Rails 4 and date format validation

[glaucocustodio]

Hi guys, I am on Rails 4 (and ruby 2.0.0p195) and I had a curious experience.

I tried many ways to check date validity in my model.

For me, the better way to do it is using regex. My form (client side) just accepts date in this format 'dd/mm/yyyy', and in my table migration I have a date type field (my db is postgres).

My date always was returning as invalid, so I checked that Rails was converting it to psql date format ('yyyy-mm-dd') before to perform regex match.

Weird that the same code works in Rails 3.

See the gist: https://gist.github.com/glaucocustodio/6039161

Note: as well as in Rails 3 project, in my Rails 4 app I have a locales/pt-BR.yml and language set to it in application.rb.

If it is my own mistake, please, how I must to proceed?

Thank you.

[ehtb]

Glauco, which queries are you testing against?

Testing it on 3.2.14 and 4 yields the same result: a failure at the second assertion

require 'test_helper'

class UserTest < ActiveSupport::TestCase
  setup do
    @user = User.new
  end

  test 'valid date' do
    User.validates(:date_birth, format: { with: /[0-3]{1}[0-9]{1}\/[0-1]{1}[0-9]{1}\/[1-2]{1}[0-9]{3}/, message: "is bad data" })

    puts Rails.version

    @user.date_birth = '20/12/2012'
    assert @user.valid?, '20/12/2012'

    @user.date_birth = '2012/12/20'
    assert @user.valid?, '2012/12/20'
  end
end

ps. adding this as validations on the model makes no difference.

[rafaelfranca]

This doesn't seems an issue to me. It is more like a question.