readonly_fields not supported in custom MongoAdmin

[jm018666]

I've created a custom MongoAdmin, and I need some of the fields to be pre-populated with values and read-only; however, setting this up in my custom MongoAdmin class does nothing. To be honest, either proper documentation or a code change to get this working would be excellent.

[pydanny]

@jm018666 Easy enough to do, the problem is time and lack of paying clients. Fortunately, you can help. This project does accept pull requests. 😄