Re-populating the form

[eluser]Unknown[/eluser]
Hello.

I'm not using the Form Validation library because creating my own rules isn't very flexible.

For example, I can not pass more additional info to my callbacks:

function username_check($username, <$this->post->input('user_id')>) {}

Or I'm wrong? There is a way to do this?

My question is if I don't use Form Validation library set_value('field_name') work in my views, or I need to use $this->post->input('field_name') instead?

Thanks.