Fix filter category in news

app/controllers/orbit_backend_controller.rb

@@ -62,30 +62,23 @@ class OrbitBackendController< ApplicationController
         case key
           when 'status'
             a = Array.new
-            objects.each do |bulletin|
+            objects.each do |object|
               value.each do |v|
-                case v
-                  when 'pending'
-                    a << bulletin if bulletin.is_checked.nil?
-                  when 'rejected'
-                    a << bulletin if bulletin.is_checked.eql?(false)
-                  else
-                    a << bulletin if bulletin[v]
-                end
+                a << object if object[v]
               end
             end
             objects = a.uniq
           when 'categories'
             a = Array.new
-            objects.each do |bulletin|
-              a << bulletin if value.include?(bulletin.bulletin_category.id.to_s)
+            objects.each do |object|
+              a << object if value.include?(object.send("#{object.class.to_s.underscore}_category").id.to_s)
             end
             objects = a.uniq
           when 'tags'
             a = Array.new
-            objects.each do |bulletin|
-              bulletin.tags.each do |tag|
-                a << bulletin if value.include?(tag.id.to_s)
+            objects.each do |object|
+              object.tags.each do |tag|
+                a << object if value.include?(tag.id.to_s)
               end
             end
             objects = a.uniq