SAP Application Programming Model for SCP - Draft concept

[#1]

Hi,

The generic handlers in the APM for SCP apparently support the draft concept: https://help.sap.com/viewer/65de2977205c403bbc107264b8eccf4b/Cloud/en-US/00823f91779d4d42aa29a498e05...

However I can't find any ressource on how to use this feature. I just looked at the code of the cds npm modules and found out that I need to add the following annotation to enable drafts for an entity:

@odata.draft.enabled: true

I tried to add this annotation to enable drafts for a very simple Todo entity. With CDS 2.10 I get the following error when I try to access the service:

Service not available: TodoService.

Switching to CDS 3.0, things are a bit better and I can see that the framework created some new tables for draft support:

DRAFT_DRAFTADMINISTRATIVEDATA
TODOSERVICE_TODOS_DRAFTS
TODO_TODOS

However when I try to GET the data, I get the following error:

<error xmlns="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata">
<code>CDSRuntimeException.INTERNAL_ERROR</code>
<message xml:lang="en-US">Internal Error Occured</message>
</error>

And I can see some exceptions in the logs and I don't really know what to do next:

"com.sap.db.jdbc.exceptions.JDBCDriverException: SAP DBTech JDBC: [257] (at 115): sql syntax error: CDS error: Sub artifact \"ISACTIVEENTITY\" not found in \"ROOT_ENTITY_ALIAS\": line 1 col 116 (at pos 115)"

Does anyone know how to enable draft support for APM for SCP?

Note: I'm using Java with the HANA Service (2.0 SPS 04) in the Web IDE Full-Stack.

Cheers,

Pierre

[former_member194104 · Accepted solution]

Hi Pierre,

We are working on OData v2 draft. It should be available by the middle of March.

Regards

Suresh