Based on the topic description, I can't help but feel I'm already 
overcomplicating this...

I have 3 models:

   - Audit
   - LeadAuditor
   - Action

The Audit model links to Lead_Auditor so each Audit instance has a single 
Audit.lead_auditor:

*lead_auditor = models.ForeignKey('LeadAuditor', on_delete=models.SET_NULL, 
null=True)*
The Action model links to Audit so each Action instance has a single 
Action.audit_ref:

*audit_ref = models.ForeignKey('Audit', on_delete=models.SET_NULL, 
null=True)*
That all works fine but I want to include a field in Action which shows the 
lead_auditor based on the audit_reference and I'm not sure how best to do 
that (still in the early stages of learning).

Ideally, I would like the Action model to contain an @property field which 
equates to (Audit.lead_auditor wherever Action.audit_ref is matched) 

I'm going round in circles adding complexity that doesn't work anyway.  Any 
pointers would be much appreciated.

Thanks

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