George,

> What the best syntax for finding all clients that share Trips with a
> given client?

It's difficult to test this without a stand-alone script, but
something like this should work:

class Client
  has n, :tripClients
  has n, :trips, :through => :tripClients

  def fellowTravellers
    model.all(:trips => trips) - [ self ]
  end
end

This should return all the Client objects with the same trips,
filtering out the current Client from the results.  If you are using
edge dm-core this should produce a single query when run with a DO
adapter.

--

Dan
(dkubb)
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