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Extends ActiveModel::Errors to allow messages to be generated that do not use the attribute name

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GoodMeasuresLLC/activemodel-error_messages_without_attributes

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ActiveModel::ErrorMessagesWithoutAttributes

Extends ActiveModel::Errors to allow messages to be generated that do not use the attribute name. Sometimes, you just want to use a custom error message without jumping through a lot of rails hoops. With this gem, you specify an error message of '^Just use this error' and the attribute name will not be included in full_error messages for that attribute.

Installation

Add this line to your application's Gemfile:

gem 'activemodel-error_messages_without_attributes'

And then execute:

$ bundle

Or install it yourself as:

$ gem install activemodel-error_messages_without_attributes

Usage

  class User < ActiveRecord::Base
    validates :first_name,
      :presence => {:message => 'cannot be blank.'},
      :length => {:maximum => 64, :message => '^What are you thinking?'}

    validates :last_name, :presence => true
  end

Error messages work the same as the defaults

  user_without_name = User.new
  user_without_name.valid?

  user_without_name.errors.full_messages_for(:first_name)
  # ["First name cannot be blank."]

  user_without_name.errors.full_messages_for(:first_name)
  # ["Last name can't be blank"]

Error messages starting with ^ do not include the attribute

  user_with_too_long_a_name = User.new('a'*65)
  user_with_too_long_a_name.valid?

  user_with_too_long_a_name.full_messages_for(:first_name)
  # ["What are you thinking?"]

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/activemodel-error_messages_without_attributes. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the ActiveModel::ErrorMessagesWithoutAttributes project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

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Extends ActiveModel::Errors to allow messages to be generated that do not use the attribute name

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