On Sep 17, 2014, at 9:09 AM, Matteo Panara <matteo.pan...@gmail.com> wrote:
> Why not? > > module ActiveModel > module Validations > class NumericalityValidator < EachValidator > CHECKS = { greater_than: :>, greater_than_or_equal_to: :>=, > equal_to: :==, less_than: :<, less_than_or_equal_to: :<=, > multiple_of: :multiple_of?, odd: :odd?, even: :even?, > odd: :odd?, even: :even?, other_than: :!= }.freeze > multiple_of isn’t a supported option for NumericalityValidator because the method only exists for integers. Here’s some previous discussion of this situation: https://github.com/rails/rails/pull/7216 (on why multiple_of isn’t defined for all of Numeric) https://github.com/rails/rails/pull/7213 (on adding this exact feature) TL;DR the core of the problem is that % is a tricky operator for floating-point numbers. 1.0 % 0.1, for instance, is usually NOT 0.0 like you’d expect… —Matt Jones
signature.asc
Description: Message signed with OpenPGP using GPGMail