actionIndex 中的参数给出错误 500，未定义的变量：YII 中的 id

Question

我已经在我的 actionView 和 actionIndex 中添加了下面的代码。代码在 actionView 中使用时工作正常，但在 actionIndex 上使用时抛出错误 500，未定义变量：id。为什么变量 id 仅在 actionIndex 上未定义？

actionView ...

public function actionView($id)  
{  

            $textDataProvider=new CActiveDataProvider('Text', array(  
        'criteria'=>array(  
            'condition'=>'articles_id=:articlesId',  
            'params'=>array(':articlesId'=>$this->loadModel($id)->id),  
        ),  
        'pagination'=>array(  
            'pageSize'=>1,  
        ),  
     ));  
    $this->render('view',array(  
        'model'=>$this->loadModel($id),  
                    'textDataProvider'=>$textDataProvider,  

    ));  
}

相同的代码，仅对 actionIndex 进行了小的更改 ...

public function actionIndex()
{       

        //get text information
        $textDataProvider=new CActiveDataProvider('Text', array(
        'criteria'=>array(
            'condition'=>'articles_id=:articlesId',
                             'params'=>array(':articlesId'=>$this->loadModel($id)->id),
                            'offset'=>'0',
                            'limit' => '1',


        ),
        ));
        //get criteria
        $criteria = new CDbCriteria();
        //$criteria->condition = 'country = :country';
        //$criteria->params = array (':country'=> $_GET['country']);
        $criteria->order = 'create_time desc';

        //get count
        $count = Articles::model()->count($criteria);

        //pagination
        $pages = new CPagination($count);
        $pages->setPageSize(10);
        $pages->applyLimit($criteria);

        //result to show on page
        $result = Articles::model()->findAll($criteria);
        $dataProvider = new CArrayDataProvider($result);



        $this->render('index', array(
    'dataProvider' => $dataProvider,
    'pages' => $pages,
        'textDataProvider'=>$textDataProvider,
        ));


   }

我已经对 actionIndex 进行了更改以尝试获取 id，如下所述。但是我还是能拿到id。

actionIndex ...

public 函数 actionIndex() {

    //get criteria
    $criteria = new CDbCriteria();
    //$criteria->condition = 'country = :country';
    //$criteria->params = array (':country'=> $_GET['country']);
    $criteria->order = 'create_time desc';

    //get count
    $count = Articles::model()->count($criteria);

    //pagination
    $pages = new CPagination($count);
    $pages->setPageSize(10);
    $pages->applyLimit($criteria);

    //result to show on page
    $result = Articles::model()->findAll($criteria);
    $dataProvider = new CArrayDataProvider($result);


    //$arr = array();
    foreach($result as $id)
    {
      $text_id = $id->id;
    }

     //get text information
    $criteria2=new CDbCriteria(array(                    
                            'order'=>'id desc',

                            'condition'=>'articles_id='.$text_id,

                    ));

    $textProvider=new CActiveDataProvider('Text', array(
        'criteria'=>$criteria2,
));  
    $this->render('index', array(
    'dataProvider' => $dataProvider,
    'pages' => $pages,
    'textProvider'=>$textProvider,
    ));
   }

Answer 1

很明显，您在使用 $id 时没有定义它！在 actionView 中，您有 $id 作为参数，但在 actionIndex 中您没有。所以 'params'=>array(':articlesId'=>$this->loadModel($id) 导致 Undefined variable 错误。为了解决这个问题，你也必须将 $id 传递给你的 actionIndex。

actionIndex 中的参数给出错误 500，未定义的变量：YII 中的 id

params in actionIndex giving Error 500, Undefined variable: id in YII

php

yii