1.Remove category column when category is specified

2.Showing category if not in category browsing
3.Redirect to home and show error if app page is not available for user language
4.Showing no context to display if object has no language for it.
5.Browse new and announcement by unit is now applicable.

app/models/item.rb

@@ -23,7 +23,10 @@ class Item
   before_destroy :destroy_children
   after_rearrange :rebuild_path, :if => "parent_id_changed? || name_changed?"
   
-  
+  def enabled_for_lang(lang)
+    enabled_for.include?(lang)
+  end
+
   def self.find_by_name(item_name)
     Item.first(:conditions => { :name => item_name, :is_published => true })
   end

app/models/page.rb

@@ -6,8 +6,8 @@ class Page < Item
   field :content
   field :app_frontend_url
   field :theme_id, :type => BSON::ObjectId, :default => nil
-  field :category
-  field :tag
+  field :category, :default => ''
+  field :tag, :default => ''
   field :view_count, :type => Integer, :default => 0
   field :page_title, localize: true
   

app/models/user/user.rb

@@ -31,12 +31,7 @@ class User
 
     VALID_LOCALES.each  do |loc|
       locale = loc.to_sym
-          # debugger
-      # if(self.cache_dept.nil?)
-      #   self.build_cache_dept key: "dept_cache_user_#{self.id}"
-      # end
       dept_hash[locale] = sub_roles.collect{|sr| sr.title}.join(',')
-      # self.cache_dept[locale] = sub_roles.collect{|sr| sr.title}.join(',')
     end
     self.cache_dept = dept_hash
     self.save!