Django - ошибка при получении "слишком много значений для распаковки (ожидается 2)" - PullRequest
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Django - ошибка при получении "слишком много значений для распаковки (ожидается 2)"

0 голосов
/ 29 октября 2019

На своем веб-сайте я создал пользовательского класса AbstractUser . Когда я проверяю, существует ли пользователь с таким же именем или адресом электронной почты, мне возвращается ошибка значения.

Вот мой код: models.py : 

class Account(AbstractUser):
    pass

    def __str__(self):
        return self.username

    def __unicode__(self):
        return self.username

views.py : 

try:
   user = Account.objects.get(username=request.POST['username'])
   return render(request, 'users/signup.html', {'error': 'Username has already been taken'})
except Account.DoesNotExist:
           try:
               user = Account.objects.get(request.POST['email'])
               return render(request, 'users/signup.html', {'error': 'Email is not available'})
           except Account.DoesNotExist:
                        user = Account.objects.create_user(username=request.POST['username'], email=request.POST['email'], password=request.POST['password']) 
                        auth.login(request, user)
                        return redirect('home')

Ошибка возвращается : 

ValueError at /accounts/signup/
too many values to unpack (expected 2)

Traceback : user = Account.objects.get(username=request.POST['username'])

Ful traceback : 

File "/Users/eesamunir/Documents/Projects/youtube-project/accounts/views.py" in signup
  28.                     user = Account.objects.get(username=request.POST['username'])

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/manager.py" in manager_method
  82.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/query.py" in get
  406.             raise self.model.DoesNotExist(

During handling of the above exception (Account matching query does not exist.), another exception occurred:

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/core/handlers/exception.py" in inner
  34.             response = get_response(request)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  115.                 response = self.process_exception_by_middleware(e, request)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/core/handlers/base.py" in _get_response
  113.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Users/eesamunir/Documents/Projects/youtube-project/accounts/views.py" in signup
  32.                         user = Account.objects.get(request.POST['email'])

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/manager.py" in manager_method
  82.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/query.py" in get
  399.         clone = self.filter(*args, **kwargs)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/query.py" in filter
  892.         return self._filter_or_exclude(False, *args, **kwargs)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/query.py" in _filter_or_exclude
  910.             clone.query.add_q(Q(*args, **kwargs))

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/sql/query.py" in add_q
  1290.         clause, _ = self._add_q(q_object, self.used_aliases)

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/sql/query.py" in _add_q
  1315.                 child_clause, needed_inner = self.build_filter(

File "/Users/eesamunir/.local/share/virtualenvs/youtube-project-snNRTgQy/lib/python3.8/site-packages/django/db/models/sql/query.py" in build_filter
  1187.         arg, value = filter_expr

Exception Type: ValueError at /accounts/signup/
Exception Value: too many values to unpack (expected 2)

У кого-нибудь есть решение? Спасибо.

1 Ответ

3 голосов
/ 29 октября 2019

Внимательно прочитайте эту строку 

File "/Users/eesamunir/Documents/Projects/youtube-project/accounts/views.py" in signup
32.user = Account.objects.get(request.POST['email'])

Из-за этого возникает ошибка, это должен быть ключ, пара значений, Account.objects.get(email=request.POST['email'])

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