ErrorMerger

Adds a #merge method to ActiveModel-compliant models.

Allows the merging/consolidation of errors on multiple models to make it easy to pass into some kind of error renderer.

Also adds #full_sentence and #full_sentences methods, with are comparable to #full_message and #full_messages respectively, except they ensure each error message always ends with a period.

Installation

Add this line to your application's Gemfile:

gem 'error_merger'

And then execute:

$ bundle

Or install it yourself as:

$ gem install error_merger

Usage

  @user = User.new user_params
  @user.valid? # => false
  @account = Account.new account_params
  @account.valid? # => false
  @account.errors.merge @user

  @account.errors.full_messages # => will include errors for both Account and User

  @user.errors.full_messages # => ["Username can't be blank"]
  @user.errors.full_sentences # => ["Username can't be blank."]

By default merged errors are prefixed with the model name. In the above example, an error on User might look like: "User: First name must not be blank".

The default behavior is the equivalent to: @account.errors.merge @user, 'User: '

To skip prefixing, pass an empty string: ''.

Contributing

1. Fork it
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 new Pull Request