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."]
  @user.errors.as_sentences # => "First name can't be blank. Last name 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