我的项目中有一个奇怪的问题。有人能说出它为什么会发生以及如何解决它。
我有编辑/更新对象 ( function_edit) 的功能。我还使用 AJAX 在成功编辑后更新对象列表（function_list），并且我使用 django-reversion 应用程序来控制每个对象的更改。function_list具有仅对具有特殊角色 ( request_user_is_business_analyst)的用户可见的部分。当我在视图中使用 request_user_is_business_analyst 时，它会引发错误，而当我不使用它时，视图功能可以正常工作。此外，当我没有使用django-reversion request_user_is_business_analyst工作正常。
urs.py：
url(r'^(?P<project_code>[0-9a-f-]+)/(?P<function_code>[0-9a-f-]+)/edit/$',
function_edit,
name='function_edit'),
视图.py：
@reversion.create_revision()
def function_edit(request, project_code, function_code):
data = dict()
project = get_object_or_404(Project, pk=project_code)
request_user_is_business_analyst = project.member_set.filter(user=request.user, role='business_analyst').exists()
function = get_object_or_404(Function, pk=function_code)
if request.method == 'POST':
form = FunctionAddForm(request.POST, instance=function)
if form.is_valid():
form.save()
data['form_is_valid'] = True
functions = Function.objects.filter(project=project_code)
data['html_function'] = render_to_string('project/function_list.html', {'functions': functions, 'request_user_is_business_analyst': request_user_is_business_analyst})
# Store some meta-information for reversion.
reversion.set_user(request.user)
reversion.set_comment('EDIT')
else:
data['form_is_valid'] = False
else:
form = FunctionAddForm(instance=function)
context = {'project': project, 'function': function, 'form': form}
data['html_function_form'] = render_to_string('project/function_edit.html', context, request=request)
return JsonResponse(data)
函数列表.html：
{% for function in functions %}
<tr>
<td class="text-center">{{ function.code }}</td>
<td>{{ function.name }}</td>
{% if request_user_is_business_analyst %}
<td>
<a class="btn btn-warning button-handlers" id="js-edit-function-button" data-url="{% url 'project:function_edit' project_code=project.code function_code=function.code %}"><i class="fa fa-pencil" aria-hidden="true"></i> {% trans 'EDIT' %}</a>
<a class="btn btn-info open-button-handler" href="{{ function.get_absolute_url }}"><i class="fa fa-sign-in" aria-hidden="true"></i> {% trans 'REVERSION' %}</a>
</td>
{% endif %}
</tr>
{% endfor %}
错误：
Traceback (most recent call last):
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\exception.py", line 39, in inner
response = get_response(request)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\base.py", line 187, in _get_response
response = self.process_exception_by_middleware(e, request)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\core\handlers\base.py", line 185, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\reversion\revisions.py", line 296, in do_revision_context
return func(*args, **kwargs)
File "C:\Users\Nurzhan\PycharmProjects\RMS\project\views.py", line 252, in function_edit
data['html_function'] = render_to_string('project/function_list.html', {'functions': functions, 'request_user_is_business_analyst': request_user_is_business_analyst})
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\loader.py", line 68, in render_to_string
return template.render(context, request)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\backends\django.py", line 66, in render
return self.template.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 208, in render
return self._render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 199, in _render
return self.nodelist.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 994, in render
bit = node.render_annotated(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 961, in render_annotated
return self.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\defaulttags.py", line 209, in render
nodelist.append(node.render_annotated(context))
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 961, in render_annotated
return self.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\defaulttags.py", line 315, in render
return nodelist.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 994, in render
bit = node.render_annotated(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\base.py", line 961, in render_annotated
return self.render(context)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\template\defaulttags.py", line 439, in render
url = reverse(view_name, args=args, kwargs=kwargs, current_app=current_app)
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\urls\base.py", line 91, in reverse
return force_text(iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs)))
File "C:\Users\Nurzhan\AppData\Local\Programs\Python\Python35-32\lib\site-packages\django\urls\resolvers.py", line 392, in _reverse_with_prefix
(lookup_view_s, args, kwargs, len(patterns), patterns)
django.urls.exceptions.NoReverseMatch: Reverse for 'function_edit' with arguments '()' and keyword arguments '{'project_code': '', 'function_code': UUID('08abfad3-58a5-4953-8b8f-82bd1f66fecb')}' not found. 1 pattern(s) tried: ['ru/account/dashboard/projects/(?P<project_code>[0-9a-f-]+)/(?P<function_code>[0-9a-f-]+)/edit/$']