1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
|
require "cases/helper"
require 'models/post'
require 'models/person'
require 'models/reference'
require 'models/job'
require 'models/reader'
require 'models/comment'
require 'models/rating'
require 'models/tag'
require 'models/tagging'
require 'models/author'
require 'models/owner'
require 'models/pet'
require 'models/toy'
require 'models/contract'
require 'models/company'
require 'models/developer'
require 'models/subscriber'
require 'models/book'
require 'models/subscription'
require 'models/essay'
require 'models/category'
require 'models/categorization'
require 'models/member'
require 'models/membership'
require 'models/club'
class HasManyThroughAssociationsTest < ActiveRecord::TestCase
fixtures :posts, :readers, :people, :comments, :authors, :categories, :taggings, :tags,
:owners, :pets, :toys, :jobs, :references, :companies, :members, :author_addresses,
:subscribers, :books, :subscriptions, :developers, :categorizations, :essays,
:categories_posts, :clubs, :memberships
# Dummies to force column loads so query counts are clean.
def setup
Person.create :first_name => 'gummy'
Reader.create :person_id => 0, :post_id => 0
end
def test_preload_sti_middle_relation
club = Club.create!(name: 'Aaron cool banana club')
member1 = Member.create!(name: 'Aaron')
member2 = Member.create!(name: 'Cat')
SuperMembership.create! club: club, member: member1
CurrentMembership.create! club: club, member: member2
club1 = Club.includes(:members).find_by_id club.id
assert_equal [member1, member2].sort_by(&:id),
club1.members.sort_by(&:id)
end
def make_model(name)
Class.new(ActiveRecord::Base) { define_singleton_method(:name) { name } }
end
def test_ordered_habtm
person_prime = Class.new(ActiveRecord::Base) do
def self.name; 'Person'; end
has_many :readers
has_many :posts, -> { order('posts.id DESC') }, :through => :readers
end
posts = person_prime.includes(:posts).first.posts
assert_operator posts.length, :>, 1
posts.each_cons(2) do |left,right|
assert_operator left.id, :>, right.id
end
end
def test_singleton_has_many_through
book = make_model "Book"
subscription = make_model "Subscription"
subscriber = make_model "Subscriber"
subscriber.primary_key = 'nick'
subscription.belongs_to :book, class: book
subscription.belongs_to :subscriber, class: subscriber
book.has_many :subscriptions, class: subscription
book.has_many :subscribers, through: :subscriptions, class: subscriber
anonbook = book.first
namebook = Book.find anonbook.id
assert_operator anonbook.subscribers.count, :>, 0
anonbook.subscribers.each do |s|
assert_instance_of subscriber, s
end
assert_equal namebook.subscribers.map(&:id).sort,
anonbook.subscribers.map(&:id).sort
end
def test_no_pk_join_table_append
lesson, _, student = make_no_pk_hm_t
sicp = lesson.new(:name => "SICP")
ben = student.new(:name => "Ben Bitdiddle")
sicp.students << ben
assert sicp.save!
end
def test_no_pk_join_table_delete
lesson, lesson_student, student = make_no_pk_hm_t
sicp = lesson.new(:name => "SICP")
ben = student.new(:name => "Ben Bitdiddle")
louis = student.new(:name => "Louis Reasoner")
sicp.students << ben
sicp.students << louis
assert sicp.save!
sicp.students.reload
assert_operator lesson_student.count, :>=, 2
assert_no_difference('student.count') do
assert_difference('lesson_student.count', -2) do
sicp.students.destroy(*student.all.to_a)
end
end
end
def test_no_pk_join_model_callbacks
lesson, lesson_student, student = make_no_pk_hm_t
after_destroy_called = false
lesson_student.after_destroy do
after_destroy_called = true
end
sicp = lesson.new(:name => "SICP")
ben = student.new(:name => "Ben Bitdiddle")
sicp.students << ben
assert sicp.save!
