Indempotency goal hard to reach, can this be done with dict, lists, nested lists?

[Marko Lisica]

Hi I came into a problem while I was trying  to make this role work.

- name: add db
  mysql_db: name={{ item.user }} state=present
  with_items: users

- name: add user
  mysql_user: name={{ item.user }} host=localhost password={{ mysql_pass }}
      state=present priv={{ item.db }}.*:ALL
  with_items: users

How can I create variable list so I can have multiple databases for single user and setup db permissions on coresponding databases for specific user?

eg.

---
users:
  - user: user1
    db:
      - db1
      - db11
  - user: user2
    db:
      - db2
  - user: user3
    db:
      - db3
      - db33
      - db333