Fixed that eager loading queries should respect the :group option as well [DHH]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@7354 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activerecord/CHANGELOG

 *SVN*
 
+* Fixed that eager loading queries should respect the :group option as well [DHH]
+
 * Improve performance and functionality of the postgresql adapter.  Closes #8049 [roderickvd]
 
 	For more information see: http://dev.rubyonrails.org/ticket/8049
@@ -14,7 +16,6 @@
  - Move method definition to the class, instead of the instance
  - Always generate the readers, writers and predicate methods.
 
-
 * Perform a deep #dup on query cache results so that modifying activerecord attributes does not modify the cached attributes.  [Rick]
 
 # Ensure that has_many :through associations use a count query instead of loading the target when #size is called.  Closes #8800 [lifo]

activerecord/lib/active_record/associations.rb

@@ -1333,6 +1333,8 @@ def construct_finder_sql_for_association_limiting(options, join_dependency)
           end
 
           add_conditions!(sql, options[:conditions], scope)
+          sql << " GROUP BY #{options[:group]} " if options[:group]
+
           if options[:order]
             if is_distinct
               connection.add_order_by_for_association_limiting!(sql, options)
@@ -1340,7 +1342,9 @@ def construct_finder_sql_for_association_limiting(options, join_dependency)
               sql << "ORDER BY #{options[:order]}"
             end
           end
+
           add_limit!(sql, options, scope)
+
           return sanitize_sql(sql)
         end