change password in codeigniter - php

Question

Hi i write code for change password but it does not change the password in table
but make 0 current password.So what i do.Thanks
THis is my Model
function changepassword() {
$this->db->select('id');
$this->db->where('username', $this->session->userdata('username'));
$this->db->where('password', $this->input->post('OldPassword'));
$query = $this->db->get('mau_user');
if ($query->num_rows() > 0) {
$row = $query->row();
if ($row->id === $this->session->userdata('id')) {
$data = array(
'password' => $this->input->post('password')
);
$this->db->where('username', $this->session->userdata('username'));
$this->db->where('password', $this->input->post('OldPassword'));
if ($this->db->update('mau_user', $data)) {
return "Password Changed Successfully";

Answer 1

If in the db the field password is set as an integer, the default value is 0, so probably the value you're tryn' to update it's invalid, you should print the SQL and start debuggin from there....

Answer 2

in controller
function edit_password()
{
$uderid = $this->session->userdata('user_id');
// update data
if($_POST)
{
if($this->input->post('old_password')!=''){
$this->form_validation->set_rules('old_password','Old password', 'trim|required|xss_clean|addslashes|encode_php_tags |callback_oldpass_check');
$this->form_validation->set_rules('new_password','New password', 'trim|required|xss_clean|addslashes|encode_php_tags|min_length['.PASS_MIN_LEN.']|md5');
$this->form_validation->set_rules('conf_password', 'Confirm password', 'trim|required|xss_clean|addslashes|encode_php_tags|min_length['.PASS_MIN_LEN.']|matches[new_password]|md5');
if($this->form_validation->run() == TRUE)
{
$data =array( 'password' => $this->input->post('conf_password'));
$this->main->update('users','user_id',$uderid,$data);
$this->change_password('Password updated successfully');
}
else{
$this->change_password();
}
}
else{
redirect(base_url().'user' , '301');
}
}
}
function oldpass_check($oldpass)
{
$user_id = $this->session->userdata('user_id');
$result = $this->main->check_oldpassword($oldpass,$user_id);
if($result ==0)
{
$this->form_validation->set_message('oldpass_check', "%s doesn't match.");
return FALSE ;
}
else
{
return TRUE ;
}
}
Model
function check_oldpassword($oldpass,$user_id)
{
$this->db->where('user_id', $user_id);
$this->db->where('password', md5($oldpass));
$query = $this->db->get('users'); //data table
return $query->num_rows();
}