vendor/rails/activerecord/test/cases/associations/eager_test.rb

   1 require "cases/helper"
   2 require 'models/post'
   3 require 'models/tagging'
   4 require 'models/comment'
   5 require 'models/author'
   6 require 'models/category'
   7 require 'models/company'
   8 require 'models/person'
   9 require 'models/reader'
  10 require 'models/owner'
  11 require 'models/pet'
  12 require 'models/reference'
  13 require 'models/job'
  14 require 'models/subscriber'
  15 require 'models/subscription'
  16 require 'models/book'
  17 require 'models/developer'
  18 require 'models/project'
  19
  20 class EagerAssociationTest < ActiveRecord::TestCase
  21   fixtures :posts, :comments, :authors, :author_addresses, :categories, :categories_posts,
  22             :companies, :accounts, :tags, :taggings, :people, :readers,
  23             :owners, :pets, :author_favorites, :jobs, :references, :subscribers, :subscriptions, :books,
  24             :developers, :projects, :developers_projects
  25
  26   def test_loading_with_one_association
  27     posts = Post.find(:all, :include => :comments)
  28     post = posts.find { |p| p.id == 1 }
  29     assert_equal 2, post.comments.size
  30     assert post.comments.include?(comments(:greetings))
  31
  32     post = Post.find(:first, :include => :comments, :conditions => "posts.title = 'Welcome to the weblog'")
  33     assert_equal 2, post.comments.size
  34     assert post.comments.include?(comments(:greetings))
  35
  36     posts = Post.find(:all, :include => :last_comment)
  37     post = posts.find { |p| p.id == 1 }
  38     assert_equal Post.find(1).last_comment, post.last_comment
  39   end
  40
  41   def test_loading_with_one_association_with_non_preload
  42     posts = Post.find(:all, :include => :last_comment, :order => 'comments.id DESC')
  43     post = posts.find { |p| p.id == 1 }
  44     assert_equal Post.find(1).last_comment, post.last_comment
  45   end
  46
  47   def test_loading_conditions_with_or
  48     posts = authors(:david).posts.find(:all, :include => :comments, :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE} = 'SpecialComment'")
  49     assert_nil posts.detect { |p| p.author_id != authors(:david).id },
  50       "expected to find only david's posts"
  51   end
  52
  53   def test_with_ordering
  54     list = Post.find(:all, :include => :comments, :order => "posts.id DESC")
  55     [:eager_other, :sti_habtm, :sti_post_and_comments, :sti_comments,
  56      :authorless, :thinking, :welcome
  57     ].each_with_index do |post, index|
  58       assert_equal posts(post), list[index]
  59     end
  60   end
  61
  62   def test_with_two_tables_in_from_without_getting_double_quoted
  63     posts = Post.find(:all,
  64       :select     => "posts.*",
  65       :from       => "authors, posts",
  66       :include    => :comments,
  67       :conditions => "posts.author_id = authors.id",
  68       :order      => "posts.id"
  69     )
  70
  71     assert_equal 2, posts.first.comments.size
  72   end
  73
  74   def test_loading_with_multiple_associations
  75     posts = Post.find(:all, :include => [ :comments, :author, :categories ], :order => "posts.id")
  76     assert_equal 2, posts.first.comments.size
  77     assert_equal 2, posts.first.categories.size
  78     assert posts.first.comments.include?(comments(:greetings))
  79   end
  80
  81   def test_duplicate_middle_objects
  82     comments = Comment.find :all, :conditions => 'post_id = 1', :include => [:post => :author]
  83     assert_no_queries do
  84       comments.each {|comment| comment.post.author.name}
  85     end
  86   end
  87
  88   def test_including_duplicate_objects_from_belongs_to
  89     popular_post = Post.create!(:title => 'foo', :body => "I like cars!")
  90     comment = popular_post.comments.create!(:body => "lol")
  91     popular_post.readers.create!(:person => people(:michael))
  92     popular_post.readers.create!(:person => people(:david))
  93
  94     readers = Reader.find(:all, :conditions => ["post_id = ?", popular_post.id],
  95                                 :include => {:post => :comments})
  96     readers.each do |reader|
  97       assert_equal [comment], reader.post.comments
  98     end
  99   end
 100
 101   def test_including_duplicate_objects_from_has_many
 102     car_post = Post.create!(:title => 'foo', :body => "I like cars!")
 103     car_post.categories << categories(:general)
 104     car_post.categories << categories(:technology)
 105
 106     comment = car_post.comments.create!(:body => "hmm")
 107     categories = Category.find(:all, :conditions => ["posts.id=?", car_post.id],
 108                                  :include => {:posts => :comments})
 109     categories.each do |category|
 110       assert_equal [comment], category.posts[0].comments
 111     end
 112   end
 113
 114   def test_finding_with_includes_on_has_many_association_with_same_include_includes_only_once
 115     author_id = authors(:david).id
 116     author = assert_queries(3) { Author.find(author_id, :include => {:posts_with_comments => :comments}) } # find the author, then find the posts, then find the comments
 117     author.posts_with_comments.each do |post_with_comments|
 118       assert_equal post_with_comments.comments.length, post_with_comments.comments.count
 119       assert_equal nil, post_with_comments.comments.uniq!
 120     end
 121   end
 122
 123   def test_finding_with_includes_on_has_one_assocation_with_same_include_includes_only_once
 124     author = authors(:david)
 125     post = author.post_about_thinking_with_last_comment
 126     last_comment = post.last_comment
 127     author = assert_queries(3) { Author.find(author.id, :include => {:post_about_thinking_with_last_comment => :last_comment})} # find the author, then find the posts, then find the comments
 128     assert_no_queries do
 129       assert_equal post, author.post_about_thinking_with_last_comment
 130       assert_equal last_comment, author.post_about_thinking_with_last_comment.last_comment
 131     end
 132   end
 133
 134   def test_finding_with_includes_on_belongs_to_association_with_same_include_includes_only_once
 135     post = posts(:welcome)
 136     author = post.author
 137     author_address = author.author_address
 138     post = assert_queries(3) { Post.find(post.id, :include => {:author_with_address => :author_address}) } # find the post, then find the author, then find the address
 139     assert_no_queries do
 140       assert_equal author, post.author_with_address
 141       assert_equal author_address, post.author_with_address.author_address
 142     end
 143   end
 144
 145   def test_finding_with_includes_on_null_belongs_to_association_with_same_include_includes_only_once
 146     post = posts(:welcome)
 147     post.update_attributes!(:author => nil)
 148     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
 149     assert_no_queries do
 150       assert_equal nil, post.author_with_address
 151     end
 152   end
 153
 154   def test_loading_from_an_association
 155     posts = authors(:david).posts.find(:all, :include => :comments, :order => "posts.id")
 156     assert_equal 2, posts.first.comments.size
 157   end
 158
 159   def test_loading_from_an_association_that_has_a_hash_of_conditions
 160     assert_nothing_raised do
 161       Author.find(:all, :include => :hello_posts_with_hash_conditions)
 162     end
 163     assert !Author.find(authors(:david).id, :include => :hello_posts_with_hash_conditions).hello_posts.empty?
