I have created a custom model and to sum up my case, lets say I have two types of documents:
Invoices and Proofs of Payment..
I have an association between them, but the matter is that I can have:
One Proof of payment that includes parcial payments of several invoices.
For that reason I'd need to specify the porcentage payed for each association I specify between the proof and the invoices.
what I pretend is that everytime a user set an association with an invoice, a field (relative to the assoc.) might be filled with the %.
Could anyone help me with it or give different ideas to have what i need?
Thans in advance,
Teresa