Question

当我要添加项目或转到project_create URL时，出现错误提示。

Page not found (404)
Request Method: GET
Request URL:    http://localhost:8000/project/add/
Raised by:  projects.views.project_detail_view

URL告诉/project/add/，根据视图它必须打开project_create_view，但是详细视图projects.views.project_detail_view会引发错误。

这是URL：

path('project/<slug:project_slug>/delete/',
     project_delete_view, name='project_delete'),
path('project/<slug:project_slug>/update/',
     project_update_view, name='project_update'),
path('project/<slug:project_slug>/',
     project_detail_view, name='project_detail'),
path('projects/list/', all_projects_view, name='all_projects'),
path('project/add/', project_create_view, name='project_create'),
path('administration/', administration, name='administration'),
path("", home, name='home'),

如果我在path('project/<slug:project_slug>/',project_detail_view, name='project_detail'),这一行中添加注释，那么project_create的网址将转到正确的视图和正确的模板。为什么会这样呢？我使用了不同的name，url和view名称。为什么会这样？

编辑：我添加了两个视图

@login_required
def project_create_view(request):
    if not request.user.is_superuser:
        raise PermissionDenied

    if request.method == 'POST':
        form = ProjectForm(request.POST, request.FILES)
        if form.is_valid():
            title = form.instance.title
            form.save()
            project = get_object_or_404(Project, title=title)
            messages.success(request, 'Project created successfully.')
            return redirect(project.get_absolute_url())

    form = ProjectForm()

    return render(request, 'projects/project_create.html', {'form': form})


def project_detail_view(request, project_slug):
    project = get_object_or_404(Project, slug=project_slug)
    session_key = 'project_views{}'.format(project.slug)
    if not request.session.get(session_key, False):
        Project.objects.filter(id=project.pk).update(
            visit_count=F('visit_count') + 1
        )
        request.session[session_key] = True

    context = {
        'project': project
    }

    return render(request, 'projects/project_detail.html', context)

Answer 1

动态网址必须在列表的底部，

urlpatterns = [
                  # Fixed URLs
                  path("", home, name='home'),
                  path('administration/', administration, name='administration'),
                  path('project/add/', project_create_view, name='project_create'),
                  path('projects/list/', all_projects_view, name='all_projects'),
    
                  # Dynamic URLs
                  path('project/<slug:project_slug>/',
                       project_detail_view, name='project_detail'),
                  path('project/<slug:project_slug>/delete/',
                       project_delete_view, name='project_delete'),
                  path('project/<slug:project_slug>/update/',
                       project_update_view, name='project_update'),

              ]

参考：Django URL routing

Answer 2

您可以按应用或路径进行排序，例如，如果您有多个以project开头的地址，则可以将它们分组在不同的网址格式列表中。

projecturls =[
    # your project path urls
]

urlpatterns =[
    path('project/', include(projecturls)),
    # ...
]

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2 个答案: