RepositoryPropertyReferenceController doesn't use EntityLookupRegister to delete subresource [DATAREST-1400]

Jaime Mendes opened DATAREST-1400 and commented

When using entities with Custom Ids using the EntityLookupRegistrar, most operations are successful except when editing subresources by their specific id (in this case, the resource has a uuid while in the database is a long).

Example:

DELETE http://localhost:8080/parent/parent-uuid/child/child-uuid 

The RepositoryPropertyReferenceController tries to delete the subresource from the parent's collection by comparing each the custom id against prop.entity.getIdentifierAccessor(obj).getIdentifier(), which has the database id.

The issue seems similar to DATAREST-1304, where the fix was using a property lookup

I tried to override the behavior this controller to add this behavior but the class is not public.

Another way would be to edit prop.entity.getIdentifierAccessor(obj).getIdentifier() to obtain the correct id to compare, but Hibernate doesn't have an entry point for it.

Workarounds, if possible, are welcomed until the next release

Affects: 3.1.9 (Lovelace SR9)

Reference URL: https://github.com/spring-projects/spring-data-rest/blob/master/spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/RepositoryPropertyReferenceController.java#L358