Question

here is screenshot error 我不明白为什么我点击添加照片按钮在详细信息页面后收到错误，但如果我键入网址它工作正常但提交后我想返回详细信息页面，但它给了我这个错误我的views.py

from django.views import generic
from django.views.generic.edit import CreateView, UpdateView, DeleteView 
from django.core.urlresolvers import reverse_lazy
from .models import Category, Photo

class IndexView(generic.ListView):
    template_name='gallery/index.html'
    context_object_name='cat'
    def get_queryset(self):
        return Category.objects.all()



class DetailView(generic.DetailView):
    model=Category
    template_name='gallery/detail.html'
    context_object_name='cater'



class CategoryCreate(CreateView):
    model=Category
    fields=['Category_title','artist','Category_logo']

my urls.py

from django.conf.urls import url
from . import views
app_name='gallery'
urlpatterns=[

   url(r'^$',views.IndexView.as_view(),name='index'),
   url(r'^(?P<pk>[0-9]+)/$',views.DetailView.as_view(),name='detail'),

   #adding photo to category
   url(r'(?P<pk>[0-9]+)/add/$',views.PhotoCreate.as_view(),name='add-      photo'),
  url(r'category/add/$',views.CategoryCreate.as_view(),name='add-category'),

   url(r'category/(?P<pk>[0- 9    ]+)/$',views.CategoryUpdate.as_view(),name='update-category'),

my models.py

from django.db import models
from django.core.urlresolvers import reverse
# Create your models here.
class Category(models.Model):
    Category_title=models.CharField(max_length=200)
    artist=models.CharField(max_length=200)
    Category_logo=models.FileField()
    # returns to details page after submitting category form
    def get_absolute_url(self):
        return reverse('gallery:detail',kwargs={'pk':self.pk})    

   def __str__(self):
        return self.Category_title + '-' +self.artist

class Photo(models.Model):
    cat=models.ForeignKey(Category,on_delete=models.CASCADE)
    file_type=models.FileField()
    photo_title=models.CharField(max_length=100)
    # returns to details page after submitting photo form
    def get_absolute_url(self):
        return reverse('gallery:add-photo',kwargs={'pk':self.pk})    


    def __str__(self):
        return self.photo_title

Answer 1

问题是您没有在模板中传递pk。从屏幕截图中，如果您查看模板中的突出显示行，很明显您的网址缺少所需的关键字参数...

在错误页面的第一行（使用关键字args {}）

中也提到了相同的内容

只需在网址名称后面提及它就可以了

{% url 'gallery:add-photo' photo.pk %}

或者您也可以

{{ photo.get_absolute_url }}

python webframework django noreversematch

1 个答案: