Location.rb

class Location < ActiveRecord::Base
  attr_accessible :street_address, :city, :state, :zipcode, :price, :lat, :lng, :full_address
  before_validation_on_create :geoleo

  def geoleo
    geo = Geokit::Geocoders::GoogleGeocoder.geocode(full_address)
    errors.add(:full_address, "Could not Geocode address") if !geo.success

    if geo.province == "Bexar"
      self.street_address,self.city,self.state,self.county,self.lat, self.lng = geo.street_address,geo.city,geo.state,geo.province,geo.lat$
    else
      errors.add(full_address, "Address must be in Bexar County")
    end
  end
end