gistfile1.txt

require 'geocoder'

class Location
  include Mongoid::Document
  include Geocoder::Model::Mongoid
  
  field :user_defined_location
  field :lat, :type => Float
  field :lon, :type => Float
  field :coordinates, :type => Array
  index :coordinates
  
  field :full_street_address
  field :street_address
  field :street_number
  field :street_name
  field :premise
  field :subpremise
  
  field :political_neighborhood
  # colloquial area throws strange error about string-int conversions
  # field :colloquial_area, type => Integer
  field :locality
  field :sublocality
  field :township
  field :postal_code
  
  field :city
  field :county
  field :state
  field :state_code
  
  field :country_name
  field :country_code
  
  key :full_street_address
  
  belongs_to :neighbor
  attr_accessible :user_defined_location
  
  validate :user_defined_location, :presence => true

  geocoded_by :user_defined_location, :coordinates => :coordinates, :latitude => :lat, :longitude => :lon
  
  reverse_geocoded_by :coordinates do |location, results|
    if geo = results.first
      location.lat                    = geo.latitude
      location.lon                    = geo.longitude
      location.coordinates            = geo.coordinates
      
      location.full_street_address    = geo.address
      location.street_address         = geo.street_address
      location.street_number          = geo.street_number
      location.street_name            = geo.street_name
      location.premise                = geo.premise
      location.subpremise             = geo.subpremise
      
      location.political_neighborhood = geo.political_neighborhood
      # location.colloquial_area        = geo.colloquial_area
      location.locality               = geo.locality
      location.sublocality            = geo.sublocality
      location.township               = geo.township
      location.postal_code            = geo.postal_code
      
      location.city                   = geo.city
      location.county                 = geo.county
      location.state                  = geo.state
      location.state_code             = geo.state_code
      
      location.country_name           = geo.country
      location.country_code           = geo.country_code
    end
  end
  
  after_validation :geocode, :reverse_geocode,
    :if => lambda{ |obj| obj.user_defined_location_changed? }
end