python djangjo完整的实现添加的实例

实现:点击添加实现模态对话框，添加数据并显示。

urls.py

from django.conf.urls import url
from django.contrib import admin
from app01 import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^host$', views.host),

models.py

from django.db import models

# Create your models here.
# class Foo(models.Model):
#     name = models.CharField(max_length=1)

class Business(models.Model):
    # id
    caption = models.CharField(max_length=32)
    code = models.CharField(max_length=32,null=True,default="SA")
    # fk = models.ForeignKey('Foo')

class Host(models.Model):
    nid = models.AutoField(primary_key=True)
    hostname = models.CharField(max_length=32,db_index=True)
    ip = models.GenericIPAddressField(protocol="ipv4",db_index=True)
    port = models.IntegerField()
    b = models.ForeignKey(to="Business", to_field='id')

views.py

def host(request):
    if request.method == "GET":
        v1 = models.Host.objects.filter(nid__gt=0)
        v2 = models.Host.objects.filter(nid__gt=0).values('nid','hostname','b_id','b__caption')
        v3 = models.Host.objects.filter(nid__gt=0).values_list('nid','hostname','b_id','b__caption')

        b_list = models.Business.objects.all()

        return render(request, 'host.html', {'v1': v1,'v2': v2,'v3': v3,'b_list':b_list})

    elif request.method == "POST":

        h = request.POST.get('hostname')
        i = request.POST.get('ip')
        p = request.POST.get('port')
        b = request.POST.get('b_id')
        # models.Host.objects.create(hostname=h,
        #                            ip=i,
        #                            port=p,
        #                            b=models.Business.objects.get(id=b)
        #                            )
        models.Host.objects.create(hostname=h,
                                   ip=i,
                                   port=p,
                                   b_id=b
                                   )
        return redirect('/host')

html文件（需要修改，带有其他代码）：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <style>
        .hide{
            display: none;
        }
        .shade{
            position: fixed;
            top: 0;
            right: 0;
            left: 0;
            bottom: 0;
            background: black;
            opacity: 0.6;
            z-index: 100;
        }
        .add-modal,.edit-modal{
            position: fixed;
            height: 300px;
            width: 400px;
            top:100px;
            left: 50%;
            z-index: 101;
            border: 1px solid red;
            background: white;
            margin-left: -200px;
        }
    </style>
</head>
<body>
    <h1>主机列表(对象)</h1>
    <div>
        <input id="add_host" type="button" value="添加" />
    </div>
    <table border="1">
        <thead>
            <tr>
                <th>序号</th>
                <th>主机名</th>
                <th>IP</th>
                <th>端口</th>
                <th>业务线名称</th>
                <th>操作</th>
            </tr>
        </thead>
        <tbody>

                {% for row in v1 %}
                    <tr hid="{{ row.nid }}" bid="{{ row.b_id }}">
                        <td>{{ forloop.counter }}</td>
                        <td>{{ row.hostname }}</td>
                        <td>{{ row.ip }}</td>
                        <td>{{ row.port }}</td>
                        <td>{{ row.b.caption }}</td>
                        <td>
                            <a class="edit">编辑</a>|<a class="delete">删除</a>
                        </td>
                    </tr>
                {% endfor %}

        </tbody>
    </table>

    <h1>主机列表(字典)</h1>
    <table border="1">
        <thead>
            <tr>
                <th>主机名</th>
                <th>业务线名称</th>
            </tr>
        </thead>
        <tbody>
            {% for row in v2 %}
                <tr hid="{{ row.nid }}" bid="{{ row.b_id }}">
                    <td>{{ row.hostname }}</td>
                    <td>{{ row.b__caption }}</td>
                </tr>
            {% endfor %}

        </tbody>
    </table>
    <h1>主机列表(元组)</h1>
    <table border="1">
        <thead>
            <tr>
                <th>主机名</th>
                <th>业务线名称</th>
            </tr>
        </thead>
        <tbody>
            {% for row in v3 %}
                <tr hid="{{ row.0 }}" bid="{{ row.2 }}">
                    <td>{{ row.1 }}</td>
                    <td>{{ row.3 }}</td>
                </tr>
            {% endfor %}

        </tbody>
    </table>

    <div class="shade hide"></div>
    <div class="add-modal hide">
        <form id="add_form" method="POST" action="/host">
            <div class="group">
                <input id="host" type="text" placeholder="主机名" name="hostname" />
            </div>

            <div class="group">
                <input id="ip" type="text" placeholder="IP" name="ip" />
            </div>

            <div class="group">
                <input id="port" type="text" placeholder="端口" name="port" />
            </div>

            <div class="group">
                <select id="sel" name="b_id">
                    {% for op in b_list %}
                    <option value="{{ op.id }}">{{ op.caption }}</option>
                    {% endfor %}
                </select>
            </div>

            <input type="submit" value="提交" />
            <a id="ajax_submit" >悄悄提交</a>
            <input id="cancel" type="button" value="取消" />
            <span id="erro_msg" style="color: red"></span>
        </form>

    </div>

    <div class="edit-modal hide">
        <form id="edit_form" method="POST" action="/host">
                <input type="text" name="nid" style="display:none" />
                <input type="text" placeholder="主机名" name="hostname" />
                <input type="text" placeholder="IP" name="ip" />
                <input  type="text" placeholder="端口" name="port" />
                <select name="b_id">
                    {% for op in b_list %}
                    <option value="{{ op.id }}">{{ op.caption }}</option>
                    {% endfor %}
                </select>
            <a id="ajax_submit_edit" >确认编辑</a>
        </form>

    </div>

    <script src="/static/jquery-1.12.4.js"></script>
    <script>
        $(function(){

            $('#add_host').click(function(){
                $('.shade,.add-modal').removeClass('hide');
            });

            $('#cancel').click(function(){
                $('.shade,.add-modal').addClass('hide');
            });

            $('#ajax_submit').click(function(){
                $.ajax({
                    url: "/test_ajax",
                    type: 'POST',
                    //data: {'hostname': $('#host').val(), 'ip': $('#ip').val(), 'port': $('#port').val(), 'b_id': $('#sel').val()},
                    data: $('#add_form').serialize(),
                    success: function(data){
                        var obj = JSON.parse(data);
                        if(obj.status){
                            location.reload();
                        }else{
                            $('#erro_msg').text(obj.error);
                        }
                    }
                })
            });

            $('.edit').click(function(){
                $('.shade,.edit-modal').removeClass('hide');

                var bid = $(this).parent().parent().attr('bid');
                var nid = $(this).parent().parent().attr('hid');

                $('#edit_form').find('select').val(bid);
                $('#edit_form').find('input[name="nid"]').val(nid);

                // 修改
                /*
                $.ajax({
                    data: $('#edit_form').serialize()
                });
                */
                // models.Host.objects.filter(nid=nid).update()
            })
        })

    </script>
</body>
</html>