 164   end
 165
 166   def test_loading_with_no_associations
 167     assert_nil Post.find(posts(:authorless).id, :include => :author).author
 168   end
 169
 170   def test_nested_loading_with_no_associations
 171     assert_nothing_raised do
 172       Post.find(posts(:authorless).id, :include => {:author => :author_addresss})
 173     end
 174   end
 175
 176   def test_eager_association_loading_with_belongs_to_and_foreign_keys
 177     pets = Pet.find(:all, :include => :owner)
 178     assert_equal 3, pets.length
 179   end
 180
 181   def test_eager_association_loading_with_belongs_to
 182     comments = Comment.find(:all, :include => :post)
 183     assert_equal 10, comments.length
 184     titles = comments.map { |c| c.post.title }
 185     assert titles.include?(posts(:welcome).title)
 186     assert titles.include?(posts(:sti_post_and_comments).title)
 187   end
 188
 189   def test_eager_association_loading_with_belongs_to_and_limit
 190     comments = Comment.find(:all, :include => :post, :limit => 5, :order => 'comments.id')
 191     assert_equal 5, comments.length
 192     assert_equal [1,2,3,5,6], comments.collect { |c| c.id }
 193   end
 194
 195   def test_eager_association_loading_with_belongs_to_and_limit_and_conditions
 196     comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :order => 'comments.id')
 197     assert_equal 3, comments.length
 198     assert_equal [5,6,7], comments.collect { |c| c.id }
 199   end
 200
 201   def test_eager_association_loading_with_belongs_to_and_limit_and_offset
 202     comments = Comment.find(:all, :include => :post, :limit => 3, :offset => 2, :order => 'comments.id')
 203     assert_equal 3, comments.length
 204     assert_equal [3,5,6], comments.collect { |c| c.id }
 205   end
 206
 207   def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions
 208     comments = Comment.find(:all, :include => :post, :conditions => 'post_id = 4', :limit => 3, :offset => 1, :order => 'comments.id')
 209     assert_equal 3, comments.length
 210     assert_equal [6,7,8], comments.collect { |c| c.id }
 211   end
 212
 213   def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_conditions_array
 214     comments = Comment.find(:all, :include => :post, :conditions => ['post_id = ?',4], :limit => 3, :offset => 1, :order => 'comments.id')
 215     assert_equal 3, comments.length
 216     assert_equal [6,7,8], comments.collect { |c| c.id }
 217   end
 218
 219   def test_eager_association_loading_with_belongs_to_and_conditions_string_with_unquoted_table_name
 220     assert_nothing_raised do
 221       Comment.find(:all, :include => :post, :conditions => ['posts.id = ?',4])
 222     end
 223   end
 224
 225   def test_eager_association_loading_with_belongs_to_and_conditions_string_with_quoted_table_name
 226     quoted_posts_id= Comment.connection.quote_table_name('posts') + '.' + Comment.connection.quote_column_name('id')
 227     assert_nothing_raised do
 228       Comment.find(:all, :include => :post, :conditions => ["#{quoted_posts_id} = ?",4])
 229     end
 230   end
 231
 232   def test_eager_association_loading_with_belongs_to_and_order_string_with_unquoted_table_name
 233     assert_nothing_raised do
 234       Comment.find(:all, :include => :post, :order => 'posts.id')
 235     end
 236   end
 237
 238   def test_eager_association_loading_with_belongs_to_and_order_string_with_quoted_table_name
 239     quoted_posts_id= Comment.connection.quote_table_name('posts') + '.' + Comment.connection.quote_column_name('id')
 240     assert_nothing_raised do
 241       Comment.find(:all, :include => :post, :order => quoted_posts_id)
 242     end
 243   end
 244
 245   def test_eager_association_loading_with_belongs_to_and_limit_and_multiple_associations
 246     posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :order => 'posts.id')
 247     assert_equal 1, posts.length
 248     assert_equal [1], posts.collect { |p| p.id }
 249   end
 250
 251   def test_eager_association_loading_with_belongs_to_and_limit_and_offset_and_multiple_associations
 252     posts = Post.find(:all, :include => [:author, :very_special_comment], :limit => 1, :offset => 1, :order => 'posts.id')
