Proposal for Radio Locations / Stations

LocationAssociation.rb

##
# This way a radio location/station can have many cities, countries and continents, e.g.
# for a global online radio channel.
#
# A Radio Location can have just a city or country etc.
#

class RadioStation
  belongs_to :radio_location
end

class RadioLocation
  has_and_belongs_to_many :cities
  has_and_belongs_to_many :states
  has_and_belongs_to_many :countries
  has_and_belongs_to_many :continents

  has_many :radio_stations

  # attributes: street, zipcode, latitude, longitude
end

class City
  belongs_to :state

  has_and_belongs_to_many :radio_locations

  # attributes: name
  # maybe semantic data here
end

class State
  belongs_to :country

  has_many :cities

  has_and_belongs_to_many :radio_locations

  # attributes: name
  # maybe semantic data here
end

class Country
  belongs_to :continent

  has_many :states

  has_and_belongs_to_many :radio_locations

  # attributes: name, code
  # maybe semantic data here
end

class Continent
  has_many :countries

  has_and_belongs_to_many :radio_locations

  # attributes: name
  # maybe semantic data here
end