Trimming sessions in batches

Author: bartzon

lib/tasks/database.rake

@@ -16,6 +16,7 @@ namespace 'db:sessions' do
     cutoff_period = (ENV['SESSION_DAYS_TRIM_THRESHOLD'] || 30).to_i.days.ago
     ActiveRecord::SessionStore::Session.
       where("updated_at < ?", cutoff_period).
+      in_batches.
       delete_all
   end