my problem is that i have three consecutive forms: when i click the submit button of the first one, i insert in the database and then redirect to the second form, and the same with the second and third. But the three insertions must be completed if i want to have a database not corrupted. If the user stops in the second form, for example by closing the navigator, the previous insertion must be undone.
I thought two solutions, the first one is using hidden inputs and insert all in the last step, but i don´t like very much this solution. The other one is using transactions, but i don't know how to manage them.
Anyone could help me with a suggestion or a link?
Zope 2.4.2 ZPsycopgDA 1.0 PostgreSQL 7.1.3
you could also consider using a transient or volatile (temporary as opposed to persistent) object, a ZClass for instance, for this purpose: give it the properties that correspond to the values you want to enter. It will stay in memory, but is not stored in the ZODB. After the transaction is completed, write to the database and delete the object. Another possibilty is to use sessions for this and store the values into session variables. hth Rik