Question

我想将ArrayDataProvider与siteController的以下代码一起使用。我写了下面的代码，但它不起作用。这是我的actionIndex：

public function actionIndex()
{
        $query = new \yii\db\Query;
        $query->select('*')->from('business_main_categories');
        $query->createCommand();

        $dataProviders = [];

        foreach ($query as $category) {
            $dataProviders[] = new ArrayDataProvider([
                'allModels' => $category,
                'sort' => false,
                'pagination' => false,
            ]);
        }

        return $this->render('index', [
            'dataProvider' => $dataProviders,
        ]);
}

并希望它在gridView中迭代。所以，我写了下面的代码（我不知道它是否正确）：

这是我的index.php：

<?php
    $dataProviders[] = 'dataProvider';
    foreach ($dataProviders as $dataProvider) {
        echo GridView::widget([
            'dataProvider' => $dataProvider,
            'summary' => '',
            'columns' => [
                [
                        'attribute' => 'bmc_image',
                        'format' => 'html',
                        'label' => '',
                        'value' => function ($data) {
                            return Html::img($data['bmc_image'],
                                ['width' => '210px', 'height' => '190px']);
                        },
                    ],
                ]
       ]); 
    } 
?>

Answer 1

<强>控制器

Ref

<强>索引

public function actionIndex()
{
    $query = new \yii\db\Query;
    $dataProvider = new ArrayDataProvider([
    'allModels' =>$query->from('business_main_categories')->all(),
    ]);

    return $this->render('index', [
        'dataProvider' => $dataProvider,
    ]);
}

Answer 2

我在不使用gridview的情况下解决了我的问题。如下 -

我的SiteController -

public function actionIndex()
{
        $searchModel = new BusinessMainCategoriesSearch();
        $dataProvider = $searchModel->search(Yii::$app->request->queryParams);
        $dataProvider->pagination->pageSize = $dataProvider->getTotalCount();   //-1 : disable

        return $this->render('index', [
        'searchModel' => $searchModel,
        'dataProvider' => $dataProvider,
        ]);
}

使用此代码我从db获取dataProvider中的所有记录。（请注意，我在我的＆＃39; BusinessMainCategoriesSearch＆＃39;模型中使用ActiveDataProvider）

而且，我的index.php是 -

<?php
    $m = $dataProvider->getModels();
    foreach ($m as $dp) {
        echo "<img src = '".$dp['bmc_image']."' />";
        echo '<center><font color = "white">'.$dp['bmc_name'].'<font/></center>';
    } 
?>

对我来说很有用这是最简单的方法。

Yii2-advanced：ArrayDataProvider

2 个答案: