diff options
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/CHANGELOG.md | 12 | ||||
| -rw-r--r-- | activerecord/lib/active_record/associations/preloader.rb | 25 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb | 2 | ||||
| -rw-r--r-- | activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb | 2 | ||||
| -rw-r--r-- | activerecord/lib/active_record/persistence.rb | 2 | ||||
| -rw-r--r-- | activerecord/lib/active_record/relation.rb | 37 | ||||
| -rw-r--r-- | activerecord/lib/active_record/timestamp.rb | 20 | ||||
| -rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 29 | ||||
| -rw-r--r-- | activerecord/test/cases/relations_test.rb | 47 | ||||
| -rw-r--r-- | activerecord/test/fixtures/sponsors.yml | 3 |
10 files changed, 155 insertions, 24 deletions
diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md index d8bf7df63b..0d8fa48235 100644 --- a/activerecord/CHANGELOG.md +++ b/activerecord/CHANGELOG.md @@ -1,3 +1,15 @@ +* Add support to preload associations of polymorphic associations when not all the records have the requested associations. + + *Dana Sherson* + +* Add `touch_all` method to `ActiveRecord::Relation`. + + Example: + + Person.where(name: "David").touch_all(time: Time.new(2020, 5, 16, 0, 0, 0)) + + *fatkodima*, *duggiefresh* + * Add `ActiveRecord::Base.base_class?` predicate. *Bogdan Gusiev* diff --git a/activerecord/lib/active_record/associations/preloader.rb b/activerecord/lib/active_record/associations/preloader.rb index 1ea0aeac3a..5c2ac5b374 100644 --- a/activerecord/lib/active_record/associations/preloader.rb +++ b/activerecord/lib/active_record/associations/preloader.rb @@ -98,26 +98,30 @@ module ActiveRecord private # Loads all the given data into +records+ for the +association+. - def preloaders_on(association, records, scope) + def preloaders_on(association, records, scope, polymorphic_parent = false) case association when Hash - preloaders_for_hash(association, records, scope) + preloaders_for_hash(association, records, scope, polymorphic_parent) when Symbol - preloaders_for_one(association, records, scope) + preloaders_for_one(association, records, scope, polymorphic_parent) when String - preloaders_for_one(association.to_sym, records, scope) + preloaders_for_one(association.to_sym, records, scope, polymorphic_parent) else raise ArgumentError, "#{association.inspect} was not recognized for preload" end end - def preloaders_for_hash(association, records, scope) + def preloaders_for_hash(association, records, scope, polymorphic_parent) association.flat_map { |parent, child| - loaders = preloaders_for_one parent, records, scope + loaders = preloaders_for_one parent, records, scope, polymorphic_parent recs = loaders.flat_map(&:preloaded_records).uniq + + reflection = records.first.class._reflect_on_association(parent) + polymorphic_parent = reflection && reflection.options[:polymorphic] + loaders.concat Array.wrap(child).flat_map { |assoc| - preloaders_on assoc, recs, scope + preloaders_on assoc, recs, scope, polymorphic_parent } loaders } @@ -135,8 +139,8 @@ module ActiveRecord # Additionally, polymorphic belongs_to associations can have multiple associated # classes, depending on the polymorphic_type field. So we group by the classes as # well. - def preloaders_for_one(association, records, scope) - grouped_records(association, records).flat_map do |reflection, klasses| + def preloaders_for_one(association, records, scope, polymorphic_parent) + grouped_records(association, records, polymorphic_parent).flat_map do |reflection, klasses| klasses.map do |rhs_klass, rs| loader = preloader_for(reflection, rs).new(rhs_klass, rs, reflection, scope) loader.run self @@ -145,10 +149,11 @@ module ActiveRecord end end - def grouped_records(association, records) + def grouped_records(association, records, polymorphic_parent) h = {} records.each do |record| next unless record + next if polymorphic_parent && !record.class._reflect_on_association(association) assoc = record.association(association) next unless assoc.klass klasses = h[assoc.reflection] ||= {} diff --git a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb index 08f3e15a4b..41553cfa83 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb @@ -385,7 +385,7 @@ module ActiveRecord end end - def empty_insert_statement_value + def empty_insert_statement_value(primary_key = nil) "DEFAULT VALUES" end 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 fbedddd7f9..477b09944f 100644 --- a/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb +++ b/activerecord/lib/active_record/connection_adapters/abstract_mysql_adapter.rb @@ -223,7 +223,7 @@ module ActiveRecord end end - def empty_insert_statement_value + def empty_insert_statement_value(primary_key = nil) "VALUES ()" end diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb index 7721e6b691..c2393c1fc8 100644 --- a/activerecord/lib/active_record/persistence.rb +++ b/activerecord/lib/active_record/persistence.rb @@ -178,7 +178,7 @@ module ActiveRecord end if values.empty? - im = arel_table.compile_insert(connection.empty_insert_statement_value) + im = arel_table.compile_insert(connection.empty_insert_statement_value(primary_key)) im.into arel_table else im = arel_table.compile_insert(_substitute_values(values)) diff --git a/activerecord/lib/active_record/relation.rb b/activerecord/lib/active_record/relation.rb index 24b9bab0cd..c29f7e7115 100644 --- a/activerecord/lib/active_record/relation.rb +++ b/activerecord/lib/active_record/relation.rb @@ -369,6 +369,43 @@ module ActiveRecord @klass.connection.update stmt, "#{@klass} Update All" end + # Touches all records in the current relation without instantiating records first with the updated_at/on attributes + # set to the current time or the time specified. + # This method can be passed attribute names and an optional time argument. + # If attribute names are passed, they are updated along with updated_at/on attributes. + # If no time argument is passed, the current time is used as default. + # + # === Examples + # + # # Touch all records + # Person.all.touch + # # => "UPDATE \"people\" SET \"updated_at\" = '2018-01-04 22:55:23.132670'" + # + # # Touch multiple records with a custom attribute + # Person.all.touch(:created_at) + # # => "UPDATE \"people\" SET \"updated_at\" = '2018-01-04 22:55:23.132670', \"created_at\" = '2018-01-04 22:55:23.132670'" + # + # # Touch multiple records with a specified time + # Person.all.touch(time: Time.new(2020, 5, 16, 0, 0, 0)) + # # => "UPDATE \"people\" SET \"updated_at\" = '2020-05-16 00:00:00'" + # + # # Touch records with scope + # Person.where(name: 'David').touch + # # => "UPDATE \"people\" SET \"updated_at\" = '2018-01-04 22:55:23.132670' WHERE \"people\".\"name\" = 'David'" + def touch_all(*names, time: nil) + attributes = Array(names) + klass.timestamp_attributes_for_update_in_model + time ||= klass.current_time_from_proper_timezone + updates = {} + attributes.each { |column| updates[column] = time } + + if klass.locking_enabled? + quoted_locking_column = connection.quote_column_name(klass.locking_column) + updates = sanitize_sql_for_assignment(updates) + ", #{quoted_locking_column} = COALESCE(#{quoted_locking_column}, 0) + 1" + end + + update_all(updates) + end + # Destroys the records by instantiating each # record and calling its {#destroy}[rdoc-ref:Persistence#destroy] method. # Each object's callbacks are executed (including <tt>:dependent</tt> association options). diff --git a/activerecord/lib/active_record/timestamp.rb b/activerecord/lib/active_record/timestamp.rb index 54aa7aca2c..e47f06bf3a 100644 --- a/activerecord/lib/active_record/timestamp.rb +++ b/activerecord/lib/active_record/timestamp.rb @@ -53,15 +53,19 @@ module ActiveRecord end module ClassMethods # :nodoc: + def timestamp_attributes_for_update_in_model + timestamp_attributes_for_update.select { |c| column_names.include?(c) } + end + + def current_time_from_proper_timezone + default_timezone == :utc ? Time.now.utc : Time.now + end + private def timestamp_attributes_for_create_in_model timestamp_attributes_for_create.select { |c| column_names.include?(c) } end - def timestamp_attributes_for_update_in_model - timestamp_attributes_for_update.select { |c| column_names.include?(c) } - end - def all_timestamp_attributes_in_model timestamp_attributes_for_create_in_model + timestamp_attributes_for_update_in_model end @@ -73,10 +77,6 @@ module ActiveRecord def timestamp_attributes_for_update ["updated_at", "updated_on"] end - - def current_time_from_proper_timezone - default_timezone == :utc ? Time.now.utc : Time.now - end end private @@ -116,7 +116,7 @@ module ActiveRecord end def timestamp_attributes_for_update_in_model - self.class.send(:timestamp_attributes_for_update_in_model) + self.class.timestamp_attributes_for_update_in_model end def all_timestamp_attributes_in_model @@ -124,7 +124,7 @@ module ActiveRecord end def current_time_from_proper_timezone - self.class.send(:current_time_from_proper_timezone) + self.class.current_time_from_proper_timezone end def max_updated_column_timestamp(timestamp_names = timestamp_attributes_for_update_in_model) diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index 6e0cf30092..f46be8734b 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -1515,6 +1515,35 @@ class EagerAssociationTest < ActiveRecord::TestCase Author.preload(:readonly_comments).first! end + test "preloading through a polymorphic association doesn't require the association to exist" do + sponsors = [] + assert_queries 5 do + sponsors = Sponsor.where(sponsorable_id: 1).preload(sponsorable: [:post, :membership]).to_a + end + # check the preload worked + assert_queries 0 do + sponsors.map(&:sponsorable).map { |s| s.respond_to?