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-rw-r--r--rest_framework/serializers.py20
1 files changed, 19 insertions, 1 deletions
diff --git a/rest_framework/serializers.py b/rest_framework/serializers.py
index 9f3e53fd..03e20df8 100644
--- a/rest_framework/serializers.py
+++ b/rest_framework/serializers.py
@@ -344,7 +344,25 @@ class ModelSerializer(Serializer):
def create(self, attrs):
ModelClass = self.Meta.model
- return ModelClass.objects.create(**attrs)
+
+ # Remove many-to-many relationships from attrs.
+ # They are not valid arguments to the default `.create()` method,
+ # as they require that the instance has already been saved.
+ info = model_meta.get_field_info(ModelClass)
+ many_to_many = {}
+ for key, relation_info in info.relations.items():
+ if relation_info.to_many and (key in attrs):
+ many_to_many[key] = attrs.pop(key)
+
+ instance = ModelClass.objects.create(**attrs)
+
+ # Save many to many relationships after the instance is created.
+ if many_to_many:
+ for key, value in many_to_many.items():
+ setattr(instance, key, value)
+ instance.save()
+
+ return instance
def update(self, obj, attrs):
for attr, value in attrs.items():