ValidateUrl
This gem adds the capability of validating URLs to ActiveRecord (Rails 2) and ActiveModel (Rails 3).
Installation
# add this to your Gemfile (Rails 3)
gem "validate_url"
# add this to environment.rb
config.gem "validate_url"
# and then run
rake gems:install
# or just run
sudo gem install validate_url
Usage
With ActiveRecord in Rails 3
class Pony < ActiveRecord::Base
# standard validation
validates :homepage, :url => true
# with allow_nil
validates :homepage, :url => {:allow_nil => true}
# with allow_blank
validates :homepage, :url => {:allow_blank => true}
end
With ActiveRecord in Rails 2
class Pony < ActiveRecord::Base
validates_url :homepage, :allow_blank => true
end
With ActiveModel
class Unicorn
include ActiveModel::Validations
attr_accessor :homepage
# with legacy syntax (the syntax above works also)
validates_url :homepage, :allow_blank => true
end
I18n
The default error message is not valid url
.
You can pass the :message => "my custom error"
option to your validation to define your own, custom message.
Authors
Tanel Suurhans (http://twitter.com/tanelsuurhans) Tarmo Lehtpuu (http://twitter.com/tarmolehtpuu)
License
Copyright 2010 by PerfectLine LLC (http://www.perfectline.co.uk) and is released under the MIT license.