sicp.students.reload
sicp.students.destroy(*student.all.to_a)
assert after_destroy_called, "after destroy should be called"
end
def make_no_pk_hm_t
lesson = make_model 'Lesson'
student = make_model 'Student'
lesson_student = make_model 'LessonStudent'
lesson_student.table_name = 'lessons_students'
lesson_student.belongs_to :lesson, :class => lesson
lesson_student.belongs_to :student, :class => student
lesson.has_many :lesson_students, :class => lesson_student
lesson.has_many :students, :through => :lesson_students, :class => student
[lesson, lesson_student, student]
end
def test_pk_is_not_required_for_join
post = Post.includes(:scategories).first
post2 = Post.includes(:categories).first
assert_operator post.categories.length, :>, 0
assert_equal post2.categories, post.categories
end
def test_include?
person = Person.new
post = Post.new
person.posts << post
assert person.posts.include?(post)
end
def test_associate_existing
post = posts(:thinking)
person = people(:david)
assert_queries(1) do
post.people << person
end
assert_queries(1) do
assert post.people.include?(person)
end
assert post.reload.people(true).include?(person)
end
def test_delete_all_for_with_dependent_option_destroy
person = people(:david)
assert_equal 1, person.jobs_with_dependent_destroy.count
assert_no_difference 'Job.count' do
assert_difference 'Reference.count', -1 do
person.reload.jobs_with_dependent_destroy.delete_all
end
end
end
def test_delete_all_for_with_dependent_option_nullify
person = people(:david)
assert_equal 1, person.jobs_with_dependent_nullify.count
assert_no_difference 'Job.count' do
assert_no_difference 'Reference.count' do
person.reload.jobs_with_dependent_nullify.delete_all
end
end
end
def test_delete_all_for_with_dependent_option_delete_all
person = people(:david)
assert_equal 1, person.jobs_with_dependent_delete_all.count
assert_no_difference 'Job.count' do
assert_difference 'Reference.count', -1 do
person.reload.jobs_with_dependent_delete_all.delete_all
end
end
end
def test_concat
person = people(:david)
post = posts(:thinking)
post.people.concat [person]
assert_equal 1, post.people.size
assert_equal 1, post.people(true).size
end
def test_associate_existing_record_twice_should_add_to_target_twice
post = posts(:thinking)
person = people(:david)
assert_difference 'post.people.to_a.count', 2 do
post.people << person
post.people << person
end
end
def test_associate_existing_record_twice_should_add_records_twice
post = posts(:thinking)
person = people(:david)
assert_difference 'post.people.count', 2 do
post.people << person
post.people << person
end
end
def test_add_two_instance_and_then_deleting
post = posts(:thinking)
person = people(:david)
post.people << person
post.people << person
counts = ['post.people.count', 'post.people.to_a.count', 'post.readers.count', 'post.readers.to_a.count']
assert_difference counts, -2 do
post.people.delete(person)
end
assert !post.people.reload.include?(person)
end
def test_associating_new
assert_queries(1) { posts(:thinking) }
new_person = nil # so block binding catches it
assert_queries(0) do
new_person = Person.new :first_name => 'bob'
end
# Associating new records always saves them
# Thus, 1 query for the new person record, 1 query for the new join table record
assert_queries(2) do
posts(:thinking).people << new_person
end
assert_queries(1) do
assert posts(:thinking).people.include?(new_person)
end
assert posts(:thinking).reload.people(true).include?(new_person)
end
def test_associate_new_by_building
assert_queries(1) { posts(:thinking) }
assert_queries(0) do
posts(:thinking).people.build(:first_name => "Bob")
posts(:thinking).people.new(:first_name => "Ted")
end
# Should only need to load the association once
assert_queries(1) do
assert posts(:thinking).people.collect(&:first_name).include?("Bob")
assert posts(:thinking).people.collect(&:first_name).include?("Ted")
end
# 2 queries for each new record (1 to save the record itself, 1 for the join model)
# * 2 new records = 4
# + 1 query to save the actual post = 5
assert_queries(5) do
posts(:thinking).body += '-changed'
posts(:thinking).save
end
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Bob")
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Ted")
end
def test_build_then_save_with_has_many_inverse
post = posts(:thinking)
person = post.people.build(:first_name => "Bob")
person.save
post.reload
assert post.people.include?(person)
end
def test_build_then_save_with_has_one_inverse
post = posts(:thinking)
person = post.single_people.build(:first_name => "Bob")
person.save
post.reload
assert post.single_people.include?(person)
end
def test_delete_association
assert_queries(2){posts(:welcome);people(:michael); }
assert_queries(1) do
posts(:welcome).people.delete(people(:michael))
end
assert_queries(1) do
assert posts(:welcome).people.empty?
