts`.`group_id` = 4" - # - # sanitize_sql_for_assignment("name=NULL and group_id='4'") - # # => "name=NULL and group_id='4'" - def sanitize_sql_for_assignment(assignments, default_table_name = table_name) # :doc: - case assignments - when Array; sanitize_sql_array(assignments) - when Hash; sanitize_sql_hash_for_assignment(assignments, default_table_name) - else assignments - end + end + alias :sanitize_sql :sanitize_sql_for_conditions + + # Accepts an array, hash, or string of SQL conditions and sanitizes + # them into a valid SQL fragment for a SET clause. + # + # sanitize_sql_for_assignment(["name=? and group_id=?", nil, 4]) + # # => "name=NULL and group_id=4" + # + # sanitize_sql_for_assignment(["name=:name and group_id=:group_id", name: nil, group_id: 4]) + # # => "name=NULL and group_id=4" + # + # Post.sanitize_sql_for_assignment({ name: nil, group_id: 4 }) + # # => "`posts`.`name` = NULL, `posts`.`group_id` = 4" + # + # sanitize_sql_for_assignment("name=NULL and group_id='4'") + # # => "name=NULL and group_id='4'" + def sanitize_sql_for_assignment(assignments, default_table_name = table_name) + case assignments + when Array; sanitize_sql_array(assignments) + when Hash; sanitize_sql_hash_for_assignment(assignments, default_table_name) + else assignments end - - # Accepts an array, or string of SQL conditions and sanitizes - # them into a valid SQL fragment for an ORDER clause. - # - # sanitize_sql_for_order(["field(id, ?)", [1,3,2]]) - # # => "field(id, 1,3,2)" - # - # sanitize_sql_for_order("id ASC") - # # => "id ASC" - def sanitize_sql_for_order(condition) # :doc: - if condition.is_a?(Array) && condition.first.to_s.include?("?") - 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 + + # Accepts an array, or string of SQL conditions and sanitizes + # them into a valid SQL fragment for an ORDER clause. + # + # sanitize_sql_for_order(["field(id, ?)", [1,3,2]]) + # # => "field(id, 1,3,2)" + # + # sanitize_sql_for_order("id ASC") + # # => "id ASC" + def sanitize_sql_for_order(condition) + if condition.is_a?(Array) && condition.first.to_s.include?("?") + 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 + end + + # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause. + # + # sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts") + # # => "`posts`.`status` = NULL, `posts`.`group_id` = 1" + def sanitize_sql_hash_for_assignment(attrs, table) + c = connection + attrs.map do |attr, 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 + + # Sanitizes a +string+ so that it is safe to use within an SQL + # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%". + # + # sanitize_sql_like("100%") + # # => "100\\%" + # + # sanitize_sql_like("snake_cased_string") + # # => "snake\\_cased\\_string" + # + # sanitize_sql_like("100%", "!") + # # => "100!%" + # + # sanitize_sql_like("snake_cased_string", "!") + # # => "snake!_cased!_string" + def sanitize_sql_like(string, escape_character = "\\") + pattern = Regexp.union(escape_character, "%", "_") + string.gsub(pattern) { |x| [escape_character, x].join } + end + + # Accepts an array of conditions. The array has each value + # sanitized and interpolated into the SQL statement. + # + # sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_array(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) + # # => "name='foo''bar' and group_id=4" + # + # sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4]) + # # => "name='foo''bar' and group_id='4'" + def sanitize_sql_array(ary) + statement, *values = ary + if values.first.is_a?(Hash) && /:\w+/.match?(statement) + replace_named_bind_variables(statement, values.first) + elsif statement.include?("?") + replace_bind_variables(statement, values) + elsif statement.blank? + statement + else + statement % values.collect { |value| connection.quote_string(value.to_s) } + end + end + private # Accepts a hash of SQL conditions and replaces those attributes # that correspond to a {#composed_of}[rdoc-ref:Aggregations::ClassMethods#composed_of] # relationship with their expanded aggregate attribute values. @@ -113,62 +168,6 @@ module ActiveRecord expanded_attrs end - # Sanitizes a hash of attribute/value pairs into SQL conditions for a SET clause. - # - # sanitize_sql_hash_for_assignment({ status: nil, group_id: 1 }, "posts") - # # => "`posts`.`status` = NULL, `posts`.