Mocking entities with @cds.persistence.exists?

[agiguere]

We are a big consumer of facade entities (using the annotation @cds.persistence.exists)

those entities are replicated from the ERP backend with SDI into another HDI container and reference with synonym

however using CDS watch (using dev profile), there is no way to mock those entities

are we missing something?

thanks

[vl-leon]

Hi,

One possibility is to overwrite @cds.persistence.exists flag and set it to false for local development using profiles.
An example how to add database-specific artifacts with profiles can be found here.
Your package.json will be looking like this:

 "cds": {
    "requires": {
      "db": {
        "[development]": {
          "model": "db/sqlite"
        }
      }
    }
  },

This configuration can be stored in a .cdsrc.yaml/json file too.

Add a new cds file in directory db/sqlite and overwrite @cds.persistence.exists

annotate bookshop.Books with @cds.persistence.exists:false;

As a result when starting the service with cds watch, the development profile will be activated, which references the newly created file with the annotation.