 253     assert_equal 1, posts.length
 254     assert_equal [2], posts.collect { |p| p.id }
 255   end
 256
 257   def test_eager_association_loading_with_belongs_to_inferred_foreign_key_from_association_name
 258     author_favorite = AuthorFavorite.find(:first, :include => :favorite_author)
 259     assert_equal authors(:mary), assert_no_queries { author_favorite.favorite_author }
 260   end
 261
 262   def test_eager_load_belongs_to_quotes_table_and_column_names
 263     job = Job.find jobs(:unicyclist).id, :include => :ideal_reference
 264     references(:michael_unicyclist)
 265     assert_no_queries{ assert_equal references(:michael_unicyclist), job.ideal_reference}
 266   end
 267
 268   def test_eager_load_has_one_quotes_table_and_column_names
 269     michael = Person.find(people(:michael), :include => :favourite_reference)
 270     references(:michael_unicyclist)
 271     assert_no_queries{ assert_equal references(:michael_unicyclist), michael.favourite_reference}
 272   end
 273
 274   def test_eager_load_has_many_quotes_table_and_column_names
 275     michael = Person.find(people(:michael), :include => :references)
 276     references(:michael_magician,:michael_unicyclist)
 277     assert_no_queries{ assert_equal references(:michael_magician,:michael_unicyclist), michael.references.sort_by(&:id) }
 278   end
 279
 280   def test_eager_load_has_many_through_quotes_table_and_column_names
 281     michael = Person.find(people(:michael), :include => :jobs)
 282     jobs(:magician, :unicyclist)
 283     assert_no_queries{ assert_equal jobs(:unicyclist, :magician), michael.jobs.sort_by(&:id) }
 284   end
 285
 286   def test_eager_load_has_many_with_string_keys
 287     subscriptions = subscriptions(:webster_awdr, :webster_rfr)
 288     subscriber =Subscriber.find(subscribers(:second).id, :include => :subscriptions)
 289     assert_equal subscriptions, subscriber.subscriptions.sort_by(&:id)
 290   end
 291
 292   def test_eager_load_has_many_through_with_string_keys
 293     books = books(:awdr, :rfr)
 294     subscriber = Subscriber.find(subscribers(:second).id, :include => :books)
 295     assert_equal books, subscriber.books.sort_by(&:id)
 296   end
 297
 298   def test_eager_load_belongs_to_with_string_keys
 299     subscriber = subscribers(:second)
 300     subscription = Subscription.find(subscriptions(:webster_awdr).id, :include => :subscriber)
 301     assert_equal subscriber, subscription.subscriber
 302   end
 303
 304   def test_eager_association_loading_with_explicit_join
 305     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')
 306     assert_equal 1, posts.length
 307   end
 308
 309   def test_eager_with_has_many_through
 310     posts_with_comments = people(:michael).posts.find(:all, :include => :comments, :order => 'posts.id')
 311     posts_with_author = people(:michael).posts.find(:all, :include => :author, :order => 'posts.id')
 312     posts_with_comments_and_author = people(:michael).posts.find(:all, :include => [ :comments, :author ], :order => 'posts.id')
 313     assert_equal 2, posts_with_comments.inject(0) { |sum, post| sum += post.comments.size }
 314     assert_equal authors(:david), assert_no_queries { posts_with_author.first.author }
 315     assert_equal authors(:david), assert_no_queries { posts_with_comments_and_author.first.author }
 316   end
 317
 318   def test_eager_with_has_many_through_a_belongs_to_association
 319     author = authors(:mary)
 320     post = Post.create!(:author => author, :title => "TITLE", :body => "BODY")
 321     author.author_favorites.create(:favorite_author_id => 1)
 322     author.author_favorites.create(:favorite_author_id => 2)
 323     posts_with_author_favorites = author.posts.find(:all, :include => :author_favorites)
 324     assert_no_queries { posts_with_author_favorites.first.author_favorites.first.author_id }
 325   end
 326
 327   def test_eager_with_has_many_through_an_sti_join_model
 328     author = Author.find(:first, :include => :special_post_comments, :order => 'authors.id')
 329     assert_equal [comments(:does_it_hurt)], assert_no_queries { author.special_post_comments }
