Module: HasMoney::ClassMethods

Defined in:
lib/has_money.rb

Instance Method Summary collapse

Instance Method Details

#calculate_cents_from_dollars(dollars) ⇒ Object 



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# File 'lib/has_money.rb', line 39

def calculate_cents_from_dollars(dollars)
  return nil if dollars.nil?

  dollars = dollars.to_s.gsub(/[$,]/, "").strip
  dollars[0] = '0.' if dollars =~ /^\.\d{1,2}/
  return nil unless dollars.match(/^-?\d+\.?(\d+)?$/) # xx.xxx

  (BigDecimal(dollars).round(2) * 100).to_i
end

#calculate_cents_from_dollars_without_cents(dollars) ⇒ Object 



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# File 'lib/has_money.rb', line 54

def calculate_cents_from_dollars_without_cents(dollars)
  return nil if dollars.nil?

  dollars = dollars.to_s.gsub(/[$,]/, "").strip
  dollars[0] = '0.' if dollars =~ /^\.\d{1,2}/
  return nil unless dollars.match(/^-?\d+\.?(\d+)?$/) # xx.xxx

  (BigDecimal(dollars).round * 100).to_i
end

#calculate_dollars_from_cents(cents) ⇒ Object 



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# File 'lib/has_money.rb', line 34

def calculate_dollars_from_cents(cents)
  return nil if cents.nil? ||  cents == ''
  "%.2f" % (BigDecimal(cents.to_s) / 100).to_f
end

#calculate_dollars_without_cents_from_cents(cents) ⇒ Object 



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# File 'lib/has_money.rb', line 49

def calculate_dollars_without_cents_from_cents(cents)
  return nil if cents.nil? ||  cents == ''
  "%i" % (BigDecimal(cents.to_s) / 100).to_f.round
end

#has_money(*attributes) ⇒ Object 



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# File 'lib/has_money.rb', line 11

def has_money(*attributes)
  attributes.each do |attribute|
    class_eval "      def \#{attribute}_in_dollars\n        self.class.calculate_dollars_from_cents(\#{attribute})\n      end\n\n      def \#{attribute}_in_dollars=(dollars)\n        self.\#{attribute} = self.class.calculate_cents_from_dollars(dollars)\n      end\n\n      # Special dollars only formatting (no decimal place and rounded to the nearest dollar)\n      def \#{attribute}_in_dollars_without_cents\n        self.class.calculate_dollars_without_cents_from_cents(\#{attribute})\n      end\n\n      def \#{attribute}_in_dollars_without_cents=(dollars)\n        self.\#{attribute} = self.class.calculate_cents_from_dollars_without_cents(dollars)\n      end\n    EOS\n  end\nend\n"