public function execute()
{
$this->product_id = waRequest::get('id');
if (waRequest::post('product_id')) {
$related_model = new shopProductRelatedModel();
$type = waRequest::post('type');
$data = array('product_id' => $this->product_id, 'type' => $type, 'related_product_id' => waRequest::post('product_id'));
if (waRequest::post('delete')) {
$related_model->deleteByField($data);
} else {
$related_model->replace($data);
}
} else {
if (waRequest::post('cross_selling') !== null) {
$this->save('cross_selling');
}
if (waRequest::post('upselling') !== null) {
$this->save('upselling');
}
}
}
