diff options
Diffstat (limited to 'activerecord/test/cases/associations/eager_test.rb')
-rw-r--r-- | activerecord/test/cases/associations/eager_test.rb | 116 |
1 files changed, 115 insertions, 1 deletions
diff --git a/activerecord/test/cases/associations/eager_test.rb b/activerecord/test/cases/associations/eager_test.rb index 3c8408d14b..14099d4176 100644 --- a/activerecord/test/cases/associations/eager_test.rb +++ b/activerecord/test/cases/associations/eager_test.rb @@ -1,6 +1,7 @@ require "cases/helper" require 'models/post' require 'models/tagging' +require 'models/tag' require 'models/comment' require 'models/author' require 'models/category' @@ -145,7 +146,7 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_finding_with_includes_on_null_belongs_to_association_with_same_include_includes_only_once post = posts(:welcome) post.update_attributes!(:author => nil) - post = assert_queries(2) { Post.find(post.id, :include => {:author_with_address => :author_address}) } # find the post, then find the author which is null so no query for the address + post = assert_queries(1) { Post.find(post.id, :include => {:author_with_address => :author_address}) } # find the post, then find the author which is null so no query for the author or address assert_no_queries do assert_equal nil, post.author_with_address end @@ -705,4 +706,117 @@ class EagerAssociationTest < ActiveRecord::TestCase def test_order_on_join_table_with_include_and_limit assert_equal 5, Developer.find(:all, :include => 'projects', :order => 'developers_projects.joined_on DESC', :limit => 5).size end + + def test_eager_loading_with_order_on_joined_table_preloads + posts = assert_queries(2) do + Post.find(:all, :joins => :comments, :include => :author, :order => 'comments.id DESC') + end + assert_equal posts(:eager_other), posts[0] + assert_equal authors(:mary), assert_no_queries { posts[0].author} + end + + def test_eager_loading_with_conditions_on_joined_table_preloads + posts = assert_queries(2) do + Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => [:comments], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id') + end + assert_equal [posts(:welcome)], posts + assert_equal authors(:david), assert_no_queries { posts[0].author} + + posts = assert_queries(2) do + Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => [:comments], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id') + end + assert_equal [posts(:welcome)], posts + assert_equal authors(:david), assert_no_queries { posts[0].author} + + posts = assert_queries(2) do + Post.find(:all, :include => :author, :joins => {:taggings => :tag}, :conditions => "tags.name = 'General'", :order => 'posts.id') + end + assert_equal posts(:welcome, :thinking), posts + + posts = assert_queries(2) do + Post.find(:all, :include => :author, :joins => {:taggings => {:tag => :taggings}}, :conditions => "taggings_tags.super_tag_id=2", :order => 'posts.id') + end + assert_equal posts(:welcome, :thinking), posts + + end + + def test_eager_loading_with_conditions_on_string_joined_table_preloads + posts = assert_queries(2) do + Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => "INNER JOIN comments on comments.post_id = posts.id", :conditions => "comments.body like 'Thank you%'", :order => 'posts.id') + end + assert_equal [posts(:welcome)], posts + assert_equal authors(:david), assert_no_queries { posts[0].author} + + posts = assert_queries(2) do + Post.find(:all, :select => 'distinct posts.*', :include => :author, :joins => ["INNER JOIN comments on comments.post_id = posts.id"], :conditions => "comments.body like 'Thank you%'", :order => 'posts.id') + end + assert_equal [posts(:welcome)], posts + assert_equal authors(:david), assert_no_queries { posts[0].author} + + end + + def test_eager_loading_with_select_on_joined_table_preloads + posts = assert_queries(2) do + Post.find(:all, :select => 'posts.*, authors.name as author_name', :include => :comments, :joins => :author, :order => 'posts.id') + end + assert_equal 'David', posts[0].author_name + assert_equal posts(:welcome).comments, assert_no_queries { posts[0].comments} + end + + def test_eager_loading_with_conditions_on_join_model_preloads + authors = assert_queries(2) do + Author.find(:all, :include => :author_address, :joins => :comments, :conditions => "posts.title like 'Welcome%'") + end + assert_equal authors(:david), authors[0] + assert_equal author_addresses(:david_address), authors[0].author_address + end + + def test_preload_belongs_to_uses_exclusive_scope + people = Person.males.find(:all, :include => :primary_contact) + assert_not_equal people.length, 0 + people.each do |person| + assert_no_queries {assert_not_nil person.primary_contact} + assert_equal Person.find(person.id).primary_contact, person.primary_contact + end + end + + def test_preload_has_many_uses_exclusive_scope + people = Person.males.find :all, :include => :agents + people.each do |person| + assert_equal Person.find(person.id).agents, person.agents + end + end + + def test_preload_has_many_using_primary_key + expected = Firm.find(:first).clients_using_primary_key.to_a + firm = Firm.find :first, :include => :clients_using_primary_key + assert_no_queries do + assert_equal expected, firm.clients_using_primary_key + end + end + + def test_include_has_many_using_primary_key + expected = Firm.find(1).clients_using_primary_key.sort_by &:name + firm = Firm.find 1, :include => :clients_using_primary_key, :order => 'clients_using_primary_keys_companies.name' + assert_no_queries do + assert_equal expected, firm.clients_using_primary_key + end + 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 + 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 + 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 + end |