I don't think any code exists for that. Following the guidance in this page I guess it had to be written for each new case.
Jacques
From: "BJ Freeman" <
[hidden email]>
> reading, again, the
>
http://docs.ofbiz.org/display/OFBTECH/General+Entity+Overview> it struck me that adding in a method that looks for the old_ entity a
> database could be converted or upgraded.
> by this I mean actually move data, if so required. This would require a
> sub element to the field that point to the new field, in the old_ entity.
> Forgive me if this is already done, I did not find in my search.
>