68 lines
2.1 KiB
Python
68 lines
2.1 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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from django.apps import apps
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from django.conf import settings
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from django.core import checks
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def check_user_model(**kwargs):
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errors = []
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cls = apps.get_model(settings.AUTH_USER_MODEL)
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# Check that REQUIRED_FIELDS is a list
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if not isinstance(cls.REQUIRED_FIELDS, (list, tuple)):
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errors.append(
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checks.Error(
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'The REQUIRED_FIELDS must be a list or tuple.',
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hint=None,
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obj=cls,
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id='auth.E001',
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)
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)
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# Check that the USERNAME FIELD isn't included in REQUIRED_FIELDS.
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if cls.USERNAME_FIELD in cls.REQUIRED_FIELDS:
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errors.append(
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checks.Error(
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('The field named as the USERNAME_FIELD '
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'must not be included in REQUIRED_FIELDS '
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'on a custom user model.'),
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hint=None,
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obj=cls,
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id='auth.E002',
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)
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)
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# Check that the username field is unique
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if not cls._meta.get_field(cls.USERNAME_FIELD).unique:
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if (settings.AUTHENTICATION_BACKENDS ==
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('django.contrib.auth.backends.ModelBackend',)):
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errors.append(
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checks.Error(
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('The %s.%s field must be unique because it is '
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'pointed to by USERNAME_FIELD.') % (
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cls._meta.object_name, cls.USERNAME_FIELD
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),
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hint=None,
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obj=cls,
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id='auth.E003',
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)
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)
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else:
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errors.append(
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checks.Warning(
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('The %s.%s field is pointed to by USERNAME_FIELD, '
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'but it is not unique.') % (
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cls._meta.object_name, cls.USERNAME_FIELD
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),
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hint=('Ensure that your authentication backend can handle '
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'non-unique usernames.'),
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obj=cls,
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id='auth.W004',
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)
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)
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return errors
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