bsh_sample/app/common/service/PostLikeService.php

<?php

namespace app\common\service;

use app\common\model\MessageNotice;
use app\common\model\Post;
use app\common\model\PostMedia;
use app\common\validate\PostLikeValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\PostLike;
use support\Redis;
use support\Request;

class PostLikeService
{

    use CrudServiceTrait;

    /**
     * 指定当前要操作的模型
     */
    protected string $modelClass = PostLike::class;

    /**
     * 验证器
     */
    protected $validator = PostLikeValidate::class;

    /**
     * 获取验证器
     */
    public function getValidator()
    {
        return  new $this->validator;
    }

    /** 分页列表 */
    public function serviceSelfList(Request $request, string $scene = 'self')
    {
        $result = $this->cqyProcess(ucfirst($scene), $request);
        if ($result === false) {
            $config = $this->buildQueryConfig($request, $scene);
            $limit = (int)$request->get('size', 15);
            $page  = (int)$request->get('current',  1);
            $result = $this->logicList($config, $limit, $page);
        }
        return $this->postProcess(ucfirst($scene), $result);
    }

    /**
     * 构造 CrudUtil 查询配置
     */
    protected function buildQueryConfig(Request $request, string $scene = 'default'): array
    {
        $p = $request->all();

        $config = [];
        $config['model'] = $this->modelClass;
        switch ($scene) {
            case 'default':
                $config['order']['id'] = 'desc';
                break;
            case 'self':
                $config['where']['user_id'] = $request->user->uid;
                $config['order']['id'] = 'desc';
                break;
            case 'index':
                $config['order']['id'] = 'desc';
                break;
            case 'show':
                $config['where']['id'] = $p['id'];
                $config['where']['status'] = 1;
                break;
            case 'store':
                break;
            case 'update':
                $config['where']['id'] = $p['id'];
                break;
            case 'destroy':
                $config['where']['id'] = $p['id'];
                break;
        }

        return $config;
    }


    /**
     * 添加前置处理
     */
    public function beforeServiceStore($data, Request $request)
    {
        $data['user_id'] = $request->user->uid;;
        return $data;
    }

    /**
     * 添加后置处理
     */
    public function afterServiceStore($res)
    {
        $data = [];
        $data['post_id'] = $res['post_id'];
        $data['receiver_user_id'] = Post::where(['id' => $data['post_id']])->value('user_id');
        $data['sender_user_id'] = $res['user_id'];
        $data['type'] = 1;
        MessageNotice::create($data);
        $post = Post::where(['id' => $data['post_id']])->first();
        $post['like'] = $post['like']+1;
        $post->save();
    }

    /**
     * 添加后置处理
     */
    public function serviceDelete(Request $request)
    {
        $param = $request->all();

        if (empty($param['post_id']) && empty($param['user_id'])) {
            throw new \Exception("参数错误");
        }

        $where = [];
        $where['post_id'] = $param['post_id'];
        $where['user_id'] = $request->user->uid;
        $count = PostLike::where($where)->delete();

        if ($count) {
            $post = Post::where(['id' => $param['post_id']])->first();
            $post['like'] = $post['like']-1;
            $post['like'] = $post['like']<0?0:$post['like'];
            $post->save();
        }

        return $count;
    }
}