UrlAttribute 
ActiveModel attribute serialization for urls.
Usage
Assuming you have a column named url on the users table, you can easily add url handling with:
class User < ActiveRecord::Base
url_attribute :url
end
user = User.new({
url: "chingr.com"
})
user.url.class
=> UrlAttribute::NormalizedUrl
user.url.to_s
=> "http://chingr.com"
user.url = nil
user.url
=> nil
You can also specify a column to ignore url normalization.
class User < ActiveRecord::Base
url_attribute :stem, normalize: false
end
user = User.create({
name: "Jeff",
stem: "chingr.com"
})
user.stem.to_s
=> "chingr.com"
Validating
UrlAttribute provides validation to ActiveModel. To use:
class User < ActiveRecord::Base
url_attribute :url
validates :url, url: {
allow_blank: true,
message: "is invalid"
}
end
user = User.new({
name: "Jeff",
url: "some invalid url"
})
user.save
=> false
user.errors.full_messages
=> ["Url is invalid"]
License
This project rocks and uses MIT-LICENSE.