yiisoft/yii2 — pull request #3161 by ivan-kolmycheck (2014-04-18 08:35:41+00:00)
Title: GridView filter model error indication (review, please)

According to https://github.com/yiisoft/yii2/issues/3154

(My first contribution, I'll be glad if someone will point out the mistakes/errors, if I made any)