module MultiCurrency::Converter::GrandTrunk
Public Class Methods
get_rate_and_cache(source_currency, to_currency, date)
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# File lib/converter/grand_trunk.rb, line 5 def self.get_rate_and_cache(source_currency, to_currency, date) if source_currency.downcase == to_currency.downcase rate = 1.0 else exchange_rate = ExchangeRate.find_by_from_code_and_to_code_and_date(source_currency.downcase, to_currency.downcase, date) rate = if exchange_rate.present? exchange_rate.rate else response = Net::HTTP.get_response(URI("http://currencies.apps.grandtrunk.net/getrate/#{(date - 1).strftime("%Y-%m-%d")}/#{source_currency.downcase}/#{to_currency.downcase}")) if response.is_a? Net::HTTPOK ExchangeRate.create!(from_code: source_currency, to_code: to_currency, date: date, rate: response.body.to_f) response.body.to_f else raise "#{response.code}: #{response.body}" end end end rate end