UrlFormat
This gem validates a URL, adds the http:// prefix if not included, and provides a get_domain method.
Installation
Add this line to your application's Gemfile:
gem 'url_format'
And then execute:
$ bundle
Or install it yourself as:
$ gem install url_format
Usage
Using it is as simple as using the validates keyword in your model:
class User < ActiveRecord::Base
# ...
validates :url, url_format: true
# ...
endNow the url attribute will be validated accordingly:
User.new(url: 'http://example.com').valid? # => true
User.new(url: 'invalid_url..com').valid? # => falseAlso, the model in question doesn't need to inherit from ActiveRecord::Base, you only need to include ActiveModel::Validations in your class:
require 'url_format'
class Awesome
include ActiveModel::Validations
attr_accessor :url
validates :url, url_format: true
def domain
UrlFormat.get_domain(url)
end
end
awesome = Awesome.new
awesome.url = "www.example.com"
awesome.valid? # => true
awesome.url # => 'http://www.example.com'
awesome.domain # => 'example.com'
awesome.url = "invalid_url"
awesome.valid? # => falseThe gem can ensure that a url is prefixed with http:// as well:
UrlFormat.ensure_http_prefix('google.com') # => 'http://google.com'
UrlFormat.ensure_http_prefix('https://google.com') # => 'https://google.com'Contributing
- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Add some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request