end
assert posts(:welcome).reload.people(true).empty?
end
def test_destroy_association
assert_no_difference "Person.count" do
assert_difference "Reader.count", -1 do
posts(:welcome).people.destroy(people(:michael))
end
end
assert posts(:welcome).reload.people.empty?
assert posts(:welcome).people(true).empty?
end
def test_destroy_all
assert_no_difference "Person.count" do
assert_difference "Reader.count", -1 do
posts(:welcome).people.destroy_all
end
end
assert posts(:welcome).reload.people.empty?
assert posts(:welcome).people(true).empty?
end
def test_should_raise_exception_for_destroying_mismatching_records
assert_no_difference ["Person.count", "Reader.count"] do
assert_raise(ActiveRecord::AssociationTypeMismatch) { posts(:welcome).people.destroy(posts(:thinking)) }
end
end
def test_delete_through_belongs_to_with_dependent_nullify
Reference.make_comments = true
person = people(:michael)
job = jobs(:magician)
reference = Reference.where(:job_id => job.id, :person_id => person.id).first
assert_no_difference ['Job.count', 'Reference.count'] do
assert_difference 'person.jobs.count', -1 do
person.jobs_with_dependent_nullify.delete(job)
end
end
assert_equal nil, reference.reload.job_id
ensure
Reference.make_comments = false
end
def test_delete_through_belongs_to_with_dependent_delete_all
Reference.make_comments = true
person = people(:michael)
job = jobs(:magician)
# Make sure we're not deleting everything
assert person.jobs.count >= 2
assert_no_difference 'Job.count' do
assert_difference ['person.jobs.count', 'Reference.count'], -1 do
person.jobs_with_dependent_delete_all.delete(job)
end
end
# Check that the destroy callback on Reference did not run
assert_equal nil, person.reload.comments
ensure
Reference.make_comments = false
end
def test_delete_through_belongs_to_with_dependent_destroy
Reference.make_comments = true
person = people(:michael)
job = jobs(:magician)
# Make sure we're not deleting everything
assert person.jobs.count >= 2
assert_no_difference 'Job.count' do
assert_difference ['person.jobs.count', 'Reference.count'], -1 do
person.jobs_with_dependent_destroy.delete(job)
end
end
# Check that the destroy callback on Reference ran
assert_equal "Reference destroyed", person.reload.comments
ensure
Reference.make_comments = false
end
def test_belongs_to_with_dependent_destroy
person = PersonWithDependentDestroyJobs.find(1)
# Create a reference which is not linked to a job. This should not be destroyed.
person.references.create!
assert_no_difference 'Job.count' do
assert_difference 'Reference.count', -person.jobs.count do
person.destroy
end
end
end
def test_belongs_to_with_dependent_delete_all
person = PersonWithDependentDeleteAllJobs.find(1)
# Create a reference which is not linked to a job. This should not be destroyed.
person.references.create!
assert_no_difference 'Job.count' do
assert_difference 'Reference.count', -person.jobs.count do
person.destroy
end
end
end
def test_belongs_to_with_dependent_nullify
person = PersonWithDependentNullifyJobs.find(1)
references = person.references.to_a
assert_no_difference ['Reference.count', 'Job.count'] do
person.destroy
end
references.each do |reference|
assert_equal nil, reference.reload.job_id
end
end
def test_update_counter_caches_on_delete
post = posts(:welcome)
tag = post.tags.create!(:name => 'doomed')
assert_difference ['post.reload.taggings_count', 'post.reload.tags_count'], -1 do
posts(:welcome).tags.delete(tag)
end
end
def test_update_counter_caches_on_delete_with_dependent_destroy
post = posts(:welcome)
tag = post.tags.create!(:name => 'doomed')
post.update_columns(tags_with_destroy_count: post.tags.count)
assert_difference ['post.reload.taggings_count', 'post.reload.tags_with_destroy_count'], -1 do
posts(:welcome).tags_with_destroy.delete(tag)
end
end
def test_update_counter_caches_on_delete_with_dependent_nullify
post = posts(:welcome)
tag = post.tags.create!(:name => 'doomed')
post.update_columns(tags_with_nullify_count: post.tags.count)
assert_no_difference 'post.reload.taggings_count' do
assert_difference 'post.reload.tags_with_nullify_count', -1 do
posts(:welcome).tags_with_nullify.delete(tag)
end
end
end
def test_update_counter_caches_on_replace_association
post = posts(:welcome)
tag = post.tags.create!(:name => 'doomed')
tag.tagged_posts << posts(:thinking)
tag.tagged_posts = []
post.reload
assert_equal(post.taggings.count, post.taggings_count)
end
def test_replace_association
assert_queries(4){posts(:welcome);people(:david);people(:michael); posts(:welcome).people(true)}
# 1 query to delete the existing reader (michael)
# 1 query to associate the new reader (david)
assert_queries(2) do
posts(:welcome).people = [people(:david)]
end
assert_queries(0){
assert posts(:welcome).people.include?(people(:david))
assert !posts(:welcome).people.include?(people(:michael))
}
assert posts(:welcome).reload.people(true).include?(people(:david))
assert !posts(:welcome).reload.people(true).include?(people(:michael))
end
def test_replace_order_is_preserved
posts(:welcome).people.clear
posts(:welcome).people = [people(:david), people(:michael)]
assert_equal [people(:david).id, people(:michael).id], posts(:welcome).readers.order('id').map(&:person_id)
# Test the inverse order in case the first success was a coincidence
posts(:welcome).people.clear
posts(:welcome).people = [people(:michael), people(:david)]
assert_equal [people(:michael).id, people(:david).id], posts(:welcome).readers.order('id').map(&:person_id)
end
def test_replace_by_id_order_is_preserved
posts(:welcome).people.clear
posts(:welcome).person_ids = [people(:david).id, people(:michael).id]
assert_equal [people(:david).id, people(:michael).id], posts(:welcome).readers.order('id').map(&:person_id)
# Test the inverse order in case the first success was a coincidence
posts(:welcome).people.clear
posts(:welcome).person_ids = [people(:michael).id, people(:david).id]
assert_equal [people(:michael).id, people(:david).id], posts(:welcome).readers.order('id').map(&:person_id)
end
def test_associate_with_create
assert_queries(1) { posts(:thinking) }
# 1 query for the new record, 1 for the join table record
# No need to update the actual collection yet!
assert_queries(2) do
posts(:thinking).people.create(:first_name=>"Jeb")
end
# *Now* we actually need the collection so it's loaded
assert_queries(1) do
assert posts(:thinking).people.collect(&:first_name).include?("Jeb")
end
assert posts(:thinking).reload.people(true).collect(&:first_name).include?("Jeb")
end
def test_associate_with_create_and_no_options
peeps = posts(:thinking).people.count
posts(:thinking).people.create(:first_name => 'foo')
assert_equal peeps + 1, posts(:thinking).people.count
end
def test_associate_with_create_with_through_having_conditions
impatient_people = posts(:thinking).impatient_people.count
posts(:thinking).impatient_people.create!(:first_name => 'foo')
assert_equal impatient_people + 1, posts(:thinking).impatient_people.count
end
def test_associate_with_create_exclamation_and_no_options
peeps = posts(:thinking).people.count
posts(:thinking).people.create!(:first_name => 'foo')
assert_equal peeps + 1, posts(:thinking).people.count
end
def test_create_on_new_record
p = Post.new
assert_raises(ActiveRecord::RecordNotSaved) { p.people.create(:first_name => "mew") }
assert_raises(ActiveRecord::RecordNotSaved) { p.people.create!(:first_name => "snow") }
end
def test_associate_with_create_and_invalid_options
firm = companies(:first_firm)
assert_no_difference('firm.developers.count') { assert_nothing_raised { firm.developers.create(:name => '0') } }
end
def test_associate_with_create_and_valid_options
firm = companies(:first_firm)
assert_difference('firm.developers.count', 1) { firm.developers.create(:name => 'developer') }
end
def test_associate_with_create_bang_and_invalid_options
firm = companies(:first_firm)
assert_no_difference('firm.developers.count') { assert_raises(ActiveRecord::RecordInvalid) { firm.developers.create!(:name => '0') } }
end
def test_associate_with_create_bang_and_valid_options
firm = companies(:first_firm)
assert_difference('firm.developers.count', 1) { firm.developers.create!(:name => 'developer') }
end
def test_push_with_invalid_record
firm = companies(:first_firm)
assert_raises(ActiveRecord::RecordInvalid) { firm.developers << Developer.new(:name => '0') }
end
def test_push_with_invalid_join_record
repair_validations(Contract) do
Contract.validate {|r| r.errors[:base] << 'Invalid Contract' }
firm = companies(:first_firm)
lifo = Developer.new(:name => 'lifo')
assert_raises(ActiveRecord::RecordInvalid) { firm.developers << lifo }
lifo = Developer.create!(:name => 'lifo')
assert_raises(ActiveRecord::RecordInvalid) { firm.developers << lifo }
end
end
def test_clear_associations
assert_queries(2) { posts(:welcome);posts(:welcome).people(true) }
assert_queries(1) do
posts(:welcome).people.clear
end
assert_queries(0) do
assert posts(:welcome).people.empty?
