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Merge pull request #3593 from tomchristie/primary-key-check-for-to-field 

Proper 'primary key' checking on to_fields.
This commit is contained in:
Tom Christie 2015-11-04 14:49:11 +00:00
parent 95f92e995c 54b79db214
commit 544c24e7cb
1 changed files with 1 additions and 1 deletions
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2
rest_framework/serializers.py
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@ -1131,7 +1131,7 @@ class ModelSerializer(Serializer):
field_kwargs = get_relation_kwargs(field_name, relation_info)
to_field = field_kwargs.pop('to_field', None)
if to_field and to_field != 'id':
if to_field and not relation_info.related_model._meta.get_field(to_field).primary_key:
field_kwargs['slug_field'] = to_field
field_class = self.serializer_related_to_field