How to deal with CodeIgniter Error Number 1064? - php

Question

I'm trying to make a login system and I'm getting this database error
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SET last_activity = 1467333267, user_data = 'a:3:{s:9:\"user_data\";s:0:\"\"' at line 1
UPDATE SET last_activity = 1467333267, user_data = 'a:3:{s:9:\"user_data\";s:0:\"\";s:5:\"email\";s:16:\"ocyl28#yahoo.com\";s:12:\"is_logged_in\";i:1;}' WHERE session_id = '570d7ba3d7f11a9a35264ed276368480'
Filename: C:/xampp/htdocs/CodeIgniter/system/database/DB_driver.php
Line Number: 691
Here is my controller code:
class Template extends CI_Controller {
public function index()
{
$this->login();
}
public function login()
{
$this->load->view('Login Template.php');
}
public function admin()
{
if ($this->session->userdata('is_logged_in')) {
$this->load->view('Template 3.php');
}
else {
echo 'cannot login';
}
}
public function login_validation()
{
$this->load->library('form_validation');
$this->form_validation->set_rules('email' , 'Email', 'required|trim|callback_validate_credentials');
$this->form_validation->set_rules('password' , 'Password', 'required|md5|trim');
if ($this->form_validation->run()) {
$data = array (
'email' => $this->input->post('email'),
'is_logged_in' => 1
);
$this->session->set_userdata($data);
redirect('template/admin');
}
else
{
echo 'fail';
}
}
public function validate_credentials()
{
$this->load->model('users');
if ($this->users->can_log_in()) {
return true;
}
else
{
$this->form_validation->set_message('validate_credentials', 'fail to login');
return false;
}
}
public function about()
{
$this->load->view('About this site.php');
}
public function logout()
{
$this->session->sess_destroy();
redirect('template/login');
}
And here is my model code:
class Users extends CI_Model
{
public function can_log_in()
{
$this->db->where('email', $this->input->post('email'));
$this->db->where('password', md5($this->input->post('password')));
$query = $this->db->get('registered_users');
if ($query->num_rows() == 1) {
return true;
}
else
{
return false;
}
}

Answer 1

Table name is missing from your SQL statement.