Question

我正在开发一个Django项目，其中我有一个模型（订单），其中包含从客户收到的各种订单。我正在尝试使用UpdateView（CancelOrder）通过id更新其中一个Order字段（status）。我已经编写了UpdateView并修改了urls.py，但是当我尝试通过url更新订单的状态时，我收到错误：找不到与查询匹配的订单，尽管存储了多个订单。我的问题是，为什么UpdateView没有看到我的模型数据？我错过了什么吗？

Views.py

from django.shortcuts import render, redirect, HttpResponse
from django.core.exceptions import *
from django.views.generic.edit import UpdateView

from menu.models import Item, Order, Customer
from menu.forms import OrderForm, CustForm, UpdateForm
from .serializers import ItemSerializer
from rest_framework import generics

class CancelOrder(UpdateView):
    model = Order
    field = ('status',)

urls.py

from django.conf.urls import url, patterns, include
from . import views
from rest_framework.urlpatterns import format_suffix_patterns

urlpatterns = patterns('',
    url(r'^$', views.CreateOrder, name='CreateOrder'),
    url(r'^vieworder/', views.ViewOrder, name='ViewOrder'),
    url(r'^confirmation/', views.ConfirmOrder, name='ConfirmOrder'),
    url(r'^api/$', views.ItemList.as_view()),
    url(r'^api/(?P<pk>[0-9]+)/$', views.ItemDetail.as_view()),
    url(r'^cancel/(?P<pk>[0-9]+)/$', views.CancelOrder.as_view(), name='CancelOrder'),
)

urlpatterns = format_suffix_patterns(urlpatterns)

模型

class Order(models.Model):

    order_date = models.DateField(default=timezone.now)
    delivery_date = models.DateField(default=timezone.now)
    status = models.CharField(max_length=10, default='open')
    ordered_by = models.CharField(max_length=50, null=True)

    #user input
    name = models.CharField(max_length=50)
    email = models.EmailField()
    phone = models.CharField(max_length=50)
    shipping_info = models.CharField(max_length=50, null=True)
    billing_info = models.CharField(max_length=50, null=True)
    notes = models.CharField(max_length=150)
    total = models.DecimalField(default=0, max_digits=5, decimal_places=2)
    surcharge = models.DecimalField(default=0, max_digits=5,decimal_places=2)

    def __str__(self):
        return self.name

Answer 1

观察评论并做更多研究，我意识到我并没有完全理解我想要做的事情;最重要的是，我没有模板。我已经解决了以下问题：

views.py

class CancelOrder(UpdateView):
model = Order
fields = ('status',)
template_name = 'menu/order_form.html'

def get_success_url(self):
    return reverse('confirm')

模板。我已经解决了以下问题：

urls.py

urlpatterns = patterns('',
...
url(r'^updateorder/(?P<pk>[0-9]+)/$', views.CancelOrder.as_view(), name='cancel')
)

urlpatterns = format_suffix_patterns(urlpatterns)

模板

{% extends "menu/header.html" %}

{% block content %}

<form method="POST" action="">{% csrf_token %}
<div id='helper'>{% include 'menu/includes/helper.html' %}<div>
<input id="submit" type="submit" value="Cancel Order">
</form>
<p>*Type "cancelled" to cancel your order</p>

{% endblock %}

辅助

{% for field in form %}
<div>
<div><span>{{field.errors}}</div></span>
<label>{{field.label_tag}}</label>
<div>{{field}}</div>
<div>
{% endfor %}

这解决了这个问题，感谢评论中的每个人。

为什么我的Django UpdateView没有看到我的模型数据（特别是id / pk）？

1 个答案: