lib/geokit/geocoders/yandex.rb
module Geokit
module Geocoders
# Yandex geocoder implementation. Expects the Geokit::Geocoders::YANDEX variable to
# contain a Yandex API key (optional). Conforms to the interface set by the Geocoder class.
class YandexGeocoder < Geocoder
config :key
private
# Template method which does the geocode lookup.
def self.do_geocode(address, _=nil)
process :json, submit_url(address)
end
def self.submit_url(address)
address_str = address.is_a?(GeoLoc) ? address.to_geocodeable_s : address
url = "https://geocode-maps.yandex.ru/1.x/?geocode=#{Geokit::Inflector.url_escape(address_str)}&format=json"
url += "&apikey=#{key}" if key
url
end
def self.parse_json(result)
loc = new_loc
coll = result['response']['GeoObjectCollection']
return loc unless coll['metaDataProperty']['GeocoderResponseMetaData']['found'].to_i > 0
l = coll['featureMember'][0]['GeoObject']
loc.success = true
ll = l['Point']['pos'].split(' ')
loc.lng = ll.first
loc.lat = ll.last
country = l['metaDataProperty']['GeocoderMetaData']['AddressDetails']['Country']
locality = country['Locality'] || country['AdministrativeArea']['Locality'] || country['AdministrativeArea']['SubAdministrativeArea']['Locality'] rescue nil
set_address_components(loc, l, country, locality)
set_precision(loc, l, locality)
loc
end
def self.set_address_components(loc, l, country, locality)
loc.country_code = country['CountryNameCode']
loc.full_address = country['AddressLine']
loc.street_address = l['name']
loc.street_number = locality['Thoroughfare']['Premise']['PremiseNumber'] rescue nil
loc.street_name = locality['Thoroughfare']['ThoroughfareName'] rescue nil
loc.city = locality['LocalityName'] rescue nil
loc.state_name = country['AdministrativeArea']['AdministrativeAreaName'] rescue nil
loc.district = country['AdministrativeArea']['SubAdministrativeArea']['SubAdministrativeAreaName'] rescue nil
loc.state ||= country['Locality']['LocalityName'] rescue nil
end
def self.set_precision(loc, l, locality)
loc.precision = l['metaDataProperty']['GeocoderMetaData']['precision'].sub(/exact/, 'building').sub(/number|near/, 'address').sub(/other/, 'city')
loc.precision = 'country' unless locality
end
end
end
end