two modules - one table

[alberto_gonzalez]

Hi,

I´m trying to develop two custom modules. First module where you fill de fields and the second module is a first module "view" with some new fileds

Let me explain
First module is "Offers Module" and it has all de fileds I need (offer number, item, price ...)
Second module" Invoice Module" has the first module fields, readonly, and a new field I need.
So when you create a new offer, in the Invoice module, you can select the offer and automatically appears the fileds you preaviosly fill in Offer Module

I create same fields in Offer and Invoice module, but I can´t show the data in Invoice fields.
I create a relatioship between them.

I tried to join Offer fields ands Invoice Fileds via custom code, but an error occur

Anybody can help me?

Thanks in advance

[andopes]

I believe the Invoice module will only make sense if your customer wants to go ahead with the negotiation, so you can add a button on Offer DetailView to convert it into an Invoice. So you can copy fields from Offer and fill in some others.

Cheers