namespace :db do
  namespace :purge do
    desc "Purge expired sessions from the database"
    task :sessions => :environment do
      CGI::Session::ActiveRecordStore::Session.
        destroy_all( ['updated_at <?', 2.hours.ago] ) 
    end
    
    desc "Purge expired PilotBriefings from the database"
    
    task :pilot_briefings => :environment do
      PilotBriefing.purge
    end
    
    desc "Deactivates (doesn't delete) non-admin, expired accounts"
    task :users => :environment do
      User.deactivate_expired_accounts!
    end
  end
end