function whereNot($column, $value = null)
{
$clone = clone $this;
// conditions in key-value array
if (is_array($column)) {
foreach ($column as $c => $params) {
$clone = $clone->whereNot($c, $params);
}
return $clone;
}
$clone->where[] = $this->db->isNot($column, $value);
return $clone;
}