end
assert posts(:welcome).reload.people(true).empty?
end
def test_association_callback_ordering
Post.reset_log
log = Post.log
post = posts(:thinking)
post.people_with_callbacks << people(:michael)
assert_equal [
[:added, :before, "Michael"],
[:added, :after, "Michael"]
], log.last(2)
post.people_with_callbacks.push(people(:david), Person.create!(:first_name => "Bob"), Person.new(:first_name => "Lary"))
assert_equal [
[:added, :before, "David"],
[:added, :after, "David"],
[:added, :before, "Bob"],
[:added, :after, "Bob"],
[:added, :before, "Lary"],
[:added, :after, "Lary"]
],log.last(6)
post.people_with_callbacks.build(:first_name => "Ted")
assert_equal [
[:added, :before, "Ted"],
[:added, :after, "Ted"]
], log.last(2)
post.people_with_callbacks.create(:first_name => "Sam")
assert_equal [
[:added, :before, "Sam"],
[:added, :after, "Sam"]
], log.last(2)
post.people_with_callbacks = [people(:michael),people(:david), Person.new(:first_name => "Julian"), Person.create!(:first_name => "Roger")]
assert_equal((%w(Ted Bob Sam Lary) * 2).sort, log[-12..-5].collect(&:last).sort)
assert_equal [
[:added, :before, "Julian"],
[:added, :after, "Julian"],
[:added, :before, "Roger"],
[:added, :after, "Roger"]
], log.last(4)
post.people_with_callbacks.clear
assert_equal((%w(Michael David Julian Roger) * 2).sort, log.last(8).collect(&:last).sort)
end
def test_dynamic_find_should_respect_association_include
# SQL error in sort clause if :include is not included
# due to Unknown column 'comments.id'
assert Person.find(1).posts_with_comments_sorted_by_comment_id.find_by_title('Welcome to the weblog')
end
def test_count_with_include_should_alias_join_table
assert_equal 2, people(:michael).posts.includes(:readers).count
end
def test_inner_join_with_quoted_table_name
assert_equal 2, people(:michael).jobs.size
end
def test_get_ids
assert_equal [posts(:welcome).id, posts(:authorless).id].sort, people(:michael).post_ids.sort
end
def test_get_ids_for_has_many_through_with_conditions_should_not_preload
Tagging.create!(:taggable_type => 'Post', :taggable_id => posts(:welcome).id, :tag => tags(:misc))
ActiveRecord::Associations::Preloader.expects(:new).never
posts(:welcome).misc_tag_ids
end
def test_get_ids_for_loaded_associations
person = people(:michael)
person.posts(true)
assert_queries(0) do
person.post_ids
person.post_ids
end
end
def test_get_ids_for_unloaded_associations_does_not_load_them
person = people(:michael)
assert !person.posts.loaded?
assert_equal [posts(:welcome).id, posts(:authorless).id].sort, person.post_ids.sort
assert !person.posts.loaded?
end
def test_association_proxy_transaction_method_starts_transaction_in_association_class
Tag.expects(:transaction)
Post.first.tags.transaction do
# nothing
end
end
def test_has_many_association_through_a_belongs_to_association_where_the_association_doesnt_exist
post = Post.create!(:title => "TITLE", :body => "BODY")
assert_equal [], post.author_favorites
end
def test_has_many_association_through_a_belongs_to_association
author = authors(:mary)
post = Post.create!(:author => author, :title => "TITLE", :body => "BODY")
author.author_favorites.create(:favorite_author_id => 1)
author.author_favorites.create(:favorite_author_id => 2)
author.author_favorites.create(:favorite_author_id => 3)
assert_equal post.author.author_favorites, post.author_favorites
end
def test_merge_join_association_with_has_many_through_association_proxy
author = authors(:mary)
assert_nothing_raised { author.comments.ratings.to_sql }
end
def test_has_many_association_through_a_has_many_association_with_nonstandard_primary_keys
assert_equal 2, owners(:blackbeard).toys.count
end
def test_find_on_has_many_association_collection_with_include_and_conditions
post_with_no_comments = people(:michael).posts_with_no_comments.first
assert_equal post_with_no_comments, posts(:authorless)
end
def test_has_many_through_has_one_reflection
assert_equal [comments(:eager_sti_on_associations_vs_comment)], authors(:david).very_special_comments
end
def test_modifying_has_many_through_has_one_reflection_should_raise
[
lambda { authors(:david).very_special_comments = [VerySpecialComment.create!(:body => "Gorp!", :post_id => 1011), VerySpecialComment.create!(:body => "Eep!", :post_id => 1012)] },
lambda { authors(:david).very_special_comments << VerySpecialComment.create!(:body => "Hoohah!", :post_id => 1013) },
lambda { authors(:david).very_special_comments.delete(authors(:david).very_special_comments.first) },
].each {|block| assert_raise(ActiveRecord::HasManyThroughCantAssociateThroughHasOneOrManyReflection, &block) }
end
def test_has_many_association_through_a_has_many_association_to_self
sarah = Person.create!(:first_name => 'Sarah', :primary_contact_id => people(:susan).id, :gender => 'F', :number1_fan_id => 1)
john = Person.create!(:first_name => 'John', :primary_contact_id => sarah.id, :gender => 'M', :number1_fan_id => 1)
assert_equal sarah.agents, [john]
assert_equal people(:susan).agents.map(&:agents).flatten, people(:susan).agents_of_agents
end
def test_associate_existing_with_nonstandard_primary_key_on_belongs_to
Categorization.create(:author => authors(:mary), :named_category_name => categories(:general).name)
assert_equal categories(:general), authors(:mary).named_categories.first
end
def test_collection_build_with_nonstandard_primary_key_on_belongs_to
author = authors(:mary)
category = author.named_categories.build(:name => "Primary")
author.save
assert Categorization.exists?(:author_id => author.id, :named_category_name => category.name)
assert author.named_categories(true).include?(category)
end
def test_collection_create_with_nonstandard_primary_key_on_belongs_to
author = authors(:mary)
category = author.named_categories.create(:name => "Primary")
assert Categorization.exists?(:author_id => author.id, :named_category_name => category.name)
assert author.named_categories(true).include?(category)
end
def test_collection_delete_with_nonstandard_primary_key_on_belongs_to
author = authors(:mary)
category = author.named_categories.create(:name => "Primary")
author.named_categories.delete(category)
assert !Categorization.exists?(:author_id => author.id, :named_category_name => category.name)
assert author.named_categories(true).empty?
end
def test_collection_singular_ids_getter_with_string_primary_keys
book = books(:awdr)
assert_equal 2, book.subscriber_ids.size
assert_equal [subscribers(:first).nick, subscribers(:second).nick].sort, book.subscriber_ids.sort
end
def test_collection_singular_ids_setter
company = companies(:rails_core)
dev = Developer.first
company.developer_ids = [dev.id]
assert_equal [dev], company.developers
end
def test_collection_singular_ids_setter_with_string_primary_keys
assert_nothing_raised do
book = books(:awdr)
book.subscriber_ids = [subscribers(:second).nick]
assert_equal [subscribers(:second)], book.subscribers(true)
book.subscriber_ids = []
assert_equal [], book.subscribers(true)
end
end
def test_collection_singular_ids_setter_raises_exception_when_invalid_ids_set
company = companies(:rails_core)
ids = [Developer.first.id, -9999]
assert_raises(ActiveRecord::RecordNotFound) {company.developer_ids= ids}
end
def test_build_a_model_from_hm_through_association_with_where_clause
assert_nothing_raised { books(:awdr).subscribers.where(:nick => "marklazz").build }
end
def test_attributes_are_being_set_when_initialized_from_hm_through_association_with_where_clause
new_subscriber = books(:awdr).subscribers.where(:nick => "marklazz").build
assert_equal new_subscriber.nick, "marklazz"
end
def test_attributes_are_being_set_when_initialized_from_hm_through_association_with_multiple_where_clauses
new_subscriber = books(:awdr).subscribers.where(:nick => "marklazz").where(:name => 'Marcelo Giorgi').build
assert_equal new_subscriber.nick, "marklazz"
assert_equal new_subscriber.name, "Marcelo Giorgi"
end
def test_include_method_in_association_through_should_return_true_for_instance_added_with_build
person = Person.new
reference = person.references.build
job = reference.build_job
assert person.jobs.include?(job)
end
def test_include_method_in_association_through_should_return_true_for_instance_added_with_nested_builds
author = Author.new
post = author.posts.build
comment = post.comments.build
assert author.comments.include?(comment)
end
def test_through_association_readonly_should_be_false
assert !people(:michael).posts.first.readonly?
assert !people(:michael).posts.to_a.first.readonly?
end
def test_can_update_through_association
assert_nothing_raised do
people(:michael).posts.first.update!(title: "Can write")
end
end
def test_has_many_through_polymorphic_with_primary_key_option
assert_equal [categories(:general)], authors(:david).essay_categories
authors = Author.joins(:essay_categories).where('categories.id' => categories(:general).id)
assert_equal authors(:david), authors.first
assert_equal [owners(:blackbeard)], authors(:david).essay_owners
authors = Author.joins(:essay_owners).where("owners.name = 'blackbeard'")
assert_equal authors(:david), authors.first
end
def test_has_many_through_with_primary_key_option
assert_equal [categories(:general)], authors(:david).essay_categories_2
authors = Author.joins(:essay_categories_2).where('categories.id' => categories(:general).id)
assert_equal authors(:david), authors.first
end
def test_size_of_through_association_should_increase_correctly_when_has_many_association_is_added
post = posts(:thinking)
readers = post.readers.size
post.people << people(:michael)
assert_equal readers + 1, post.readers.size
end
def test_has_many_through_with_default_scope_on_join_model
assert_equal posts(:welcome).comments.order('id').to_a, authors(:david).comments_on_first_posts
end
def test_create_has_many_through_with_default_scope_on_join_model
category = authors(:david).special_categories.create(:name => "Foo")
assert_equal 1, category.categorizations.where(:special => true).count
end
def test_joining_has_many_through_with_uniq
mary = Author.joins(: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_joining_has_many_through_belongs_to
posts = Post.joins(:author_categorizations).order('posts.id').
where('categorizations.id' => categorizations(:mary_thinking_sti).id)
assert_equal [posts(:eager_other), posts(:misc_by_mary), posts(:other_by_mary)], posts
end
def test_select_chosen_fields_only
author = authors(:david)
assert_equal ['body', 'id'].sort, author.comments.select('comments.body').first.attributes.keys.sort
end
def test_get_has_many_through_belongs_to_ids_with_conditions
assert_equal [categories(:general).id], authors(:mary).categories_like_general_ids
end
def test_get_collection_singular_ids_on_has_many_through_with_conditions_and_include
person = Person.first
assert_equal person.posts_with_no_comment_ids, person.posts_with_no_comments.map(&:id)
end
def test_count_has_many_through_with_named_scope
assert_equal 2, authors(:mary).categories.count
assert_equal 1, authors(:mary).categories.general.count
end
def test_has_many_through_belongs_to_should_update_when_the_through_foreign_key_changes
post = posts(:eager_other)
post.author_categorizations
proxy = post.send(:association_instance_get, :author_categorizations)
assert !proxy.stale_target?
