#32181: ModelBackend used hardcoded global variable UserModel, it can not be
overrided.
-------------------------------------+-------------------------------------
Reporter: danilovmy | Owner: nobody
Type: | Status: new
Uncategorized |
Component: | Version: 3.1
contrib.auth | Keywords: custombackend,
Severity: Normal | ModelBackend
Triage Stage: | Has patch: 1
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 1
UI/UX: 0 |
-------------------------------------+-------------------------------------
It is not possible override Usermodel for custombackend which depends on
ModelBackend.
if i want to change something un Usermodel class i should override whole
authenticate method. it is not difficult but stupid and brakes SOLID rule
it's easy to change:
1. add **usermodel=UserModel** in ModelBackend class definitions
2. Change global variable UserModel to local **self.usermodel**
{{{
class ModelBackend(BaseBackend):
"""
Authenticates against settings.AUTH_USER_MODEL.
"""
usermodel=UserModel
def authenticate(self, request, username=None, password=None,
**kwargs):
if username is None:
username = kwargs.get(self.usermodel.USERNAME_FIELD)
if username is None or password is None:
return
try:
user =
self.usersermodel._default_manager.get_by_natural_key(username)
except UserModel.DoesNotExist:
# Run the default password hasher once to reduce the timing
# difference between an existing and a nonexistent user
(#20760).
self.usermodel().set_password(password)
else:
if user.check_password(password) and
self.user_can_authenticate(user):
return user
}}}
after that it can be possible to do something like that:
{{{
class LoginBackend(ModelBackend):
"""docstring for LoginBackend."""
def authenticate(self, *args, **kwargs):
self.usermodel = change_something_in(self.usermodel, *args,
**kwargs)
return super().authenticate(self, *args, **kwargs).
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/32181>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/052.f3d163eb6ca05886d036f529b54ca05f%40djangoproject.com.
