Rails - Mar 2008 - has_many_polymorphs - specifying the names of the 'children'

I have a class called MusicService which can have various things
''shared'' with it, so i''m setting up a
has_many_polymorphs like this:

has_many_polymorphs :shared_content, :from => [:resources, :lessons,
:courses], :through => :sharings

However, this will generate some associations like this:

@music_service.resources
=> resources shared with that music service.

However, i don''t want that association as it already exists and has a
different meaning (''resources created by that music service'').
So, i
want the polymorphic associations to be called

@music_service.shared_resources
@music_service.shared_lessons
@music_service.shared_courses

Similarly, i want to refer to the music services that have been linked
through sharings as ''allowed_music_services'', so

@resource.allowed_music_services
@course.allowed_music_services
@lesson.allowed_music_services

I''m sure this is simple but i can''t work it out, can anyone
help please?

thanks
max
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