Opened 6 years ago
Last modified 6 years ago
#29567 closed Bug
It raise FieldError when the F() function uses a forign key field. — at Initial Version
| Reported by: | HongWeipeng | Owned by: | nobody |
|---|---|---|---|
| Component: | Uncategorized | Version: | 2.0 |
| Severity: | Normal | Keywords: | |
| Cc: | Triage Stage: | Unreviewed | |
| Has patch: | no | Needs documentation: | no |
| Needs tests: | no | Patch needs improvement: | no |
| Easy pickings: | no | UI/UX: | no |
Description
`
class B(models.Model):
name = models.CharField(max_length=10)
class A(models.Model):
name = models.CharField(max_length=10)
b = models.ForeignKey('B', on_delete=models.CASCADE)
`
And then:
`
A.objects.all().update(name=F('bname'))
raise FieldError("Joined field references are not permitted in this query")
django.core.exceptions.FieldError: Joined field references are not permitted in this query
`
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