book_admin/application/admin/controller/manage/Key.php

<?php

namespace app\admin\controller\manage;

use app\common\controller\Backend;

use app\common\library\Redis;
use think\Controller;
use think\Request;

/**
 * 功能性管理
 *
 * @icon fa fa-circle-o
 */
class Key extends Backend
{
    
    /**
     * ManageKey模型对象
     */
    protected $model = null;

    /**
     * 无需鉴权的方法,但需要登录
     * @var array
     */
    protected $noNeedRight = ['check_key_exists'];

    public function _initialize()
    {
        parent::_initialize();
        $this->model = model('ManageKey');

    }
    
    /**
     * 默认生成的控制器所继承的父类中有index/add/edit/del/multi五个方法
     * 因此在当前控制器中可不用编写增删改查的代码,如果需要自己控制这部分逻辑
     * 需要将application/admin/library/traits/Backend.php中对应的方法复制到当前控制器,然后进行修改
     */

    /**
     * 检查KEY是否存在
     * @return mixed|string
     */
    public function check_key_exists(){
        if ($this->request->isAjax()) {
            $params = $this->request->post('row/a');
            $exists = $this->model->where($params)->field('key')->find();
            if($exists){
                return $this->error(__('The key has already existed'));
            }else{
                return $this->success();
            }
        }
    }

    /**
     * 编辑
     */
    public function edit($ids = NULL)
    {
        $row = $this->model->get($ids);
        if (!$row)
            $this->error(__('No Results were found'));
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds))
        {
            if (!in_array($row[$this->dataLimitField], $adminIds))
            {
                $this->error(__('You have no permission'));
            }
        }
        if ($this->request->isPost())
        {
            $redis = Redis::instance();
            $params = $this->request->post("row/a");
            if ($params)
            {
                /*
                 * 已经弃用,如果为了兼容老版可取消注释
                  foreach ($params as $k => &$v)
                  {
                  $v = is_array($v) ? implode(',', $v) : $v;
                  }
                 */
                try
                {
                    //是否采用模型验证
                    if ($this->modelValidate)
                    {
                        $name = basename(str_replace('\\', '/', get_class($this->model)));
                        $validate = is_bool($this->modelValidate) ? ($this->modelSceneValidate ? $name . '.edit' : true) : $this->modelValidate;
                        $row->validate($validate);
                    }
                    $result = $row->allowField(true)->save($params);
                    if ($result !== false)
                    {
                        $key   = 'K:' . $params['key'];
                        $redis->del($key);
                        $this->success();
                    }
                    else
                    {
                        $this->error($row->getError());
                    }
                }
                catch (\think\exception\PDOException $e)
                {
                    $this->error($e->getMessage());
                }
            }
            $this->error(__('Parameter %s can not be empty', ''));
        }
        $this->view->assign("row", $row);
        return $this->view->fetch();
    }

    /**
     * 删除
     */
    public function del($ids = "")
    {
        $redis = Redis::instance();
        if ($ids)
        {
            $pk = $this->model->getPk();
            $adminIds = $this->getDataLimitAdminIds();
            if (is_array($adminIds))
            {
                $count = $this->model->where($this->dataLimitField, 'in', $adminIds);
            }
            $list = $this->model->where($pk, 'in', $ids)->select();
            $count = 0;
            foreach ($list as $k => $v)
            {
                $key   = 'K:' . $v['key'];
                $redis->del($key);
                $count += $v->delete();
            }
            if ($count)
            {
                $this->success();
            }
            else
            {
                $this->error(__('No rows were deleted'));
            }
        }
        $this->error(__('Parameter %s can not be empty', 'ids'));
    }

}