is_unique for codeigniter form validation

Question

I\'m trying to figure out how I can use the is_unique rule from the Codeigniter form validation library in the following situation.

I\'m trying to submi

Answer 1

This question is very old but maybe some new people experience this problem and this is the solution for it. I bet your are using Modular Extensions (HMVC) and you have created a new library, MY_Form_validation. You did id for callbacks, so you have this line of code on your class in order to use callbacks:

$this->form_validation->CI =& $this;

Well, the solution to this is whenever you want to use "is_unique" you must delete this line of code "$this->form_validation->CI =& $this;" from the class. I have experienced this problem and i fix it this way, it works fine now.

If you realy want to use callbacks "$this->form_validation->CI =& $this;", then do it only on required "methods" / "functions" where you don't want to use is_unique.