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git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8943 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
544 lines
23 KiB
Ruby
544 lines
23 KiB
Ruby
require "cases/helper"
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require 'models/post'
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require 'models/tagging'
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require 'models/comment'
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require 'models/author'
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require 'models/category'
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require 'models/company'
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require 'models/person'
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require 'models/reader'
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require 'models/owner'
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require 'models/pet'
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class EagerAssociationTest < ActiveRecord::TestCase
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fixtures :posts, :comments, :authors, :categories, :categories_posts,
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:companies, :accounts, :tags, :taggings, :people, :readers,
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:owners, :pets
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def test_loading_with_one_association
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posts = Post.find(:all, :include => :comments)
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post = posts.find { |p| p.id == 1 }
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assert_equal 2, post.comments.size
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assert post.comments.include?(comments(:greetings))
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post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
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assert_equal 2, post.comments.size
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assert post.comments.include?(comments(:greetings))
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end
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def test_loading_conditions_with_or
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posts = authors(:david).posts.find(:all, :include => :comments, :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE} = 'SpecialComment'")
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assert_nil posts.detect { |p| p.author_id != authors(:david).id },
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"expected to find only david's posts"
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end
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def test_with_ordering
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list = Post.find(:all, :include => :comments, :order => "posts.id DESC")
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[:eager_other, :sti_habtm, :sti_post_and_comments, :sti_comments,
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:authorless, :thinking, :welcome
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].each_with_index do |post, index|
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assert_equal posts(post), list[index]
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end
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end
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def test_with_two_tables_in_from_without_getting_double_quoted
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posts = Post.find(:all,
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:select => "posts.*",
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:from => "authors, posts",
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:include => :comments,
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:conditions => "posts.author_id = authors.id",
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:order => "posts.id"
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)
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assert_equal 2, posts.first.comments.size
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end
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def test_loading_with_multiple_associations
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posts = Post.find(:all, :include => [ :comments, :author, :categories ], :order => "posts.id")
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assert_equal 2, posts.first.comments.size
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assert_equal 2, posts.first.categories.size
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assert posts.first.comments.include?(comments(:greetings))
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end
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def test_duplicate_middle_objects
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comments = Comment.find :all, :conditions => 'post_id = 1', :include => [:post => :author]
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assert_no_queries do
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comments.each {|comment| comment.post.author.name}
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end
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end
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def test_including_duplicate_objects_from_belongs_to
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popular_post = Post.create!(:title => 'foo', :body => "I like cars!")
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comment = popular_post.comments.create!(:body => "lol")
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popular_post.readers.create!(:person => people(:michael))
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popular_post.readers.create!(:person => people(:david))
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readers = Reader.find(:all, :conditions => ["post_id = ?", popular_post.id],
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:include => {:post => :comments})
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readers.each do |reader|
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assert_equal [comment], reader.post.comments
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end
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end
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def test_including_duplicate_objects_from_has_many
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car_post = Post.create!(:title => 'foo', :body => "I like cars!")
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car_post.categories << categories(:general)
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car_post.categories << categories(:technology)
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comment = car_post.comments.create!(:body => "hmm")
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categories = Category.find(:all, :conditions => ["posts.id=?", car_post.id],
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:include => {:posts => :comments})
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categories.each do |category|
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assert_equal [comment], category.posts[0].comments
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end
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end
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def test_loading_from_an_association
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posts = authors(:david).posts.find(:all, :include => :comments, :order => "posts.id")
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assert_equal 2, posts.first.comments.size
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end
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def test_loading_with_no_associations
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assert_nil Post.find(posts(:authorless).id, :include => :author).author
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end
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def test_nested_loading_with_no_associations
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assert_nothing_raised do
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Post.find(posts(:authorless).id, :include => {:author => :author_addresss})
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end
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end
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def test_eager_association_loading_with_belongs_to_and_foreign_keys
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pets = Pet.find(:all, :include => :owner)
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assert_equal 3, pets.length
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end
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def test_eager_association_loading_with_belongs_to
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comments = Comment.find(:all, :include => :post)
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assert_equal 10, comments.length
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titles = comments.map { |c| c.post.title }
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assert titles.include?(posts(:welcome).title)
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assert titles.include?(posts(:sti_post_and_comments).title)
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end
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def test_eager_association_loading_with_belongs_to_and_limit
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comments = Comment.find(:all, :include => :post, :limit => 5, :order => 'comments.id')
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assert_equal 5, comments.length
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assert_equal [1,2,3,5,6], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_conditions
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comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [5,6,7], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset
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comments = Comment.find(:all, :include => :post, :limit => 3, :offset => 2, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [3,5,6], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions
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comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :offset => 1, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [6,7,8], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions_array
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comments = Comment.find(:all, :include => :post, :conditions => ['post_id = ?',4], :limit => 3, :offset => 1, :order => 'comments.id')
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assert_equal 3, comments.length
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assert_equal [6,7,8], comments.collect { |c| c.id }
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end
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def test_eager_association_loading_with_belongs_to_and_conditions_string_with_unquoted_table_name
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assert_nothing_raised do
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Comment.find(:all, :include => :post, :conditions => ['posts.id = ?',4])
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end
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end
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def test_eager_association_loading_with_belongs_to_and_conditions_string_with_quoted_table_name
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quoted_posts_id= Comment.connection.quote_table_name('posts') + '.' + Comment.connection.quote_column_name('id')
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assert_nothing_raised do
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Comment.find(:all, :include => :post, :conditions => ["#{quoted_posts_id} = ?",4])
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end
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end
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def test_eager_association_loading_with_belongs_to_and_order_string_with_unquoted_table_name
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assert_nothing_raised do
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Comment.find(:all, :include => :post, :order => 'posts.id')
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end
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end
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def test_eager_association_loading_with_belongs_to_and_order_string_with_quoted_table_name
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quoted_posts_id= Comment.connection.quote_table_name('posts') + '.' + Comment.connection.quote_column_name('id')
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assert_nothing_raised do
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Comment.find(:all, :include => :post, :order => quoted_posts_id)
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end
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_multiple_associations
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posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :order => 'posts.id')
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assert_equal 1, posts.length
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assert_equal [1], posts.collect { |p| p.id }
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end
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def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_multiple_associations
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posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :offset => 1, :order => 'posts.id')
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assert_equal 1, posts.length
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assert_equal [2], posts.collect { |p| p.id }
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end
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def test_eager_association_loading_with_belongs_to_inferred_foreign_key_from_association_name
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author_favorite = AuthorFavorite.find(:first, :include => :favorite_author)
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assert_equal authors(:mary), assert_no_queries { author_favorite.favorite_author }
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end
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def test_eager_association_loading_with_explicit_join
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posts = Post.find(:all, :include => :comments, :joins => "INNER JOIN authors ON posts.author_id = authors.id AND authors.name = 'Mary'", :limit => 1, :order => 'author_id')
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assert_equal 1, posts.length
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end
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def test_eager_with_has_many_through
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posts_with_comments = people(:michael).posts.find(:all, :include => :comments)
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posts_with_author = people(:michael).posts.find(:all, :include => :author )
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posts_with_comments_and_author = people(:michael).posts.find(:all, :include => [ :comments, :author ])
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assert_equal 2, posts_with_comments.inject(0) { |sum, post| sum += post.comments.size }
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assert_equal authors(:david), assert_no_queries { posts_with_author.first.author }
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assert_equal authors(:david), assert_no_queries { posts_with_comments_and_author.first.author }
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end
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def test_eager_with_has_many_through_an_sti_join_model
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author = Author.find(:first, :include => :special_post_comments, :order => 'authors.id')
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assert_equal [comments(:does_it_hurt)], assert_no_queries { author.special_post_comments }
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end
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def test_eager_with_has_many_through_an_sti_join_model_with_conditions_on_both
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author = Author.find(:first, :include => :special_nonexistant_post_comments, :order => 'authors.id')
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assert_equal [], author.special_nonexistant_post_comments
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end
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def test_eager_with_has_many_through_join_model_with_conditions
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assert_equal Author.find(:first, :include => :hello_post_comments,
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:order => 'authors.id').hello_post_comments.sort_by(&:id),
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Author.find(:first, :order => 'authors.id').hello_post_comments.sort_by(&:id)
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end
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def test_eager_with_has_many_and_limit
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posts = Post.find(:all, :order => 'posts.id asc', :include => [ :author, :comments ], :limit => 2)
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assert_equal 2, posts.size
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assert_equal 3, posts.inject(0) { |sum, post| sum += post.comments.size }
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end
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def test_eager_with_has_many_and_limit_and_conditions
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if current_adapter?(:OpenBaseAdapter)
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "FETCHBLOB(posts.body) = 'hello'", :order => "posts.id")
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else
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.body = 'hello'", :order => "posts.id")
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end
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assert_equal 2, posts.size
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assert_equal [4,5], posts.collect { |p| p.id }
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end
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def test_eager_with_has_many_and_limit_and_conditions_array
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if current_adapter?(:OpenBaseAdapter)
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "FETCHBLOB(posts.body) = ?", 'hello' ], :order => "posts.id")
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else
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "posts.body = ?", 'hello' ], :order => "posts.id")
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end
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assert_equal 2, posts.size
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assert_equal [4,5], posts.collect { |p| p.id }
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end
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def test_eager_with_has_many_and_limit_and_conditions_array_on_the_eagers
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
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assert_equal 2, posts.size
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count = Post.count(:include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
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assert_equal count, posts.size
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end
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def test_eager_with_has_many_and_limit_ond_high_offset
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
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assert_equal 0, posts.size
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end
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def test_count_eager_with_has_many_and_limit_ond_high_offset
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posts = Post.count(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
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assert_equal 0, posts
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end
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def test_eager_with_has_many_and_limit_with_no_results
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posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.title = 'magic forest'")
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assert_equal 0, posts.size
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end
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def test_eager_count_performed_on_a_has_many_association_with_multi_table_conditional
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author = authors(:david)
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author_posts_without_comments = author.posts.select { |post| post.comments.blank? }
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assert_equal author_posts_without_comments.size, author.posts.count(:all, :include => :comments, :conditions => 'comments.id is null')
