diff options
Diffstat (limited to 'activerecord/test/cases/associations/eager_test.rb')
| -rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 233 |
1 files changed, 190 insertions, 43 deletions
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index 498a4e8144..371635d20a 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -17,6 +17,7 @@ require 'models/subscriber' require 'models/subscription' require 'models/book' require 'models/developer' +require 'models/computer' require 'models/project' require 'models/member' require 'models/membership' @@ -235,6 +236,17 @@ class EagerAssociationTest < ActiveRecord::TestCase end end + def test_finding_with_includes_on_empty_polymorphic_type_column + sponsor = sponsors(:moustache_club_sponsor_for_groucho) + sponsor.update!(sponsorable_type: '', sponsorable_id: nil) # sponsorable_type column might be declared NOT NULL + sponsor = assert_queries(1) do + assert_nothing_raised { Sponsor.all.merge!(:includes => :sponsorable).find(sponsor.id) } + end + assert_no_queries do + assert_equal nil, sponsor.sponsorable + end + end + def test_loading_from_an_association posts = authors(:david).posts.merge(:includes => :comments, :order => "posts.id").to_a assert_equal 2, posts.first.comments.size @@ -258,6 +270,14 @@ class EagerAssociationTest < ActiveRecord::TestCase end end + def test_three_level_nested_preloading_does_not_raise_exception_when_association_does_not_exist + post_id = Comment.where(author_id: nil).where.not(post_id: nil).first.post_id + + assert_nothing_raised do + Post.preload(:comments => [{:author => :essays}]).find(post_id) + end + end + def test_nested_loading_through_has_one_association aa = AuthorAddress.all.merge!(:includes => {:author => :posts}).find(author_addresses(:david_address).id) assert_equal aa.author.posts.count, aa.author.posts.length @@ -318,31 +338,31 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_eager_association_loading_with_belongs_to_and_limit comments = Comment.all.merge!(:includes => :post, :limit => 5, :order => 'comments.id').to_a assert_equal 5, comments.length - assert_equal [1,2,3,5,6], comments.collect { |c| c.id } + assert_equal [1,2,3,5,6], comments.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_limit_and_conditions comments = Comment.all.merge!(:includes => :post, :where => 'post_id = 4', :limit => 3, :order => 'comments.id').to_a assert_equal 3, comments.length - assert_equal [5,6,7], comments.collect { |c| c.id } + assert_equal [5,6,7], comments.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_limit_and_offset comments = Comment.all.merge!(:includes => :post, :limit => 3, :offset => 2, :order => 'comments.id').to_a assert_equal 3, comments.length - assert_equal [3,5,6], comments.collect { |c| c.id } + assert_equal [3,5,6], comments.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions comments = Comment.all.merge!(:includes => :post, :where => 'post_id = 4', :limit => 3, :offset => 1, :order => 'comments.id').to_a assert_equal 3, comments.length - assert_equal [6,7,8], comments.collect { |c| c.id } + assert_equal [6,7,8], comments.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions_array comments = Comment.all.merge!(:includes => :post, :where => ['post_id = ?',4], :limit => 3, :offset => 1, :order => 'comments.id').to_a assert_equal 3, comments.length - assert_equal [6,7,8], comments.collect { |c| c.id } + assert_equal [6,7,8], comments.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_conditions_string_with_unquoted_table_name @@ -357,7 +377,7 @@ class EagerAssociationTest < ActiveRecord::TestCase comments = Comment.all.merge!(:includes => :post, :where => {:posts => {:id => 4}}, :limit => 3, :order => 'comments.id').to_a end assert_equal 3, comments.length - assert_equal [5,6,7], comments.collect { |c| c.id } + assert_equal [5,6,7], comments.collect(&:id) assert_no_queries do comments.first.post end @@ -386,13 +406,13 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_eager_association_loading_with_belongs_to_and_limit_and_multiple_associations posts = Post.all.merge!(:includes => [:author, :very_special_comment], :limit => 1, :order => 'posts.id').to_a assert_equal 1, posts.length - assert_equal [1], posts.collect { |p| p.id } + assert_equal [1], posts.collect(&:id) end def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_multiple_associations posts = Post.all.merge!(:includes => [:author, :very_special_comment], :limit => 1, :offset => 1, :order => 'posts.id').to_a assert_equal 1, posts.length - assert_equal [2], posts.collect { |p| p.id } + assert_equal [2], posts.collect(&:id) end def test_eager_association_loading_with_belongs_to_inferred_foreign_key_from_association_name @@ -407,19 +427,19 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_load_has_one_quotes_table_and_column_names - michael = Person.all.merge!(:includes => :favourite_reference).find(people(:michael)) + michael = Person.all.merge!(:includes => :favourite_reference).find(people(:michael).id) references(:michael_unicyclist) assert_no_queries{ assert_equal references(:michael_unicyclist), michael.favourite_reference} end def test_eager_load_has_many_quotes_table_and_column_names - michael = Person.all.merge!