function update_order($id,$old_order){

    //Update The order
    $query = $this->db->query("SELECT * FROM cat WHERE `cat_order`='$old_order' ");
    $row =  $query->row();

    $this->db->query("UPDATE cat SET cat_order='".$row->cat_order."' WHERE id='".$id."' ");
    $this->db->query("UPDATE cat SET cat_order='$old_order' WHERE id ='".$row->id."' ");

}

$sql = "UPDATE table SET column = ? WHERE id = ?";
$this->db->query($sql, array($value, $id));

$this->db->query(
  "UPDATE cat SET cat_order='".$row->cat_order."' WHERE id = " .$id );

$this->db->query(
  "UPDATE cat SET cat_order='$old_order' WHERE id = " . $row->id );

$this->db->where('id',$id);
$this->db->set('cat_order',$row->cat_order);
$this->db->update('cat');