diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 34745709b..9e7ee0229 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -33,7 +33,7 @@ class UsersController < ApplicationController
   before_filter :require_admin, :except => [:show, :index, :search, :tag_save, :tag_saveEx,:user_projects, :user_newfeedback, :user_comments, :watch_bids, :watch_contests, :info,
     :user_watchlist, :user_fanslist,:update, :user_courses, :user_homeworks, :watch_projects, :show_score, :topic_score_index, :project_score_index,
     :activity_score_index, :influence_score_index, :score_index,:show_new_score, :topic_new_score_index, :project_new_score_index,
-    :activity_new_score_index, :influence_new_score_index, :score_new_index,:update_score]
+    :activity_new_score_index, :influence_new_score_index, :score_new_index,:update_score,:user_activities]
   #edit has been deleted by huang, 2013-9-23
   before_filter :find_user, :only => [:user_fanslist, :user_watchlist, :show, :edit, :update, :destroy, :edit_membership, :user_courses, 
                                   :user_homeworks, :destroy_membership, :user_activities, :user_projects, :user_newfeedback, :user_comments, 
diff --git a/db/schema.rb b/db/schema.rb
index fc169552e..05d24bf9b 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -809,18 +809,18 @@ ActiveRecord::Schema.define(:version => 20140721074353) do
   create_table "relative_memos", :force => true do |t|
     t.integer  "osp_id"
     t.integer  "parent_id"
-    t.string   "subject",                                                   :null => false
-    t.text     "content",            :limit => 16777215,                    :null => false
+    t.string   "subject",                               :null => false
+    t.text     "content",                               :null => false
     t.integer  "author_id"
-    t.integer  "replies_count",                          :default => 0
+    t.integer  "replies_count",      :default => 0
     t.integer  "last_reply_id"
-    t.boolean  "lock",                                   :default => false
-    t.boolean  "sticky",                                 :default => false
-    t.boolean  "is_quote",                               :default => false
-    t.datetime "created_at",                                                :null => false
-    t.datetime "updated_at",                                                :null => false
-    t.integer  "viewed_count_crawl",                     :default => 0
-    t.integer  "viewed_count_local",                     :default => 0
+    t.boolean  "lock",               :default => false
+    t.boolean  "sticky",             :default => false
+    t.boolean  "is_quote",           :default => false
+    t.datetime "created_at",                            :null => false
+    t.datetime "updated_at",                            :null => false
+    t.integer  "viewed_count_crawl", :default => 0
+    t.integer  "viewed_count_local", :default => 0
     t.string   "url"
     t.string   "username"
     t.string   "userhomeurl"
@@ -844,19 +844,6 @@ ActiveRecord::Schema.define(:version => 20140721074353) do
 
   add_index "repositories", ["project_id"], :name => "index_repositories_on_project_id"
 
-  create_table "rich_rich_files", :force => true do |t|
-    t.datetime "created_at",                                 :null => false
-    t.datetime "updated_at",                                 :null => false
-    t.string   "rich_file_file_name"
-    t.string   "rich_file_content_type"
-    t.integer  "rich_file_file_size"
-    t.datetime "rich_file_updated_at"
-    t.string   "owner_type"
-    t.integer  "owner_id"
-    t.text     "uri_cache"
-    t.string   "simplified_type",        :default => "file"
-  end
-
   create_table "roles", :force => true do |t|
     t.string  "name",              :limit => 30, :default => "",        :null => false
     t.integer "position",                        :default => 1