associated.rb

module Block
  class Associated < Base

    def self.associate_many(field_name)
      lambda {
        field :"#{field_name}_uids", :type => Array, :default => []
        define_method :"#{field_name}_uids=" do |arr|
          arr.shift if arr.first == '0'
          Rails.logger.warn "************************** TEST"
          super(arr.collect {|uid| uid.kind_of?(BSON::ObjectId) ? uid : BSON::ObjectId(uid)})
        end
        define_method :"#{field_name}=" do |nodes|
          self.attributes["#{field_name}_uids"] = nodes.collect(&:uid)
        end
        define_method :"#{field_name}" do
          uids = send(:"#{field_name}_uids")
          return [] if uids.nil? || uids.empty?
          #uids.collect! {|uid| uid.kind_of?(BSON::ObjectId) ? uid : BSON::ObjectId(uid)}
          docs = self.class.superclass.viewable.any_in(:uid => uids)
          uids.collect do |uid|
            docs.detect {|doc| doc.uid == uid }
          end.compact
        end
      }
    end