Question

我有一个带连接的mysql查询，它工作正常。我想将结果传递给Yii2 ActiveDataProvider。我的Controller代码看起来像

`

public function actionIndex()
    {
        $theme = Theme::find();
        $query = "SELECT t.*,COUNT(d.id) AS total_downloads FROM `themes` AS T 
                            LEFT JOIN downloads AS D 
                            ON D.theme_id = T.id GROUP 
                            by t.id ORDER BY total_downloads DESC LIMIT 6";
            $connection=Yii::$app->db;  
            $trends = $connection->createCommand($query);
            $model = $trends->queryAll();
            $object = (object) $model;
        $ActiveDataProvider = new ActiveDataProvider(['query' => $object]);

        return $this->render('trendings',[
                    'ActiveDataProvider'=>$ActiveDataProvider,
                ]);
    }`

并查看文件代码`

    ListView::widget([
        'dataProvider' => $ActiveDataProvider,
        'options' => [
            'tag' => 'div',
            'class' => 'list-wrapper',
            'id' => 'list-wrapper',
        ],
        'pager' => [
            'firstPageLabel' => 'first',
            'lastPageLabel' => 'last',
            'prevPageLabel' => '<span class="glyphicon glyphicon-chevron-left"></span>',
            'nextPageLabel' => '<span class="glyphicon glyphicon-chevron-right"></span>',
             'maxButtonCount' => 3,
        ],
        // 'layout' => "{pager}\n{items}\n{summary}",
        'summary' => false,
        'itemView' => '_list',
    ]);
    ?>`

由于我已经通过了QueryAll，因此ActiveDataProvider没有调用并传递错误＆＃34;＆＃34;查询＆＃34; property必须是实现QueryInterface的类的实例，例如yii \ db \ Query或其子类＆＃34;

Answer 1

你没有通过queryAll()，你传递了一个函数queryAll()的结果，它是一个对象数组。并且不使用它：

$theme = Theme::find();

改变这个：

$query = "SELECT t.*,COUNT(d.id) AS total_downloads FROM `themes` AS T 
                            LEFT JOIN downloads AS D 
                            ON D.theme_id = T.id GROUP 
                            by t.id ORDER BY total_downloads DESC LIMIT 6";

为：

$theme->select = 'YOUR SELECT HERE';

不要使用queryAll()，只需将$theme对象传递给query param做ActiveDataProvider。

删除它：

        $connection=Yii::$app->db;  
        $trends = $connection->createCommand($query);
        $model = $trends->queryAll();
        $object = (object) $model;

如何在yii2中将MySql查询传递给ActiveDataProvider

1 个答案: