diff options
Diffstat (limited to 'activerecord/test/cases/associations/eager_test.rb')
| -rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 142 |
1 files changed, 122 insertions, 20 deletions
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index 2d8e02e398..e11f1009dc 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -17,12 +17,27 @@ require 'models/subscription' require 'models/book' require 'models/developer' require 'models/project' +require 'models/member' +require 'models/membership' +require 'models/club' +require 'models/categorization' +require 'models/sponsor' class EagerAssociationTest < ActiveRecord::TestCase fixtures :posts, :comments, :authors, :author_addresses, :categories, :categories_posts, - :companies, :accounts, :tags, :taggings, :people, :readers, + :companies, :accounts, :tags, :taggings, :people, :readers, :categorizations, :owners, :pets, :author_favorites, :jobs, :references, :subscribers, :subscriptions, :books, - :developers, :projects, :developers_projects + :developers, :projects, :developers_projects, :members, :memberships, :clubs, :sponsors + + def setup + # preheat table existence caches + Comment.find_by_id(1) + end + + def test_eager_with_has_one_through_join_model_with_conditions_on_the_through + member = Member.find(members(:some_other_guy).id, :include => :favourite_club) + assert_nil member.favourite_club + end def test_loading_with_one_association posts = Post.find(:all, :include => :comments) @@ -79,6 +94,58 @@ class EagerAssociationTest < ActiveRecord::TestCase end end + def test_preloading_has_many_in_multiple_queries_with_more_ids_than_database_can_handle + Post.connection.expects(:in_clause_length).at_least_once.returns(5) + posts = Post.find(:all, :include=>:comments) + assert_equal 7, posts.size + end + + def test_preloading_has_many_in_one_queries_when_database_has_no_limit_on_ids_it_can_handle + Post.connection.expects(:in_clause_length).at_least_once.returns(nil) + posts = Post.find(:all, :include=>:comments) + assert_equal 7, posts.size + end + + def test_preloading_habtm_in_multiple_queries_with_more_ids_than_database_can_handle + Post.connection.expects(:in_clause_length).at_least_once.returns(5) + posts = Post.find(:all, :include=>:categories) + assert_equal 7, posts.size + end + + def test_preloading_habtm_in_one_queries_when_database_has_no_limit_on_ids_it_can_handle + Post.connection.expects(:in_clause_length).at_least_once.returns(nil) + posts = Post.find(:all, :include=>:categories) + assert_equal 7, posts.size + end + + def test_load_associated_records_in_one_query_when_adapter_has_no_limit + Post.connection.expects(:in_clause_length).at_least_once.returns(nil) + Post.expects(:i_was_called).with([1,2,3,4,5,6,7]).returns([1]) + associated_records = Post.send(:associated_records, [1,2,3,4,5,6,7]) do |some_ids| + Post.i_was_called(some_ids) + end + assert_equal [1], associated_records + end + + def test_load_associated_records_in_several_queries_when_many_ids_passed + Post.connection.expects(:in_clause_length).at_least_once.returns(5) + Post.expects(:i_was_called).with([1,2,3,4,5]).returns([1]) + Post.expects(:i_was_called).with([6,7]).returns([6]) + associated_records = Post.send(:associated_records, [1,2,3,4,5,6,7]) do |some_ids| + Post.i_was_called(some_ids) + end + assert_equal [1,6], associated_records + end + + def test_load_associated_records_in_one_query_when_a_few_ids_passed + Post.connection.expects(:in_clause_length).at_least_once.returns(5) + Post.expects(:i_was_called).with([1,2,3]).returns([1]) + associated_records = Post.send(:associated_records, [1,2,3]) do |some_ids| + Post.i_was_called(some_ids) + end + assert_equal [1], associated_records + end + def test_including_duplicate_objects_from_belongs_to popular_post = Post.create!(:title => 'foo', :body => "I like cars!") comment = popular_post.comments.create!(:body => "lol") @@ -145,6 +212,15 @@ class EagerAssociationTest < ActiveRecord::TestCase end end + def test_finding_with_includes_on_null_belongs_to_polymorphic_association + sponsor = sponsors(:moustache_club_sponsor_for_groucho) + sponsor.update_attributes!(:sponsorable => nil) + sponsor = assert_queries(1) { Sponsor.find(sponsor.id, :include => :sponsorable) } + assert_no_queries do + assert_equal nil, sponsor.sponsorable + end + end + def test_loading_from_an_association posts = authors(:david).posts.find(:all, :include => :comments, :order => "posts.id") assert_equal 2, posts.first.comments.size @@ -323,7 +399,7 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_eager_with_has_many_through_a_belongs_to_association author = authors(:mary) - post = Post.create!(:author => author, :title => "TITLE", :body => "BODY") + Post.create!