added a notificaions read button

app/controllers/notifications_controller.rb

@@ -23,4 +23,8 @@ class NotificationsController < ApplicationController
     respond_with @notifications
   end
 
+  def read_all
+    Notification.where(:recipient_id => current_user.id).update_all(:unread => false)
+    redirect_to :back
+  end
 end

app/views/notifications/index.html.haml

@@ -1,4 +1,14 @@
 :javascript
+  $('.mark_all_read').live('click', function(){
+    $.ajax({
+      url: 'notifications/read_all', 
+      success: function(data, status, xhr) {
+        $('.message').removeClass('unread');
+        $("#notification_badge_number").addClass("hidden");
+      }
+    });
+  });
+
   $('.message').live('click', function(evt){
     var note = $(this).closest('.message'),
         note_id = note.attr('data-guid'),
@@ -23,9 +33,12 @@
 
 .span-1
   = image_tag 'icons/mail_big.png', :height => 30, :width => 30, :style=>"margin-top:3px;"
-.span-23.last
+.span-10
   %h2
     = t('.notifications')
+.span-13.last.left
+  .button.mark_all_read
+    = link_to "Mark All as Read", "#"
 
 .span-24.last
   %ul.stream.notifications

config/routes.rb

@@ -8,11 +8,10 @@ Diaspora::Application.routes.draw do
   resources :requests,        :only => [:destroy, :create]
   resources :services
 
-  resources :notifications
+  match 'notifications/read_all' => 'notifications#read_all'
+  resources :notifications,   :only => [:index, :update]
   resources :posts,           :only => [:show], :path => '/p/'
 
-
-
   match '/people/share_with' => 'people#share_with', :as => 'share_with'
   resources :people do
     resources :status_messages

public/stylesheets/sass/application.sass

@@ -2142,3 +2142,6 @@ ul.show_comments
       :margin
         :left 0.5em
         :right 0.5em
+.mark_all_read
+  :position relative 
+  :top 10px

spec/controllers/notifications_controller_spec.rb

@@ -32,4 +32,17 @@ describe NotificationsController do
       Notification.find(note.id).unread.should == true
     end
   end
+  
+  describe "#read_all" do
+    it 'marks all notifications as read' do
+      Notification.create(:recipient_id => user.id)
+      Notification.create(:recipient_id => user.id)
+
+      Notification.where(:unread => true).count.should == 2
+      get :read_all
+      Notification.where(:unread => true).count.should == 0
+      
+
+    end
+  end
 end