gistfile1.txt

  def self.retrieve_rate_from_redis(location_code, ratecode, cartype, pickup_date, pickup_time)
    base_key = "rate:#{location_code}:#{ratecode}:#{cartype}"
    default_rate_key = base_key + ":default"
    rate_key = base_key + ":" + pickup_date.to_s
    value = $redis.hgetall (rate_key + ":#{pickup_time[0,2]}") #use TOD rate if tod rate exists
    value = $redis.hgetall rate_key if value.blank? #use regular rate if TOD rate not found
    value = $redis.hgetall default_rate_key if value.blank? #use default rate if regular rate not found
    value
  end