Class: BasicYahooFinance::Util

Inherits:
Object
  • Object
show all
Defined in:
lib/basic_yahoo_finance/util.rb

Overview

Small useful utility methods

Class Method Summary collapse

Class Method Details

.find_fx_symbol(quotes, currency1, currency2) ⇒ Object

Find correct FX symbol in quotes as the symbol format can vary



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# File 'lib/basic_yahoo_finance/util.rb', line 7

def self.find_fx_symbol(quotes, currency1, currency2)
  # Exception for USDCHF=X symbol as it is sometimes returned as CHF=X
  if currency1 == "USD" && currency2 == "CHF"
    quotes["USDCHF=X"].nil? ? "CHF=X" : "#{currency1}CHF=X"
  else
    "#{currency1}#{currency2}=X"
  end
end

.generate_currency_symbols(currencies, base_currency) ⇒ Object

Generate currency symbols array based on array of currencies and base currency



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# File 'lib/basic_yahoo_finance/util.rb', line 17

def self.generate_currency_symbols(currencies, base_currency)
  currency_symbols = []
  currencies.each do |currency|
    next if currency == base_currency

    currency_symbols.push("#{currency}#{base_currency}=X")
  end
  currency_symbols
end

.generate_fx_symbol(currency1, currency2) ⇒ Object

Generate symobol for foreign exchange rate lookup



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# File 'lib/basic_yahoo_finance/util.rb', line 28

def self.generate_fx_symbol(currency1, currency2)
  # Exception for USD against CHF which is formatted as 'CHF=X'
  if currency1 == "USD" && currency2 == "CHF"
    "#{currency2}=X"
  else
    "#{currency1}/#{currency2}"
  end
end