Template.recentNotifications.helpers({
  // Check the current notification type for template usage.
  notificationType: function (type) {
    return this.type === type;
  },
  // Return set of notifcation cursors.
  notifications: function () {
    return Notifications.find( {}, { sort: { createdAt: -1 } } );
  },
  // Helper for comment related notification data.
  comment: function() {
    Meteor.subscribe('commentPostId', this.sourceId);
    return Comments.findOne(this.sourceId);
  }
});