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end
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def test_eager_count_performed_on_a_has_many_through_association_with_multi_table_conditional
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person = people(:michael)
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person_posts_without_comments = person.posts.select { |post| post.comments.blank? }
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assert_equal person_posts_without_comments.size, person.posts_with_no_comments.count
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end
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def test_eager_with_has_and_belongs_to_many_and_limit
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posts = Post.find(:all, :include => :categories, :order => "posts.id", :limit => 3)
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assert_equal 3, posts.size
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assert_equal 2, posts[0].categories.size
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assert_equal 1, posts[1].categories.size
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assert_equal 0, posts[2].categories.size
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assert posts[0].categories.include?(categories(:technology))
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assert posts[1].categories.include?(categories(:general))
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end
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def test_eager_with_has_many_and_limit_and_conditions_on_the_eagers
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posts = authors(:david).posts.find(:all,
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:include => :comments,
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:conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
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:limit => 2
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)
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assert_equal 2, posts.size
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count = Post.count(
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:include => [ :comments, :author ],
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:conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
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:limit => 2
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)
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assert_equal count, posts.size
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end
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def test_eager_with_has_many_and_limit_and_scoped_conditions_on_the_eagers
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posts = nil
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Post.with_scope(:find => {
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:include => :comments,
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:conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'"
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}) do
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posts = authors(:david).posts.find(:all, :limit => 2)
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assert_equal 2, posts.size
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end
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Post.with_scope(:find => {
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:include => [ :comments, :author ],
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:conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')"
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}) do
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count = Post.count(:limit => 2)
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assert_equal count, posts.size
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end
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end
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def test_eager_with_has_many_and_limit_and_scoped_and_explicit_conditions_on_the_eagers
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Post.with_scope(:find => { :conditions => "1=1" }) do
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posts = authors(:david).posts.find(:all,
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:include => :comments,
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:conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
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:limit => 2
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)
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assert_equal 2, posts.size
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count = Post.count(
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:include => [ :comments, :author ],
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:conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
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:limit => 2
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)
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assert_equal count, posts.size
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end
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end
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def test_eager_with_scoped_order_using_association_limiting_without_explicit_scope
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posts_with_explicit_order = Post.find(:all, :conditions => 'comments.id is not null', :include => :comments, :order => 'posts.id DESC', :limit => 2)
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posts_with_scoped_order = Post.with_scope(:find => {:order => 'posts.id DESC'}) do
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Post.find(:all, :conditions => 'comments.id is not null', :include => :comments, :limit => 2)
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end
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assert_equal posts_with_explicit_order, posts_with_scoped_order
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end
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def test_eager_association_loading_with_habtm
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posts = Post.find(:all, :include => :categories, :order => "posts.id")
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assert_equal 2, posts[0].categories.size
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assert_equal 1, posts[1].categories.size
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assert_equal 0, posts[2].categories.size
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assert posts[0].categories.include?(categories(:technology))
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assert posts[1].categories.include?(categories(:general))
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end
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def test_eager_with_inheritance
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posts = SpecialPost.find(:all, :include => [ :comments ])
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end
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def test_eager_has_one_with_association_inheritance
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post = Post.find(4, :include => [ :very_special_comment ])
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assert_equal "VerySpecialComment", post.very_special_comment.class.to_s
