I guess that sounds reasonable. I have some ideas about improving how the form detects stale links that should make debugging this kind of problem easier. Currenty, forms encode in a hidden field the overall count of forms fields during the render ... I expect to change that to a list of form element names vended out (so that the Form can detect exactly when things go astray).
I believe there's a method on AbstractEngine, handleStaleLinkException() that you can override ... if you change it to invoke activateExceptionPage() you should get what you need. -- [EMAIL PROTECTED] http://tapestry.sf.net > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > I think I have it figured out. > The form was basically OK - except that on the FIRST render, the 'anyMatching' > was null, therefore false - so only a single component was being rendered and > recorded, via the <input type="hidden" name="Form0" value="1"/> > > On the rewind, the 'currently selected' category was being set, which meant > that the second render DID include a second component. Because the count was > out, I think Form.renderComponent() was throwing a StaleLink exception. > > Is there any way to propagate th exception dump to the stale link page? It > would have helped me discovering this problem immensely (I would have known > immediately what was kind of wrong, rather than having to make educated > guesses). > > For my peace of mind, does my own diagnosis of the problem sound about right? > > Neil > > > On Friday 11 Oct 2002 11:26 am, Neil Clayton wrote: > > I've been attempting to create a page that allows for the selection of > > "content", based simply on a single category name ("content" in this case > > has a category, and what I want to do is show any "content" matching that > > category). > > > > The page itself contains a single component, called the ContentSelector. > > The selector takes an input parameter, being a Collection of strings. It > > uses this to produce a IPropertySelectionModel implementation, similar to > > that of the StringPropertySelection, and then renders this as a drop down > > using the PropertySelection component. > > > .... cut ... > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.0.7 (GNU/Linux) > > iD8DBQE9ptdlLXcfQF3yrNoRAipxAJ9WWK0AfBp9xtspYiAtPH3RSLDL5gCeL2Q5 > 9cWaDowm9XJ6undT0bXFlUI= > =UGVj > -----END PGP SIGNATURE----- > > > > ------------------------------------------------------- > This sf.net email is sponsored by:ThinkGeek > Welcome to geek heaven. > http://thinkgeek.com/sf > _______________________________________________ > Tapestry-developer mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/tapestry-developer ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf _______________________________________________ Tapestry-developer mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/tapestry-developer
