public function update_volca()
{
$data = $this->input->post();
$id = $data['id'];
unset($data['id']);
unset($data['btn_submit']);
$this->form_validation->set_rules(Validation_rules::update_volca_rules());
if ($this->form_validation->run()) {
$this->t_volca->update_data_by_id($data, $id);
$this->noti('Data update successfully.', 'success');
redirect('admin/course/volca_list');
} else {
$list_of_errors = validate_load(Validation_rules::update_volca_rules());
$this->session->set_userdata('list_of_errors', json_encode($list_of_errors));
$this->session->set_userdata('error_mess_code', validation_errors());
$this->session->set_userdata('EDIT_VOLCA', $data);
redirect('admin/course/edit_volca/' . $id);
}
}
