Entity class implements HasUuid but its instance has no UUID assigned

Support
#1

Hey all,

I have ran into an issue with my edit screen. It is a screen that contains a browse view from another entity. These entities have a one to many relationship.

The issue I am getting is "IllegalStateException: Entity class com.company.machineonderhoud.entity.Onderhoudsregel implements HasUuid but its instance has no UUID assigned"

I know the reason for this issue. It is because when I create the parent entity and add rows to the child entity, the rows to the child entity cannot find the UUID of the parent entity, because the parenty entity has not been saved yet, and has not yet gotten the UUID assigned.

Are there any workaround for this? I am trying to get this application as user friendly as possible and it would save some time not having to save the parent entity, have the edit screen close, and then open it again to add rows.

Thanks in advance already!

Kind regards,
Tim Quist

#2

Hi,

I suppose that you’re creating entities using a constructor. The preferred way to create an entity is to use metadata.create(SomeEntity.class); (Pay attention that you need to inject the Metadata bean). In this case the ID is assigned automatically.

Regards,
Gleb

#3

Thank you! It solved the issue.