Codeigniter validation is not working

Question

I am new in codeigniter .I have done validation for my project .But it is not working fine .I have written my all code here .First is view page and second is my controller page.Please help anyone

<?php $this->load->helper('form');  
  echo validation_errors();  
  echo form_open('SM_in_controller/sm_login_action');
?>

  <input class="login_input" type="text" placeholder="Username" name="username" id="username"/>
  <input type="submit" value="Login" class="login_button" id="login_button"/>
</form>

and my controller

public function sm_login_action() {
    $this->load->helper(array('form', 'url'));
    $this->load->library('form_validation'); 
    $this->form_validation->set_rules('username', 'Username', 'required');
}

Please add some information about your error message / error logs to let us help you. — ack__
– ack__, Commented Apr 8, 2014 at 12:02
You need use $this->form_validation->run() to call to test. — 110precent
– 110precent, Commented Apr 8, 2014 at 12:02
hi 110precent , i added this $this->form_validation->run() . it is working fine .But i have set validation rules for fields na ...it is not working .Directly it is redirect to form action ... — user3510721
– user3510721, Commented Apr 8, 2014 at 12:05

wrivas · Accepted Answer · 2014-04-08 12:02:23Z

2

In your controller, when you call the "run" method is when the proccess is done:

public function sm_login_action() {
    $this->load->helper(array('form', 'url'));
    $this->load->library('form_validation'); 
    $this->form_validation->set_rules('username', 'Username', 'required');

   if( $this->form_validation->run() ) { // Return TRUE on success
        // Success
   } else {
      // Failure
  }
}

answered Apr 8, 2014 at 12:02

wrivas

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5 Comments

user3510721 Over a year ago

i want to check only this function $this->form_validation->set_rules('username', 'Username', 'required'); else everything is working ...

wrivas Over a year ago

If you do not call "run" method, does will not work as expected. After call "$this->form_validation->run();" should be work. try.

user3510721 Over a year ago

i tried ... before executing $this->form_validation->run() i have written code for validation right ? so first validation should work ..right ?

wrivas Over a year ago

How I said, look at this: ellislab.com/codeigniter/user-guide/libraries/…

user3510721 Over a year ago

thanks wrivas !! actually i did one mistake !! i was not redirecting to that page in which i written validation_error() .you are right .

Stack Programmer · Accepted Answer · 2019-04-29 13:58:05Z

2

<?php

class Form extends CI_Controller {

    public function index()
    {
        $this->load->helper(array('form', 'url'));

        $this->load->library('form_validation');

        $this->form_validation->set_rules('username', 'Username', 'callback_username_check');
        $this->form_validation->set_rules('password', 'Password', 'required');
        $this->form_validation->set_rules('passconf', 'Password Confirmation', 'required');
        $this->form_validation->set_rules('email', 'Email', 'required|is_unique[users.email]');

        if ($this->form_validation->run() == FALSE)
        {
            $this->load->view('myform');
        }
        else
        {
            $this->load->view('formsuccess');
        }
    }

    public function username_check($str)
    {
        if ($str == 'test')
        {
            $this->form_validation->set_message('username_check', 'The %s field can not be the word "test"');
            return FALSE;
        }
        else
        {
            return TRUE;
        }
    }

}
?>

try this for more details. https://www.codeigniter.com/user_guide/libraries/form_validation.html

edited Apr 29, 2019 at 13:58

Stack Programmer

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answered Apr 8, 2014 at 12:11

Nehil Mistry

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2 Comments

user3510721 Over a year ago

thnaks for giving help ...these thing i tried ...same code only i implemented .

user3510721 Over a year ago

no error is showing .it is redirecting to page which i written in my controller .See my controller here ...public function sm_login_action() { $this->load->helper(array('form', 'url')); $this->load->library('form_validation'); $this->form_validation->set_rules('username', 'Username', 'required'); if( $this->form_validation->run() ) { // Return TRUE on success $this->load->view('formsuccess'); } else { $this->load->view('formerror'); } }

Rebecca · Accepted Answer · 2014-04-09 05:35:17Z

0

Try this

<input class="login_input" type="text" placeholder="Username" name="username" id="username" required/>

Hope this helps

answered Apr 9, 2014 at 5:35

Rebecca

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