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fix: use back_populates is backref is not there #740

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fix: use back_populates is backref is not there #740

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2 changes: 1 addition & 1 deletion sqlalchemy_utils/listeners.py
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Original file line number Diff line number Diff line change
Expand Up @@ -241,7 +241,7 @@ class Entry(Base):
parent_class = attr.parent.class_
target_class = attr.property.mapper.class_

backref = attr.property.backref
backref = attr.property.backref or attr.property.back_populates
if not backref:
raise ImproperlyConfigured(
'The relationship argument given for auto_delete_orphans needs to '
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