Question

I am separating the logic of defining form validation rules into a library. i want to apply multiple callback functions on a single form element.

$this->form_validation->set_rules('email', 'email', 'callback_db_check|callback_valid_email');          

Now i don’t know how to do this. Because its not working i mean multiple callback are not working. But if i define single callback its working fine.

function db_check(){
    $this->CI->form_validation->set_message('db_check', 'Not found in db');
}

function valid_email(){
    $this->CI->form_validation->set_message('db_check', 'Invalid email');
}

This is just example code. I have extended form validation library so that i can define and call validation logic from my library . Any suggestion how i can do it?

Answer 1

$this->CI->form_validation->set_rules('email' , 'Email' , 'required|valid_email|max_length[255]|callback_email|callback_call_db'); 

p.s. your callback should always return true or false (your example doesnt return anything)