Update profile on login

[pastrufazio]

Hi all,

I'm trying to update the field "date_activation" the first time a user log in.


This is the error I get when i try to run the code below

TypeError at /admin/login/ int() argument must be a string, a bytes-like object or a number, not 'ModelBase'

Any help would be really appreciated!

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    location = models.CharField(max_length=30, blank=True)
    birth_date = models.DateTimeField(null=True, blank=True)
    date_activation = models.DateTimeField(null=True, blank=True)


@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
    if created:
        Profile.objects.create(user=instance)

@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
    instance.profile.save()

@receiver(user_logged_in, sender=User)
def user_logged_in_callback(sender, user, request, **kwargs):
    Profile.objects.filter(user=User).update(date_activation=datetime.now)

[Michal Petrucha]

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Hash: SHA512

On Thu, Nov 08, 2018 at 09:17:30AM -0800, pastrufazio wrote:
>
> Hi all,
>
> I'm trying to update the field "date_activation" the first time a user log
> in.
>
> This is the error I get when i try to run the code below
>

> *TypeError at /admin/login/ int() argument must be a string, a bytes-like
> object or a number, not 'ModelBase'*

>
> Any help would be really appreciated!

Hi,

Could you please post the full stack trace rather than just the final
error message? That would make it easier to help you.

Cheers,
Michal

> class Profile(models.Model):
> user = models.OneToOneField(User, on_delete=models.CASCADE)
> location = models.CharField(max_length=30, blank=True)
> birth_date = models.DateTimeField(null=True, blank=True)
> date_activation = models.DateTimeField(null=True, blank=True)
>
>
> @receiver(post_save, sender=User)
> def create_user_profile(sender, instance, created, **kwargs):
> if created:
> Profile.objects.create(user=instance)
>
> @receiver(post_save, sender=User)
> def save_user_profile(sender, instance, **kwargs):
> instance.profile.save()
>
> @receiver(user_logged_in, sender=User)
> def user_logged_in_callback(sender, user, request, **kwargs):
> Profile.objects.filter(user=User).update(date_activation=datetime.now)
>
>
>

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[pastrufazio]

Il giorno venerdì 9 novembre 2018 10:29:06 UTC+1, Michal Petrucha ha scritto:

Hi,

Could you please post the full stack trace rather than just the final
error message? That would make it easier to help you.

Cheers,
Michal

Sure, thanks!

Environment:


Request Method: POST
Request URL: http://localhost:4000/admin/login/?next=/admin/

Django Version: 1.11.16
Python Version: 3.6.5
Installed Applications:
['django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'rest_framework',
 'card',
 'corsheaders',
 'allauth.socialaccount',
 'rest_auth',
 'rest_framework.authtoken',
 'django.contrib.sites',
 'allauth',
 'allauth.account',
 'rest_auth.registration']
Installed Middleware:
['corsheaders.middleware.CorsMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.security.SecurityMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware']



Traceback:

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/usr/local/lib/python3.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  57.         response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/contrib/admin/sites.py" in login
  393.         return LoginView.as_view(**defaults)(request)

File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapper
  67.             return bound_func(*args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/views/decorators/debug.py" in sensitive_post_parameters_wrapper
  76.             return view(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in bound_func
  63.                 return func.__get__(self, type(self))(*args2, **kwargs2)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapper
  67.             return bound_func(*args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapped_view
  149.                     response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in bound_func
  63.                 return func.__get__(self, type(self))(*args2, **kwargs2)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapper
  67.             return bound_func(*args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
  57.         response = view_func(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/utils/decorators.py" in bound_func
  63.                 return func.__get__(self, type(self))(*args2, **kwargs2)

File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/views.py" in dispatch
  90.         return super(LoginView, self).dispatch(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py" in dispatch
  88.         return handler(request, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/views/generic/edit.py" in post
  183.             return self.form_valid(form)

File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/views.py" in form_valid
  119.         auth_login(self.request, form.get_user())

File "/usr/local/lib/python3.6/site-packages/django/contrib/auth/__init__.py" in login
  161.     user_logged_in.send(sender=user.__class__, request=request, user=user)

File "/usr/local/lib/python3.6/site-packages/django/dispatch/dispatcher.py" in send
  193.             for receiver in self._live_receivers(sender)

File "/usr/local/lib/python3.6/site-packages/django/dispatch/dispatcher.py" in <listcomp>
  193.             for receiver in self._live_receivers(sender)

File "./card/models.py" in user_logged_in_callback
  75.     Profile.objects.filter(user=User).update(date_activation=datetime.now)

File "/usr/local/lib/python3.6/site-packages/django/db/models/manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py" in filter
  787.         return self._filter_or_exclude(False, *args, **kwargs)

File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py" in _filter_or_exclude
  805.             clone.query.add_q(Q(*args, **kwargs))

File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py" in add_q
  1250.         clause, _ = self._add_q(q_object, self.used_aliases)

File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py" in _add_q
  1276.                     allow_joins=allow_joins, split_subq=split_subq,

File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py" in build_filter
  1206.             condition = lookup_class(lhs, value)

File "/usr/local/lib/python3.6/site-packages/django/db/models/lookups.py" in __init__
  24.         self.rhs = self.get_prep_lookup()

File "/usr/local/lib/python3.6/site-packages/django/db/models/fields/related_lookups.py" in get_prep_lookup
  112.                 self.rhs = target_field.get_prep_value(self.rhs)

File "/usr/local/lib/python3.6/site-packages/django/db/models/fields/__init__.py" in get_prep_value
  966.         return int(value)

Exception Type: TypeError at /admin/login/
Exception Value: int() argument must be a string, a bytes-like object or a number, not 'ModelBase'

[Michal Petrucha]

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Found it. :) The error lies in the filter() call:

> @receiver(user_logged_in, sender=User)
> def user_logged_in_callback(sender, user, request, **kwargs):
> Profile.objects.filter(user=User).update(date_activation=datetime.now)

You're passing in the User class as the argument, rather than the
instance.

By the way, I suggest that you use django.utils.timezone.now() instead
of datetime.now; it's usually a good idea to use timezone-aware
timestamps. And side note, you need to call the function;
QuerySet.update doesn't accept callables.

Cheers,

Michal

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[pastrufazio]

Il giorno venerdì 9 novembre 2018 11:37:23 UTC+1, Michal Petrucha ha scritto:

Found it. :) The error lies in the filter() call:

Thank you very much. I fixed it using 

@receiver(user_logged_in, sender=User)
def user_logged_in_callback(sender, user, request, **kwargs):

    Profile.objects.filter(user=user).exclude(date_activation__isnull=False).update(date_activation=datetime.now())

 

By the way, I suggest that you use django.utils.timezone.now() instead
of datetime.now; it's usually a good idea to use timezone-aware
timestamps. And side note, you need to call the function;

I will try it out, thanks.

QuerySet.update doesn't accept callables.

Sorry, what does it mean? 

[Michal Petrucha]

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Callables in Python are objects that you can call – typically a
function, but it can also be some other object that defines __call__.

Here I was just pointing out that your original code was
“.update(date_activation=datetime.now)”, meaning that you were passing
the function datetime.now to update, rather than the result of calling
it, and that wouldn't work. However, I can see that you fixed that in
your updated code, so nothing to see here. ;)

Michal
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