fix error for comment and bundle update

app/controllers/announcements_controller.rb

@@ -1,4 +1,5 @@
 class AnnouncementsController < ApplicationController
+  ViewRootDir = File.expand_path("../../views", __FILE__)
   include AnnouncementsHelper
   DefaultImgSrc = "/assets/announcement-default.jpg\" onerror=\"this.src=&quot;/assets/announcement-default-2.jpg&quot;;this.onerror='';"
   def initialize
@@ -29,6 +30,12 @@ class AnnouncementsController < ApplicationController
       AnnouncementSetting.first.enable_manually_sort rescue false
     end
   end
+  def render_400
+    render(:file => "#{ViewRootDir}/announcements/400.html", :layout => false, :status => 400, :formats => [:html])
+  end
+  def render_404
+    render(:file => "#{Rails.root}/app/views/errors/404.html", :layout => false, :status => 404, :formats => [:html])
+  end
   def comment
     @bulletin = Bulletin.where(:uid=>params[:uid]).first
     comment_val = params['comment']
@@ -38,6 +45,8 @@ class AnnouncementsController < ApplicationController
       b.bulletin_id = @bulletin.id
       b.save
       render :json => {}
+    else
+      render_404
     end
   end
   def index
@@ -1018,6 +1027,15 @@ class AnnouncementsController < ApplicationController
       },
       "total_pages" => total_pages
     }
+    @layout_type = params[:layout_type]
+    if @layout_type.blank?
+      @layout_type = 'annc_index1'
+    else
+      @layout_type = @layout_type.to_s
+      if File.dirname(@layout_type) != '.'
+        render_400 and return
+      end
+    end
     render :layout => false
   end