public function delete($id)
{
$item = $this->getById($id);
if (!$item) {
return false;
}
/**
* @event set_delete
*/
wa()->event('set_delete', $item);
$this->deleteById($id);
// delete related info
$set_products_model = new shopSetProductsModel();
$set_products_model->deleteByField('set_id', $id);
return true;
}