如何在 yii gridview 中显示选中的记录

Question

你好，伟大的程序员，我正在使用 yii gridview 来显示学生记录，但我想将显示的记录限制为仅显示特定学生。请问我该怎么做...这是我的索引

<?= GridView::widget([
    'dataProvider' => $dataProvider,
    'filterModel' => $searchModel,
    'columns' => [
        ['class' => 'yii\grid\SerialColumn'],
         // 'id',
        'student.first_name',
        'student.last_name',
        'studentFaculty.faculty_name',
        'studentDept.department_name',
        'level',
        'stateOfOrigin.state_name',
        'image',

        ['class' => 'yii\grid\ActionColumn'],
    ],
]); ?>

下面是我的控制器

public function actionIndex()
{
    $searchModel = new StudentsSearch(); 
    $dataProvider = $searchModel->search(Yii::$app->request->queryParams)->ArrayHelper::map([ Students::find()->where('student_id'=> yii::$app->user->identity->id)->all()]);

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

Answer 1

将以下代码替换为控制器的索引操作

public function actionIndex(){

$searchModel = new StudentsSearch(); 
$dataProvider = $searchModel->search(Yii::$app->request->queryParams);
$dataProvider->andWhere(['student_id'=>yii::$app->user->identity->id]); 


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

}

Answer 2

您似乎在寻找这样的东西：

学生搜索模型

public function search($params, $filterStudentId)
{
    $query = Students::find();
    $query->andWhere(['student_id' => $filterStudentId]);
    // some code
    return $dataProvider;
}

控制器

public function actionIndex()
{
    $searchModel = new StudentsSearch();
    $params = Yii::$app->request->queryParams;
    $filterStudentId = Yii::$app->user->identity->id;
    $dataProvider = $searchModel->search($params, $filterStudentId);

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

Answer 3

最干净的方法是不向搜索函数添加任何额外的参数，因为你的 search() 函数也可以被管理员用于后端，如果你在这里添加额外的参数，你将需要修改它们在它被调用的所有地方，所以将你的 controller/action 更改为以下内容并在调用 StudentsSearch 模型

之前将 student_id 分配给 queryParams

public function actionIndex()
{
    $searchModel = new StudentsSearch(); 
    $queryParams=Yii::$app->request->queryParams;
    $queryParams['StudentsSearch']['student_id']=Yii::$app->user->id;
    $dataProvider = $searchModel->search($queryParams);

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

只需确保您的 StudentsSearch 模型字段 student_id 在返回 $dataProvider 之前在 search() 函数中被搜索到。

$query->andFilterWhere ( ['student_id' => $this->student_id ]);

如何在 yii gridview 中显示选中的记录

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