/**
* Get the null or zero representation of a timestamp for the database driver.
*
* This method is provided for use where the query object is passed to a function for modification.
* If you have direct access to the database object, it is recommended you use the nullDate method directly.
*
* Usage:
* $query->where('modified_date <> '.$query->nullDate());
*
* @param boolean $quoted Optionally wraps the null date in database quotes (true by default).
*
* @return string Null or zero representation of a timestamp.
*
* @since 1.0
* @throws \RuntimeException
*/
public function nullDate($quoted = true)
{
if (!$this->db instanceof DatabaseDriver) {
throw new \RuntimeException('JLIB_DATABASE_ERROR_INVALID_DB_OBJECT');
}
$result = $this->db->getNullDate($quoted);
if ($quoted) {
return $this->db->quote($result);
}
return $result;
}
