Migrations for inherited models
|Reported by:||anant90@…||Owned by:|
|Severity:||Normal||Keywords:||migrations inherited model|
|Has patch:||no||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
I have a model BankAccount which inherits from another model PaymentType as shown below:
class PaymentType(BaseModel): user = models.ForeignKey(StupaUser, related_name = "%(app_label)s_%(class)s_related") class BankAccount(PaymentType): account_number = models.CharField(max_length=20) bank_name = models.CharField(max_length=40) nickname = models.CharField(max_length=30) uri = models.CharField(max_length=200, null=True) is_valid = models.BooleanField(default=True)
When I try running python manage.py makemigrations <app_name>, I get "ValueError: No field called user on model BankAccount"
Here's the stack trace:
Traceback (most recent call last): File "manage.py", line 10, in <module> execute_from_command_line(sys.argv) File "/Users/anant/Github/django/django/core/management/__init__.py", line 397, in execute_from_command_line utility.execute() File "/Users/anant/Github/django/django/core/management/__init__.py", line 390, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/anant/Github/django/django/core/management/base.py", line 242, in run_from_argv self.execute(*args, **options.__dict__) File "/Users/anant/Github/django/django/core/management/base.py", line 289, in execute output = self.handle(*args, **options) File "/Users/anant/Github/django/django/core/management/commands/makemigrations.py", line 52, in handle changes = autodetector.changes(graph=loader.graph, trim_to_apps=app_labels or None) File "/Users/anant/Github/django/django/db/migrations/autodetector.py", line 34, in changes changes = self._detect_changes() File "/Users/anant/Github/django/django/db/migrations/autodetector.py", line 140, in _detect_changes field = model_state.get_field_by_name(field_name), File "/Users/anant/Github/django/django/db/migrations/state.py", line 177, in get_field_by_name raise ValueError("No field called %s on model %s" % (name, self.name)) ValueError: No field called user on model BankAccount
Is this expected? Why can't I use migrations for inherited models?
Change History (4)
comment:1 Changed 18 months ago by timo
- Needs documentation unset
- Needs tests unset
- Patch needs improvement unset