Projection writes and updates on nested objects

[aejimmi]

I'm curious if you can use Projections for write transactions (in the case of nested objects). This to simplify code for both presentation, view updates, and realm writes in swiftui.

Example: a Person class with an optional Dog object.

Views:
 – parent view with details of person and dog, and computed values.
 – settings view, a sheet loaded from parent view modifying any value from person or nested dog object.
 
 Expected results

• parent view is updated on change
• can write to projected object passed to settings view, or a simple way to extract the person object

My actual views are more complex