Class: Numeric

Inherits:
Object show all
Defined in:
lib/iron/extensions/numeric.rb

Instance Method Summary collapse

Instance Method Details

#bound(min, max) ⇒ Object

Returns self, bounded to min/max values



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# File 'lib/iron/extensions/numeric.rb', line 5

def bound(min, max)
  min, max = max, min if max < min
  return min if min > self
  return max if max < self
  self
end

#to_display(decimal_count = nil, include_thousands = true) ⇒ Object 



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# File 'lib/iron/extensions/numeric.rb', line 12

def to_display(decimal_count = nil, include_thousands = true)
  res = ''
  decimal = self.to_s.extract(/\.([0-9]+)/)
  unless decimal.nil? || decimal_count.nil?
    decimal = decimal[0...decimal_count].ljust(decimal_count,'0')
  end
  val = self.to_i.abs
  if include_thousands
    while val > 999
      res.prepend(',' + (val % 1000).to_s.rjust(3,'0'))
      val /= 1000
    end
  end
  res.prepend(val.to_s) if val > 0 || res.empty?
  res = '-' + res if self < 0
  res = res + '.' + decimal unless decimal.blank?
  res
end