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  • laravel框架之增刪改查

     1 <?php
     2 
     3 namespace AppHttpControllersadmin;
     4 
     5 use IlluminateHttpRequest as request;
     6 use AppHttpControllersController;
     7 use IlluminateSupportFacadesDB;
     8 
     9 class UserController extends Controller
    10 {
    11     /**
    12      * @return IlluminateContractsViewFactory|IlluminateViewView|	hink
    esponseView
    13      * 渲染數據展示頁面
    14      */
    15     public function showlist(request $request)
    16     {
    17         //設置頁數,從第一頁開始
    18         $page = $request->post('page') ? $request->post('page') : 1;
    19         //每頁顯示條數
    20         $size = 3;
    21         //查詢數據總條數
    22         $count = count(DB::select("select * from week_type"));
    23         //查詢數據總頁數
    24         $end = ceil($count / $size);
    25         //計算偏移量
    26         $offset = ($page-1)*$size;
    27         //查詢所欲數據
    28         $data = DB::select("select * from week_type limit $offset,$size");
    29         //傳送數據到後台
    30         return view('admin.showlist',['data'=>$data,'end'=>$end,'count'=>$count]);
    31     }
    32 
    33     /**
    34      * @param request $request
    35      * ajax分頁 & 搜索後分頁
    36      */
    37     public function ajaxshowlist(request $request)
    38     {
    39         //根據分類名稱搜索接收值
    40         $search = $request->post('search');
    41         if (empty($search)){
    42             //設置頁數,從第一頁開始
    43             $page = $request->post('page') ? $request->post('page') : 1;
    44             //每頁顯示條數
    45             $size = 3;
    46             //查詢數據總條數
    47             $count = count(DB::select("select * from week_type"));
    48             //查詢數據總頁數
    49             $end = ceil($count / $size);
    50             //計算偏移量
    51             $offset = ($page-1)*$size;
    52             //查詢所欲數據
    53             $data = DB::select("select * from week_type limit $offset,$size");
    54             //傳送數據到前台
    55             return json_encode($data);
    56         }else{
    57             //設置頁數,從第一頁開始
    58             $page = $request->post('page') ? $request->post('page') : 1;
    59             //每頁顯示條數
    60             $size = 3;
    61             //查詢數據總條數
    62             $count = count(DB::select("select * from week_type"));
    63             //查詢數據總頁數
    64             $end = ceil($count / $size);
    65             //計算偏移量
    66             $offset = ($page-1)*$size;
    67             //查詢所欲數據
    68             $data = DB::select("select * from week_type where type_name like '%$search%' limit $offset,$size");
    69             //傳送數據到前台
    70             return json_encode($data);
    71         }
    72     }
    73     /**
    74      * ajax 刪除
    75      */
    76     public function ajax_del(request $request)
    77     {
    78         //接收id
    79         $id = $request->get('id');
    80         //刪除語句
    81         $data = DB::delete("delete from week_type where id='$id'");
    82         //刪除後查詢數據庫
    83         if ($data){
    84             DB::select("select * from week_type");
    85         }
    86         return 1;
    87     }
    88 }
      1 <!doctype html>
      2 <html lang="en">
      3 <head>
      4     <meta charset="UTF-8">
      5     <meta name="viewport"
      6           content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
      7     <meta http-equiv="X-UA-Compatible" content="ie=edge">
      8     <title>展示頁面</title>
      9     <link rel="stylesheet" href="{{asset('css/bootstrap.css')}}">
     10 </head>
     11 <body>
     12 <center><h1>數據展示頁面</h1></center>
     13 <input type="text" name="search" id="search"><input type="button" class="page" value="搜索">
     14 <table class="table table-striped">
     15     <tr>
     16         <td>編號</td>
     17         <td>分類</td>
     18         <td>分類名稱</td>
     19         <td>狀態</td>
     20         <td>操作</td>
     21     </tr>
     22     <tbody id="tb">
     23     @foreach($data as $key=>$val)
     24     <tr>
     25         <td>{{$val->id}}</td>
     26         <td>{{$val->type}}</td>
     27         <td>{{$val->type_name}}</td>
     28         <td>{{$val->state}}</td>
     29         <td><a href="#" id="{{$val->id}}" class="del">刪除</a></td>
     30     </tr>
     31         @endforeach
     32     </tbody>
     33 </table>
     34 <input type="hidden" name="a_page" id="a_page" value="1">
     35 <input type="hidden" name="last_page" id="last_page" value="{{$end}}">
     36 <a href="javascript:void (0)" class="page">首頁</a>
     37 <a href="javascript:void (0)" class="page">上一頁</a>
     38 <a href="javascript:void (0)" class="page">下一頁</a>
     39 <a href="javascript:void (0)" class="page">尾頁</a>
     40 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     41 共{{$end}}頁
     42 &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     43 合計:{{$count}}條
     44 </body>
     45 </html>
     46 <script src="../js/jquery-3.3.1.min.js"></script>
     47 <script>
     48     //ajax刪除
     49     $(document).on("click",".del",function () {
     50        var id = $(this).attr('id');
     51       $.ajax({
     52           url:"ajax_del",
     53           type:"get",
     54           dataType:"json",
     55           data:{
     56               id:id,
     57           },
     58           success:function (data) {
     59               if (data==1){
     60                   alert("刪除成功")
     61                 location.href = "";
     62               } else {
     63                   alert("刪除失敗")
     64               }
     65           }
     66       })
     67     })
     68     //ajax分頁  & 搜索
     69     $(document).on("click",".page",function () {
     70         var search = $("#search").val();
     71         var a_val = $(this).text();
     72         var a_page = $("#a_page").val();
     73         var last_page = $("#last_page").val();
     74         if (a_val=="首頁"){
     75             var page = 1;
     76         } else if (a_val=="上一頁"){
     77             var page = parseInt(a_page)-1 < 1 ? 1 : parseInt(a_page)-1;
     78         } else if (a_val=="下一頁"){
     79             var page = parseInt(a_page)+1 > last_page ? last_page : parseInt(a_page)+1;
     80         } else if (a_val=="尾頁"){
     81             var page = last_page;
     82         }else {
     83             var page = 1;
     84         }
     85         $.ajax({
     86             url:"ajaxshowlist",
     87             type:"post",
     88             dataType:"json",
     89             data:{
     90                 page:page,
     91                 search:search,
     92             },
     93             success:function (data) {
     94                 var str = "";
     95                 $.each(data,function (key,val) {
     96                     str+='<tr>'
     97                     str+='<td>'+val.id+'</td>'
     98                     str+='<td>'+val.type+'</td>'
     99                     str+='<td>'+val.type_name+'</td>'
    100                     str+='<td>'+val.state+'</td>'
    101                     str+='<td><a href="#" id="'+val.id+'" class="del">刪除</a></td>'
    102                     str+='</tr>'
    103                 })
    104                 $("#tb").html(str);
    105                 $("#a_page").val(page);
    106             }
    107         })
    108     })
    109 </script>
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  • 原文地址:https://www.cnblogs.com/songbao/p/11188694.html
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