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url_validation — Simple URL validator for Rails 3

Author Tim Morgan
Version 1.0 (May 9, 2011)
License Released under the MIT license.


This gem adds a very simple URL format validator to be used with ActiveRecord
models in Rails 3.0. It supports localized error messages. It can validate many
different kinds of URLs, including HTTP and HTTPS. It supports advanced
validation features like sending HEAD requests to URLS to verify that they are
valid endpoints.


Add the gem to your project’s Gemfile:

gem 'url_validation'


This gem is an EachValidator, and thus is used with the validates method:

class User < ActiveRecord::Base
  validates :terms_of_service_link,
            :presence => true,
            :url => true

There are other options to fine-tune your validation; see the {UrlValidator}
class for more, and for a list of error message localization keys.