(:includes => :references).find(people(:michael)) + michael = Person.all.merge!(:includes => :references).find(people(:michael).id) references(:michael_magician,:michael_unicyclist) assert_no_queries{ assert_equal references(:michael_magician,:michael_unicyclist), michael.references.sort_by(&:id) } end def test_eager_load_has_many_through_quotes_table_and_column_names - michael = Person.all.merge!(:includes => :jobs).find(people(:michael)) + michael = Person.all.merge!(:includes => :jobs).find(people(:michael).id) jobs(:magician, :unicyclist) assert_no_queries{ assert_equal jobs(:unicyclist, :magician), michael.jobs.sort_by(&:id) } end @@ -483,8 +503,8 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_with_has_many_through_an_sti_join_model_with_conditions_on_both - author = Author.all.merge!(:includes => :special_nonexistant_post_comments, :order => 'authors.id').first - assert_equal [], author.special_nonexistant_post_comments + author = Author.all.merge!(:includes => :special_nonexistent_post_comments, :order => 'authors.id').first + assert_equal [], author.special_nonexistent_post_comments end def test_eager_with_has_many_through_join_model_with_conditions @@ -523,23 +543,15 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_with_has_many_and_limit_and_conditions - if current_adapter?(:OpenBaseAdapter) - posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => "FETCHBLOB(posts.body) = 'hello'", :order => "posts.id").to_a - else - posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => "posts.body = 'hello'", :order => "posts.id").to_a - end + posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => "posts.body = 'hello'", :order => "posts.id").to_a assert_equal 2, posts.size - assert_equal [4,5], posts.collect { |p| p.id } + assert_equal [4,5], posts.collect(&:id) end def test_eager_with_has_many_and_limit_and_conditions_array - if current_adapter?(:OpenBaseAdapter) - posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => [ "FETCHBLOB(posts.body) = ?", 'hello' ], :order => "posts.id").to_a - else - posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => [ "posts.body = ?", 'hello' ], :order => "posts.id").to_a - end + posts = Post.all.merge!(:includes => [ :author, :comments ], :limit => 2, :where => [ "posts.body = ?", 'hello' ], :order => "posts.id").to_a assert_equal 2, posts.size - assert_equal [4,5], posts.collect { |p| p.id } + assert_equal [4,5], posts.collect(&:id) end def test_eager_with_has_many_and_limit_and_conditions_array_on_the_eagers @@ -709,16 +721,16 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_with_invalid_association_reference - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=> :monkeys ).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=>[ :monkeys ]).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { Post.all.merge!(:includes=>[ 'monkeys' ]).find(6) } - assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") { + assert_raise(ActiveRecord::AssociationNotFoundError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") { Post.all.merge!(:includes=>[ :monkeys, :elephants ]).find(6) } end @@ -814,14 +826,6 @@ class EagerAssociationTest < ActiveRecord::TestCase ) end - def test_preload_with_interpolation - post = Post.includes(:comments_with_interpolated_conditions).find(posts(:welcome).id) - assert_equal [comments(:greetings)], post.comments_with_interpolated_conditions - - post = Post.joins(:comments_with_interpolated_conditions).find(posts(:welcome).id) - assert_equal [comments(:greetings)], post.comments_with_interpolated_conditions - end - def test_polymorphic_type_condition post = Post.all.merge!(:includes => :taggings).find(posts(:thinking).id) assert post.taggings.include?(taggings(:thinking_general)) @@ -896,6 +900,12 @@ class EagerAssociationTest < ActiveRecord::TestCase assert_no_queries {assert_equal posts(:sti_comments), comment.post} end + def test_eager_association_with_scope_with_joins + assert_nothing_raised do + Post.includes(:very_special_comment_with_post_with_joins).to_a + end + end + def test_preconfigured_includes_with_has_many posts = authors(:david).posts_with_comments one = posts.detect { |p| p.id == 1 } @@ -925,13 +935,43 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_count_with_include - if current_adapter?(:SybaseAdapter) - assert_equal 3, authors(:david).posts_with_comments.where("len(comments.body) > 15").references(:comments).count - elsif current_adapter?(:OpenBaseAdapter) - assert_equal 3, authors(:david).posts_with_comments.where("length(FETCHBLOB(comments.body)) > 15").references(:comments).count - else - assert_equal 3, authors(:david).posts_with_comments.where("length(comments.body) > 15").references(:comments).count + assert_equal 3, authors(:david).posts_with_comments.where("length(comments.body) > 15").references(:comments).count + end + + def test_association_loading_notification + notifications = messages_for('instantiation.active_record') do + Developer.all.merge!(:includes => 'projects', :where => { 'developers_projects.access_level' => 1 }, :limit => 5).to_a.size + end + + message = notifications.first + payload = message.last + count = Developer.all.merge!