suryee/application/admin/controller/SysMenu.php

<?php
namespace app\admin\controller;

use think\controller;
use think\Request;
use app\admin\model\SysMenu as SysMenuModel;

class SysMenu extends Base
{
    protected $model;

    public function __construct(Request $request = null)
    {
        parent::__construct($request);

        $this->model = new SysMenuModel();
    }

    public function index()
    {
        $data = $this->model->select();

        $data = obj_tree($data);

        $this->assign("data", $data);
        $this->assign("type", ['目录', '菜单', '按钮']);
        return $this->fetch();
    }

    public function save(Request $request = null, $id = 0)
    {
        if ($request->isPost()) {
            $param = $request->param();

            if ($param['name'] == '') {
                $this->error("目录名不能为空");
            }

            try {
                if ($param['id'] != 0) {
                    $this->model->save([
                        'pid' => $param['pid'],
                        'name' => $param['name'],
                        'url' => $param['url'],
                        'type' => $param['type'],
                        'icon' => $param['icon']
                    ], ['id' => $param['id']]);
                } else {
                    $this->model->save([
                        'pid' => $param['pid'],
                        'name' => $param['name'],
                        'url' => $param['url'],
                        'type' => $param['type'],
                        'icon' => $param['icon']
                    ]);
                }
            } catch (\Exception $e) {
                $msg = $e->getMessage();

                $this->error("错误提示:".$msg);
            }
            $this->success('操作成功', 'admin/sys_menu/index');
        } else {
            if ($id != 0) {
                $data = $this->model->find($id);
            } else {
                $data = [
                    'id' => 0,
                    'pid' => 0,
                    'name' => '',
                    'url' => '',
                    'perms' => '',
                    'type' => 0,
                    'icon' =>''
                ];
            }
            
            $data_permission = $this->model->field('id, pid, name')->where('type', '<>', 2)->select();
            $data_permission = obj_tree($data_permission);
            
            $this->assign('data', $data);
            $this->assign('data_permission', $data_permission);
            return $this->fetch();
        }
    }

    public function delete($id = null)
    {
        if (Request::instance()->isAjax()) {
            if ($this->model->where('pid', 'in', $id)->value('id')) {
                return ['code'=>0, 'msg'=>'此权限子权限不为空, 若要删除请先清空子权限'];
            }

            if ($this->model->destroy($id)) {
                return ['code' => 1,'msg'=>"删除成功"];
            } else {
                return ['code' => 0,'msg'=>"删除失败"];
            }
        }
    }
}