layui分页

    public $page = "";
    public $size = "";   
public  function getPageAndSize($data){
        $this->page = empty($data['page'])?"1":$data['page'];
        $this->size = empty($data['limit']) ?"2":$data['limit'];
        
    }

　　

 public  function index(){
        $newsModel = new NewsModel();
       //模式一
       // $lists = $newsModel->getNews();
        $data  = $this->request->param();
        $whereData = [];
        $this->getPageAndSize($data);
        $whereData['page'] = $this->page;
        $whereData['size'] = $this->size;
        $lists =  $newsModel->getNewsByCondition($whereData);
        $total = $newsModel->getTotalNews($whereData);//总条数
        $total_page = ceil($total/$whereData['size']);//总页数
　　　　 $catModel = new Cat();
        $cat = $catModel->getNormalCatLists(['status' => 1]);

        $cat = array_column($cat,'cat_name','id');
         foreach ($lists as $key=>$value){
             $lists[$key]['cat_name'] = $cat[$value['catid']];
         }
        $this->assign('size',$whereData['size']);
        $this->assign('page',$whereData['page']);
         $this->assign('total_page',$total_page);
         $this->assign('total',$total);
        $this->assign('lists',$lists);
        return $this->fetch();
    }

　　

    public  function getNewsByCondition($param){
        $condition['status'] =['neq','-1'];
        $order = ['id'=>'desc'];
        $from = ($param['page'] - 1)*$param['size'];//开始页
       $result =  $this->where($condition)
           ->limit($from,$param['size'])
           ->order($order)
           ->select();
       // echo $this->getLastSql();
        return $result;
    }
    public function getTotalNews(){
        $condition['status'] =['neq','-1'];
        return $this->where($condition)->count();
    }

　　

 <div id="test1"></div>
<script type="text/javascript" src="__STATIC__/js/layui/dist/layui.js"></script>
<script>

    layui.use(['laypage', 'layer'], function(){
        var laypage = layui.laypage
            ,layer = layui.layer;
        var limits = [1,2,3];
　　　　 var url ='{:url("news/index")}'；
        laypage.render({
            elem: 'test1',
            count: "{$total}",
            limit:"{$size}",
            limits:limits,
            curr: '{$page}'|| 1, //当前页
            layout: ['count', 'prev', 'page', 'next', 'limit', 'refresh', 'skip']
            ,jump: function(obj,first){
                if(!first){ //一定要加此判断，否则初始时会无限刷新
                    //alert(url+'?page='+e.curr);
                    location.href = url+'&page='+obj.curr+'&limit='+obj.limit;
                }
            }
        });
    })
</script>