yii2 利用小部件生成后台左边菜单栏
************ 模型层递归查询权限 ************
/**
* 递归方式查询权限
*/
public function getPrivilege()
{
$connection = \Yii::$app->db;
$top=$command = $connection->createCommand('SELECT * FROM privilege')->queryAll();
return $this->digui($top, $parent_id=0);
}
public function digui($top, $parent_id)
{
$child = array();
foreach ($top as $key => $v)
{
if($v['parent_id'] == $parent_id)
{
$child[] = $v;
}
}
if(empty($child))
{
return null;
}
foreach($child as $key => $v)
{
$second = $this->digui($top, $v['p_id']);
if($second)
{
$child[$key]['child'] = $second;
}
}
return $child;
}
************ 控制器层组合数组 ************
public function actionLeft(){
//查询所有权限
$pri = new Privilege();
$privilege = $pri->getPrivilege();
$child = array();
foreach ($privilege as $key => $val) {
if($val['child']){
foreach ($val['child'] as $k => $v) {
$child[$key][] = "<a href='index.php?r=".$v['controller'].'/'.$v['action']."' target='mainFrame' >".$v['privilege']."</a>";
}
} else {
unset($privilege[$key]);
}
}
//print_r($child);die;
return $this->render('left',['privilege'=>$privilege,'child'=>$child]);
}
************ 视图层引用部件 ************
<?php
//折叠
use yii\bootstrap\Collapse;
?>
<style>
#yii-debug-toolbar{display: none;}
</style>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>项目后台管理系统</title>
</head>
<body style="background:#4AA3D8">
<?php foreach($privilege as $k => $v){?>
<?php
echo Collapse::widget([
'items'=>[
[
'label'=>$v['privilege'],
'content'=>$child[$k],
]
],
'options'=>['style'=>['margin-bottom'=>'5px', 'left'=>'0']]
]);?>
<?php }?>
</body>
</html>
