public function readcategory($cate_id)
{
$cate = new Categories_model();
$query = $this->db->get_where('categories', array('id' => $cate_id));
if ($query->num_rows !== 1) {
throw new Exception("Cate id {$cate_id} not found in database");
}
$rows = $query->result();
$row = $rows[0];
$cate->load($row);
return $cate;
}