(:includes => 'projects', :where => { 'developers_projects.access_level' => 1 }, :limit => 5).to_a.size + + # eagerloaded row count should be greater than just developer count + assert_operator payload[:record_count], :>, count + assert_equal Developer.name, payload[:class_name] + end + + def test_base_messages + notifications = messages_for('instantiation.active_record') do + Developer.all.to_a end + message = notifications.first + payload = message.last + + assert_equal Developer.all.to_a.count, payload[:record_count] + assert_equal Developer.name, payload[:class_name] + end + + def messages_for(name) + notifications = [] + ActiveSupport::Notifications.subscribe(name) do |*args| + notifications << args + end + yield + notifications + ensure + ActiveSupport::Notifications.unsubscribe(name) end def test_load_with_sti_sharing_association @@ -1166,6 +1206,13 @@ class EagerAssociationTest < ActiveRecord::TestCase ) end + test "deep preload" do + post = Post.preload(author: :posts, comments: :post).first + + assert_predicate post.author.association(:posts), :loaded? + assert_predicate post.comments.first.association(:post), :loaded? + end + test "preloading does not cache has many association subset when preloaded with a through association" do author = Author.includes(:comments_with_order_and_conditions, :posts).first assert_no_queries { assert_equal 2, author.comments_with_order_and_conditions.size } @@ -1187,6 +1234,23 @@ class EagerAssociationTest < ActiveRecord::TestCase assert_equal authors(:bob), author end + test "preloading with a polymorphic association and using the existential predicate but also using a select" do + assert_equal authors(:david), authors(:david).essays.includes(:writer).first.writer + + assert_nothing_raised do + authors(:david).essays.includes(:writer).select(:name).any? + end + end + + test "preloading the same association twice works" do + Member.create! + members = Member.preload(:current_membership).includes(current_membership: :club).all.to_a + assert_no_queries { + members_with_membership = members.select(&:current_membership) + assert_equal 3, members_with_membership.map(&:current_membership).map(&:club).size + } + end + test "preloading with a polymorphic association and using the existential predicate" do assert_equal authors(:david), authors(:david).essays.includes(:writer).first.writer @@ -1194,4 +1258,87 @@ class EagerAssociationTest < ActiveRecord::TestCase authors(:david).essays.includes(:writer).any? end end + + test "preloading associations with string joins and order references" do + author = assert_queries(2) { + Author.includes(:posts).joins("LEFT JOIN posts ON posts.author_id = authors.id").order("posts.title DESC").first + } + assert_no_queries { + assert_equal 5, author.posts.size + } + end + + test "including associations with where.not adds implicit references" do + author = assert_queries(2) { + Author.includes(:posts).where.not(posts: { title: 'Welcome to the weblog'} ).last + } + + assert_no_queries { + assert_equal 2, author.posts.size + } + end + + test "including association based on sql condition and no database column" do + assert_equal pets(:parrot), Owner.including_last_pet.first.last_pet + end + + test "preloading and eager loading of instance dependent associations is not supported" do + message = "association scope 'posts_with_signature' is" + error = assert_raises(ArgumentError) do + Author.includes(:posts_with_signature).to_a + end + assert_match message, error.message + + error = assert_raises(ArgumentError) do + Author.preload(:posts_with_signature).to_a + end + assert_match message, error.message + + error = assert_raises(ArgumentError) do + Author.eager_load(:posts_with_signature).to_a + end + assert_match message, error.message + end + + test "preloading readonly association" do + # has-one + firm = Firm.where(id: "1").preload(:readonly_account).first! + assert firm.readonly_account.readonly? + + # has_and_belongs_to_many + project = Project.where(id: "2").preload(:readonly_developers).first! + assert project.readonly_developers.first.readonly? + + # has-many :through + david = Author.where(id: "1").preload(:readonly_comments).first! + assert david.readonly_comments.first.readonly? + end + + test "eager-loading readonly association" do + # has-one + firm = Firm.where(id: "1").eager_load(:readonly_account).first! + assert firm.readonly_account.readonly? + + # has_and_belongs_to_many + project = Project.where(id: "2").eager_load(:readonly_developers).first! + assert project.readonly_developers.first.readonly? + + # has-many :through + david = Author.where(id: "1").eager_load(:readonly_comments).first! + assert david.readonly_comments.first.readonly? + + # belongs_to + post = Post.where(id: "1").eager_load(:author).first! + assert post.author.readonly? + end + + test "preloading a polymorphic association with references to the associated table" do + post = Post.includes(:tags).references(:tags).where('tags.name = ?', 'General').first + assert_equal posts(:welcome), post + end + + test "eager-loading a polymorphic association with references to the associated table" do + post = Post.eager_load(:tags).where('tags.name = ?', 'General').first + assert_equal posts(:welcome), post + end end |