 330   end
 331
 332   def test_eager_with_has_many_through_an_sti_join_model_with_conditions_on_both
 333     author = Author.find(:first, :include => :special_nonexistant_post_comments, :order => 'authors.id')
 334     assert_equal [], author.special_nonexistant_post_comments
 335   end
 336
 337   def test_eager_with_has_many_through_join_model_with_conditions
 338     assert_equal Author.find(:first, :include => :hello_post_comments,
 339                              :order => 'authors.id').hello_post_comments.sort_by(&:id),
 340                  Author.find(:first, :order => 'authors.id').hello_post_comments.sort_by(&:id)
 341   end
 342
 343   def test_eager_with_has_many_through_join_model_with_conditions_on_top_level
 344     assert_equal comments(:more_greetings), Author.find(authors(:david).id, :include => :comments_with_order_and_conditions).comments_with_order_and_conditions.first
 345   end
 346
 347   def test_eager_with_has_many_through_join_model_with_include
 348     author_comments = Author.find(authors(:david).id, :include => :comments_with_include).comments_with_include.to_a
 349     assert_no_queries do
 350       author_comments.first.post.title
 351     end
 352   end
 353
 354   def test_eager_with_has_many_and_limit
 355     posts = Post.find(:all, :order => 'posts.id asc', :include => [ :author, :comments ], :limit => 2)
 356     assert_equal 2, posts.size
 357     assert_equal 3, posts.inject(0) { |sum, post| sum += post.comments.size }
 358   end
 359
 360   def test_eager_with_has_many_and_limit_and_conditions
 361     if current_adapter?(:OpenBaseAdapter)
 362       posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "FETCHBLOB(posts.body) = 'hello'", :order => "posts.id")
 363     else
 364       posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.body = 'hello'", :order => "posts.id")
 365     end
 366     assert_equal 2, posts.size
 367     assert_equal [4,5], posts.collect { |p| p.id }
 368   end
 369
 370   def test_eager_with_has_many_and_limit_and_conditions_array
 371     if current_adapter?(:OpenBaseAdapter)
 372       posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "FETCHBLOB(posts.body) = ?", 'hello' ], :order => "posts.id")
 373     else
 374       posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "posts.body = ?", 'hello' ], :order => "posts.id")
 375     end
 376     assert_equal 2, posts.size
 377     assert_equal [4,5], posts.collect { |p| p.id }
 378   end
 379
 380   def test_eager_with_has_many_and_limit_and_conditions_array_on_the_eagers
 381     posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
 382     assert_equal 2, posts.size
 383
 384     count = Post.count(:include => [ :author, :comments ], :limit => 2, :conditions => [ "authors.name = ?", 'David' ])
 385     assert_equal count, posts.size
 386   end
 387
 388   def test_eager_with_has_many_and_limit_ond_high_offset
 389     posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
 390     assert_equal 0, posts.size
 391   end
 392
 393   def test_count_eager_with_has_many_and_limit_ond_high_offset
 394     posts = Post.count(:all, :include => [ :author, :comments ], :limit => 2, :offset => 10, :conditions => [ "authors.name = ?", 'David' ])
 395     assert_equal 0, posts
 396   end
 397
 398   def test_eager_with_has_many_and_limit_with_no_results
 399     posts = Post.find(:all, :include => [ :author, :comments ], :limit => 2, :conditions => "posts.title = 'magic forest'")
 400     assert_equal 0, posts.size
 401   end
 402
 403   def test_eager_count_performed_on_a_has_many_association_with_multi_table_conditional
 404     author = authors(:david)
 405     author_posts_without_comments = author.posts.select { |post| post.comments.blank? }
 406     assert_equal author_posts_without_comments.size, author.posts.count(:all, :include => :comments, :conditions => 'comments.id is null')
 407   end
 408
 409   def test_eager_count_performed_on_a_has_many_through_association_with_multi_table_conditional
 410     person = people(:michael)
 411     person_posts_without_comments = person.posts.select { |post| post.comments.blank? }
