Wrap_parameters and Single Table Inheritance

I’m using wrap_parameters and ActiveRecord’s single table inheritance
pattern.

I have a base class “Entity”, and two types derived from it: “Person”
and
“Group”.

What I’d like to do is PUT a Person or Group object to
EntityController#update.

Unfortunately, this causes wrap_parameters to wrap for type “Entity”
instead of Person or Group.

Is there a way to programmatically change wrap_parameter, e.g. so I can
establish a before_filter that sets the proper child class name based on
params[:type]?

Hi Christopher,

You can try this for example

wrap_parameters Entity, :include =>(Person.attribute_names + Group.
attribute_names), :format => :json