amb_wechatapp/application/admin/controller/user/Comment.php

<?php

namespace app\admin\controller\user;

use app\common\controller\Backend;
use app\common\model\course\Comment as commonComment;
use think\Db;
/**
 * 课程评论
 *
 * @icon fa fa-circle-o
 */
class Comment extends Backend
{

    /**
     * Comment模型对象
     * @var \app\admin\model\user\Comment
     */
    protected $model = null;

    public function _initialize()
    {
        parent::_initialize();
        $this->model = new \app\admin\model\user\Comment;
        $this->commonCommentModel = new commonComment;
        $this->commonCommentLikeModel = new \app\common\model\course\CommentLike;
        $this->view->assign("statusList", $this->model->getStatusList());
    }




    /**
     * 添加评论
     * @return void
     */
    public function reply(){
        $content = $this->request->post('content');
        $replyCommentId = $this->request->post('comment_id');

        if(empty($content)){
            $this->error("请完善评论内容");
        }

        $data = [
            'createtime'=>time(),
            'content'=>$content,
            'user_id'=>0,
            'uniacid'=>UNIACID
        ];
        if($replyCommentId){
            $replyCommentData = $this->commonCommentModel->getComment($replyCommentId);
            $data['course_id'] = $replyCommentData['course_id'];
            if(!$replyCommentData){
                return $this->error("回复的评论不存在");
            }
            $data['reply_comment_id'] = $replyCommentData['id'];
            $data['reply_user_id'] = $replyCommentData['user_id'];
        }
        $this->commonCommentModel->save($data);

        return $this->success("评论成功");
    }

    /**
     * 查看
    */
    public function index()
    {
       //当前是否为关联查询
       $this->relationSearch = true;
       //设置过滤方法
       $this->request->filter(['strip_tags', 'trim']);
       //如果发送的来源是Selectpage，则转发到Selectpage
       if ($this->request->request('keyField')) {
           return $this->selectpage();
       }
       list($where, $sort, $order, $offset, $limit) = $this->buildparams();

        if($sort=='comment.like_count'){
            $sort = "like_count";
        }

        $list = $this->commonCommentModel->with(['user','course'])
            ->alias("comment")
            ->join($this->commonCommentLikeModel->name." like","comment.id=like.comment_id","left")
            ->where($where)
            ->group("comment.id")
            ->field(["count(like.id) as like_count","comment.content","comment.createtime","comment.id","comment.course_id"])
            ->order($sort, $order)
            ->paginate($limit);

       if(!empty($list)){
           $list = $list->toArray();
           foreach ($list['data'] as &$row) {
               if(!empty($row['reply_comment_id'])){
                   $row['reply'] = $this->model->with(['user'])->where([
                       'comment.id'=>$row['reply_comment_id']
                   ])->find();
               }
               if($row['user_id']==0){
                   $row['user'] = [
                       'nickname'=>'管理员',
                       'username'=>'admin',
                       'avatar'=>'/assets/logo.png'
                   ];
               }
               $row['content'] = str_replace("\n","<br>",$row['content']);

//               $row->getRelation('user')->visible(\app\admin\model\User::$listShowField);
           }
       }

       
       $result = array("total" => $list['total'], "rows" => $list['data']);
       
       return $this->success("获取成功",$result);
    }

    /**
     * 删除
     *
     * @param $ids
     * @return void
     * @throws DbException
     * @throws DataNotFoundException
     * @throws ModelNotFoundException
     */
    public function del($ids = null)
    {
        if (false === $this->request->isPost()) {
            $this->error(__("Invalid parameters"));
        }
        $ids = $ids ?: $this->request->post("ids");
        if (empty($ids)) {
            $this->error(__('Parameter %s can not be empty', 'ids'));
        }
        $pk = $this->model->getPk();
        $adminIds = $this->getDataLimitAdminIds();
        if (is_array($adminIds)) {
            $this->model->where($this->dataLimitField, 'in', $adminIds);
        }
        $list = $this->model->where($pk, 'in', $ids)->select();

        $count = 0;
        Db::startTrans();
        try {
            foreach ($list as $item) {
                $count += $this->commonCommentModel->del($item['id']);
            }
            Db::commit();
        } catch (PDOException|Exception $e) {
            Db::rollback();
            $this->error($e->getMessage());
        }
        if ($count) {
            $this->success("操作成功");
        }
        $this->error(__('No rows were deleted'));
    }

    /**
     * 切换可用状态
     * @return void
     */
    public function changeStatus($id){
        $row = $this->model->get($id);
        if (!$row) {
            $this->error(__('No Results were found'));
        }

        $row->allowField(true)->save([
            'status'=>$row['status'] == 1 ? 0 : 1
        ]);

        return $this->success("操作成功");
    }

}