laravel——ajax分页&删除&搜索

一、视图代码

/*搜索*/
<form action="javascript:search_brand()" name="searchForm">
    <input type="hidden" name="_token" value="<?php echo csrf_token(); ?>">
    <input type="text" name="brand_name" size="15" placeholder="请输入品牌名称查找" id="brand_name">
    <input type="button" value=" 搜索 " onclick="page()">
</form>

/*删除*/
<input type="button" onclick="del({{$v->brand_id}})" value="删除">

/*按钮*/
<div id="turn-page">
总计<span id="totalRecords"><?php echo $count?></span>个记录&nbsp;&nbsp;&nbsp;

分为<span id="totalPages"><?php echo $page_num?></span>页&nbsp;&nbsp;&nbsp;
当前第<span id="pageCurrent">1</span>页
  <span id="page-link">
      <a href="javascript:void(0)" onclick="page(1)">首页</a>
      <a href="javascript:void(0)" onclick="page({{$prev}})">上一页</a>
      <a href="javascript:void(0)" onclick="page({{$next}})">下一页</a>
      <a href="javascript:void(0)" onclick="page({{$page_num}})">尾页</a>
  </span>
</div>

<script src="{{URL::asset('js/jquery.js')}}"></script>
<script>
    function page(page) {
        var brand_name = $('#brand_name').val();
        $.ajax({
            type:'get',
            url:'brand_list',
            data:{page:page,brand_name:brand_name},
            headers: {'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')},
            success:function (e) {
                $('body').html(e);
            }
        })
    }

    function del(brand_id) {
        var brand_name = $('#brand_name').val();
        $.ajax({
            type:'get',
            url:'brand_del',
            data:{brand_id:brand_id,brand_name:brand_name},
            headers: {'X-CSRF-TOKEN': $('meta[name="_token"]').attr('content')},
            success:function (msg) {
                $("body").html(msg);
            }
        })
    }
</script>

  二、控制器代码

public function brand_list()
    {
        $where = '1';
        $brand_name = Input::get('brand_name');
        if (!empty($brand_name)){
            $where = "brand_name like '%$brand_name%' ";
        }
        $count = count(DB::table('brand')->get());//总条数
        $limit = 4;//每页显示条数
        $page = Input::get('page');//当前页
        if(empty($page))
        {
            $page = 1;
        }
        $page_num = ceil($count/$limit);//总页数
        $py = ($page-1)*$limit;//偏移量
        $prev = ($page-1)>0?$page-1:1;//上一页
        $next = ($page+1)<$page_num?$page+1:$page_num;//下一页
        $data = DB::select("select * from brand where $where limit $py,$limit");
        return view('Brand/brand_list',['data'=>$data,'count'=>$count,'prev'=>$prev,'next'=>$next,'page_num'=>$page_num]);
    }