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在Yii GridView分页中保留复选框值

ajax

我有一个gridview,其中包含一个复选框列,也使用分页。当我在第一页中选中某些复选框并导航到第二页并在第二页中选中另一个复选框时,我在第一页中选中的选项不会保留在那里。分页期间可以保留复选框的值吗?

Gridview的代码是

$widget = $this->widget('zii.widgets.grid.CGridView', array(
    'dataProvider'     => $model->search(),
    'cssFile'          => Yii::app()->baseUrl . '/media/js/admin/css/admingridview.css',
    //'filter' => $model,
    'ajaxUpdate'       => true,
    'enablePagination' => true,
    'columns'          => array(
        array(
            'name'   => 'id',
            'header' => '#',
            'value'  => '$this->grid->dataProvider->pagination->currentPage * $this->grid->dataProvider->pagination->pageSize + ($row+1)',
        ),
        array(
            'class'          => 'CCheckBoxColumn',
            'selectableRows' => '2',
            'header' => 'Selected',
        ),
        array(
            'name'   => 'fb_user_id',
            'header' => 'FaceBook Id',
            'value'  => 'CHtml::encode($data->fb_user_id)',
        ),
        array(
            'name'   => 'first_name',
            'header' => 'Name',
            'value'  => 'CHtml::encode($data->first_name)',
        ),
        array(
            'name'   => 'email_id',
            'header' => 'Email',
            'value'  => 'CHtml::encode($data->email_id)',
        ),
        array(
            'name'   => 'demo',
            'type'   => 'raw',
            'header' => "Select",
            'value'  => 'CHtml::checkBox("email[]","",array("class"=>"check","value"=>$data->email_id))',
        ),
    ),
));

编辑:

用于记住gridview中所选选项的扩展,请检查此链接Selgridview

感谢 bool.dev


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2020-07-26

共1个答案

小编典典

您可以使用会话/ cookie来存储检查的值。我不太确定如何使Cookie正常工作,因此我将告诉您如何在会话中进行操作。特别是yii创建的用户会话。

现在要使用会话,我们需要将选中(和未选中)的id传递给控制器​​,因此,我们将在每次ajax更新时(即,在分页之间)修改要发送到控制器的数据,为此,我们利用CGridViewbeforeAjaxUpdate选项。

我还在代码中使用了CCheckBoxColumn
而不是
以下代码(当然,您可以根据自己的需要修改解决方案):

array(
     'name' => 'demo',
     'type'=>'raw',
     'header' => "Select",
     'value' => 'CHtml::checkBox("email[]","",array("class"=>"check","value"=>$data->email_id))',
),

GridView的变化:

<?php $this->widget('zii.widgets.grid.CGridView', array(
    // added id of grid-view for use with $.fn.yiiGridView.getChecked(containerID,columnID)
    'id'=>'first-grid',

    'dataProvider'=>$model->search(),
    'cssFile' => Yii::app()->baseUrl . '/media/js/admin/css/admingridview.css',

    // added this piece of code
    'beforeAjaxUpdate'=>'function(id,options){options.data={checkedIds:$.fn.yiiGridView.getChecked("first-grid","someChecks").toString(),
        uncheckedIds:getUncheckeds()};
        return true;}',

    'ajaxUpdate'=>true,
    'enablePagination' => true,
    'columns' => array(
            array(
                 'name' => 'id',
                 'header' => '#',
                 'value' => '$this->grid->dataProvider->pagination->currentPage * $this->grid->dataProvider->pagination->pageSize + ($row+1)',
            ),
            array(
                 'name' => 'fb_user_id',
                 'header' => 'FaceBook Id',
                 'value' => 'CHtml::encode($data->fb_user_id)',
            ),
            array(
                 'name' => 'first_name',
                 'header' => 'Name',
                 'value' => 'CHtml::encode($data->first_name)',
            ),
            array(
                 'name' => 'email_id',
                 'header' => 'Email',
                 'value' => 'CHtml::encode($data->email_id)',
            ),

            /* replaced the following with CCheckBoxColumn
              array(
                 'name' => 'demo',
                 'type'=>'raw',
                 'header' => "Select",
                 'value' =>'CHtml::checkBox("email[]","",array("class"=>"check","value"=>$data->email_id))',
              ),
            */

            array(
                 'class' => 'CCheckBoxColumn',
                 'selectableRows' => '2',
                 'header'=>'Selected',
                 'id'=>'someChecks', // need this id for use with $.fn.yiiGridView.getChecked(containerID,columnID)
                 'checked'=>'Yii::app()->user->getState($data->email_id)', // we are using the user session variable to store the checked row values, also considering here that email_ids are unique for your app, it would be best to use any field that is unique in the table
            ),
    ),
));
?>

请特别注意beforeAjaxUpdateCCheckBoxColumn和CCheckBoxColumn
的代码,在beforeAjaxUpdate中,我们将checkedIds所有已检查的id(在本例中为email_ids)的csv字符串作为传递,而uncheckedIds作为所有未检查的id
的csv字符串传递,我们将未检查的框通过调用一个函数getUncheckeds(),随后不久。请在这里注意,当我测试时,我使用(我表的)整数id字段作为唯一字段,而不是电子邮件字段。

getUncheckeds()可以像这样在gridview的视图文件中的任何位置注册该功能:

Yii::app()->clientScript->registerScript('getUnchecked', "
       function getUncheckeds(){
            var unch = [];
            /*corrected typo: $('[name^=someChec]') => $('[name^=someChecks]') */
            $('[name^=someChecks]').not(':checked,[name$=all]').each(function(){unch.push($(this).val());});
            return unch.toString();
       }
       "
);

在上面的函数中,请注意选择器and eachpush函数。

完成后,我们需要为此视图修改控制器/操作。

public function actionShowGrid(){
     // some code already existing
     // additional code follows
     if(isset($_GET['checkedIds'])){
          $chkArray=explode(",", $_GET['checkedIds']);
          foreach ($chkArray as $arow){
               Yii::app()->user->setState($arow,1);
          }
     }
     if(isset($_GET['uncheckedIds'])){
          $unchkArray=explode(",", $_GET['uncheckedIds']);
          foreach ($unchkArray as $arownon){
               Yii::app()->user->setState($arownon,0);
          }
     }
     // rest of the code namely render()
}

就是这样,它现在应该可以工作了。

2020-07-26