> If you find an error during the validate() and fordward to the action, the > validate() method will be called again before the execution of the > perform(), because the action will try to validate the form is receiving, > and you'll be in a loop. > I 'm experiencing that problem. > I appreciate if you could help me. > > > Re: Validation of errors and re-population of request > > * From: Bill Clinton > * Subject: Re: Validation of errors and re-population of request > * Date: Fri, 03 Aug 2001 21:37:20 -0700 > > Tim, > I'm not sure this will work for you, but if it does, it may be the > easiest solution. I am assuming that you have a "failure" forward in > the Delete action that sends the user back to the list page. Instead of > mapping this forward to the list page, map it to the list action. That > way, the action errors (or non-struts error message) that you save in > the request object will still be there, and it will pick up the vector > in the list action before it dispatches to the list page. > > Bill > > Tim Trentham wrote: > > > I'm wondering if there is a "best practice" or standard Struts way of > > handling repopulation of request attributes needed for a page after an > > error. > > > > For instance, I have a list of contacts with a checkbox next to each > one. > > The list is generated by the logic:iterate and multibox tags using a > vector > > that is placed in the request by the action that forwards to the page > that > > displays the list. The user can select contacts from the list and delete > > them. > > > > If the user clicks the delete button and there are no users checked, my > > validate method throws them back to the page telling them that they need > to > > pick something. Of course, the vector is no longer in the request for > > display, so you see the error message, but no users. > > > > I did find a two things in past posts, but nothing really promising... > > > > 1) > > repopulation occurs in the reset method > > > <http://www.mail-archive.com/[email protected]/msg05423.html> > > > > but this means that you are re-populating the request with the dropdown > list > > even if there aren't any errors, which seems like a waste of resources. > > also, you still have to populate the first time from somewhere else as > the > > forms reset() method isn't called until after the first time the page is > > displayed. > > > > 2) > > repopulation occurs in validate method > > > <http://www.mail-archive.com/[email protected]/msg11305.html> > > > > this is what i'm looking at doing, but once again, i have to do it in > two > > places: the original action that generates the list in the jsp page and > then > > in the validate method of the form if there is an error. > > > > I also have the additional problem of keeping track of which vector to > > re-generate. I display the contacts in blocks of 25, so if you are on > the > > second block of 25 and you click delete with no contacts checked, I need > to > > know that I need to re-generate the second block and not the first. > > > > I'm wondering if others have come up with a good way of handling this > before > > I go off and reinvent the wheel. > > > > Thanks. > > > > Tim > > > > -------------------------------- > > Tim Trentham > > Platform Development > > @hand Corporation > > [EMAIL PROTECTED] > > > > > > Oscar Guindzberg > EDS - Interbanking > Arias 1851 > Capital Federal (1429) > > * 4704-3527 > * [EMAIL PROTECTED] > >
-- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
