Add atom & rss feed links

Gemfile.lock

@@ -427,4 +427,4 @@ DEPENDENCIES
   webmock
 
 BUNDLED WITH
-   1.10.4
+   1.10.5

app/controllers/events_controller.rb

@@ -1,7 +1,7 @@
 class EventsController < ApplicationController
-  before_filter :authenticate_user!, except: [:index, :past_events, :all_events, :show, :levels]
-  before_filter :find_event, except: [:index, :past_events, :all_events, :create, :new]
-  before_filter :validate_organizer!, except: [:index, :past_events, :all_events, :create, :show, :new, :levels]
+  before_filter :authenticate_user!, except: [:index, :feed, :past_events, :all_events, :show, :levels]
+  before_filter :find_event, except: [:index, :feed, :past_events, :all_events, :create, :new]
+  before_filter :validate_organizer!, except: [:index, :feed, :past_events, :all_events, :create, :show, :new, :levels]
   before_filter :set_time_zone, only: [:create, :update]
 
   def index
@@ -15,6 +15,15 @@ def index
     end
   end
 
+  def feed
+    @events = Event.upcoming.published_or_organized_by(current_user).includes(:event_sessions, :location, :chapter)
+
+    respond_to do |format|
+      format.rss {render 'events/feed.rss.builder', layout: false}
+      format.atom {render 'events/feed.atom.builder', layout: false}
+    end
+  end
+
   def past_events
     respond_to do |format|
       format.json { render json: sort_by_starts_at(combined_past_events_for_json) }

app/views/events/feed.atom.builder

@@ -0,0 +1,16 @@
+atom_feed do |feed|
+  feed.title("RailsBridge")
+  feed.link root_url
+  feed.updated @events.last.updated_at
+  feed.id root_url
+
+  @events.each do |event|
+    feed.entry(event) do |entry|
+      entry.title(event.title)
+      entry.summary(event.details, type: 'html')
+      entry.link event_path(event)
+      entry.id event_path(event)
+      entry.updated event.updated_at
+    end
+  end
+end

app/views/events/feed.rss.builder

@@ -0,0 +1,18 @@
+xml.instruct! :xml, :version => "1.0" 
+xml.rss :version => "2.0" do
+  xml.channel do
+    xml.title "RailsBridge" 
+    xml.link root_url
+    xml.language "en"
+
+    for event in @events
+      xml.item do
+        xml.title event.title
+        xml.pubDate event.created_at.to_s(:rfc822)
+        xml.link event_path(event)
+        xml.guid event_path(event)
+        xml.description event.details
+      end
+    end
+  end
+end

app/views/events/index.html.erb

@@ -21,6 +21,12 @@
       <% end %>
     </div>
 
+    <p>
+      Subscribe to our calendar via: 
+      <%= link_to "RSS", feed_events_path(format: :rss) %>
+      <%= link_to "Atom", feed_events_path(format: :atom) %>
+    </p>
+
     <% if user_signed_in? %>
       <h1>Get Involved</h1>
       <% links = [

config/routes.rb

@@ -30,6 +30,10 @@
       post :arrange, on: :collection
     end
 
+    collection do
+      get :feed
+    end
+
     resources :rsvps, except: [:show, :index, :new] do
       new do
         get :volunteer

spec/controllers/events_controller_spec.rb

@@ -464,4 +464,62 @@ def make_request
       result_titles.should == [@past_event, @past_external_event, @future_external_event, @future_event].map(&:title)
     end
   end
+
+  describe "GET feed" do
+    let!(:event) { create(:event, title: 'DonutBridge') }
+    let!(:other_event) { create(:event, title: 'C5 Event!') }
+    render_views
+
+    context "when format is RSS" do
+      before do
+        get :feed, format: :rss
+      end
+
+      it "successfully directs to xml rss feed" do
+        response.should be_success
+
+        event.should be_in(assigns(:events))
+        other_event.should be_in(assigns(:events))
+      end
+
+      it "has rss formatting" do
+        response.body.should include 'rss'
+      end
+
+      it "includes the website title" do
+        response.body.should include ('RailsBridge')
+      end
+
+      it "includes all events" do
+        response.body.should include ('DonutBridge')
+        response.body.should include ('C5 Event!')
+      end
+    end
+
+    context "when format is Atom" do
+      before do
+        get :feed, format: :atom
+      end
+
+      it "successfully directs to xml rss feed" do
+        response.should be_success
+
+        event.should be_in(assigns(:events))
+        other_event.should be_in(assigns(:events))
+      end
+
+      it "has rss formatting" do
+        response.body.should include 'feed'
+      end
+
+      it "includes the website title" do
+        response.body.should include ('RailsBridge')
+      end
+
+      it "includes all events" do
+        response.body.should include ('DonutBridge')
+        response.body.should include ('C5 Event!')
+      end
+    end
+  end
 end