I personally go with Tomáš' approach as its really easy. :) The other approach, that may or may not be 'more' correct is to make a custom data squeezer that will transform your primary keys to objects and vice versa for form use.
For example, I made a CayenneDataSqueezer that could take any of my DataObjects and put them into the form with having to have the value persistent, and I could use it where ever I wanted and not have to worry about writing get/set methods every where. If you want some example code let me know. -Nick On 9/16/05, Dan Diephouse <[EMAIL PROTECTED]> wrote: > Thanks Patrick! Someone should put this in the FAQ :-) > > - Dan > > Patrick Casey wrote: > > Put a hidden text field at the *top* of your form so it rewinds > > first. Put the unique ID of your persistent object there. > > > > Bind that field do a property on your form. > > > > In that property's setter method, load your object. > > > > --- Pat > > > > > >>-----Original Message----- > >>From: news [mailto:[EMAIL PROTECTED] On Behalf Of Dan Diephouse > >>Sent: Friday, September 16, 2005 12:00 PM > >>To: [email protected] > >>Subject: Database Update Cycle > >> > >>Howdy, > >>I'm using T4 and a bit confused about how to create update screens. Let > >>me explain. I have a User class which I pull from the database. I have a > >>form which updates to properties (of many) on the User object: login and > >>password. > >> > >>When I first click on "edit user" I have a edit() function which > >>populates MyPage.user from the database. I have a save() method which > >>is triggered by a button on the edit form. When I click save() I want to > >>pull the User from the DB and then have the login/password fields > >>updated on that User object. But Tapestry always wants to create the > >>User object itself via ognl it seems. > >> > >>How can I get it from the DB on the update? > >> > >>Thanks, > >> > >>- Dan > >> > >> > >>--------------------------------------------------------------------- > >>To unsubscribe, e-mail: [EMAIL PROTECTED] > >>For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
