CODEWITHSUNDEEP
codeigniter
Alex Brend
Alex Brend

Reputation: 61

How to use callback from helper in codeigniter form validation?

My form validation code in controller is,

$this->form_validation->set_rules("name", "Name", "trim|callback_custom_validation");
if ($this->form_validation->run() !== FALSE) {}

My helper code is,

function custom_validation($str) {
   // validation logic
}

If i move this custom_validation function to controller then it is working but it is not working as helper. I need to call this function from controller and model so i am using helper. So how to call from helper?

Upvotes: 0

Views: 914

Answers (2)

atifone
atifone

Reputation: 51

Add your custom validation method to any model and use it in controllers and models like this example:

$this->form_validation->set_rules(
            'name', 'Name',
            array(
                'trim',
                'required',
                array($this->Mymodel_m, 'custom_validation')
             )
 ); 

if ($this->form_validation->run() !== FALSE) {...}

More info Callable: Use anything as a rule

Upvotes: 0

Joey
Joey

Reputation: 687

There are two ways to do this.

You should create a helper file in the application/helpers folder and place the function in the helper file. Then load the helper file in your controller.

custom_validation.php:

function custom_validation($str) {
   // validation logic
}

Inside controller:

$this->load->helper('custom_validation');

You can also extend the Form_validation library.

Create a file: application/libraries/MY_Form_validation.php

<?php
class MY_Form_validation extends CI_Form_validation {
    public function custom_validation($str) {
       // validation logic
    }
}

And then just load it as normal validation:

$this->form_validation->set_rules('name', 'Name', 'required|custom_validation');

Upvotes: 1

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