Prepopulate form data issue

[eluser]TommyHot[/eluser]
Hello,

I'm requesting data from a database and inserting it into form_input, but after I send the form, I get these strange errors:

A PHP Error was encountered
Severity: Notice
Message: Undefined index: is_array
Filename: libraries/Form_validation.php
Line Number: 325

A PHP Error was encountered
Severity: Notice
Message: Undefined index: rules
Filename: libraries/Form_validation.php
Line Number: 337

A PHP Error was encountered
Severity: Notice
Message: Undefined index: is_array
Filename: libraries/Form_validation.php
Line Number: 544

A PHP Error was encountered
Severity: Notice
Message: Undefined index: field
Filename: libraries/Form_validation.php
Line Number: 558

A PHP Error was encountered
Severity: Notice
Message: Undefined index:
Filename: libraries/Form_validation.php
Line Number: 558

and so on..

My code is as following:

Code:

<?php
// application/libraries/MY_form_validation.php  
if (!defined('BASEPATH')) exit('No direct script access allowed');

class MY_Form_validation extends CI_Form_validation {
        
    function MY_Form_validation($config = array())
    {
        parent::CI_Form_validation($config);
    }
    
    function set_default_values($field, $default = '')
    {
        
        if( is_array($field) )
        {
            foreach( $field as $key => $value )
            {        
                if( !@$_POST[$key] )
                {
                    $this->_field_data[$key]['postdata'] = $value;
                }
                else
                {
                    $this->_field_data[$key]['postdata'] = $_POST[$key];
                }
            }
        }
        else
        {
            if( !@$_POST[$field] )
            {
                $this->_field_data[$field]['postdata'] = $default;
            }
            else
            {
                $this->_field_data[$field]['postdata'] = $_POST[$field];
            }
        }
    }
}
?>

Code:

<?php
// controller file

class Clients extends Controller {
...
...
    function edit()
    {
        $this->load->library('form_validation');
        $this->load->helper('form');
        
        $data['title'] = 'Edit a Client';
        $data['page'] = "{$this->router->class}_cu";
        
        $this->db->select('client_id, client_name, client_email, client_phones, client_country, client_theme');
        $this->db->where('client_id', $this->uri->segment(4));
        $query = $this->db->get('{_}clients');
        
        $row = $query->row();
        $data['row'] = $row;
        
        $this->form_validation->set_default_values(
             array(
                 'name' => $row->client_name,
                 'email' => $row->client_email,
                 'phones' => $row->client_phones,
                 'theme' => $row->client_theme,
             )
         );

        if( $this->input->post('submit') )
        {    
        
            if( $this->form_validation->run('clients') == TRUE )
            {
                // some stuff
            }
        }
        
        $this->load->view('backend/backend_template',$data);
    }

}

Code:

//view file
...
...
<?=form_input(array('name' => 'name', 'id' => 'name'), set_value('name'));?>
<?=form_input(array('name' => 'name', 'id' => 'email'), set_value('email'));?>
<?=form_input(array('name' => 'name', 'id' => 'phones'), set_value('phones'));?>
<?=form_input(array('name' => 'name', 'id' => 'theme'), set_value('theme'));?>

All I want to do, is to pass an array (or 2 strings /field and value/) with fields and values and pass it to the set_default_values() method.

View file should at first outputs database items, and after you change the value of form_input and resubmit the form, it should use the _POST value instead of the database one.