yii2实现后端分页和模糊查询

男娘i 2021-12-10 10:39 524阅读 0赞

注：这里说的是前后端分离的方式，前端可以用vue+element,不管用什么，只要能把需要的参数传给后端就OK

1.前端需要传的主要参数包括：

listQuery: { //动态请求table数据时传递的参数
            page_no: 1, //页码
            page_size: 10,//每页显示条数
            role: null,//角色--选填
            username: null,//用户名--选填
            partantuser: getUserName(),//上级用户名--选填
          },

2.下面开始后端获取参数并进行模糊查询和分页后返回

在controller中获取到参数并传给model进行处理,然后获取到数据并返给前端

public function actionGetalluser()
        {
            $request = Yii::$app->request;
            $post = $request->post();
            $username = $request->post('username');
            $role = $request->post('role');
            $page_no = $request->post('page_no',1);
            $page_size = $request->post('page_size');
            $partantuser = $request->post('partantuser');
            $partant = userinfo::getusermsg($partantuser);//获取到上级用户的信息
            $userinfo = [
                'username' => $username,
                'role' => $role,
                'page_no' => $page_no,
                'page_size' => $page_size,
                'partantid' => $partant['id']
            ];
            $getallusermsg = userinfo::getallusermsg($userinfo); //将从前端获取到的数据传递给model
            if ($getallusermsg) {
                echo json_encode($getallusermsg);
            } else {
                echo json_encode(['code' => 201,'data' => '','message' => '获取用户信息失败!']);
            }
        }

model中获取到controller中传递的参数，并从数据库中查询并以分页和模糊查询的方式传递给controller

public static function getallusermsg($userinfo)
    	{
            $query = self::find()->where(['partantid' => $userinfo['partantid']]);
            if ($userinfo['username']) {
                $query->andWhere(['like', 'username', $userinfo['username']]); //link为模糊查询
            }
            if ($userinfo['role']) {
                $query->andWhere(['role' => $userinfo['role']]);
            }
            //进行后端分页
            $startpage = ($userinfo['page_no'] -1) * $userinfo['page_size'];
            $count = $query->offset($startpage)->count();
            $data = $query->limit($userinfo['page_size'])->offset($startpage)->asArray()->all();
            $dataall = [
                'code' => 200,
                'data' => [
                    'count' => (int)$count,
                    'data' => $data,
                    'page_count' =>ceil($count/$userinfo['page_size'])
                ],
                'message' => '获取用户信息成功!'
            ];
            return $dataall;
    	}

哈哈,是不是很简单！