class Node < ActiveRecord::Base
	has_many :counters, :dependent => :delete_all
	has_many :counter_types, :through => :counters, :uniq => true
	has_many :arena_modules
	has_many :arena_module_types, :through => :arena_modules, :uniq => true
	has_many :node_types, :through => :arena_module_types
	has_many :triggers
	belongs_to :product
end

class ArenaModule < ActiveRecord::Base

	belongs_to :node
	belongs_to :arena_module_type
end

class ArenaModuleType < ActiveRecord::Base

	has_many :arena_modules, :dependent => :delete_all
	has_many :nodes, :through => :arena_modules, :uniq => true
	has_and_belongs_to_many :node_types
end

class NodeType < ActiveRecord::Base

	has_and_belongs_to_many :arena_module_types
	has_many :nodes, :through => :arena_module_types
end