django/django — pull request #1663 by benhuckvale (2013-09-23 13:59:28+00:00)
Title: Fixed #21120 -- More explicit text on using validators and link to writi...

#21120 -- I thought the best thing to do here was write a little bit more for clarification and also link to ref/validators as this already gives an example of how to use and write your own validator. Interestingly the forms/validation page had no other existing link to ref/validators.