#34443: Filtering reverse relations against invalid lookups crashes.
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Reporter: Mariusz | Owner: Mariusz Felisiak
Felisiak |
Type: Bug | Status: assigned
Component: Database | Version: 4.2
layer (models, ORM) |
Severity: Release | Keywords:
blocker |
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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Filtering reverse relations against invalid lookups crashes.
{{{#!python
from django.db import models
class Author(models.Model):
name = models.CharField(max_length=10)
class Report(models.Model):
name = models.CharField(max_length=10)
creator = models.ForeignKey(Author, models.CASCADE)
>>> Author.objects.filter(report__title="first")
...
File "/django/django/db/models/expressions.py", line 380, in
get_transform
return self.output_field.get_transform(name)
AttributeError: 'ManyToOneRel' object has no attribute 'get_transform'
}}}
In Django 4.1 it raises `django.core.exceptions.FieldError: Related Field
got invalid lookup: title`.
Regression in ce6230aa976e8d963226a3956b45a8919215dbd8.
--
Ticket URL: <https://code.djangoproject.com/ticket/34443>
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