Is there a way for us to display columns in the index view of a resource from an associated model, or does it have to be defined as an attribute on the resourced model?

i.e. if I have `user belongs_to :company`  can the resource display `user.company.name` or do I need to define a `def company_name` on the user itself?

you can:
1. do what you suggested and add a getter to that model
2. use a computed field
```ruby
field :company_name, as: :text do
  record.company.name
end
# don't forget to eager load the company
self.includes = [:company]
```

FYI, computed fields only show up on `Index` and `Show` views