yii2中使用jquery作全选，反选，批删（练习）

控制器层中

namespace frontend\controllers;

use frontend\models\Topic;
use Yii;

use yii\data\Pagination;

public function actionTopic_show()
    {
        //获取此班级的评论
        $request=Yii::$app->request;
        $cid=$request->get('cid');
//        $topic=new Topic();
//        $arr=$topic->show_topic($cid);
        $topic=new Topic();
        $data = $topic->find()->andWhere(['cid'=>$cid]);  //这写要显示的数据
        //实例化分页类,带上参数(总条数,每页显示条数)
        $pages = new Pagination(['totalCount' =>$data->count(),'pageSize'=>'4']);
//        var_dump($arr);die;
        $model = $data->offset($pages->offset)->limit($pages->limit)->all();
        return $this->render('topic_show',['arr'=>$data,'m'=>$model,'pages'=>$pages]);
    }
    //批量删除
    public function actionAll_del()
    {
        $request=Yii::$app->request;
        $tid=$request->get('str');
        //传入model批删
        $topic=new Topic();
        $res=$topic->all_del($tid);
        var_dump($res);
    }

模型层中

使用gii创建就可以了

视图层中

<?PHP

use yii\widgets\LinkPager; //使用分页

use yii\widgets\ActiveForm;

use yii\helpers\Url;

use yii\helpers\Html;

?>
<script src="jquery-1.9.1.min.js"></script>
<table>
    <tr>
        <th>标题</th>
        <th>作者</th>
        <th>时间</th>
        <th>内容</th>
    </tr>
    <?php foreach($m as $key=>$value): ?>
        <tr>
            <td><input type="checkbox" name="box1[]" value="<?= $value['tid'] ?>"></td>
            <td><?= $value['title'] ?></td>
            <td><?= $value['t_name'] ?></td>
            <td><?= date("Y-m-d H:i:s",$value['time']) ?></td>
            <td><?= $value['content'] ?></td>
        </tr>
    <?php endforeach; ?>
    <tr>
        <td><button id="all_true">全选</button></td>
        <td><button id="all_false">全不选</button></td>
        <td><button id="all_delete">批删</button></td>
    </tr>
    <script>
        //全选
        $(function(){
            //全选
            $('#all_true').click(function () {
                $("input[name='box1[]']").each(function () {
                    $(this).prop('checked',true);
                })
            })
            //全不选
            $('#all_false').click(function () {
                $("input[name='box1[]']").each(function () {
                    $(this).prop('checked',false);
                })
            })
            //批删
            $('#all_delete').click(function () {
                var str='';
                //取到选中的值并移除
                $("input[name='box1[]']:checked").each(function () {
                    str+=','+$(this).val();
                    $(this).parent().parent().remove();
                })
                str=str.substr(1);
//                alert(str);
                //传入后台批量删除
                var url="http://localhost/day10.21/frontend/web/index.php?r=show/all_del"
                $.get(url,{str:str})
            })
        })
    </script>
</table>
<?= LinkPager::widget([
    'pagination' => $pages,
    'nextPageLabel'=>'下一页',
    'prevPageLabel'=>'上一页',
    'lastPageLabel'=>'尾页',
    'firstPageLabel'=>'首页',
]); ?>