PERF: Make use of existing index.

2016-11-25 11:13:51 +08:00 · 2016-11-25 11:13:51 +08:00 · fbc3fcc4af
parent 63a88ee6e7
commit fbc3fcc4af
1 changed files with 1 additions and 1 deletions
--- a/app/serializers/basic_group_serializer.rb
+++ b/app/serializers/basic_group_serializer.rb
@ -46,6 +46,6 @@ class BasicGroupSerializer < ApplicationSerializer
  private
  def fetch_group_user
-    @group_user ||= (object.group_users & scope.user.group_users).first
+    @group_user ||= object.group_users.find_by(user_id: scope.user.id)
  end
 end