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php - Undefined variable: dataProvider in yii2 kartik grid

问题描述

I'm trying to learn about kartik grid view and I'm having trouble with dataProvider.

Controller Code

this is the full controller code (not all though, i just show the code until code containing the dataProvider that i asked why it's undefined)

class SiteController extends Controller {
 public function actions()
 {
return [
    'error' => [
        'class' => 'yii\web\ErrorAction',
    ],
    'captcha' => [
        'class' => 'yii\captcha\CaptchaAction',
        'fixedVerifyCode' => YII_ENV_TEST ? 'testme' : null,
    ],
];
}


public function actionIndex()
{
if (!Yii::$app->user->isGuest){
if (Yii::$app->user->identity->akses === '1'){
    return $this->render('knpr/knpr-home');
} else if (Yii::$app->user->identity->akses === '2') {
    return $this->render('prov/prov-home');
} else if (Yii::$app->user->identity->akses === '3') {
    return $this->render('kabkot/kabkot-home');
} else if (Yii::$app->user->identity->akses === '4') {
    return $this->render('multiregional/multiregional-home');
}
  }
//return $this->render('home-knpr');
}


public function actionLogin()
{   $this->layout = 'main-login';
if (!Yii::$app->user->isGuest) {
    return $this->goHome();
   }

  $model = new LoginForm();
  if ($model->load(Yii::$app->request->post()) && $model->login()) {
    return $this->goBack();
   }
return $this->render('login', [
    'model' => $model,
]);
  }

public function actionLogout()
{
Yii::$app->user->logout();
return $this->redirect(['site/login'])->send();
 }

public function actionKnprHome()
 {
    $totalCount = Yii::$app->db->createCommand('SELECT COUNT(*) FROM m_admin') -> queryScalar();

$dataProvider = new SqlDataProvider([
    'db'  => Yii::$app->db,
    'sql' => 'SELECT * FROM m_admin',
    'totalCount' => $totalCount,
    'sort' => false,
    'pagination' => [
        'pageSize' => $count,
    ],
]);

return $this->render('knpr/knpr-home', array('dataProvider' => $dataProvider));

  }

View Code

<?php echo GridView::widget([ 
'dataProvider' => $dataProvider,
'showOnEmpty' => true,
'emptyCell' => true,
'column' => [
    'username',
    'password',
    'akses',
    'kode_daerah',
    'authKey',
    'id',
    ],
'pjax' => true,
]);   ?>

and the output is :

Undefined variable: dataProvider

error : undefined var : dataProvider

more

more

more

Please suggest.

标签： phpyii-extensionskartik-v

解决方案

问题解决了，我将第 65 行更改为 return $this->redirect(['site/knpr-home']);

并删除了视图站点中的所有列变量

<div>
<?php echo GridView::widget([ 
'dataProvider' => $dataProvider,
'showOnEmpty' => true,
'emptyCell' => true,

'pjax' => true,
]); ?> </div>

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