CODEWITHSUNDEEP
djangodjango-rest-frameworkserialization
foobar
foobar

Reputation: 4019

DRF Serializer handling generated field

I have a Django model that has two required fields - name and a slug. The slug could be passed in during the POST request or otherwise can be generated from name. I then have a model Serializer with both slug and name fields. If the slug is not passed in it throws an error that slug is a required field. However, I want to make it so that if slug is not passed in, I generate it from the name that is always passed in. Is there a way to do this gracefully in Serializer?

Upvotes: 0

Views: 389

Answers (1)

chukkwagon
chukkwagon

Reputation: 634

Try this: add required=False to the slug serializer field and then in your serializer's create method default the slug field to the generated value, like so:

class MyModelSerializer(serializers.Serializer):
    slug = serializers.SlugField(required=False)

    class Meta:
        model = MyModel

    def create(self, data):
        if not data.get('slug'):
            data['slug'] = generate_slug_from_name(data.get('name'))
        return super(MyModelSerializer, self).create(data)

Upvotes: 1

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