我需要在数据库中计算我的购物车物品,没有型号的购物车物品。尝试这样:
$id = Yii::$app->request->post('id');
$total = Yii::$app->db->createCommand('SELECT COUNT(*) FROM cart_items WHERE user_id="'.$id.'"')->queryScalar();
返回 0,但有 2 行。
$total = Yii::$app->db->createCommand('SELECT COUNT(*) FROM cart_items WHERE user_id="19"')->queryScalar();
返回2。
如何将我的参数与发布数据绑定?
更新:
public function beforeAction($action) {
$this->enableCsrfValidation = false;
if (parent::beforeAction($action)){
Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
return true;
}
return false;
}
public function behaviors()
{
return [
'verbs' => [
'class' => VerbFilter::className(),
'actions' => [
'checkout' => ['post','get'],
],
],
];
}
你可以使用bindValues()
$total = Yii::$app->db->createCommand('SELECT COUNT(*)
FROM cart_items WHERE user_id=:id')
->bindValues([':id'=>$id])
->queryScalar();