added scope and few mods in controller

app/controllers/faqs_controller.rb

@@ -1,6 +1,7 @@
 class FaqsController < ApplicationController
 	def index
-		faqs = Qa.can_display.order_by(:created_at=>'desc').filter_by_categories.collect do |qa|
+		faqs = Qa.can_display.order_by(:created_at=>'desc').filter_by_categories
+			f = faqs.collect do |qa|
 			 statuses = qa.statuses.collect do |status|
 		        {
 		          "status" => status,
@@ -14,8 +15,8 @@ class FaqsController < ApplicationController
 			}
 		end
 		{
-	      "data" => faqs,
-	      "extras" => {"widget-title"=>"Faqs"}
+	      "data" => f,
+	      "extras" => {"widget-title"=>"Faqs"},
 	      "total_pages" => faqs.total_pages
 	    } 
 	end

app/models/qa.rb

@@ -22,6 +22,9 @@ class Qa
   
   accepts_nested_attributes_for :qa_files, :allow_destroy => true
   accepts_nested_attributes_for :qa_links, :allow_destroy => true
+
+  scope :can_display, ->{where(:is_hidden=>false).order_by([:is_top, :desc])}
+
   
   # belongs_to :qa_category