Restrict mutation capabilities on specific fields

[jasonbahl]

I would like to restrict what capabilities should be allowed to perform CRUD operations on specific fields within a model.

For example, if I had a list of products (let's say books for a book store), I might want to allow certain users (like an intern) to edit the title, description, etc, but maybe only one specific role/capability (store manager, for example) should be able to change the "price" field.