def foo
      db = Db.new @params[:db]
      db.client = session[:client]
      db.name = db.client.username + '_' + db.name
      db.dbusers.create @params[:dbuser]
      db.save!
end

# If not everything is filled in correct for dbusers, I get an ActiveRecord::Error stating "Dbusers is invalid". When I, however, inspect the ActiveRecord::Error a bit 
# further, I see it contains my nicely formed validation messages from Dbusers, any way I can extract those?