Backend/MailDomain: allow setting domain owner to public

src/controllers/MailboxBackendController.ts

@@ -128,7 +128,7 @@ export default class MailboxBackendController extends Controller {
             .first();
         if (!domain) throw new NotFoundHttpError('Domain', req.url);
 
-        domain.user_id = req.body.user_id;
+        domain.updateWithData(req.body);
         await domain.save();
 
         req.flash('success', `Domain ${domain.name} updated successfully.`);

src/models/MailDomain.ts

@@ -28,7 +28,8 @@ export default class MailDomain extends Model {
     }
 
     protected init(): void {
-        this.setValidation('name').defined().maxLength(252)
+        this.setValidation('name').acceptUndefined()
+            .maxLength(252)
             .regexp(/^[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)+$/)
             .unique(this);
         this.setValidation('user_id').acceptUndefined().exists(User, 'id');