Fix bugs.(Add filter_by_tags and Add criteria_title to index)

app/controllers/admin/e_papers_controller.rb

@@ -7,6 +7,7 @@ class Admin::EPapersController < OrbitAdminController
   	@filter_fields.delete(:status)
   	@papers = EPaperTopic.order_by(sort)
   	                    .with_categories(filters("category"))
+                        .with_tags(filters("tag"))
   	                 
   	                     
 		@papers = search_data(@papers,[:title]).page(params[:page]).per(10)

app/controllers/e_papers_controller.rb

@@ -1,10 +1,11 @@
 class EPapersController < ApplicationController
 
   def index
-    topics = EPaperTopic.filter_by_categories.desc(:period)
+    topics = EPaperTopic.filter_by_categories.filter_by_tags.desc(:period)
     data = topics.collect do |topic|
       {
         "title" => topic.title,
+        "criteria_title" => topic.criteria_title,
         "link_to_show" => OrbitHelper.url_to_show(topic.to_param),
         "description" => topic.description,
         "img_url" => topic.image.url,
@@ -144,7 +145,7 @@ class EPapersController < ApplicationController
   end
 
   def category_wise_articles
-    topics = EPaperTopic.filter_by_widget_categories.desc(:period)
+    topics = EPaperTopic.filter_by_widget_categories.filter_by_tags(OrbitHelper.widget_tags).desc(:period)
     data = Array(topics).compact.collect do |topic|
       {
         "title" => topic.title,