Yii - 如何基於用戶級別隱藏/查看CGridview中的按鈕？

Question

我試圖在CGridView查看或顯示按鈕（CButtonColumn），在我/views/file/admin.php：

.... 
//getLevel()==1 means ADMIN, getLevel==2 means common users 
array(
     'class'=>'bootstrap.widgets.TbButtonColumn', 
      'template'=>'{view}{update}{delete}', 'visible'=> (Yii::app()->user->getLevel()==1), 
      'deleteConfirmation'=>"js: 'Are you want to delete '+$(this).parent().parent().children(':first-child').text()+ '?'", 

    //I tried to modify with this code below, but there's nothing happens, 'view' button not 
    //display when I access as common user (getLevel()==2)  
      'buttons'=>array(
       'view' => array(
        'visible'=> Yii::app()->user->getLevel()==2, 
       ), 

      ) 
    ), 
.... 

WebUser.php

<?php 
class WebUser extends CWebUser{ 

protected $_model; 

protected function loadUser() 
{ 
    if ($this->_model === null) { 
      $this->_model = User::model()->findByPk($this->id); 
    } 
    return $this->_model; 
} 

function getLevel() 
{ 
    $user=$this->loadUser(); 
    if($user) 
     return $user->id_level; 
    return 100; 
} 
} 
?> 

我想這樣做的代碼，但「查看」按鈕不顯示，並且當我加載頁面時沒有錯誤。任何人都可以幫我解決這個問題嗎？非常感謝。

Answer 1

您已經設置僅上線

'template'=>'{view}{update}{delete}', 'visible'=> (Yii::app()->user->getLevel()==1), 

列可視性管理員用戶，以便

'view' => array(
     'visible'=> Yii::app()->user->getLevel()==2, 
    ), 

沒有效果。刪除第一個設置visible。另外，作爲@soju和@Rafay說visible應該是一個PHP表達式，因此它應該閱讀

'view' => array(
     'visible'=> 'Yii::app()->user->getLevel()==2', 
    ), 

Answer 2

在你的情況需要延長bootstrap.widgets.TbButtonColumn。

Yii::import('zii.widgets.grid.CButtonColumn'); 

class EButtonColumnWithRightsCheck extends CButtonColumn{ 

    public function init() { 
     //{view} {delete} {update} 
     $permissions = array(); 
     // Client.User.View 
     $permissions['view'] = Yii::app()->user->checkAccess(ucfirst($this->grid->controller->module->id) . '.' . ucfirst($this->grid->controller->id) . '.View'); 
     $permissions['delete'] = Yii::app()->user->checkAccess(ucfirst($this->grid->controller->module->id) . '.' . ucfirst($this->grid->controller->id) . '.Delete'); 
     $permissions['update'] = Yii::app()->user->checkAccess(ucfirst($this->grid->controller->module->id) . '.' . ucfirst($this->grid->controller->id) . '.Update'); 

     foreach ($permissions as $action => $permission) { 
      if ($permission === false) { 
       $this->template = str_replace('{' . $action . '}', '', $this->template); 
      } 
     } 

     // call parent to initialize other buttons 
     parent::init(); 
    } 

}