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Code Issues 32 Releases Wiki Activity

Fixed #28742 -- Fixed AttributeError crash when assigning None to cached reverse relations.

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This commit is contained in:
Paulo
2017-10-29 12:01:04 +01:00
committed by Tim Graham
parent f8946fbb5d
commit fcfcf8aae4
2 changed files with 13 additions and 7 deletions
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11
django/db/models/fields/related_descriptors.py
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@@ -428,13 +428,10 @@ class ReverseOneToOneDescriptor:
if value is None:
# Update the cached related instance (if any) & clear the cache.
try:
# Following the example above, this would be the cached
# ``restaurant`` instance (if any).
rel_obj = self.related.get_cached_value(instance)
except KeyError:
pass
else:
# Following the example above, this would be the cached
# ``restaurant`` instance (if any).
rel_obj = self.related.get_cached_value(instance, default=None)
if rel_obj is not None:
# Remove the ``restaurant`` instance from the ``place``
# instance cache.
self.related.delete_cached_value(instance)