/**
* Set the WHERE clause
*
* @param $where
* @return Delete
*/
public function where($where = null)
{
if (null !== $where) {
if ($where instanceof Where) {
$this->where = $where;
} else {
if (null === $this->where) {
$this->where = (new Where($this->sql))->add($where);
} else {
$this->where->add($where);
}
}
}
if (null === $this->where) {
$this->where = new Where($this->sql);
}
return $this;
}