(:posts) ? s.post.author : s.membership } + end + end + + test "preloading a regular association through a polymorphic association doesn't require the association to exist on all types" do + sponsors = [] + assert_queries 6 do + sponsors = Sponsor.where(sponsorable_id: 1).preload(sponsorable: [{ post: :first_comment }, :membership]).to_a + end + # check the preload worked + assert_queries 0 do + sponsors.map(&:sponsorable).map { |s| s.respond_to?(:posts) ? s.post.author : s.membership } + end + end + + test "preloading a regular association with a typo through a polymorphic association still raises" do + # this test contains an intentional typo of first -> fist + assert_raises(ActiveRecord::AssociationNotFoundError) do + Sponsor.where(sponsorable_id: 1).preload(sponsorable: [{ post: :fist_comment }, :membership]).to_a + end + end + private def find_all_ordered(klass, include = nil) klass.order("#{klass.table_name}.#{klass.primary_key}").includes(include).to_a diff --git a/activerecord/test/cases/relations_test.rb b/activerecord/test/cases/relations_test.rb index 63edd82f7f..952d2dd5d9 100644 --- a/activerecord/test/cases/relations_test.rb +++ b/activerecord/test/cases/relations_test.rb @@ -9,6 +9,7 @@ require "models/comment" require "models/author" require "models/entrant" require "models/developer" +require "models/person" require "models/computer" require "models/reply" require "models/company" @@ -25,7 +26,7 @@ require "models/edge" require "models/subscriber" class RelationTest < ActiveRecord::TestCase - fixtures :authors, :author_addresses, :topics, :entrants, :developers, :companies, :developers_projects, :accounts, :categories, :categorizations, :categories_posts, :posts, :comments, :tags, :taggings, :cars, :minivans + fixtures :authors, :author_addresses, :topics, :entrants, :developers, :people, :companies, :developers_projects, :accounts, :categories, :categorizations, :categories_posts, :posts, :comments, :tags, :taggings, :cars, :minivans class TopicWithCallbacks < ActiveRecord::Base self.table_name = :topics @@ -1525,6 +1526,50 @@ class RelationTest < ActiveRecord::TestCase assert_equal posts(:welcome), comments(:greetings).post end + def test_touch_all_updates_records_timestamps + david = developers(:david) + david_previously_updated_at = david.updated_at + jamis = developers(:jamis) + jamis_previously_updated_at = jamis.updated_at + Developer.where(name: "David").touch_all + + assert_not_equal david_previously_updated_at, david.reload.updated_at + assert_equal jamis_previously_updated_at, jamis.reload.updated_at + end + + def test_touch_all_with_custom_timestamp + developer = developers(:david) + previously_created_at = developer.created_at + previously_updated_at = developer.updated_at + Developer.where(name: "David").touch_all(:created_at) + developer = developer.reload + + assert_not_equal previously_created_at, developer.created_at + assert_not_equal previously_updated_at, developer.updated_at + end + + def test_touch_all_with_given_time + developer = developers(:david) + previously_created_at = developer.created_at + previously_updated_at = developer.updated_at + new_time = Time.utc(2015, 2, 16, 4, 54, 0) + Developer.where(name: "David").touch_all(:created_at, time: new_time) + developer = developer.reload + + assert_not_equal previously_created_at, developer.created_at + assert_not_equal previously_updated_at, developer.updated_at + assert_equal new_time, developer.created_at + assert_equal new_time, developer.updated_at + end + + def test_touch_all_updates_locking_column + person = people(:david) + + assert_difference -> { person.reload.lock_version }, +1 do + Person.where(first_name: "David").touch_all + end + end + def test_update_on_relation topic1 = TopicWithCallbacks.create! title: "arel", author_name: nil topic2 = TopicWithCallbacks.create! title: "activerecord", author_name: nil diff --git a/activerecord/test/fixtures/sponsors.yml b/activerecord/test/fixtures/sponsors.yml index 2da541c539..02ddb8dd38 100644 --- a/activerecord/test/fixtures/sponsors.yml +++ b/activerecord/test/fixtures/sponsors.yml @@ -10,3 +10,6 @@ crazy_club_sponsor_for_groucho: sponsor_club: crazy_club sponsorable_id: 3 sponsorable_type: Member +sponsor_for_author_david: + sponsorable_id: 1 + sponsorable_type: Author |