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end
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def test_eager_has_many_with_association_inheritance
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post = Post.find(4, :include => [ :special_comments ])
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post.special_comments.each do |special_comment|
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assert_equal "SpecialComment", special_comment.class.to_s
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end
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end
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def test_eager_habtm_with_association_inheritance
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post = Post.find(6, :include => [ :special_categories ])
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assert_equal 1, post.special_categories.size
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post.special_categories.each do |special_category|
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assert_equal "SpecialCategory", special_category.class.to_s
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end
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end
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def test_eager_with_has_one_dependent_does_not_destroy_dependent
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assert_not_nil companies(:first_firm).account
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f = Firm.find(:first, :include => :account,
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:conditions => ["companies.name = ?", "37signals"])
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assert_not_nil f.account
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assert_equal companies(:first_firm, :reload).account, f.account
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end
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def test_eager_with_multi_table_conditional_properly_counts_the_records_when_using_size
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author = authors(:david)
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posts_with_no_comments = author.posts.select { |post| post.comments.blank? }
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assert_equal posts_with_no_comments.size, author.posts_with_no_comments.size
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assert_equal posts_with_no_comments, author.posts_with_no_comments
|
|
end
|
|
|
|
def test_eager_with_invalid_association_reference
|
|
assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") {
|
|
post = Post.find(6, :include=> :monkeys )
|
|
}
|
|
assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") {
|
|
post = Post.find(6, :include=>[ :monkeys ])
|
|
}
|
|
assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys") {
|
|
post = Post.find(6, :include=>[ 'monkeys' ])
|
|
}
|
|
assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it? You specified :include => :monkeys, :elephants") {
|
|
post = Post.find(6, :include=>[ :monkeys, :elephants ])
|
|
}
|
|
end
|
|
|
|
def find_all_ordered(className, include=nil)
|
|
className.find(:all, :order=>"#{className.table_name}.#{className.primary_key}", :include=>include)
|
|
end
|
|
|
|
def test_limited_eager_with_order
|
|
assert_equal posts(:thinking, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => 'UPPER(posts.title)', :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', :limit => 2, :offset => 1)
|
|
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)
|
|
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))
|
|
post = SpecialPost.find(posts(:thinking).id, :include => :taggings)
|
|
assert post.taggings.include?(taggings(:thinking_general))
|
|
end
|
|
|
|
def test_eager_with_multiple_associations_with_same_table_has_many_and_habtm
|
|
# Eager includes of has many and habtm associations aren't necessarily sorted in the same way
|
|
def assert_equal_after_sort(item1, item2, item3 = nil)
|
|
assert_equal(item1.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id})
|
|
assert_equal(item3.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id}) if item3
|
|
end
|
|
# Test regular association, association with conditions, association with
|
|
# STI, and association with conditions assured not to be true
|
|
post_types = [:posts, :other_posts, :special_posts]
|
|
# test both has_many and has_and_belongs_to_many
|
|
[Author, Category].each do |className|
|
|
d1 = find_all_ordered(className)
|
|
# test including all post types at once
|
|
d2 = find_all_ordered(className, post_types)
|
|
d1.each_index do |i|
|
|
assert_equal(d1[i], d2[i])
|
|
assert_equal_after_sort(d1[i].posts, d2[i].posts)
|
|
post_types[1..-1].each do |post_type|
|
|
# test including post_types together
|
|
d3 = find_all_ordered(className, [:posts, post_type])
|
|
assert_equal(d1[i], d3[i])
|
|
assert_equal_after_sort(d1[i].posts, d3[i].posts)
|
|
assert_equal_after_sort(d1[i].send(post_type), d2[i].send(post_type), d3[i].send(post_type))
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
def test_eager_with_multiple_associations_with_same_table_has_one
|
|
d1 = find_all_ordered(Firm)
|
|
d2 = find_all_ordered(Firm, :account)
|
|
d1.each_index do |i|
|
|
assert_equal(d1[i], d2[i])
|
|
assert_equal(d1[i].account, d2[i].account)
|
|
end
|
|
end
|
|
|
|
def test_eager_with_multiple_associations_with_same_table_belongs_to
|
|
firm_types = [:firm, :firm_with_basic_id, :firm_with_other_name, :firm_with_condition]
|
|
d1 = find_all_ordered(Client)
|
|
d2 = find_all_ordered(Client, firm_types)
|
|
d1.each_index do |i|
|
|
assert_equal(d1[i], d2[i])
|
|
firm_types.each { |type| assert_equal(d1[i].send(type), d2[i].send(type)) }
|
|
end
|
|
end
|
|
def test_eager_with_valid_association_as_string_not_symbol
|
|
assert_nothing_raised { Post.find(:all, :include => 'comments') }
|
|
end
|
|
|
|
def test_preconfigured_includes_with_belongs_to
|
|
author = posts(:welcome).author_with_posts
|
|
assert_no_queries {assert_equal 5, author.posts.size}
|
|
end
|
|
|
|
def test_preconfigured_includes_with_has_one
|
|
comment = posts(:sti_comments).very_special_comment_with_post
|
|
assert_no_queries {assert_equal posts(:sti_comments), comment.post}
|
|
end
|
|
|
|
def test_preconfigured_includes_with_has_many
|
|
posts = authors(:david).posts_with_comments
|
|
one = posts.detect { |p| p.id == 1 }
|
|
assert_no_queries do
|
|
assert_equal 5, posts.size
|
|
assert_equal 2, one.comments.size
|
|
end
|
|
end
|
|
|
|
def test_preconfigured_includes_with_habtm
|
|
posts = authors(:david).posts_with_categories
|
|
one = posts.detect { |p| p.id == 1 }
|
|
assert_no_queries do
|
|
assert_equal 5, posts.size
|
|
assert_equal 2, one.categories.size
|
|
end
|
|
end
|
|
|
|
def test_preconfigured_includes_with_has_many_and_habtm
|
|
posts = authors(:david).posts_with_comments_and_categories
|
|
one = posts.detect { |p| p.id == 1 }
|
|
assert_no_queries do
|
|
assert_equal 5, posts.size
|
|
assert_equal 2, one.comments.size
|
|
assert_equal 2, one.categories.size
|
|
end
|
|
end
|
|
|
|
def test_count_with_include
|
|
if current_adapter?(:SQLServerAdapter, :SybaseAdapter)
|
|
assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "len(comments.body) > 15")
|
|
elsif current_adapter?(:OpenBaseAdapter)
|
|
assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "length(FETCHBLOB(comments.body)) > 15")
|
|
else
|
|
assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "length(comments.body) > 15")
|
|
end
|
|
end
|
|
end
|