Ticket #8801: hmt_collection_count_uniq.patch

activerecord/test/associations/join_model_test.rb

@@ -29 +29 @@
-  def test_has_many_uniq_through_join_model
-    assert_equal 2, authors(:mary).categorized_posts.size
-    assert_equal 1, authors(:mary).unique_categorized_posts.size
+    assert_equal 1, authors(:mary).unique_categorized_posts.count
-  end
-
-  def test_polymorphic_has_many

activerecord/lib/active_record/associations/has_many_through_association.rb

@@ -99 +99 @@
-      def sum(*args, &block)
-        calculate(:sum, *args, &block)
-      end
+      
+      def count(*args)
+        (@reflection.options[:uniq] ? load_target.size : @reflection.klass.send(:with_scope, construct_scope) { @reflection.klass.count(*args) }) 
+      end
-
-      protected
-        def method_missing(method, *args, &block)