Hi,
I wasn't the one with the problem, and I'm not sure that Levi ever
said what was specifically wrong.
Post the specifics of your problem in a separate thread and I'm sure
someone will be able to help.
Josh
On Thu, Oct 22, 2009 at 6:23 AM, superslip103 <rohit.triv...@db.com> wrote:
>
> Hi Josh
> What was your encoding issue? I'm having the same issue here with a
> SelectBox Encoder.
>
> Ro
>
>
> xfile80303 wrote:
>>
>>
>> Thanks Josh!
>>
>> You helped me identify that it was an encoder issue on my end.
>>
>> I appreciate your help. :)
>>
>> Cheers,
>>
>> Levi
>>
>>
>> Josh Canfield wrote:
>>>
>>> The only change I made was making isValid into a property and a
>>> checkbox in the form so I could switch between behaviors.
>>>
>>> Here is the complete code that works for me.
>>>
>>> public class Index {
>>> @Component
>>> private Zone nothingSelectedZone;
>>>
>>> @Component
>>> private Form _parts;
>>>
>>> @Property
>>> private boolean errorVisible;
>>>
>>> @Property
>>> private boolean resultsVisible = true;
>>>
>>> @Property
>>> private boolean _valid;
>>>
>>> @InjectPage
>>> private LoopedForm otherPage; // a random page I have in my
>>> experiments project.
>>>
>>> void onValidateFormFromParts() {
>>> if (_valid) {
>>> _parts.recordError("No items selected.");
>>> } else {
>>> resultsVisible = true;
>>> _parts.clearErrors();
>>> }
>>> errorVisible = _parts.getHasErrors();
>>> }
>>>
>>> Object onSuccessFromParts() {
>>> return otherPage;
>>> }
>>>
>>> Object onFailureFromParts() {
>>> return nothingSelectedZone.getBody();
>>> }
>>> }
>>>
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> <!DOCTYPE html
>>> PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
>>> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd";>
>>>
>>> <html xmlns:t="http://tapestry.apache.org/schema/tapestry_5_0_0.xsd";
>>> xmlns="http://www.w3.org/1999/xhtml";
>>> xml:lang="en"
>>> lang="en">
>>> <head>
>>> <title>Experiment Home</title>
>>> </head>
>>> <body>
>>>
>>> <t:zone t:id="nothingSelectedZone" id="nothingSelectedZone"
>>> visible="${errorVisible}">
>>> No items have been selected.
>>> </t:zone>
>>> <t:zone t:id="resultsZone" id="resultsZone" visible="${resultsVisible}">
>>> <form t:id="parts" t:zone="nothingSelectedZone">
>>> <t:checkbox value="valid"/>
>>> <input type="button" t:type="submit" value="Do It"/>
>>> </form>
>>> </t:zone>
>>>
>>> </body>
>>> </html>
>>>
>>> On Fri, Oct 2, 2009 at 6:03 PM, xfile80303 <l...@grokers.net> wrote:
>>>>
>>>> Hi Josh,
>>>>
>>>> Thanks for looking.
>>>>
>>>> I'm afraid the stack trace I provided is a red herring and does not have
>>>> any
>>>> bearing on the situation. It comes from the fact that my encoder was
>>>> getting purged from the session due to it being set as FLASH only. And
>>>> this
>>>> exception actually only happens after I changed the code from:
>>>>
>>>> <form t:id="parts" t:zone="nothingSelectedZone">
>>>> to
>>>> <form t:id="parts" t:zone="resultsZone">
>>>>
>>>> which actually works... it's as if something in the form needs to be
>>>> rebuilt
>>>> after the submit.
>>>>
>>>> You say you were able to get my code to work? As is, or did you need to
>>>> make
>>>> changes? I'd still like to have the flexibility to refresh the
>>>> nothingSelectedZone and not touch the resultsZone.
>>>>
>>>> Cheers,
>>>>
>>>> Levi
>>>>
>>>>
>>>> Josh Canfield wrote:
>>>>>
>>>>> Your example code works fine and the exception you provide makes it
>>>>> look like you're in a loop?
>>>>>
>>>>>> Caused by: java.lang.NullPointerException
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Loop.restoreStateFromStoredClientValue(Loop.java:457)
>>>>>
>>>>> That line from the code:
>>>>> // We assume that if an encoder is available when we rendered,
>>>>> that one will be available
>>>>> // when the form is submitted.
