ypw1380/Wikiful — pull request #1 by alvinkatojr (2014-03-25 17:03:56+00:00)
Title: Fixed faulty relationships

You made an error in your category model where you did not mention the relationship between your categories and articles. I have done that for you.

The code should run now. Whenever you get the error "unknown" it means something has not been defined. Remember that always.