+ },
+ periodic_invoices_config => {
+ type => 'one to one',
+ class => 'SL::DB::PeriodicInvoicesConfig',
+ column_map => { id => 'oe_id' },
+ },
+ periodic_invoices => {
+ type => 'one to many',
+ class => 'SL::DB::PeriodicInvoice',
+ column_map => { id => 'oe_id' },
+ },