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A simple, ORM agnostic, Ruby 1.9 compatible date validator for Rails 3, based on ActiveModel.

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date_validator Build Status

A simple date validator for Rails 3. Should be compatible with all latest Rubies.

$ gem install date_validator

And I mean simple. In your model:

validates :expiration_date, date: true

or with some options, such as:

validates :expiration_date,
          date: { after: Proc.new { Time.now },
                  before: Proc.new { Time.now + 1.year } }
# Using Proc.new prevents production cache issues

If you want to check the date against another attribute, you can pass it a Symbol instead of a block:

# Ensure the expiration date is after the packaging date
validates :expiration_date,
          date: { after: :packaging_date }

For now the available options you can use are :after, :before, :after_or_equal_to and :before_or_equal_to.

If you want to specify a custom message, you can do so in the options hash:

validates :start_date,
  date: { after: Proc.new { Date.today }, message: 'must be after today' },
  on: :create

Pretty much self-explanatory! :)

If you want to make sure an attribute is before/after another attribute, use:

validates :start_date, date: { before: :end_date }

Note on Patches/Pull Requests

  • Fork the project.
  • Make your feature addition or bug fix.
  • Add tests for it. This is important so I don't break it in a future version unintentionally.
  • Commit, do not mess with rakefile, version, or history. (if you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull)
  • Send us a pull request. Bonus points for topic branches.

Copyright

Copyright (c) 2013 Codegram. See LICENSE for details.

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