Contents

# Copyright: Copyright 2009 Topic Maps Lab, University of Leipzig.
# License:   Apache License, Version 2.0

module RTM::AR
  class Association < Reifiable
    include RTM::Association
    wrapper_cache

    parent :topic_map
    property :type, :aka => [:ty,:t], :rw => true, :type => :Topic, :wrap => true
    
    property_set :scope, :type => :Topic, :wrap => true, :add => :scope, :remove => :scope
    alias :add_theme :add_scope
    alias :remove_theme :remove_scope
    
    property_set :roles, :aka => [:r, :association_roles],  :type => :Role, :wrap => true,
      :create => :role, :create_aka => [:cr, :create_association_role],
      :create_args => [ {:name => :type, :type => :Topic}, {:name => :player, :type => :Topic}]
    
    property_set :players, :aka => [:role_players, :rp, :pl], :type => :Topic, :wrap => true
    property_set :types, :aka => [:role_types, :rt], :type => :Topic, :wrap => true
    
    def id
      __getobj__.id
    end

    equality [:scope, :type, :roles]

    def filter_roles(*args)
      if args.size == 1
        t = topic_map.get(args.first)
        return self.roles.find(:all,:conditions => ["ttype_id = ?", t.id])
      end
      false
    end

  end

  class Role < Reifiable
    include RTM::Role
    wrapper_cache

    parent :association
    property :player, :aka => [:pl,:topic], :rw => true, :type => :Topic, :wrap => true
    property :type, :aka => [:ty,:t], :rw => true, :type => :Topic, :wrap => true
    
    def id
      __getobj__.id
    end
    
    equality [:type, :player, :parent]
  end
  AssociationRole = Role
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
rtm-activerecord-0.2.1	lib/rtm/activerecord/association_and_role.rb
rtm-activerecord-0.2.0	lib/rtm/activerecord/association_and_role.rb