tombstone logic

packages/bookshop/srv/admin-service.js

@@ -45,9 +45,15 @@ module.exports = cds.service.impl(async () => {
     if (replicas.length === 0) return //> not affected
 
     // fetch changed data from S/4 -> might be less than local due to deletes
-    const changed = (await SELECT.from(externalAddresses).where({
+    const externals = await SELECT.from(externalAddresses).where({
       contact
-    })).filter(({ ID }) => replicas.some(rep => ID === rep.ID))
+    })
+
+    const changed = replicas.map(rep => {
+      const ext = externals.find(ext => ext.ID === rep.ID)
+      if (ext) return ext
+      return { ...rep, ...{ tombstone: true } }
+    })
 
     // update local replicas with changes from S/4
     const local = db.transaction(msg) //> using that variant to benefit from bulk runs