donncha-validates_as_email

ValidatesAsEmail

This gem/plugin is a re-packaged and gem'ified version of the original plugin with credit as follows:

Donncha Redmond [e-mail] Michal Zima [e-mail] Ximon Eighteen [e-mail] Dan Kubb [e-mail] Thijs van der Vossen [e-mail]

This Ruby on Rails plugin implements an ActiveRecord validation helper called validates_as_email. The helper acts as if validates_format_of was used with a regular expression that defines an RFC822 email address conformance test.

The plugin implements the regular expression here:

http://tfletcher.com/lib/rfc822.rb

Which is an implementation in Ruby of a regular expression published by Cal Henderson for PHP here:

http://www.iamcal.com/publish/articles/php/parsing_email

Installation:

gem sources -a http://gems.github.com

Install the gem(s): sudo gem install donncha-validates_as_email

Add to environment.rb initializer block: config.gem 'donncha-validates_as_email', :lib => 'validates_as_email', :source => 'http://gems.github.com'

Usage:

In your model file do something like:

class MyClass < ActiveRecord::Base validates_as_email :email, :message => 'Invalid Email Address', :allow_nil => true end

class MyOtherClass < ActiveRecord::Base

will not accept addresses with a single part domain, e.g user@example

validates_as_email :email, :message => 'Invalid Email Address', :allow_nil => true, :restrict_domain => true end

Tests:

Some tests have been added.

License:

See the LICENSE file.