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fixes #6751

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This commit is contained in:
Krystof Rehacek 2019-06-19 14:37:31 +02:00
parent 72de94a05d
commit 9942453e31
1 changed files with 9 additions and 4 deletions
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13
rest_framework/serializers.py
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@ -973,12 +973,17 @@ class ModelSerializer(Serializer):
# Note that unlike `.create()` we don't need to treat many-to-many
# relationships as being a special case. During updates we already
# have an instance pk for the relationships to be associated with.
m2m_fields = []
for attr, value in validated_data.items():
if attr in info.relations and info.relations[attr].to_many:
field = getattr(instance, attr)
field.set(value)
else:
if attr not in info.relations or not info.relations[attr].to_many:
setattr(instance, attr, value)
else:
m2m_fields.append((attr, value))
for attr, value in m2m_fields:
field = getattr(instance, attr)
field.set(value)
instance.save()
return instance