Biegral Blog

<script type="text/javascript">
    $(function hook() {
        $(window).scrollTop(1);
        var self = $("#hook");
        $(window).scroll(function() {
            var st = $(window).scrollTop();
            if (st <= 0) {
                self.addClass('show').removeClass('hide');
                setTimeout(function tt() {
                    self.stop();
                    self.addClass('hide').removeClass('show');
                    last_id = $("#lp_content").find('.live-cont-lst-main').eq(0).find('.btn-live-lst-box').eq(0).attr('id');
                    if(last_id==undefined||last_id==''||last_id==null){
                        last_id=1;
                    }
                    $.get("{:U('Live/index',array('lid'=>$live['vid'],'order'=>$order))}", {'type': 'refresh'}, function(json) {
                        if(json.html!==''){
                            $('.top-live-lst-box').remove();
                            $('.live-cont-lst-main').remove();
                            $('#hook').after(json.html);
                            //初始化load
                            window.finished = true;
                            window.page=1;
                        }
                        $(window).scrollTop(1);
                    }, 'json');
                }, 500)
            }
        })
    })

    var live_ajax = {
        //滚动加载
        ajaxload: function(){
            var all_page = {$all_page};
            window.page = {$page};
            window.finished = true;
            $(window).scroll(function(){
                var scrollTop = $(this).scrollTop();
                var scrollHeight = $(document).height();
                var windowHeight = $(this).height();
                if(scrollTop + windowHeight + 100 >= scrollHeight && window.finished){
                    window.finished = false;
                    if(window.page+1 > all_page){
                        window.finished = false;
                    }else{
                        $.get("{:U('Live/index',array('lid'=>$live['vid'],'order'=>$order))}", {page:window.page+1}, function(json) {
                            window.finished = true;
                            window.page = json.page;
                            $('#lp_content').append(json.html);
                        },'json');

                    }
                }
            });
        }
    }
    live_ajax.ajaxload();
</script>

controller:

//分页参数
	    $page = (int) I('get.page', 1);
	    $pageSize = 10;
	    $count = $this->LiveProgressModel->getCount($live['id']);
	    $all_page = ceil($count / $pageSize);
	    $order ='desc';

//分页[S]
            $this->assign('page', $page);
            $this->assign('all_page', $all_page);
            $this->assign('live',$live);
            $this->assign('dayArray',$dayArray);
            $this->assign('liveProgress',$liveProgressArrayForDay);
            $this->assign('liveTopProgress',$liveProgressTopArrayForDay);
            if ($page > 1) {
                $last_page=$page-1;
                $liveProgress_compare_temp=$this->LiveProgressModel->getList($id,$pageSize * ($last_page - 1),$pageSize * $last_page - 1,$order);
                $last_time=$this->_progress_compare_oneDay($liveProgress_compare_temp,$order);
                $this->assign('last_time',$last_time);
                unset($timeline["$last_time"]);
                C('LAYOUT_ON', FALSE);
                $html = $this->fetch("ajaxload");
                $this->ajaxReturn(array("page"=>$page, "html"=>$html));    exit;
            }else{
                C('LAYOUT_ON', FALSE);
                $html = $this->fetch("ajaxload");
                if(I('type')=='refresh'){$this->ajaxReturn(array("page"=>$page, "html"=>$html));exit;}
                else{$this->assign('html', $html);}
            }
            C('LAYOUT_ON', true);
</span>

model:

      private $cacheKey = array('jiemian:hash:live_progress_data:', 0);
      private $cacheProgress = ['jiemian:zset:live_progress_list:', 0];//直播进度id

         /**
	 * 得到个数
	 * @param $lid
	 * @return mixed
	 */
	public function getCount($lid){
		$key = $this->cacheProgress[0].$lid;
		if( $this->redis && ($this->redis->exists($key)) ){
			$count = $this->redis->zCount($key,"-inf","+inf");
		}else{
			$SqlWhere ="lid=$lid and  status=1 ";
			$count =   $this->where($SqlWhere)->count();
		}
		return $count;
	}


     /**
     * 进展的id列表
     * @param $lid
     * @param int $start
     * @param $end
     * @return array|bool
     */
    public function getList($lid,$start=0,$end=-1,$order='desc'){
        if(empty($lid)) return false;
        $key = $this->cacheProgress[0].$lid;
        if($this->redis && $this->redis->exists($key) ){
            if($order=='desc'){$return = $this->redis->zRevRange($key,$start,$end);}
            else{$return = $this->redis->zRange($key,$start,$end);}
        }else{
            $order=$order=='desc'?'desc':'asc';
            $result = $this->where(['status'=>1,'lid'=>$lid])->field('id')->order("id $order")->select();
            foreach($result as $k=>$v){$this->redis->zAdd($key,$v['id'],$v['id']);}
            if($end == -1) $end=count($result);
            $returnArray = array_slice($result,$start,$end-$start+1);
            foreach($returnArray as $k=>$v){$return[$k]=$v['id'];}
        }
        return $return;
    }</span>