*sigh* rails

app/models/story.rb

@@ -65,12 +65,11 @@ class Story < ApplicationRecord
    wp.me ➡.ws ✩.ws x.co yep.it yourls.org zip.net }.freeze

  # URI.parse is not very lenient, so we can't use it
  URL_RE = /\A(?<protocol>https?):\/\/(?<domain>([^\.]+\.)+[a-z]+)(?<port>:\d+)?(\/|\z)/i
  URL_RE = /\A(?<protocol>https?):\/\/(?<domain>([^\.\/]+\.)+[a-z]+)(?<port>:\d+)?(\/|\z)/i

  attr_accessor :already_posted_story, :editing_from_suggestions, :editor,
                :fetching_ip, :is_hidden_by_cur_user, :is_saved_by_cur_user,
                :moderation_reason, :previewing, :seen_previous, :vote
  attr_reader :domain
  attr_writer :fetched_content

  before_validation :assign_short_id_and_upvote, :on => :create
@@ -724,13 +723,19 @@ def update_merged_into_story_comments
    end
  end

  def domain
    return @domain if @domain
    set_domain self.url.match(URL_RE) if self.url
  end

  def set_domain match
    @domain = match ? match[:domain].sub(/^www\d*\./, '') : nil
  end

  def url=(u)
    super(u) or return if u.blank?

    if (match = u.match(URL_RE))
      # set domain
      @domain = match[:domain].sub(/^www\d*\./, '')

      # remove well-known port for http and https if present
      @url_port = match[:port]
      if match[:protocol] == 'http'  && match[:port] == ':80' ||
@@ -739,6 +744,7 @@ def url=(u)
        @url_port = nil
      end
    end
    set_domain match

    # strip out stupid google analytics parameters
    if (match = u.match(/\A([^\?]+)\?(.+)\z/))

spec/models/story_spec.rb

@@ -89,6 +89,16 @@
    end
  end

  it "has domain straight out of the db, when Rails doesn't use setters" do
    s = Story.make!(url: 'https://example.com/foo.html')
    s = Story.find(s.id)
    expect(s.domain).to eq('example.com')
    s.url = 'http://example.org'
    expect(s.domain).to eq('example.org')
    s.url = 'invalid'
    expect(s.domain).to be_nil
  end

  it "converts a title to a url properly" do
    s = Story.make!(:title => "Hello there, this is a title")
    expect(s.title_as_url).to eq("hello_there_this_is_title")