Add upvoted route.

Upvoted route shows all stories a logged in user have upvoted
in reverse chronological order, latest upvote first.
It is not shown in the gui, but reachable at /upvoted.

app/controllers/home_controller.rb

@@ -2,6 +2,7 @@ class HomeController < ApplicationController
  # for rss feeds, load the user's tag filters if a token is passed
  before_filter :find_user_from_rss_token, :only => [ :index, :newest ]
  before_filter { @page = page }
  before_filter :require_logged_in_user, :only => [:upvoted]

  def about
    begin
@@ -163,6 +164,30 @@ def top
    render :action => "index"
  end

  def upvoted
    @stories, @show_more = get_from_cache(upvoted: true, user: @user) {
      paginate @user.upvoted_stories.order('votes.id DESC')
    }

    @heading = @title = "Upvoted"
    @cur_url = "/upvoted"

    @rss_link = { :title => "RSS 2.0 - Upvoted Items",
      :href => "/upvoted.rss#{(@user ? "?token=#{@user.rss_token}" : "")}" }

    respond_to do |format|
      format.html { render :action => "index" }
      format.rss {
        if @user && params[:token].present?
          @title += " - Private feed for #{@user.username}"
        end

        render :action => "rss", :layout => false
      }
      format.json { render :json => @stories }
    end
  end

private
  def filtered_tag_ids
    if @user

app/models/story.rb

@@ -11,6 +11,10 @@ class Story < ActiveRecord::Base
  has_many :comments,
    :inverse_of => :story
  has_many :tags, :through => :taggings
  has_many :votes, -> { where(:comment_id => nil) }
  has_many :voters, -> { where('votes.comment_id' => nil) },
    :through => :votes,
    :source => :user

  scope :unmerged, -> { where(:merged_story_id => nil) }

app/models/user.rb

@@ -20,6 +20,14 @@ class User < ActiveRecord::Base
    :class_name => "User"
  has_many :invitations
  has_many :weblogs
  has_many :votes
  has_many :voted_stories, -> { where('votes.comment_id' => nil) },
    :through => :votes,
    :source => :story
  has_many :upvoted_stories,
    -> { where('votes.comment_id' => nil, 'votes.vote' => 1) },
    :through => :votes,
    :source => :story

  has_secure_password

config/routes.rb

@@ -28,6 +28,9 @@
      get "/hidden" => "home#hidden"
      get "/hidden/page/:page" => "home#hidden"

      get "/upvoted(.format)" => "home#upvoted"
      get "/upvoted/page/:page" => "home#upvoted"

      get "/top" => "home#top"
      get "/top/page/:page" => "home#top"
      get "/top/:length" => "home#top"

spec/controllers/home_controller_spec.rb

@@ -1,6 +1,10 @@
describe HomeController do
  before { Rails.cache.clear }
  before { StoriesPaginator.any_instance.should_receive(:get).and_return [scope, true] }
  before {
    unless example.metadata[:skip_before]
      StoriesPaginator.any_instance.should_receive(:get).and_return [scope, true]
    end
  }

  describe 'GET index' do
    let(:scope) { double 'Hottest Scope' }
@@ -127,4 +131,9 @@
      end
    end
  end

  describe 'GET upvoted', skip_before: true do
    before { get 'upvoted' }
    it { should redirect_to(login_path) }
  end
end