mingde-bd/application/h5/controller/News.php

<?php
namespace app\h5\controller;

use app\hander\HelpHander;
use think\Controller;
use think\Db;
use think\Exception;

class News extends Controller
{

    private $userid;
    private $token;
    public function __construct()
    {
        parent::__construct();
        $this->token = input('token');
        if(empty($this->token)){
            $this->lo(url('/h5/index/errorPage'));
        }
        $this->userid = $this->checktoken();
    }

    public function newDetails(){
        $newsid = input('newsid');
        $page = input('page/d',1);
        $size = input('size/d',10);

        $offset = ($page-1)*$size;
        $ret=Db::name('news')
            ->where([
                'enable'=>1,
                'del'=>0,
                'id'=>$newsid
            ])->find();
        //评论数
        $comment_num=Db::name('news_reply')
            ->field('id,news_id,content,user_id,create_time,news_reply_id')
            ->where([
                'news_id'=>$newsid,
                'news_reply_id'=>0,
                'del'=>0,
                'enable'=>1,
            ])->count();
        $ret['comment_num']=$comment_num?$comment_num:0;
        $ret['imgs'] = empty($ret['imgs'])?'':explode(',',$ret['imgs']);

        $ret['like']=0;
        if($this->userid){
            //点赞
            $like=Db::name('news_like')
                ->where([
                    'news_id'=>$newsid,
                    'user_id'=>$this->userid,
                ])->find();
            $ret['like']=$like?1:0; //1点赞0未点赞
        }
        if($page==1){
            //评论-回复
            $comment=Db::name('news_reply')
                ->where([
                    'news_id'=>$ret['id'],
                    'enable'=>1,
                    'del'=>0,
                    'news_reply_id'=>0
                ])
                ->order('id','asc')
                ->limit($offset,$size)
                ->select();
            foreach ($comment as $k=>$v){
                $user=Db::name('user')->
                    field('real_name,head_image')
                    ->where('id',$v['user_id'])
                    ->find();
                $comment[$k]['user_name']=$user?$user['real_name']:'';
                $comment[$k]['head_image']=$user?$user['head_image']:'';
                $comment[$k]['reply_name']='';
                $subcomment = Db::name('news_reply')
                    ->where([
                        'news_id'=>$ret['id'],
                        'enable'=>1,
                        'del'=>0,
                        'news_reply_id'=>$v['id']
                    ])
                    ->order('id','asc')
                    ->select();
                $subcomment = $subcomment?$subcomment:[];
                foreach ($subcomment as $key=>$value){
                    $user=Db::name('user')->
                    field('real_name,head_image')
                        ->where('id',$value['user_id'])
                        ->find();

                    $reply = Db::name('user')
                        ->field('real_name,head_image')
                        ->where('id',$value['reply_user_id'])
                        ->find();
                    $subcomment[$key]['user_name']=$user?$user['real_name']:'';
                    $subcomment[$key]['reply_name']=$reply?$reply['real_name']:'';
                }
                $comment[$k]['sub'] = $subcomment;
            }
        }
        //上拉加载更多。。。
        if($page>1){
            $offset = ($page-1)*$size;
            //评论-回复
            $comment=Db::name('news_reply')
                ->where([
                    'news_id'=>$ret['id'],
                    'enable'=>1,
                    'del'=>0,
                    'news_reply_id'=>0
                ])
                ->order('id','desc')
                ->limit($offset,$size)
                ->select();

            foreach ($comment as $k=>$v){
                $user=Db::name('user')
                    ->field('real_name,head_image')
                    ->where('id',$v['user_id'])
                    ->find();
                $comment[$k]['user_name']=$user?$user['real_name']:'';
                $comment[$k]['head_image']=$user?$user['real_name']:'';
                $comment[$k]['reply_name']='';
                $subcomment = Db::name('news_reply')
                    ->where([
                        'news_id'=>$ret['id'],
                        'enable'=>1,
                        'del'=>0,
                        'news_reply_id'=>$v['id']
                    ])
                    ->order('id','asc')
                    ->select();

                $subcomment = $subcomment?$subcomment:[];
                foreach ($subcomment as $key=>$value){

                    $user=Db::name('user')->
                    field('real_name,head_image')
                        ->where('id',$value['user_id'])
                        ->find();

                    $reply = Db::name('user')
                        ->field('real_name,head_image')
                        ->where('id',$value['reply_user_id'])
                        ->find();
                    $subcomment[$key]['user_name']=$user?$user['real_name']:'';
                    $subcomment[$key]['reply_name']=$reply?$reply['real_name']:'';
                }
                $comment[$k]['sub'] = $subcomment;
            }
            HelpHander::success($comment);
        }
        $data=[
            'views'=>$ret['views']+1,
        ];
        Db::name('news')
            ->where('id',$newsid)->update($data);

        $this->assign('data',$ret);
        $this->assign('comment',$comment);
        $this->assign('userid',$this->userid);
        $this->assign('token',$this->token);
        return $this->fetch('news/details');
    }
    //回复文章
    public function replytc(){
        $this->userid = $this->checktoken();
        $newsid=input('newsid',0);
        $replyId=input('replyId',0);
        $replyUserId=input('replyUserId',0);
        $data=[
            'news_id'=>$newsid,
            'content'=>trim(input('content')),
            'user_id'=>$this->userid,
            'enable'=>1,
            'create_time'=>getTime(),
            'news_reply_id'=>$replyId,
            'reply_user_id' => $replyUserId
        ];
        if(!$data['content']){
            HelpHander::error('回复消息不能为空');
        }
        $ret= Db::name('news_reply')
            ->insert($data);
        $ret? HelpHander::success([],'回复成功'): HelpHander::error('回复失败');
    }
    //删除评论
    public function delReplay(){
        $id=input('id');
        $data=['del'=>1];
        $ret=Db::name('news_reply')
            ->where('id',$id)
            ->where('user_id',$this->userid)->update($data);
        if($ret){
            HelpHander::success([],'删除成功');
        }else{
            HelpHander::error('删除失败');
        }
    }
    public function like(){
        $newsId=input('newsid');
        $type=input('type');//1已点赞0取消点赞
        if($type==0){
            $data=[
                'news_id'=>$newsId,
                'user_id'=>$this->userid
            ];
            $ret=Db::name('news_like')
                ->insert($data);
            if($ret){
                HelpHander::success([],'点赞成功');
            }else{
                HelpHander::error('点赞失败');
            }
        }
        if($type==1){
            $ret=Db::name('news_like')
                ->where([
                    'news_id'=>$newsId,
                    'user_id'=>$this->userid
                ])->delete();
            if($ret){
                HelpHander::success([],'取消点赞成功');
            }else{
                HelpHander::error('取消点赞失败');
            }
        }

    }



    public function checkToken(){
        $token = input('token');
        if(!$token){
            $this->lo(url('/h5/index/errorPage'));
        }
        $tokenInfo = Db::name('token')
            ->where('token',$token)
            ->find();
        if(empty($tokenInfo)){
            $this->lo(url('/h5/index/errorPage'));

        }
        return $tokenInfo['user_id'];
    }


    public function lo($url){
        header("Location: $url");
        exit();
    }
}