Question

我正在尝试一件非常简单的事情。我有一个客户数据库。现在我正在建立一个网站，我选择其中一个客户并编辑有关它的信息。完全相同的是在您选择一个“视图”的管理页面中，您可以更改值。

不幸的是我犯了一个错误。

这是我的代码：

urls.py

from django.conf.urls import url
from django.contrib import admin

from Customer import views

urlpatterns = [
    url(r'^$', views.home, name='home'),
    url(r'^customerDetails/(?P<pk>\d+)/$', views.customer_details, name='customer_details'),
    url(r'^customerDetails/(?P<pk>\d+)/edit/$', views.edit_customer, name='edit_customer'),
    url(r'^admin/', admin.site.urls),
]

views.py

def home(request):
   customers = Customer.objects.all()
   return render(request, 'home.html', {'customers': customers})

def customer_details(request, pk):
   customerDetails = get_object_or_404(Customer, pk=pk)
   return render(request, 'customerDetails.html', {'customerDetails':  customerDetails})

def edit_customer(request, pk):
    user = User.objects.first()
    customerDataSet = get_object_or_404(Customer, pk=pk)
    if request.method == 'POST':
        form = EditCustomerForm(request.POST, instance=customerDataSet)
        if form.is_valid():
            form.save()
            return redirect('customer_details', pk=customerDataSet.pk)
    else:
        form = EditCustomerForm(instance=customerDataSet)

    return render(request, 'edit_customer.html', {'customerDataSet': customerDataSet, 'form': form})

modely.py

class Customer(models.Model):
    someId = models.IntegerField()
    customerName = models.CharField(max_length=50)
#with some more fields 
class customerDetails(models.Model):
    customerName = models.CharField(max_length=50)
#with some more fields

formy.py

from django import forms
from .models import Customer

class EditCustomerForm(forms.ModelForm):

    class Meta:
        model = Customer
        fields = ['someId', 'customerName']

edit_customer.html

{% extends 'base.html' %}

{% block title %}Edit a customer{% endblock %}

{% block breadcrumb %}
  <li class="breadcrumb-item"><a href="{% url 'home' %}">Customer</a></li>
  <li class="breadcrumb-item"><a href="{% url 'customer_details' customerDetails.pk %}">{{ customerDetails.customerName }}</a></li>
  <li class="breadcrumb-item active">Edit customer</li>
{% endblock %}

{% block content %}
<form method="post">
    {% csrf_token %}
    {{form.as_p}}
    <button type="submit" class="btn btn-success">Post</button>
  </form>

{% endblock %}

我收到了错误：

Exception Type: NoReverseMatch
Exception Value: Reverse for 'customer_details' with arguments '('',)' not found. 1 pattern(s) tried: ['customerDetails/(?P<pk>\\d+)/$']

你能帮我在我的代码中找到错误。

提前致谢！

Answer 1

我得到了答案。我的 edit_customer.html 错了。

该行：

<li class="breadcrumb-item"><a href="{% url 'customer_details' customerDetails.pk %}">{{ customerDetails.customerName }}</a></li>

应该是：

<li class="breadcrumb-item">{{ customerDataSet.customerName }}</li>

Django：像管理站点一样编辑为数据集;错误

1 个答案: