mysql transactions

I began to write an application.
I store a variety of information to 2-3 tables which is collected from 6 pages.
when i pressed save button on 6. page, i want all data to be recorded in to the database.
How can i use mysql transaction for this with WA dataassist?

Use "persistent forms" to store all of the data from the 6 pages and then do the data recording all at once on the last page using the stored values.

You can't use mysqli transactions across multiple pages in general, and you can't use transactions in general without hand coding, but this technique should be a good enough equivalent.

is it possible to add persistent form functionalty to existing forms? or i must re-create all forms with form wizard?

You can use the existing forms, just add the "persistent form" server behavior to the action page of each form and they will be stored.

i cant find "persistent form" server behavior. where is it?

In the server behaviors panel under "Webassist->Persistence"

ok. little time has passed. i found persistence and i used it. i collected datas from several pages. how can i use transaction now? i must insert data in to 6 tables.

You are going to have to hand code to pull it off... you will have to combine the 6 queries into one object (the code creates a new object for each by default)... then you will have to turn off autocommit and manually commit after executing all 6.

If you get it working without transactions and attach the page I can give more advice on how to make it transactional.

thanks for your reply. I was undecided to use da or pure php mysql code or any other db class?

If you need transactions then you will have to use MySQLi. The webassist server behaviors will get you most of the way there without transactions and then adding the transactions shouldn't be too difficult from there. DA uses traditional MySQL which doesn't support transactions.