How can I return a draft Entity using CAP Node.JS?

[gregorw]

Hello CAP Friends,

the SAPUI5 documentation at Configuring Custom Actions that Create New Objects describes this behaviour of the UI:

"If a user triggers the action, note the following behavior in a draft application: if the back-end system returns a draft object as the result of the action, the front-end system automatically navigates to the object page where the new draft object is opened in edit mode."

This is exactly the behaviour I want to achieve. I've implemented an example in my bookshop-demo which can be tested via: http://localhost:4004/webapp/fiori-latest.html#V4Role-manageUI5latest. When you click there the action button "createDraftRole" you will be asked to enter the role name and description. When you then click the createDraftRole button of the pop-up the Entity is created using this code:

srv.on(["createDraftRole"], async (req) => {
  const adminService = await cds.connect.to("AdminService");
  const { Roles } = adminService.entities;
  console.log("createDraftRole - Request Parameters:", req.data);
  const insertRes = await cds.run(
    INSERT.into(Roles).entries([
      {
        ID: cds.utils.uuid(),
        rolename: req.data.rolename,
        description: req.data.description,
      },
    ])
  );
  const keyFields = [...insertRes][0];
  delete keyFields.IsActiveEntity;
  const roles = await cds.run(SELECT.from(Roles).where(keyFields));
  const role = roles[0];
  return role;
});

The UI navigates also the the created entity. But unfortuantely not in Edit mode. That due to the fact that I haven't found any documentation how to create a draft Entity in the CAP Node.JS documentation about Built-in Draft Support. It seems that for CAP Java this is already possible: Consuming Draft Services.

Would be great to know what is planned in this direction.

Best Regards
Gregor

[sergei-u-niq]

Thanks gregorw !