Module: EasyMoney::ClassMethods

Defined in:
lib/easy_money.rb

Instance Method Summary collapse

Instance Method Details

#easy_money(method, *args) ⇒ Object

Creates an money instance method for the given method, named “#method_money” which returns a formatted money string, and a #method_money= method used to set an edited money string. The original method stores the value as integer (cents, or other precision/currency setting). Options:

  • :money_method - Use this as the alternative name to the money-access methods

  • :units - Use this as an alternative suffix name to the money methods (‘dollars’ gives ‘xx_dollars’)

  • :precision - The number of digits implied after the decimal, default is 2

  • :separator - The character to use after the integer part, default is ‘.’

  • :delimiter - The character to use between every 3 digits of the integer part, default none

  • :positive - The sprintf format to use for positive numbers, default is based on precision

  • :negative - The sprintf format to use for negative numbers, default is same as :positive

  • :zero - The sprintf format to use for zero, default is same as :positive

  • :nil - The sprintf format to use for nil values, default none

  • :unit - Prepend this to the front of the money value, say ‘$’, default none

  • :blank - Return this value when the money string is empty or has no digits on assignment

  • :negative_regex - A Regular Expression used to determine if a number is negative (and without a - sign)



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# File 'lib/easy_money.rb', line 26

def easy_money(method, *args)
  opt = args.last.is_a?(Hash) ? args.pop : {}
  money_method = opt.delete(:money_method) || "#{method}_#{opt.delete(:units)||'money'}"

  class_eval %Q(
  def #{money_method}(*args)
    opt = args.last.is_a?(Hash) ? args.pop : {}
    EasyMoney.integer_to_money( #{method}, #{opt.inspect}.merge(opt))
  end

  def #{money_method}=(v, *args)
    opt = args.last.is_a?(Hash) ? args.pop : {}
    self.#{method} = EasyMoney.money_to_integer( v, #{opt.inspect}.merge(opt))
  end
  )
end