Yii2 Gridview未在索引页中显示数据

我使用模型搜索来过滤和查询控制器中的所有数据，并将数据发送回视图。查询正常，但视图中无法显示数据。我不知道怎么解决它

这是我的模型搜索：

$user_id = Yii::$app->user->id;

$subquery = Workload::find()->select(['p.id', 'p.project_name', 'w.user_id', 'w.commit_time', 'w.comment', 'w.workload_type'])
    ->from(['project as p', 'workload as w'])
    ->where(['and','w.user_id = '.$user_id, 'p.id = w.project_id']);

$query = Workload::find()
    ->select(['workloadTeam.project_id', 'wp.project_name', 'workloadTeam.user_id', 'workloadTeam.commit_time', 'workloadTeam.week','workloadTeam.workload_type', 'workloadTeam.comment'])
    ->from(['wp' => $subquery]);

$query->join('INNER JOIN', 'workload as workloadTeam', 'wp.id = workloadTeam.project_id')->all();

$dataProvider = new ActiveDataProvider([
     'query' => $query,
]);

在我的控制器中：

    public function actionIndex()
        {
            $searchModel = new WorkloadSearch();
            $dataProvider = $searchModel->searchWorkloadofUser(Yii::$app->request->queryParams);

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

在我的视图索引页面中：

$gridColumns = [
    [
        'class' => 'yii\grid\SerialColumn',
        'contentOptions' => ['style' => 'width: 40px;']
    ],
    [
        'attribute' => 'user_id',
        'label' => Yii::t('app', 'Members Alias'),
        'value' => 'profile.full_name',
        'filter' => \app\modules\admin\models\User::profileDropDown(),
        'contentOptions' => ['style' => 'width: 150px;', 'class' => 'select2'],
        'filterOptions' => ['data-widget' => 'select2'],
        'format' => 'html',
    ],
    [
        'attribute' => 'project_id',
        'label' => Yii::t('app', 'Assigned Projects'),
        'value' => 'project.project_name',
        'filter' => \app\modules\admin\models\Project::projectWorkloadMemberDropdown(),
        'contentOptions' => ['style' => 'width: 150px;', 'class' => 'select2', 'placeholder' => 'Select your projects'],
        'filterOptions' => ['data-widget' => 'select2'],
        'format' => 'html',
    ],
    [
        'label' => 'Committed (hr.)',
        'value' => function ($model) {
            return $model->commit_time;
        }
    ],
    [
        'label' => 'Burned Amount (hr.)',
        'value' => function ($model) {
            return WorkLog::getTotalBurnedHoursofUser($model->user_id, $model->project_id);
        },
    ],
    [
        'attribute' => 'week',
        'filterInputOptions' => ['class' => 'form-control datepicker'],
        'value' => function ($model) {
            return $model->week;
        },
        'label' => Yii::t('app', 'From Date'),
    ],
    [
        'label' => 'Comment',
        'value' => function ($model) {
            return $model->comment;
        }
    ],
    [
        'label' => 'Workload Type',
//        'attribute' => 'workload_type',
        'filter' => \app\modules\admin\models\Workload::WorkloadTypeDropdownList(),
        'value' => function ($model) {
            return \app\modules\admin\models\Workload::$workload_type_label[$model->workload_type];
        }
    ]
];
?>

<?= GridView::widget([
        'dataProvider' => $dataProvider,
        'filterModel' => $searchModel,
        'columns' => $gridColumns,
    ]); ?>

---

我在代码中发现，您正在使用ActiveDataProvider不需要的all方法，因为all方法返回所有行，但您需要将查询对象传递给ActiveDataProvider

---

之后，您可以打印$dataProvider->models以进行调试，以便从数据库中获取行。如果您正在获取行，则意味着您现在可以将$dataProvider对象传递给GridView。

什么是不能显示数据？根本没有GridView，或者它显示0条记录？另外，请提供在视图中显示GridView的完整代码。我的意思是没有显示数据，但查询很好。查看页面正常显示，没有数据。请添加显示GridView的其余代码。这是查看页面完整代码的链接：最好将代码直接添加到答案，而不是将其发布到外部资源，尤其是当代码不太长时。但我现在可以看到GridView显示正常，一开始我想你可能忘记了echo，所以问题与0条记录有关。我建议检查生成的查询并将其与所需的查询进行比较。使用调试控制台。我删除了所有函数并打印$dataprovider->models，感觉很好，但当我在索引中传递给$dataprovider时，它不会显示数据。我不明白怎么做？

$user_id = Yii::$app->user->id;

$subquery = Workload::find()->select(['p.id', 'p.project_name', 'w.user_id', 'w.commit_time', 'w.comment', 'w.workload_type'])
    ->from(['project as p', 'workload as w'])
    ->where(['and','w.user_id = '.$user_id, 'p.id = w.project_id']);

$query = Workload::find()
    ->select(['workloadTeam.project_id', 'wp.project_name', 'workloadTeam.user_id', 'workloadTeam.commit_time', 'workloadTeam.week','workloadTeam.workload_type', 'workloadTeam.comment'])
    ->from(['wp' => $subquery]);

$query->join('INNER JOIN', 'workload as workloadTeam', 'wp.id = workloadTeam.project_id');

$dataProvider = new ActiveDataProvider([
     'query' => $query,
]);