>>>>> Object restoredValue = encoder.toValue(clientValue);
>>>>>
>>>>> Makes me think that you aren't getting an encoder?
>>>>>
>>>>> Can you provide a simple and complete example that breaks?
>>>>> Josh
>>>>>
>>>>> On Fri, Oct 2, 2009 at 4:50 PM, xfile80303 <l...@grokers.net> wrote:
>>>>>>
>>>>>> Okay, I have some more information...
>>>>>>
>>>>>> When I click on the submit button, after the validation error, I see
>>>>>> this
>>>>>> in
>>>>>> the log:
>>>>>>
>>>>>> ERROR [http-8080-5: RequestExceptionHandler]: Processing of request
>>>>>> failed
>>>>>> with uncaught exception:
>>>>>> org.apache.tapestry5.runtime.ComponentEventException
>>>>>> org.apache.tapestry5.runtime.ComponentEventException [at
>>>>>> classpath:com/java/dse/cwp/eos/pages/Search.tml, line 106]
>>>>>> at
>>>>>> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1098)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.AjaxComponentEventRequestHandler.handle(AjaxComponentEventRequestHandler.java:107)
>>>>>> at
>>>>>> $ComponentEventRequestHandler_12417a4b929.handle($ComponentEventRequestHandler_12417a4b929.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
>>>>>> at
>>>>>> $ComponentEventRequestHandler_12417a4b92b.handle($ComponentEventRequestHandler_12417a4b92b.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$36.handle(TapestryModule.java:2164)
>>>>>> at
>>>>>> $ComponentEventRequestHandler_12417a4b92b.handle($ComponentEventRequestHandler_12417a4b92b.java)
>>>>>> at
>>>>>> $ComponentEventRequestHandler_12417a4b911.handle($ComponentEventRequestHandler_12417a4b911.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
>>>>>> at
>>>>>> $ComponentRequestHandler_12417a4b80d.handleComponentEvent($ComponentRequestHandler_12417a4b80d.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
>>>>>> at
>>>>>> $Dispatcher_12417a4b819.dispatch($Dispatcher_12417a4b819.java)
>>>>>> at
>>>>>> $Dispatcher_12417a4b80a.dispatch($Dispatcher_12417a4b80a.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:245)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$4.service(TapestryModule.java:778)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:767)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:85)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> com.java.dse.cwp.eos.services.EosModule$1.service(EosModule.java:254)
>>>>>> at
>>>>>> $RequestFilter_12417a4b806.service($RequestFilter_12417a4b806.java)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:90)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:81)
>>>>>> at
>>>>>> org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:103)
>>>>>> at
>>>>>> $RequestHandler_12417a4b80b.service($RequestHandler_12417a4b80b.java)
>>>>>> at
>>>>>> $RequestHandler_12417a4b800.service($RequestHandler_12417a4b800.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:197)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
>>>>>> at
>>>>>> $HttpServletRequestHandler_12417a4b802.service($HttpServletRequestHandler_12417a4b802.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
>>>>>> at
>>>>>> $HttpServletRequestFilter_12417a4b7ff.service($HttpServletRequestFilter_12417a4b7ff.java)
>>>>>> at
>>>>>> $HttpServletRequestHandler_12417a4b802.service($HttpServletRequestHandler_12417a4b802.java)
>>>>>> at
>>>>>> org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:726)
>>>>>> at
>>>>>> $HttpServletRequestHandler_12417a4b802.service($HttpServletRequestHandler_12417a4b802.java)
>>>>>> at
>>>>>> $HttpServletRequestHandler_12417a4b7fd.service($HttpServletRequestHandler_12417a4b7fd.java)
>>>>>> at
>>>>>> org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:127)
>>>>>> at
>>>>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>>>>>> at
>>>>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>>>>>> at
>>>>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
>>>>>> at
>>>>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
>>>>>> at
>>>>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
>>>>>> at
>>>>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>>>>>> at
>>>>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>>>>>> at
>>>>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
>>>>>> at
>>>>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
>>>>>> at
>>>>>> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
>>>>>> at
>>>>>> org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
>>>>>> at java.lang.Thread.run(Thread.java:637)
