Copy fields from association

I have a model Report, and a model ReportComponent. ReportComponent belongs to Report, and Report has_many components. Both tables have some commons fields such as organization_id, manager_id etc, and of course their own unique fields. There is no hard business reason for having these duplicate fields, but they help with join queries and DB performance.

The issue i have is that I would like for ReportComponent to automatically pull organization_id from Report on creation, and store that in its own field. Not the same as 'AR#delegate' as this would copy and write the field.

Best idea i have right now is to override the organization= method, but that is not foolproof. Is there a native rails method for this?

Thanks,

Don't repeat the fields, that is not good. Can you explain why you need them? There will almost certainly be a better way.

Colin

Colin Law wrote in post #1097732: