Add test_has_one_through_has_one_through_with_belongs_to_source_reflection

activerecord/test/cases/associations/nested_has_many_through_associations_test.rb

@@ -26,6 +26,7 @@
 require 'models/organization'
 require 'models/category'
 require 'models/categorization'
+require 'models/membership'
 
 # NOTE: Some of these tests might not really test "nested" HMT associations, as opposed to ones which
 # are just one level deep. But it's all the same thing really, as the "nested" code is being 
@@ -36,7 +37,7 @@ class NestedHasManyThroughAssociationsTest < ActiveRecord::TestCase
   fixtures :authors, :books, :posts, :subscriptions, :subscribers, :tags, :taggings,
            :people, :readers, :references, :jobs, :ratings, :comments, :members, :member_details,
            :member_types, :sponsors, :clubs, :organizations, :categories, :categories_posts,
-           :categorizations
+           :categorizations, :memberships
 
   # Through associations can either use the has_many or has_one macros.
   # 
@@ -241,9 +242,19 @@ def test_has_one_through_has_one_with_has_one_through_source_reflection
     assert_equal member_types(:founding), members.first.nested_member_type
   end
   
-  # TODO: has_one through
+  # has_one through
   # Source: belongs_to
   # Through: has_one through
+  def test_has_one_through_has_one_through_with_belongs_to_source_reflection
+    assert_equal categories(:general), members(:groucho).club_category
+    
+    members = Member.joins(:club_category).where('categories.id' => categories(:technology).id)
+    assert_equal [members(:blarpy_winkup)], members
+    
+    # TODO: Make this work
+    # members = Member.includes(:club_category)
+    # assert_equal categories(:general), members.first.club_category
+  end
 
   def test_distinct_has_many_through_a_has_many_through_association_on_source_reflection
     author = authors(:david)

activerecord/test/fixtures/clubs.yml

@@ -1,6 +1,8 @@
 boring_club:
   name: Banana appreciation society
+  category_id: 1
 moustache_club:
   name: Moustache and Eyebrow Fancier Club
 crazy_club:
-  name: Skull and bones
+  name: Skull and bones
+  category_id: 2

activerecord/test/fixtures/members.yml

@@ -6,3 +6,6 @@ some_other_guy:
   id: 2
   name: Englebert Humperdink
   member_type_id: 2
+blarpy_winkup:
+  id: 3
+  name: Blarpy Winkup

activerecord/test/fixtures/memberships.yml

@@ -18,3 +18,10 @@ other_guys_membership:
   member_id: 2
   favourite: false
   type: CurrentMembership
+
+blarpy_winkup_crazy_club:
+  joined_on: <%= 4.weeks.ago.to_s(:db) %>
+  club: crazy_club
+  member_id: 3
+  favourite: false
+  type: CurrentMembership

activerecord/test/models/club.rb

@@ -4,10 +4,11 @@ class Club < ActiveRecord::Base
   has_many :current_memberships
   has_one :sponsor
   has_one :sponsored_member, :through => :sponsor, :source => :sponsorable, :source_type => "Member"
+  belongs_to :category
 
   private
 
   def private_method
     "I'm sorry sir, this is a *private* club, not a *pirate* club"
   end
-end
+end

activerecord/test/models/member.rb

@@ -18,4 +18,6 @@ class Member < ActiveRecord::Base
   
   has_many :organization_member_details, :through => :member_detail
   has_many :organization_member_details_2, :through => :organization, :source => :member_details
+  
+  has_one :club_category, :through => :club, :source => :category
 end

activerecord/test/schema/schema.rb

@@ -113,6 +113,7 @@ def create_table(*args, &block)
 
   create_table :clubs, :force => true do |t|
     t.string :name
+    t.integer :category_id
   end
 
   create_table :collections, :force => true do |t|