Unknown record property / related component "
alias : group foreign : id local : registration_group_id class : RegistrationGroup type : 0 table : Object(Doctrine_Table) localTable : Object(Doctrine_Table) name : refTable : onDelete : onUpdate : deferred : deferrable : constraint : equal : cascade : Array owningSide : refClassRelationAlias : foreignKeyName : orderBy :" on "Registration"