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Contents
class Airport < ActiveRecord::Base
set_primary_key :iata_code
# --------------------------------
# virtual has_many association
# has_many :segments won't work because there's no general way to specify the correct conditions
# even if you get clever with it, like
# has_many :segments,
# :class_name => 'FlightSegment',
# :foreign_key => 'origin_airport_id',
# :conditions => 'flight_segments.destination_airport_id = #{id}'
# you get queries like "`flight_segments`.origin_airport_id = 3654 AND (flight_segments.destination_airport_id = 3654))"
# in which you notice the AND which must be an OR
# and you can't just do finder_sql, because that breaks any other :select
def segments
FlightSegment.scoped :conditions => ['origin_airport_id = ? OR destination_airport_id = ?', id, id]
end
# --------------------------------
belongs_to :country, :foreign_key => 'country_iso_3166_code', :primary_key => 'iso_3166_code'
acts_as_mappable :default_units => :nms,
:lat_column_name => :latitude,
:lng_column_name => :longitude
data_miner do
tap "Brighter Planet's sanitized airports data", Earth.taps_server
process "pull dependencies" do
run_data_miner_on_belongs_to_associations
end
end
def all_flights_from_here_domestic?
!international_origin?
end
def all_flights_to_here_domestic?
!international_destination?
end
def united_states?
country == Country.united_states
end
end
Version data entries
35 entries across 35 versions & 1 rubygems