course/app/common/service/FavoriteService.php

<?php

namespace app\common\service;

use app\common\model\Favorite;
use app\constant\ResponseCode;
use support\Redis;
use think\Exception;

class FavoriteService
{


    /**
     * @desc 收藏
     * @param $request
     * @return array
     */
    public function add($request)
    {
        try {
            $data = $request->post();

            $redis_key = 'favorite_' . $request->user->id . '-' . $data['photographer_id'];

            if (Redis::get($redis_key)) {
                throw new Exception('不能操作太频繁哟~');
            }
            Redis::setEx($redis_key, 5, 1);

            $favorite = Favorite::where(['user_id' => $request->user->id, 'photographer_id' => $data['photographer_id']])->findOrEmpty();
            if (!$favorite->isEmpty()) {
                throw new Exception('您已收藏了该摄影师，不能重复收藏哟~');
            }

            $res = Favorite::create([
                'user_id' => $request->user->id,
                'photographer_id' => $data['photographer_id']
            ]);
            if (!$res) {
                throw new Exception('收藏失败');
            }

            return [
                'code' => ResponseCode::SUCCESS,
                'msg' => '收藏成功'
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }


    /**
     * @desc 取消收藏
     * @param $request
     * @return array
     */
    public function cancel($request)
    {
        try {
            $data = $request->post();

            $redis_key = 'favorite_' . $request->user->id . '-' . $data['photographer_id'];

            if (Redis::get($redis_key)) {
                throw new Exception('不能操作太频繁哟~');
            }
            Redis::setEx($redis_key, 5, 1);

            $favorite = Favorite::where(['user_id' => $request->user->id, 'photographer_id' => $data['photographer_id']])->findOrEmpty();
            if ($favorite->isEmpty()) {
                throw new Exception('您未收藏该摄影师');
            }
            $res = $favorite->delete();
            if (!$res) {
                throw new Exception('取消收藏失败');
            }

            return [
                'code' => ResponseCode::SUCCESS,
                'msg' => '取消成功'
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }


    /**
     * @desc 收藏列表
     * @param $request
     * @return array
     */
    public function getFavoriteList($request)
    {
        try {
            $data = $request->get();
            $favorite = Favorite::order('id desc')->where(['user_id' => $request->user->id]);

            $page = isset($data['page']) ? $data['page'] : 1;
            $limit = isset($data['limit']) ? $data['limit'] : 10;
            $total = $favorite->count();
            $list = $favorite->with(['photographer'])->page($page, $limit)->select();

            return [
                'code' => ResponseCode::SUCCESS,
                'data' => [
                    'list' => $list,
                    'total' => $total,
                    'page' => $page
                ]
            ];
        } catch (Exception $e) {
            return [
                'code' => ResponseCode::FAIL,
                'msg' => $e->getMessage()
            ];
        }
    }

}