Dedecimalised whole numbers in ruby - This extends and overrides ruby core `BigDecimal#to_s`. Caution: Don't do this - bad things begin to happen very quickly in other gems and third part addons PS: If must be used, use with extreme caution as this behaviour will likely cause issues and incompatibility with other libraries.

dedecimalised-integers.rb

# Extends Ruby BigDecimal class so we have an updated to_s method that returns numbers witheout the ZERO at the end
# if the number is an integer.
#   e,g. '12.0'.to_s => 12
#        '9.23'.to_s => 9.23

class BigDecimal
  alias_method(:original_to_s, :to_s) unless method_defined?(:original_to_s)

  def is_whole_number?
    self % 1 == 0
  end

  def to_s(*args)
    if is_whole_number?
      to_i.to_s
    else
      original_to_s(*args)
    end
  end
end