>>>>>> Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException
>>>>>> [at
>>>>>> classpath:com/java/dse/cwp/eos/pages/Search.tml, line 130]
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:495)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form._$advised$onAction(Form.java:378)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form$onAction$invocation_12417a50156.invokeAdvisedMethod(Form$onAction$invocation_12417a50156.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:71)
>>>>>> at
>>>>>> org.apache.tapestry5.ioc.internal.services.LoggingAdvice.advise(LoggingAdvice.java:37)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.transform.LogWorker$1.advise(LogWorker.java:54)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.services.AbstractComponentMethodInvocation.proceed(AbstractComponentMethodInvocation.java:80)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form.onAction(Form.java)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form.dispatchComponentEvent(Form.java)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:910)
>>>>>> at
>>>>>> org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1081)
>>>>>> ... 52 more
>>>>>> Caused by: java.lang.NullPointerException
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Loop.restoreStateFromStoredClientValue(Loop.java:457)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Loop.access$500(Loop.java:44)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:165)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Loop$RestoreStateFromStoredClientValue.execute(Loop.java:154)
>>>>>> at
>>>>>> org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:480)
>>>>>> ... 62 more
>>>>>>
>>>>>>
>>>>>> I would really appreciate some help understanding why this is broken.
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Levi
>>>>>>
>>>>>>
>>>>>> xfile80303 wrote:
>>>>>>>
>>>>>>> Hello all,
>>>>>>>
>>>>>>> I'm seing some interesting behavior I hope you can help me sort out.
>>>>>>>
>>>>>>> I have a form which I would like to display an error message (custom)
>>>>>>> should the form validation fail. I'd like to do this via AJAX since
>>>>>>> the
>>>>>>> contents of the form are created via AJAX and refreshing the page to
>>>>>>> display this error message will lose this context.
>>>>>>>
>>>>>>> So, I have something like this:
>>>>>>>
>>>>>>> <t:zone t:id="nothingSelectedZone" id="nothingSelectedZone"
>>>>>>> visible="${errorVisible}">
>>>>>>> No items have been selected.
>>>>>>> </t:zone>
>>>>>>>
>>>>>>> <t:zone t:id="resultsZone" id="resultsZone"
>>>>>>> visible="${resultsVisible}">
>>>>>>> <form t:id="parts" t:zone="nothingSelectedZone">
>>>>>>> <input type="button" t:type="submit" value="Do It"/>
>>>>>>> </form>
>>>>>>> </t:zone>
>>>>>>>
>>>>>>> void onValidateFormFromParts()
>>>>>>> {
>>>>>>> if (isValid())
>>>>>>> {
>>>>>>> _parts.recordError("No items selected.");
>>>>>>> }
>>>>>>> else
>>>>>>> {
>>>>>>> _parts.clearErrors();
>>>>>>> }
>>>>>>> errorVisible = _parts.getHasErrors();
>>>>>>> }
>>>>>>>
>>>>>>> Object onSuccessFromParts()
>>>>>>> {
>>>>>>> return otherPage;
>>>>>>> }
>>>>>>>
>>>>>>> Object onFailureFromParts()
>>>>>>> {
>>>>>>> return nothingSelectedZone.getBody();
>>>>>>> }
>>>>>>>
>>>>>>> If there's no error with validation, the success method gets called
>>>>>>> fine,
>>>>>>> and I am redirected to the otherPage.
>>>>>>> If there is an error with validation, the nothingSelectedZone is
>>>>>>> updated
>>>>>>> and the error message is displayed.
>>>>>>> However, if, after a validation error I try to re-submit the form,
>>>>>>> nothing
>>>>>>> happens at all. I've put breakpoints in my debugger on these three
>>>>>>> methods and they don't get hit in this case. It's as if the form
>>>>>>> submit
>>>>>>> is not taking place after the initial validation error.
>>>>>>>
>>>>>>> I'd love some input.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Levi
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> View this message in context:
>>>>>> http://n2.nabble.com/T5-1-AJAX-Form-Validation-tp3753039p3758403.html
>>>>>> Sent from the Tapestry Users mailing list archive at Nabble.com.
>>>>>>
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>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
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>>>>>
>>>>>
>>>>
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>>>>
>>>
>>>
>>>
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