 412     assert_equal person_posts_without_comments.size, person.posts_with_no_comments.count
 413   end
 414
 415   def test_eager_with_has_and_belongs_to_many_and_limit
 416     posts = Post.find(:all, :include => :categories, :order => "posts.id", :limit => 3)
 417     assert_equal 3, posts.size
 418     assert_equal 2, posts[0].categories.size
 419     assert_equal 1, posts[1].categories.size
 420     assert_equal 0, posts[2].categories.size
 421     assert posts[0].categories.include?(categories(:technology))
 422     assert posts[1].categories.include?(categories(:general))
 423   end
 424
 425   def test_eager_with_has_many_and_limit_and_conditions_on_the_eagers
 426     posts = authors(:david).posts.find(:all,
 427       :include    => :comments,
 428       :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
 429       :limit      => 2
 430     )
 431     assert_equal 2, posts.size
 432
 433     count = Post.count(
 434       :include    => [ :comments, :author ],
 435       :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
 436       :limit      => 2
 437     )
 438     assert_equal count, posts.size
 439   end
 440
 441   def test_eager_with_has_many_and_limit_and_scoped_conditions_on_the_eagers
 442     posts = nil
 443     Post.with_scope(:find => {
 444       :include    => :comments,
 445       :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'"
 446     }) do
 447       posts = authors(:david).posts.find(:all, :limit => 2)
 448       assert_equal 2, posts.size
 449     end
 450
 451     Post.with_scope(:find => {
 452       :include    => [ :comments, :author ],
 453       :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')"
 454     }) do
 455       count = Post.count(:limit => 2)
 456       assert_equal count, posts.size
 457     end
 458   end
 459
 460   def test_eager_with_has_many_and_limit_and_scoped_and_explicit_conditions_on_the_eagers
 461     Post.with_scope(:find => { :conditions => "1=1" }) do
 462       posts = authors(:david).posts.find(:all,
 463         :include    => :comments,
 464         :conditions => "comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment'",
 465         :limit      => 2
 466       )
 467       assert_equal 2, posts.size
 468
 469       count = Post.count(
 470         :include    => [ :comments, :author ],
 471         :conditions => "authors.name = 'David' AND (comments.body like 'Normal%' OR comments.#{QUOTED_TYPE}= 'SpecialComment')",
 472         :limit      => 2
 473       )
 474       assert_equal count, posts.size
 475     end
 476   end
 477
 478   def test_eager_with_scoped_order_using_association_limiting_without_explicit_scope
 479     posts_with_explicit_order = Post.find(:all, :conditions => 'comments.id is not null', :include => :comments, :order => 'posts.id DESC', :limit => 2)
 480     posts_with_scoped_order = Post.with_scope(:find => {:order => 'posts.id DESC'}) do
 481       Post.find(:all, :conditions => 'comments.id is not null', :include => :comments, :limit => 2)
 482     end
 483     assert_equal posts_with_explicit_order, posts_with_scoped_order
 484   end
 485
 486   def test_eager_association_loading_with_habtm
 487     posts = Post.find(:all, :include => :categories, :order => "posts.id")
 488     assert_equal 2, posts[0].categories.size
 489     assert_equal 1, posts[1].categories.size
 490     assert_equal 0, posts[2].categories.size
 491     assert posts[0].categories.include?(categories(:technology))
 492     assert posts[1].categories.include?(categories(:general))
 493   end
 494
 495   def test_eager_with_inheritance
 496     posts = SpecialPost.find(:all, :include => [ :comments ])
 497   end
 498
 499   def test_eager_has_one_with_association_inheritance
 500     post = Post.find(4, :include => [ :very_special_comment ])
 501     assert_equal "VerySpecialComment", post.very_special_comment.class.to_s
 502   end
 503
 504   def test_eager_has_many_with_association_inheritance
 505     post = Post.find(4, :include => [ :special_comments ])
 506     post.special_comments.each do |special_comment|
 507       assert_equal "SpecialComment", special_comment.class.to_s
 508     end
