update users last_logged_in_at more frequently, disable tag subscription processing for users who have been inactive for more than one year

app/logical/session_loader.rb

@@ -19,7 +19,8 @@ class SessionLoader
     else
       CurrentUser.user = AnonymousUser.new
     end
-
+    
+    update_last_logged_in_at
     set_time_zone
   end
 
@@ -43,6 +44,12 @@ private
     cookies[:cookie_password_hash] && User.authenticate_cookie_hash(cookies[:user_name], cookies[:cookie_password_hash])
   end
   
+  def update_last_logged_in_at
+    return if CurrentUser.is_anonymous?
+    return if CurrentUser.last_logged_in_at && CurrentUser.last_logged_in_at > 1.week.ago
+    CurrentUser.user.update_attribute(:last_logged_in_at, Time.now)
+  end
+  
   def set_time_zone
     Time.zone = CurrentUser.user.time_zone
   end

app/models/tag_subscription.rb

@@ -34,6 +34,10 @@ class TagSubscription < ActiveRecord::Base
     self.post_ids = post_ids.sort.reverse.slice(0, Danbooru.config.tag_subscription_post_limit).join(",")
   end
   
+  def is_active?
+    creator.last_logged_in_at && creator.last_logged_in_at > 1.year.ago
+  end
+  
   def editable_by?(user)
     user.is_moderator? || creator_id == user.id
   end
@@ -86,7 +90,7 @@ class TagSubscription < ActiveRecord::Base
 
   def self.process_all
     find_each do |tag_subscription|
-      if $job_task_daemon_active != false && tag_subscription.creator.is_privileged?
+      if $job_task_daemon_active != false && tag_subscription.creator.is_privileged? && tag_subscription.is_active?
         begin
           tag_subscription.process
           tag_subscription.save