一对多:1对多操作需要 select标签限制数据(因为有表中有 外键关系)

前端:

  1 <!DOCTYPE html>
  2 <html lang="en">
  3 <head>
  4     <meta harset="UTF-8">
  5     <title>模态对话框</title>
  6     <script src="/static/zhanggen.js"></script>
  7 </head>
  8 <body>
  9 <style>
 10     td{text-align: center;width:80px;height: 60px}
 11      .shadow{position: fixed;left: 0;right: 0;bottom: 0;top: 0;background-color:silver;z-index: 999;opacity: 0.4 }
 12      .add_modal{position: fixed;width: 250px;height: 225px; margin-top:30px;margin-left:520px;background-color:white;z-index: 1000}
 13      .haid{display: none}
 14      .del_modal{width: 150px;height:150px;z-index:1000;margin-left: 300px;position: fixed;left: 240px;top: 150px;text-align: center }
 15      .edit_modal{width: 300px;height:330px;background-color: silver;position:fixed;left: 240px;top:150px;text-align: center}
 16 
 17 </style>
 18 <table border="1" style="border:none">
 19     <tr>
 20          <td>学号</td>
 21          <td>姓名</td>
 22          <td>班级</td>
 23          <td colspan="3">模态对话框操作</td>
 24     </tr>
 25 
 26      {% for row in list %}
 27        </tr>
 28           <td>{{ row.id }}</td>
 29           <td>{{ row.name }}</td>
 30           <td>{{ row.title }}</td>
 31           <td><a href="#" onclick="show_modal(this)">添加</a></td>
 32           <td id="del_s"><a href="#" onclick="modal_del(this)">删除</a> </td>
 33           <td><a href="#"onclick="modal_edit(this)">编辑</a></td>
 34          </tr>
 35 
 36      {% endfor %}
 37 
 38 {#模态对话框的对遮罩层#}
 39 <div class="shadow haid" id="s"></div>
 40 
 41 {#增加的模特对话框#}
 42 <div class="add_modal haid" id="m">
 43     <p>所属班级:
 44              <select id="66">
 45              </select>
 46     </p>
 47      <p>姓名:<input type="text" id="name7"></p>
 48      <div id="flage" style="color: red"></div>
 49      <p><input id="77" type="button"value="提交"></p>
 50      <p><input id="cancel" type="button"value="取消" onclick="cancel()"></p>
 51 </div>
 52 </table>
 53 
 54 {#删除的模态对话框#}
 55 <div id="del" class="del_modal haid"style="background-color:gray">
 56     <p>真的要删除吗?</p>
 57     <input id="y" style= "float: left; padding-left:10px;padding-right: 10px " type="button" value="确定">
 58     <input id="n" style=" float: right;padding-left: 10px;padding-right: 10px" type="button" value="取消">
 59 </div>
 60 
 61 
 62 {#编辑的模态对话框#}
 63 <div style="border: none" id="edit_mod" class="haid edit_modal">
 64    <p class="haid">ID:<input type="text" id="I"></p>
 65     <p>姓名:<input type="text" id="N"></p>
 66     <p style="margin-left:10px">所属班级
 67              <select name="w" id="1993">
 68              </select>
 69     </p>
 70     <input id="1987" type="button" value="提交">
 71     <input type="button" value="取消" onclick="cancel()">
 72 </div>
 73 
 74 </body>
 75 
 76 
 77 
 78 
 79 <script>
 80 {#    添加操作,触发的模态对话框#}
 81     function show_modal(self) {
 82          document.getElementById("s").classList.remove("haid")
 83          document.getElementById("m").classList.remove("haid")
 84          $.ajax({
 85              url:"/modal_add/",
 86              type:"POST",
 87              data:{"request":"give_class" },
 88              success:function(data){
 89                 $('#66').html(data) }})
 90              ele777=document.getElementById("77")
 91              ele777.onclick=function () {
 92               $.ajax({
 93                   url:'/modal_add/',
 94                   type:"POST",
 95                   data:{"name":$("#name7").val(),"cid": $('#66').val()},
 96                   success:function (data) {
 97                       if(data=="xxoo"){location.href="/modal/"}
 98                       else{($('#flage').text("用户名/密码错误"))}
 99                       }})}}
100 
101 {#    取消按钮触发的事件 #}
102     function cancel() {
103         location.href="/modal/"
104     }
105 
106 {#删除操作 触发 模态对话框的 确认按钮 onclick事件 进而触发 ajanx请求服务端 #}
107     function modal_del(self) {
108         id1=$(self).parent().siblings().eq(0).text();
109         $("#del").removeClass("haid");
110         ele=document.getElementById("y");
111         ele.onclick=function () {
112             $.ajax({
113                  url: '/modal_del/',
114                  type: 'POST',
115                  data:{"id":id1},
116                  success:function (data) {
117                        if (data == "OK"){location.href="/modal/"}
118                                           }})}
119         ele1=document.getElementById("n");
120         ele1.onclick=function () {location.href="/modal/"} }
121 
122 function modal_edit(self) {
123        id=$(self).parent().siblings().eq(0).text();
124        name=$(self).parent().siblings().eq(1).text();
125        cid=$(self).parent().siblings().eq(2).text();
126         $("#edit_mod").removeClass("haid");
127         $('#I').val(id)
128         $('#N').val(name)
129         $.ajax({
130             url:'/modal_edit/',
131             type:"POST",
132             data:{"id":id},
133             success:function(data){ $("#1993").html(data);
134             $('#edit_mod').removeClass("haid")}})
135 {#    给编辑对话栏的提交按钮动态添加事件#}
136           ele=document.getElementById("1987");
137           ele.onclick=function () { console.log("ok")
138           $.ajax({
139              url:'/modal_edit/',
140              type:"GET",
141              data:{"id":($('#I').val()),"name":$('#N').val(),"class_id":$("#1993").val()},
142               success:function(data){
143                 console.log(data)
144                if (data=='ok')
145                         {location.href="/modal/"}}})}
146          }
147 
148 </script>
149 
150 </html>
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