 509   end
 510
 511   def test_eager_habtm_with_association_inheritance
 512     post = Post.find(6, :include => [ :special_categories ])
 513     assert_equal 1, post.special_categories.size
 514     post.special_categories.each do |special_category|
 515       assert_equal "SpecialCategory", special_category.class.to_s
 516     end
 517   end
 518
 519   def test_eager_with_has_one_dependent_does_not_destroy_dependent
 520     assert_not_nil companies(:first_firm).account
 521     f = Firm.find(:first, :include => :account,
 522             :conditions => ["companies.name = ?", "37signals"])
 523     assert_not_nil f.account
 524     assert_equal companies(:first_firm, :reload).account, f.account
 525   end
 526
 527   def test_eager_with_multi_table_conditional_properly_counts_the_records_when_using_size
 528     author = authors(:david)
 529     posts_with_no_comments = author.posts.select { |post| post.comments.blank? }
 530     assert_equal posts_with_no_comments.size, author.posts_with_no_comments.size
 531     assert_equal posts_with_no_comments, author.posts_with_no_comments
 532   end
 533
 534   def test_eager_with_invalid_association_reference
 535     assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
 536       post = Post.find(6, :include=> :monkeys )
 537     }
 538     assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
 539       post = Post.find(6, :include=>[ :monkeys ])
 540     }
 541     assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys") {
 542       post = Post.find(6, :include=>[ 'monkeys' ])
 543     }
 544     assert_raises(ActiveRecord::ConfigurationError, "Association was not found; perhaps you misspelled it?  You specified :include => :monkeys, :elephants") {
 545       post = Post.find(6, :include=>[ :monkeys, :elephants ])
 546     }
 547   end
 548
 549   def find_all_ordered(className, include=nil)
 550     className.find(:all, :order=>"#{className.table_name}.#{className.primary_key}", :include=>include)
 551   end
 552
 553   def test_limited_eager_with_order
 554     assert_equal posts(:thinking, :sti_comments), Post.find(:all, :include => [:author, :comments], :conditions => "authors.name = 'David'", :order => 'UPPER(posts.title)', :limit => 2, :offset => 1)
 555     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)
 556   end
 557
 558   def test_limited_eager_with_multiple_order_columns
 559     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)
 560     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)
 561   end
 562
 563   def test_preload_with_interpolation
 564     assert_equal [comments(:greetings)], Post.find(posts(:welcome).id, :include => :comments_with_interpolated_conditions).comments_with_interpolated_conditions
 565   end
 566
 567   def test_polymorphic_type_condition
 568     post = Post.find(posts(:thinking).id, :include => :taggings)
 569     assert post.taggings.include?(taggings(:thinking_general))
 570     post = SpecialPost.find(posts(:thinking).id, :include => :taggings)
 571     assert post.taggings.include?(taggings(:thinking_general))
 572   end
 573
 574   def test_eager_with_multiple_associations_with_same_table_has_many_and_habtm
 575     # Eager includes of has many and habtm associations aren't necessarily sorted in the same way
 576     def assert_equal_after_sort(item1, item2, item3 = nil)
 577       assert_equal(item1.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id})
 578       assert_equal(item3.sort{|a,b| a.id <=> b.id}, item2.sort{|a,b| a.id <=> b.id}) if item3
 579     end
 580     # Test regular association, association with conditions, association with
 581     # STI, and association with conditions assured not to be true
 582     post_types = [:posts, :other_posts, :special_posts]
 583     # test both has_many and has_and_belongs_to_many
 584     [Author, Category].each do |className|
 585       d1 = find_all_ordered(className)
 586       # test including all post types at once
 587       d2 = find_all_ordered(className, post_types)
 588       d1.each_index do |i|
 589         assert_equal(d1[i], d2[i])
 590         assert_equal_after_sort(d1[i].posts, d2[i].posts)
