# File lib/model/mongo_mapper.rb, line 24
      def extjs_associations
        @extjs_associations ||= self.associations.inject({}) do |memo, (key, assn)|
          memo[key.to_sym] = {
            :name => key.to_sym,
            :type => assn.type,
            :class => assn.class_name.constantize,
            :foreign_key => assn.foreign_key,
            :is_polymorphic => false
          }
          memo
        end
      end