Method for Duty and the Job roles associated with a User.

Summary

Need a way to get the Duty and the Job roles associated with a User.

Content

We have a custom Job role which is copied form a standard job role.. There is a duty role associated with the job role. We need to get the details of all the job and the duty roles assigned to the user.

I have tried the REST API and it is able to get only the job role details. Looked through the ASE tables and the connect between the Job an duty role (or) between the duty role and the user but it was not possible.