assert_equal authors(:mary).categorizations.sort_by(&:id), post.author_categorizations.sort_by(&:id)
post.author_id = authors(:david).id
assert proxy.stale_target?
assert_equal authors(:david).categorizations.sort_by(&:id), post.author_categorizations.sort_by(&:id)
end
def test_create_with_conditions_hash_on_through_association
member = members(:groucho)
club = member.clubs.create!
assert_equal true, club.reload.membership.favourite
end
def test_deleting_from_has_many_through_a_belongs_to_should_not_try_to_update_counter
post = posts(:welcome)
address = author_addresses(:david_address)
assert post.author_addresses.include?(address)
post.author_addresses.delete(address)
assert post[:author_count].nil?
end
def test_primary_key_option_on_source
post = posts(:welcome)
category = categories(:general)
Categorization.create!(:post_id => post.id, :named_category_name => category.name)
assert_equal [category], post.named_categories
assert_equal [category.name], post.named_category_ids # checks when target loaded
assert_equal [category.name], post.reload.named_category_ids # checks when target no loaded
end
def test_create_should_not_raise_exception_when_join_record_has_errors
repair_validations(Categorization) do
Categorization.validate { |r| r.errors[:base] << 'Invalid Categorization' }
Category.create(:name => 'Fishing', :authors => [Author.first])
end
end
def test_save_should_not_raise_exception_when_join_record_has_errors
repair_validations(Categorization) do
Categorization.validate { |r| r.errors[:base] << 'Invalid Categorization' }
c = Category.create(:name => 'Fishing', :authors => [Author.first])
c.save
end
end
def test_assign_array_to_new_record_builds_join_records
c = Category.new(:name => 'Fishing', :authors => [Author.first])
assert_equal 1, c.categorizations.size
end
def test_create_bang_should_raise_exception_when_join_record_has_errors
repair_validations(Categorization) do
Categorization.validate { |r| r.errors[:base] << 'Invalid Categorization' }
assert_raises(ActiveRecord::RecordInvalid) do
Category.create!(:name => 'Fishing', :authors => [Author.first])
end
end
end
def test_save_bang_should_raise_exception_when_join_record_has_errors
repair_validations(Categorization) do
Categorization.validate { |r| r.errors[:base] << 'Invalid Categorization' }
c = Category.new(:name => 'Fishing', :authors => [Author.first])
assert_raises(ActiveRecord::RecordInvalid) do
c.save!
end
end
end
def test_create_bang_returns_falsy_when_join_record_has_errors
repair_validations(Categorization) do
Categorization.validate { |r| r.errors[:base] << 'Invalid Categorization' }
c = Category.new(:name => 'Fishing', :authors => [Author.first])
assert !c.save
end
end
def test_preloading_empty_through_association_via_joins
person = Person.create!(:first_name => "Gaga")
person = Person.where(:id => person.id).where('readers.id = 1 or 1=1').references(:readers).includes(:posts).to_a.first
assert person.posts.loaded?, 'person.posts should be loaded'
assert_equal [], person.posts
end
def test_explicitly_joining_join_table
assert_equal owners(:blackbeard).toys, owners(:blackbeard).toys.with_pet
end
def test_has_many_through_with_polymorphic_source
post = tags(:general).tagged_posts.create! :title => "foo", :body => "bar"
assert_equal [tags(:general)], post.reload.tags
end
def test_has_many_through_obeys_order_on_through_association
owner = owners(:blackbeard)
assert owner.toys.to_sql.include?("pets.name desc")
assert_equal ["parrot", "bulbul"], owner.toys.map { |r| r.pet.name }
end
test "has many through associations on new records use null relations" do
person = Person.new
assert_no_queries do
assert_equal [], person.posts
assert_equal [], person.posts.where(body: 'omg')
assert_equal [], person.posts.pluck(:body)
assert_equal 0, person.posts.sum(:tags_count)
assert_equal 0, person.posts.count
end
end
test "has many through with default scope on the target" do
person = people(:michael)
assert_equal [posts(:thinking)], person.first_posts
readers(:michael_authorless).update(first_post_id: 1)
assert_equal [posts(:thinking)], person.reload.first_posts
end
end
|