user fanslist and watchlist support new version watcher

app/controllers/users_controller.rb

@@ -4178,7 +4178,8 @@ class UsersController < ApplicationController
 
   ###add by huang
   def user_watchlist
-    watch_query = User.watched_by(@user.id)
+    watch_query = User.joins('left join watchers on watchers.watchable_id = users.id and watchers.watchable_type in ("Principal", "User")')
+                    .where('watchers.user_id = ?', @user.id)
     @user_watchlist_count = watch_query.size
     @user_watchlist = watch_query.order("#{Watcher.table_name}.id desc")
     @limit = 10
@@ -4191,7 +4192,8 @@ class UsersController < ApplicationController
 
   ###add by huang
   def user_fanslist
-    fan_query = @user.watcher_users
+    fan_query = User.joins('left join watchers on watchers.user_id = users.id and watchers.watchable_type in ("Principal", "User")')
+                  .where('watchers.watchable_id = ?', @user.id)
     @user_fanlist_count = fan_query.size
     @user_fanlist = fan_query.order("#{Watcher.table_name}.id desc")