public function __construct($table, $path, $exception_message)
{
$this->table = $table;
$this->exception_message = $exception_message;
$str = '';
$str .= 'Table : ' . $table . "\n";
$str .= 'Path : ' . $path . "\n";
$str .= 'Error : ' . $exception_message . "\n";
parent::__construct($str);
}