public function deleteAll($collection = '')
{
try {
$this->db->{$collection}->remove($this->wheres, array($this->querySafety => TRUE, 'justOne' => FALSE));
$this->clear();
return TRUE;
} catch (MongoCursorException $e) {
Sys_Common::showError("Delete of data into MongoDB failed: {$e->getMessage()}", 'MongoDB');
}
}
