40 <component id="appName" type="ValidField"> 41 <binding name="value" expression="appInfo.name"/> 42 <binding name="validator" expression="beans.reqValidator"/> 43 <static-binding name="displayName" value="Application Name"/> 44 </component>
Thanks again for the help On 7/15/05, Dan <[EMAIL PROTECTED]> wrote: > and wat is line 41 in ur spec ? > > >From: Chris Chiappone <[EMAIL PROTECTED]> > >Reply-To: Chris Chiappone <[EMAIL PROTECTED]> > >To: Tapestry users <[email protected]> > >Subject: Re: Confused with pageBeginRender and Form submission > >Date: Fri, 15 Jul 2005 20:49:26 +0000 > > > >Thanks for the quick responses. The two responses I got were > >basically the same so I tried it. The problem is now I get: > > > >binding: ExpressionBinding[EditApp appInfo.name] > >location: context:/WEB-INF/EditApp.page, line 41, column 58 > > > >ognl.OgnlException > >source is null for getProperty(null, "name") > > > >So I am still a bit stuck on what I should do. > > > >On 7/15/05, Danny Mandel <[EMAIL PROTECTED]> wrote: > > > In your pageBeginRender method you can check to see if the form is > > > rewinding. If it is, you probably don't want to initialize things in > > > there i.e.: > > > > > > public void pageBeginRender(PageEvent event) { > > > if (!event.getRequestCycle().isRewinding()) { > > > // do your normal initialization stuff and create if null > > > } > > > } > > > > > > In the case where it is rewinding, then you'll want to move your object > > > retrieval/restoration to a different place. This can be done by binding > > > your object's id to a hidden field that will fetch it or by use of a > > > data squeezer. This has been addressed many times on this list so it > > > should be in the archives and I know that there is a wiki page on using > > > a data squeezer to do this sort of thing: > > > > > > http://wiki.apache.org/jakarta-tapestry/DataSqueezer > > > > > > Hope that helps, > > > Danny > > > > > > Chris Chiappone wrote: > > > > > > >I am a bit confused about how pageBeginRender works during a form > > > >submission Here is the code i have: > > > > > > > > public void pageBeginRender(PageEvent event) { > > > > // initialize app > > > > retrieveApp(getAppVerId()); > > > > } > > > > > > > > private void retrieveApp(Long id){ > > > > if(id != null){ > > > > System.out.println("Updating App: "+ id); > > > > AppDAO dao = new AppDAO(); > > > > AppVer ver = null; > > > > AppInfo info = null; > > > > ver = dao.getAppVerId(id, false); > > > > info = ver.getAppInfo(); > > > > setAppInfo(info); > > > > setAppVer(ver); > > > > } > > > > if(getAppInfo() == null){ > > > > System.out.println("Creating a new > >application"); > > > > setAppInfo(new AppInfo()); > > > > setAppVer(new AppVer()); > > > > getAppVer().setRegdate(new Date()); > > > > } > > > > } > > > > > > > > /** > > > > * Action taken when this form has been submitted > > > > * > > > > * @param cycle > > > > */ > > > > public void formSubmit(IRequestCycle cycle){ > > > > System.out.println("Current VerId = "+ getAppVerId()); > > > > // Check to see all validation was a success > > > > ValidationDelegate delegate = > > > >(ValidationDelegate)getBeans().getBean("delegate"); > > > > > > > > if(!delegate.getHasErrors()){ > > > > // Insert the new version > > > > AppDAO dao = new AppDAO(); > > > > AppInfo info = getAppInfo(); > > > > AppVer ver = getAppVer(); > > > > > > > >.... > > > > > > > >Basically I need to initialize the AppInfo and AppVer objects when the > > > >page is rendered. The page is an add/edit form. If appVerId is not > > > >null I lookup AppInfo and AppVer to populate my form for editing, if > > > >null create new objects. This seems to work fine. THe problem I am > > > >having is that when I submit the form It create a new AppVer and > > > >AppInfo because appVerId appears to be null in pageBeginRender(Event) > > > >but when it continues to formSubmit my print is showing the the > > > >appVerId != null which is what I expect. The problem is the objects > > > >have been intialized as new so it ends up creating duplicates. Hope I > > > >made this clear. > > > > > > > > > > > > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > >-- > >~chris > > > >--------------------------------------------------------------------- > >To unsubscribe, e-mail: [EMAIL PROTECTED] > >For additional commands, e-mail: [EMAIL PROTECTED] > > > > _________________________________________________________________ > Don't just search. Find. Check out the new MSN Search! > http://search.msn.click-url.com/go/onm00200636ave/direct/01/ > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- ~chris --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
