Is there a way to get a constant/static value for a field?

[beaugunderson]

Here's my use case:

I'd like to define a field on a Django model like result_type = 'staff', expose it in a DRF serializer by including it in fields = (..., 'result_type'), and have the static value 'staff' exposed in the schema.

I want this because we use the schema to generate flowtypes for our project, and we sometimes need to do type refinements between models, and a static value would help tremendously here.

[axnsan12]

Seems to be an open issue: OAI/OpenAPI-Specification#1313. So not currently possible, and most likely never will be possible in OpenAPI 2.

Best you could do would probably be adding a default to your serializer field:

result_type = serializers.ModelField(model_field='result_type', default=ModelClass.result_type, help_text='Always "' + ModelClass.result_type + '"')