Support StringRelatedField()

[Jer-Pha]

Description of feature request

StringRelatedField is not currently supported by DJA. The current workaround is overwriting get_resource_id in a custom ResourceRelatedField.

Checklist

• Raised initially as discussion StringRelatedField() not working #1234
• This cannot be dealt with as a third party library. (We prefer new functionality to be in the form of third party libraries where feasible.)
• I have reduced the issue to the simplest possible case.

[bashlyss]

I noticed SlugRelatedField is also unsupported with (I assume) the same/an analogous workaround