Error transferring new user model

Just create a user model in my models.py to save users in the database. The model is as follows:

 class User(AbstractBaseUser, PermissionsMixin): username = models.CharField(_('username'), max_length=30, unique=True, validators=[ validators.RegexValidator(re.compile('^[\ w.@ +-]+$'), _('Enter a valid username.'), _('invalid')) ]) first_name = models.CharField(_('first name'), max_length=30, blank=True, null=True) last_name = models.CharField(_('last name'), max_length=30, blank=True, null=True) email = models.EmailField(_('email address'), max_length=255) is_staff = models.BooleanField(_('staff status'), default=False,) is_active = models.BooleanField(_('active'), default=False,) date_joined = models.DateTimeField(_('date joined'), default=timezone.now) USERNAME_FIELD = 'username' REQUIRED_FIELDS = ['email',] class Meta: verbose_name = _('user') verbose_name_plural = _('users') def get_full_name(self): full_name = '%s %s' % (self.first_name, self.last_name) return full_name.strip() def get_short_name(self): return self.first_name def email_user(self, subject, message, from_email=None): send_mail(subject, message, from_email, [self.email]) 

I also added this piece of code in settings.py:

 AUTH_USER_MODEL = "myapp.User" 

However, when I try to perform conversions to apply the changes, this error appears:

 Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\core\management\__init__.py", line 353, in execute_from_command_line utility.execute() File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\core\management\__init__.py", line 345, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\core\management\base.py", line 348, in run_from_argv self.execute(*args, **cmd_options) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\core\management\base.py", line 399, in execute output = self.handle(*args, **options) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\core\management\commands\makemigrations.py", line 105, in handle loader.project_state(), File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\loader.py", line 338, in project_state return self.graph.make_state(nodes=nodes, at_end=at_end, real_apps=list(self.unmigrated_apps)) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\graph.py", line 280, in make_state project_state = self.nodes[node].mutate_state(project_state, preserve=False) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\migration.py", line 88, in mutate_state operation.state_forwards(self.app_label, new_state) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\operations\models.py", line 158, in state_forwards apps = state.apps File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\utils\functional.py", line 33, in __get__ res = instance.__dict__[self.name] = self.func(instance) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\state.py", line 162, in apps return StateApps(self.real_apps, self.models) File "C:\Python\lib\site-packages\django-1.9.1-py3.5.egg\django\db\migrations\state.py", line 235, in __init__ raise ValueError(self._pending_models_error(pending_models)) ValueError: Unhandled pending operations for models: myapp.user (referred to by fields: admin.LogEntry.user) 

So, I'm looking for information on possible solutions or the causes of this error, but I can’t understand why this is happening. Maybe this is a problem with the previous migration? (if so, I don’t know what and why). If necessary, I will add additional information, but I would really appreciate the cause of this error.

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1 answer

User-defined user documents specifically warn about switching the user model after you have already created the migration. there is too much dependency to work properly. You may need to remove existing db and migrations and start from scratch.

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Source: https://habr.com/ru/post/1246687/


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