public function checkAuthorization($username, $password)
 {
     $authorized = false;
     $query = $this->_db->queryAdapter()->select($this->_CP_Table, ['username' => $username, 'password' => UsersModel::ObfuscatePassword($password)], $this->queryAdapterPrefixes());
     $stmt = $this->_db->prepare($query[GC_AFIELD_QUERY]);
     if ($stmt->execute($query[GC_AFIELD_PARAMS])) {
         $row = $stmt->fetch();
         if ($row) {
             $authorized = $row["{$this->_CP_ColumnsPerfix}{$this->_CP_IDColumn}"];
         }
     } else {
         $this->_lastDBError = $stmt->errorInfo();
     }
     return $authorized;
 }