Module: Tax

Defined in:
lib/tax.rb

Constant Summary collapse

TAX_TYPES =

消費税区分

{
  TAX_TYPE_NONTAXABLE = 1 => '非課税',
  TAX_TYPE_INCLUSIVE = 2 => '内税',
  TAX_TYPE_EXCLUSIVE = 3 => '外税',
}
RATE_3 = 
Date.parse('1989-04-01')
RATE_5 = 
Date.parse('1997-04-01')
RATE_8 = 
Date.parse('2014-04-01')

Class Method Summary collapse

Class Method Details

.get_rate_on(date, options = {}) ⇒ Object 



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# File 'lib/tax.rb', line 16

def self.get_rate_on(date, options = {})
  if (date.is_a?(String))
    date = Date.parse(date)
  end

  if (date >= RATE_3 && date < RATE_5)
    ret = 0.03;
  elsif (date >= RATE_5 && date < RATE_8)
    ret = 0.05;
  elsif (date >= RATE_8)
    ret = 0.08;
  else
    ret = 0
  end

  if options[:percent]
    ret *= 100
  end
  
  ret
end