Validators for ActiveRecord and ActiveModel.

Add this line to your application's Gemfile:

gem 'apress-validators'

And then execute:

$ bundle install

CountValidator - behaves similarly to LengthValidator, but designed only for associated records. Does not count records that are marked for destruction. Takes the same options as LengthValidator.

validates :image, :count => {:maximum => 24}
validates :image, :count => {:minimum => 2, message: 'Must have at lest 2 images'}
validates :image, :count => {:is => 3, :allow_nil => true}

1. Fork it ( https://github.com/[my-github-username]/apress-validators/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request