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Contents
# frozen_string_literal: true
require "money/currency/loader"
class Money
class Currency
@@mutex = Mutex.new
@@loaded_currencies = {}
class UnknownCurrency < ArgumentError; end
class << self
def new(currency_iso)
raise UnknownCurrency, "Currency can't be blank" if currency_iso.nil? || currency_iso.to_s.empty?
iso = currency_iso.to_s.downcase
@@loaded_currencies[iso] || @@mutex.synchronize { @@loaded_currencies[iso] = super(iso) }
end
alias_method :find!, :new
def find(currency_iso)
new(currency_iso)
rescue UnknownCurrency
nil
end
def currencies
@@currencies ||= Loader.load_currencies
end
end
attr_reader :iso_code, :iso_numeric, :name, :smallest_denomination, :subunit_symbol,
:subunit_to_unit, :minor_units, :symbol, :disambiguate_symbol, :decimal_mark
def initialize(currency_iso)
data = self.class.currencies[currency_iso]
raise UnknownCurrency, "Invalid iso4217 currency '#{currency_iso}'" unless data
@symbol = data['symbol']
@disambiguate_symbol = data['disambiguate_symbol'] || data['symbol']
@subunit_symbol = data['subunit_symbol']
@iso_code = data['iso_code']
@iso_numeric = data['iso_numeric']
@name = data['name']
@smallest_denomination = data['smallest_denomination']
@subunit_to_unit = data['subunit_to_unit']
@decimal_mark = data['decimal_mark']
@minor_units = subunit_to_unit == 0 ? 0 : Math.log(subunit_to_unit, 10).round.to_i
freeze
end
def eql?(other)
self.class == other.class && iso_code == other.iso_code
end
def hash
[ self.class, iso_code ].hash
end
def compatible?(other)
other.is_a?(NullCurrency) || eql?(other)
end
alias_method :==, :eql?
alias_method :to_s, :iso_code
end
end
Version data entries
16 entries across 16 versions & 1 rubygems