 591         post_types[1..-1].each do |post_type|
 592           # test including post_types together
 593           d3 = find_all_ordered(className, [:posts, post_type])
 594           assert_equal(d1[i], d3[i])
 595           assert_equal_after_sort(d1[i].posts, d3[i].posts)
 596           assert_equal_after_sort(d1[i].send(post_type), d2[i].send(post_type), d3[i].send(post_type))
 597         end
 598       end
 599     end
 600   end
 601
 602   def test_eager_with_multiple_associations_with_same_table_has_one
 603     d1 = find_all_ordered(Firm)
 604     d2 = find_all_ordered(Firm, :account)
 605     d1.each_index do |i|
 606       assert_equal(d1[i], d2[i])
 607       assert_equal(d1[i].account, d2[i].account)
 608     end
 609   end
 610
 611   def test_eager_with_multiple_associations_with_same_table_belongs_to
 612     firm_types = [:firm, :firm_with_basic_id, :firm_with_other_name, :firm_with_condition]
 613     d1 = find_all_ordered(Client)
 614     d2 = find_all_ordered(Client, firm_types)
 615     d1.each_index do |i|
 616       assert_equal(d1[i], d2[i])
 617       firm_types.each { |type| assert_equal(d1[i].send(type), d2[i].send(type)) }
 618     end
 619   end
 620   def test_eager_with_valid_association_as_string_not_symbol
 621     assert_nothing_raised { Post.find(:all, :include => 'comments') }
 622   end
 623
 624   def test_eager_with_floating_point_numbers
 625     assert_queries(2) do
 626       # Before changes, the floating point numbers will be interpreted as table names and will cause this to run in one query
 627       Comment.find :all, :conditions => "123.456 = 123.456", :include => :post
 628     end
 629   end
 630
 631   def test_preconfigured_includes_with_belongs_to
 632     author = posts(:welcome).author_with_posts
 633     assert_no_queries {assert_equal 5, author.posts.size}
 634   end
 635
 636   def test_preconfigured_includes_with_has_one
 637     comment = posts(:sti_comments).very_special_comment_with_post
 638     assert_no_queries {assert_equal posts(:sti_comments), comment.post}
 639   end
 640
 641   def test_preconfigured_includes_with_has_many
 642     posts = authors(:david).posts_with_comments
 643     one = posts.detect { |p| p.id == 1 }
 644     assert_no_queries do
 645       assert_equal 5, posts.size
 646       assert_equal 2, one.comments.size
 647     end
 648   end
 649
 650   def test_preconfigured_includes_with_habtm
 651     posts = authors(:david).posts_with_categories
 652     one = posts.detect { |p| p.id == 1 }
 653     assert_no_queries do
 654       assert_equal 5, posts.size
 655       assert_equal 2, one.categories.size
 656     end
 657   end
 658
 659   def test_preconfigured_includes_with_has_many_and_habtm
 660     posts = authors(:david).posts_with_comments_and_categories
 661     one = posts.detect { |p| p.id == 1 }
 662     assert_no_queries do
 663       assert_equal 5, posts.size
 664       assert_equal 2, one.comments.size
 665       assert_equal 2, one.categories.size
 666     end
 667   end
 668
 669   def test_count_with_include
 670     if current_adapter?(:SybaseAdapter)
 671       assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "len(comments.body) > 15")
 672     elsif current_adapter?(:OpenBaseAdapter)
 673       assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "length(FETCHBLOB(comments.body)) > 15")
 674     else
 675       assert_equal 3, authors(:david).posts_with_comments.count(:conditions => "length(comments.body) > 15")
 676     end
 677   end
 678
 679   def test_load_with_sti_sharing_association
 680     assert_queries(2) do #should not do 1 query per subclass
 681       Comment.find :all, :include => :post
 682     end
 683   end
 684
 685   def test_conditions_on_join_table_with_include_and_limit
 686     assert_equal 3, Developer.find(:all, :include => 'projects', :conditions => 'developers_projects.access_level = 1', :limit => 5).size
 687   end
 688
 689   def test_order_on_join_table_with_include_and_limit
 690     assert_equal 5, Developer.find(:all, :include => 'projects', :order => 'developers_projects.joined_on DESC', :limit => 5).size
 691   end
 692 end