`group_id` = 1" - def sanitize_sql_hash_for_assignment(attrs, table) # :doc: - c = connection - attrs.map do |attr, 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 - - # Sanitizes a +string+ so that it is safe to use within an SQL - # LIKE statement. This method uses +escape_character+ to escape all occurrences of "\", "_" and "%". - # - # sanitize_sql_like("100%") - # # => "100\\%" - # - # sanitize_sql_like("snake_cased_string") - # # => "snake\\_cased\\_string" - # - # sanitize_sql_like("100%", "!") - # # => "100!%" - # - # sanitize_sql_like("snake_cased_string", "!") - # # => "snake!_cased!_string" - def sanitize_sql_like(string, escape_character = "\\") # :doc: - pattern = Regexp.union(escape_character, "%", "_") - string.gsub(pattern) { |x| [escape_character, x].join } - end - - # Accepts an array of conditions. The array has each value - # sanitized and interpolated into the SQL statement. - # - # sanitize_sql_array(["name=? and group_id=?", "foo'bar", 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_array(["name=:name and group_id=:group_id", name: "foo'bar", group_id: 4]) - # # => "name='foo''bar' and group_id=4" - # - # sanitize_sql_array(["name='%s' and group_id='%s'", "foo'bar", 4]) - # # => "name='foo''bar' and group_id='4'" - def sanitize_sql_array(ary) # :doc: - statement, *values = ary - if values.first.is_a?(Hash) && /:\w+/.match?(statement) - replace_named_bind_variables(statement, values.first) - elsif statement.include?("?") - replace_bind_variables(statement, values) - elsif statement.blank? - statement - else - statement % values.collect { |value| connection.quote_string(value.to_s) } - end - end - def replace_bind_variables(statement, values) raise_if_bind_arity_mismatch(statement, statement.count("?"), values.size) bound = values.dup diff --git a/activerecord/lib/active_record/schema.rb b/activerecord/lib/active_record/schema.rb index 1e121f2a09..216359867c 100644 --- a/activerecord/lib/active_record/schema.rb +++ b/activerecord/lib/active_record/schema.rb @@ -55,7 +55,7 @@ module ActiveRecord end ActiveRecord::InternalMetadata.create_table - ActiveRecord::InternalMetadata[:environment] = ActiveRecord::Migrator.current_environment + ActiveRecord::InternalMetadata[:environment] = connection.migration_context.current_environment end private diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb index 16ccba6b6c..b8d848b999 100644 --- a/activerecord/lib/active_record/schema_dumper.rb +++ b/activerecord/lib/active_record/schema_dumper.rb @@ -44,7 +44,7 @@ module ActiveRecord def initialize(connection, options = {}) @connection = connection - @version = Migrator::current_version rescue nil + @version = connection.migration_context.current_version rescue nil @options = options end diff --git a/activerecord/lib/active_record/table_metadata.rb b/activerecord/lib/active_record/table_metadata.rb index a5187efc84..0459cbdc59 100644 --- a/activerecord/lib/active_record/table_metadata.rb +++ b/activerecord/lib/active_record/table_metadata.rb @@ -2,8 +2,7 @@ module ActiveRecord class TableMetadata # :nodoc: - delegate :foreign_type, :foreign_key, :join_keys, :join_foreign_key, to: :association, prefix: true - delegate :association_primary_key, to: :association + delegate :foreign_type, :foreign_key, :join_primary_key, :join_foreign_key, to: :association, prefix: true def initialize(klass, arel_table, association = nil) @klass = klass diff --git a/activerecord/lib/active_record/tasks/database_tasks.rb b/activerecord/lib/active_record/tasks/database_tasks.rb index 4657e51e6d..ed589f9b43 100644 --- a/activerecord/lib/active_record/tasks/database_tasks.rb +++ b/activerecord/lib/active_record/tasks/database_tasks.rb @@ -54,10 +54,10 @@ module ActiveRecord def check_protected_environments! unless ENV["DISABLE_DATABASE_ENVIRONMENT_CHECK"] - current = ActiveRecord::Migrator.current_environment - stored = ActiveRecord::Migrator.last_stored_environment + current = ActiveRecord::Base.connection.migration_context.current_environment + stored = ActiveRecord::Base.connection.migration_context.last_stored_environment - if ActiveRecord::Migrator.protected_environment? + if ActiveRecord::Base.connection.migration_context.protected_environment? raise ActiveRecord::ProtectedEnvironmentError.new(stored) end @@ -169,7 +169,7 @@ module ActiveRecord verbose = ENV["VERBOSE"] ? ENV["VERBOSE"] != "false" : true scope = ENV["SCOPE"] verbose_was, Migration.verbose = Migration.verbose, verbose - Migrator.migrate(migrations_paths, target_version) do |migration| + Base.connection.migration_context.migrate(target_version) do |migration| scope.blank? || scope == migration.scope end ActiveRecord::Base.clear_cache! |