#29466: Textual "to" parameter of ForeignKey fails to resolve if placed in
abstract
model
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Reporter: Vitalik | Owner: nobody
Verhovodov |
Type: Bug | Status: new
Component: Database | Version: 2.0
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 0
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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{{{#!python
import django
from django.conf import settings
settings.configure(DEBUG=True)
django.setup()
from django.db import models
SHOULD_I_FAIL = True # switch this to reproduce the bug
class ReferencedModel(models.Model):
field = models.FloatField()
class Meta:
app_label = 'myapp'
ref = 'ReferencedModel' if SHOULD_I_FAIL else ReferencedModel
class AbstractModel(models.Model):
# NOTE: only abstract models are affected
field = models.ForeignKey(ref, on_delete=models.CASCADE)
class Meta:
abstract = True
app_label = 'myapp'
class RealModel(AbstractModel):
other_field = models.CharField(max_length=100)
class Meta:
app_label = 'myapp'
ffield = AbstractModel._meta.get_field('field')
# ValueError: Related model 'ReferencedModel' cannot be resolved
print(ffield.target_field)
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/29466>
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