diff --git a/app/controllers/admin/page_parts_controller.rb b/app/controllers/admin/page_parts_controller.rb
index fea1bf3f..4f72f97e 100644
--- a/app/controllers/admin/page_parts_controller.rb
+++ b/app/controllers/admin/page_parts_controller.rb
@@ -73,7 +73,7 @@ class Admin::PagePartsController < ApplicationController
       params[:page_part][:category] = []
     end
 
-    params[:page_part][:widget_field].each{|t| t[2] = (t[2]=="true" ? true : false )}
+    params[:page_part][:widget_field].each{|t| t[2] = (t[2]=="true" ? true : false )} if !params[:page_part][:widget_field].blank?
 
     if @part.update_attributes(params[:page_part])
       set_children_sub_menu(@part) if @part.public_r_tag && @part.public_r_tag.eql?('sub_menu')
diff --git a/app/controllers/default_widget_controller.rb b/app/controllers/default_widget_controller.rb
index 686a0316..e938ca45 100644
--- a/app/controllers/default_widget_controller.rb
+++ b/app/controllers/default_widget_controller.rb
@@ -20,13 +20,13 @@ class DefaultWidgetController< OrbitWidgetController
       if params["category_id"].blank?
         result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).entries.collect{|t| t.id}}.flatten
       else
-        result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).where(:category_id=>params["category_id"]).available_for_lang(I18n.locale).can_display.collect{|t| t.id}}.flatten
+        result_ids = @tags.collect{|tag| tag.send(ori_class_name.downcase.pluralize).where(:category_id.in=>params["category_id"]).available_for_lang(I18n.locale).can_display.collect{|t| t.id}}.flatten
       end
       result = eval("#{ori_class_name}.where(:id=>result_ids)")
     elsif params["category_id"].blank?
         result = eval(@default_widget["query"])
       else
-        result = eval("#{ori_class_name}.where(:category_id=>params['category_id'])")
+        result = eval("#{ori_class_name}.where(:category_id.in=>params['category_id'])")
     end
     result.available_for_lang(I18n.locale).can_display
   end