Fob

Fob is a simple class you can subclass your Form Objects from. It includes ActiveModel and Virtus.

Add this line to your application's Gemfile:

gem 'fob'

And then execute:

$ bundle

Or install it yourself as:

$ gem install fob

class MyForm < Fob::Fob
  represents :user, with: :username, :email
  has_one :company, with: :name
  attribute :remember_me, Boolean
  validates :username, presence: true
  validates :email, presence: true
end

It supports saving and persistance checking based on your definition of saving. The save method will yield the attributes hash to your provided block. Your block should exit with true/false.

MyForm.save |attributes|
  # Do some logic to save
  true
end

It supports checking uniqueness using the uniqueness_on validator. To use the validator you must secify which class should be used to test for uniqueness. The exists? method will be called on the class and is given a hash of the attribute name and value. This should work as-is with an ActiveRecord model and is straightforward to implement on other class types.

class MyForm < Fob::Fob
  represents :user, with: :username, :email
  has_one :company, with: :name
  attribute :remember_me, Boolean
  validates :username, presence: true
  validates :email, presence: true, uniqueness_on: { class_name: 'User' }
end

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