jquery的Ajax(删除与添加数据)

作者: 赖三石 | 来源:发表于2017-07-08 23:20 被阅读0次

    models.py

    from __future__ import unicode_literals
    from django.db import models
    
    # Create your models here.
    
    class Host(models.Model):
       hostname = models.CharField(max_length=32, unique=True)
       ip = models.GenericIPAddressField(max_length=20, unique=True)
       port = models.IntegerField()
       category = models.ForeignKey('Category')
    
       def __unicode__(self):
           return self.hostname
    
    class Category(models.Model):
       name = models.CharField(max_length=32, unique=True)
    
       def __unicode__(self):
           return self.name
    

    views.py

    # -*- coding: UTF-8 -*-
    from django.shortcuts import render, get_object_or_404, redirect, HttpResponse
    from django.views.decorators.csrf import csrf_exempt
    from .models import *
    import json
    # Create your views here.
    
    
    def index(request):
        hosts = Host.objects.all()
        categorys = Category.objects.all()
        return render(request, 'index.html', {'hosts': hosts, 'categorys': categorys})
    
    
    def delete_host(request, host_id):
        host_one = get_object_or_404(Host, pk=host_id)
        host_one.delete()
        return redirect('/')
    
    
    # @csrf_exempt
    def create_host(request):
        res = {'status': True, 'error': None, 'data': None}
        try:
            hostname = request.POST.get('hostname')
            ip = request.POST.get('ip')
            port = request.POST.get('port')
            category = request.POST.get('category')
            # print('%s,%s,%s,%s' %(hostname, ip, port, category))
            if hostname and len(hostname) > 5:
                Host.objects.create(hostname=hostname, ip=ip, port=port, category_id=category)
            else:
                res['status'] = False
                res['error'] = '太短了'
        except Exception as e:
            res['status'] = False
            res['error'] = '请求错误'
        return HttpResponse(json.dumps(res))
    

    template

    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title></title>
        <link href="/static/css/bootstrap.min.css" rel="stylesheet">
    </head>
    <body>
        <div class="container">
        <div class="row">
        <table class="table table-bordered">
            <thead>
                <tr>
                    <td>name</td>
                    <td>ip</td>
                    <td>port</td>
                    <td>category</td>
                    <td></td>
                    <td></td>
                </tr>
            </thead>
            <tbody>
                {% for host in hosts %}
                <tr>
                    <td>{{ host.hostname }}</td>
                    <td>{{ host.ip }}</td>
                    <td>{{ host.port }}</td>
                    <td>{{ host.category.name }}</td>
                    <td><a href="{% url 'delete_host' host.id %}">删除</a></td>
                    <td><a href="#">编辑</a></td>
                </tr>
                {% endfor %}
            </tbody>
        </table>
        </div>
        </div>
    
    <!-- Button trigger modal -->
      <button type="button" class="btn btn-primary btn-lg" data-toggle="modal" data-target="#myModal">
      创建主机
    </button>
    
    
    <!-- Modal -->
    <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
      <div class="modal-dialog" role="document">
        <div class="modal-content">
          <div class="modal-header">
            <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button>
            <h4 class="modal-title" id="myModalLabel">创建主机</h4>
          </div>
          <div class="modal-body">
            <form id="aform" class="form-group" action="" method="post">
                hostname:<input id="hostname" type="text" class="form-control" name="hostname"><br>
                ipaddress:<input id="ip" type="text" class="form-control" name="ip"><br>
                port:<input id="port" type="text" class="form-control" name="port"><br>
                <select id="category" name="category" class="form-control-static">
                    {% for category in categorys %}
                        <option value="{{ category.id }}">{{ category }}</option>
                    {% endfor %}
                </select>
            <span id="messee"></span>
            </form>
          </div>
          <div class="modal-footer">
            <button type="button" class="btn btn-default" data-dismiss="modal">关闭</button>
            <button id="btn1" type="button" class="btn btn-primary">确定</button>
          </div>
        </div>
      </div>
    </div>
    
    </body>
    <script src="/static/js/jquery.js"></script>
    <script src="/static/js/bootstrap.min.js"></script>
    <script>
    
        $(document).ready(function(){
    
            $('#btn1').click(function(){
    
                $.ajax({
                    url: '/host',
                    type: 'POST',
                    data: {csrfmiddlewaretoken: '{{ csrf_token }}','hostname':$('#hostname').val(),'ip': $('#ip').val(), 'port': $('#port').val(), 'category': $('#category').val()},
    {#                data: $('#aform').serialize(),#}
                    success: function(data){
                        var a = JSON.parse(data)
                        console.log(a)
                        if(a.status){
                            location.reload();
                        }else{
                            $('#messee').text(a.error);
                        }
                    }
                })
            });
        });
    
    </script>
    </html>
    

    注意:

    ajax中POST的csrf的屏蔽和解决:

    注释settings.py 那行
    MIDDLEWARE_CLASSES = [
        'django.middleware.security.SecurityMiddleware',
        'django.contrib.sessions.middleware.SessionMiddleware',
        'django.middleware.common.CommonMiddleware',
       # 'django.middleware.csrf.CsrfViewMiddleware',
        'django.contrib.auth.middleware.AuthenticationMiddleware',
        'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
        'django.contrib.messages.middleware.MessageMiddleware',
        'django.middleware.clickjacking.XFrameOptionsMiddleware',
    ]
    
    用@csrf_exempt装饰器
    from django.views.decorators.csrf import csrf_exempt
    
    在$ajax , data:中加入csrfmiddlewaretoken: '{{ csrf_token }}'
           $.ajax({
                    url: '/host',
                    type: 'POST',
                    data: {csrfmiddlewaretoken: '{{ csrf_token }}','hostname':$('#hostname').val(),'ip': $('#ip').val(), 'port': $('#port').val(), 'category': $('#category').val()},
    {#                data: $('#aform').serialize(),#}
                    success: function(data){
                        var a = JSON.parse(data)
                        console.log(a)
                        if(a.status){
                            location.reload();
                        }else{
                            $('#messee').text(a.error);
                        }
                    }
                })
    

    相关文章

      网友评论

        本文标题:jquery的Ajax(删除与添加数据)

        本文链接:https://www.haomeiwen.com/subject/bknjhxtx.html