Module: Fafx::ExchangeRate

Defined in:
lib/fafx/exchange_rate.rb

Class Method Summary collapse

Class Method Details

.at(date, base, other) ⇒ Object 



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# File 'lib/fafx/exchange_rate.rb', line 3

def at(date, base, other)
  case date.wday
  when 6 # Saturday
    date -= 1
  when 0 # Sunday
    date -= 2
  end

  ex_rates = Core.new
  base = ex_rates.rates_at(date.to_s, base)
  other = ex_rates.rates_at(date.to_s, other)
  other / base
end

.currencies_available ⇒ Object 



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# File 'lib/fafx/exchange_rate.rb', line 17

def currencies_available
  Core.new.currencies
end

.dates_available ⇒ Object 



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# File 'lib/fafx/exchange_rate.rb', line 21

def dates_available
  Core.new.dates
end

.most_recent ⇒ Object 



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# File 'lib/fafx/exchange_rate.rb', line 25

def most_recent
  ex_rates = Core.new
  first_date = ex_rates.dates.first
  ex_rates.rates[first_date]
end

.update_data ⇒ Object 



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# File 'lib/fafx/exchange_rate.rb', line 31

def update_data
  DataFetcher.save_to_disk
end