i tried to add data to my database using domain classes .
i have oneToMany relationShip .. a cusomer could have one to many package.
and a Package belongTo a customer .
why i cant see any thing in DataBase with the flowing lines ?
Package p1 = new Package (packageId: '123456' , packetName:
new Customer(clientId: '10100380', country: 'DK', name: 'Nybolig
Ringsted', comment: '').addToPack(p1).save()