(:author => author, :title => "TITLE", :body => "BODY") author.author_favorites.create(:favorite_author_id => 1) author.author_favorites.create(:favorite_author_id => 2) posts_with_author_favorites = author.posts.find(:all, :include => :author_favorites) @@ -521,7 +597,7 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_eager_with_inheritance - posts = SpecialPost.find(:all, :include => [ :comments ]) + SpecialPost.find(:all, :include => [ :comments ]) end def test_eager_has_one_with_association_inheritance @@ -561,16 +637,16 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_eager_with_invalid_association_reference assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { - post = Post.find(6, :include=> :monkeys ) + Post.find(6, :include=> :monkeys ) } assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { - post = Post.find(6, :include=>[ :monkeys ]) + Post.find(6, :include=>[ :monkeys ]) } assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") { - post = Post.find(6, :include=>[ 'monkeys' ]) + Post.find(6, :include=>[ 'monkeys' ]) } assert_raise(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") { - post = Post.find(6, :include=>[ :monkeys, :elephants ]) + Post.find(6, :include=>[ :monkeys, :elephants ]) } end @@ -584,18 +660,14 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_limited_eager_with_multiple_order_columns - assert_equal posts(:thinking, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => 'UPPER(posts.title), posts.id', :limit => 2, :offset => 1) - assert_equal posts(:sti_post_and_comments, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => 'UPPER(posts.title) DESC, posts.id', :limit => 2, :offset => 1) + assert_equal posts(:thinking, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => ['UPPER(posts.title)', 'posts.id'], :limit => 2, :offset => 1) + assert_equal posts(:sti_post_and_comments, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => ['UPPER(posts.title) DESC', 'posts.id'], :limit => 2, :offset => 1) end def test_limited_eager_with_numeric_in_association assert_equal people(:david, :susan), Person.find(:all, :include => [:readers, :primary_contact, :number1_fan], :conditions => "number1_fans_people.first_name like 'M%'", :order => 'people.id', :limit => 2, :offset => 0) end - def test_preload_with_interpolation - assert_equal [comments(:greetings)], Post.find(posts(:welcome).id, :include => :comments_with_interpolated_conditions).comments_with_interpolated_conditions - end - def test_polymorphic_type_condition post = Post.find(posts(:thinking).id, :include => :taggings) assert post.taggings.include?(taggings(:thinking_general)) @@ -824,25 +896,55 @@ class EagerAssociationTest < ActiveRecord::TestCase end def test_preload_has_one_using_primary_key - expected = Firm.find(:first).account_using_primary_key - firm = Firm.find :first, :include => :account_using_primary_key + expected = accounts(:signals37) + firm = Firm.find :first, :include => :account_using_primary_key, :order => 'companies.id' assert_no_queries do assert_equal expected, firm.account_using_primary_key end end def test_include_has_one_using_primary_key - expected = Firm.find(1).account_using_primary_key + expected = accounts(:signals37) firm = Firm.find(:all, :include => :account_using_primary_key, :order => 'accounts.id').detect {|f| f.id == 1} assert_no_queries do assert_equal expected, firm.account_using_primary_key end end - def test_preloading_empty_polymorphic_parent + def test_preloading_empty_belongs_to + c = Client.create!(:name => 'Foo', :client_of => Company.maximum(:id) + 1) + + client = assert_queries(2) { Client.preload(:firm).find(c.id) } + assert_no_queries { assert_nil client.firm } + end + + def test_preloading_empty_belongs_to_polymorphic t = Tagging.create!(:taggable_type => 'Post', :taggable_id => Post.maximum(:id) + 1, :tag => tags(:general)) - assert_queries(2) { @tagging = Tagging.preload(:taggable).find(t.id) } - assert_no_queries { assert ! @tagging.taggable } + tagging = assert_queries(2) { Tagging.preload(:taggable).find(t.id) } + assert_no_queries { assert_nil tagging.taggable } + end + + def test_preloading_through_empty_belongs_to + c = Client.create!(:name => 'Foo', :client_of => Company.maximum(:id) + 1) + + client = assert_queries(2) { Client.preload(:accounts).find(c.id) } + assert_no_queries { assert client.accounts.empty? } + end + + def test_preloading_has_many_through_with_uniq + mary = Author.includes(:unique_categorized_posts).where(:id => authors(:mary).id).first + assert_equal 1, mary.unique_categorized_posts.length + assert_equal 1, mary.unique_categorized_post_ids.length + end + + def test_preloading_polymorphic_with_custom_foreign_type + sponsor = sponsors(:moustache_club_sponsor_for_groucho) + groucho = members(:groucho) + + sponsor = assert_queries(2) { + Sponsor.includes(:thing).where(:id => sponsor.id).first + } + assert_no_queries { assert_equal groucho, sponsor.thing } end end |