Add a method for getting serializer field name (OpenAPI)

[denisorehovsky]

I've camelized my API using djangorestframework-camel-case (https://github.com/vbabiy/djangorestframework-camel-case). However, OpenAPI is still showing me that all of my fields are in snake case.

One way of fixing this is to override map_serializer method and do something similar to what has been described here https://github.com/vbabiy/djangorestframework-camel-case/issues/79#issue-563203091

However, it would be much simpler if we had a separate method for getting serializer field name that I can override:

class CustomAutoSchema(AutoSchema):
    ...

    def get_field_name(self, field):
        return camelize(field.field_name)

This PR adds this method.

[denisorehovsky]

@carltongibson Added docs and test.

[t-ionut]

I'd also love to see this merged :smile: I'm working on an API that'll be used by an Angular app and it can generate services based on OpenAPI & Swagger. I'd like to have both the API and its Swagger documentation show the same fields, in camelCase.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[WhyNotHugo]

.