This is a bit of a delayed response, but I've gotten a couple of emails from
people with a similar issue so I thought I'd post on update on the issue.
Volker was on the right track in suggesting that it was a validation issue.
In my case, the values for the SelectItems were based on 15-minute
increments of the current system time. Since the current system time
changes from the point where the form is rendered to the point where the
form is submitted, the JSF validators were throwing an error because the
value is no longer submitted. If you have a similar sort of issue, I'd
suggest looking for validation errors by including an <h:messages> tag
somewhere in your form.
Volker Weber-5 wrote:
>
> Hi Cedric,
>
> 2008/8/24 Cedric Hurst <cedric.hu...@gmail.com>:
>>
>> I have an <h:form> which contains two <h:selectOneMenu> elements. These
>> elements are being populated programatically with a <f:selectItems> tied
>> to
>> a JSF managed bean which returns List<SelectItem>. Unfortunately, when I
>> attempt to click the <h:commandButton> to invoke an action, the action
>> does
>> not get processed. I receive no error message, it just fails silently.
>> If
>
> i can't find any h:messages tag to show the error messages in you jsf
> sources.
> How could yo be sure there is no conversion/validation error?
>
> Try adding a h:messages tag somewhere.
>
> Regards,
> Volker
>
>> I remove the <h:selectOneMenu> elements from the code, the action is
>> processed fine. Here are some code snippets:
>>
>> JSP Code for the Form:
>>
>> <h:form id="status">
>> <p>Today, I'm working at
>> <h:selectOneMenu value="#{event.placeId}">
>> <f:selectItem itemLabel="-- Select a location --"
>> />
>> <f:selectItems value="#{place.placeOptions}"/>
>> </h:selectOneMenu>
>> from
>>
>> <h:selectOneMenu id="startTime" value="#{event.start}">
>> <f:selectItems
>> value="#{event.possibleStartTimes}"/>
>> </h:selectOneMenu>
>> to
>> <h:selectOneMenu id="endTime" value="#{event.finish}">
>> <f:selectItems
>> value="#{event.possibleFinishTimes}"/>
>> </h:selectOneMenu>
>>
>> <h:commandButton action="#{event.createEventAction}"
>> value="Mowork"/>
>> </p>
>> </h:form>
>>
>> Managed Bean methods to Populate Menu Items:
>>
>> private List<SelectItem> selectItemsFromTimeRange(Calendar begin,
>> Calendar
>> end)
>> {
>> List<SelectItem> items = new ArrayList<SelectItem>();
>>
>> while(begin.compareTo(end) < 0)
>> {
>> items.add(new SelectItem(
>> new Long(begin.getTimeInMillis()).toString(),
>> timeFormat.format(begin.getTime())
>> ));
>>
>> begin.add(Calendar.MINUTE, 15);
>> }
>>
>> return items;
>> }
>>
>> public List<SelectItem> getPossibleStartTimes()
>> {
>> Calendar time =
>> Calendar.getInstance(TimeZone.getTimeZone("America/Chicago"));
>>
>> List<SelectItem> items = new ArrayList<SelectItem>();
>>
>> items.add(new SelectItem(
>> timeFormat.format(time.getTime()),
>> "Right Now"
>> ));
>>
>> Calendar begin = (Calendar)time.clone();
>> begin.add(Calendar.MINUTE, 1);
>> if(begin.get(Calendar.MINUTE)%15 != 0)
>> begin.add(Calendar.MINUTE,
>> 15-(begin.get(Calendar.MINUTE)%15));
>>
>> Calendar end = (Calendar)begin.clone();
>> end.add(Calendar.HOUR, 24);
>>
>> items.addAll(selectItemsFromTimeRange(begin, end));
>>
>> return items;
>> }
>>
>> public List<SelectItem> getPossibleFinishTimes()
>> {
>> Calendar begin =
>> Calendar.getInstance(TimeZone.getTimeZone("America/Chicago"));
>> begin.add(Calendar.MINUTE, 15);
>> if(begin.get(Calendar.MINUTE)%15 != 0)
>> begin.add(Calendar.MINUTE,
>> 15-(begin.get(Calendar.MINUTE)%15));
>>
>> Calendar end = (Calendar)begin.clone();
>> end.add(Calendar.HOUR, 24);
>>
>> return selectItemsFromTimeRange(begin, end);
>> }
>>
>> Managed Bean method to Process Action:
>>
>> public String createEventAction()
>> {
>> System.out.println("create event action is running");
>> return "createEventSuccess";
>> }
>>
>> The full codebase for working and non-working versions can also be found
>> here:
>>
>> http://trac.assembla.com/moworking/browser/branches/CreateEventActionWorkingWithNoSelectItems?rev=63
>>
>> http://trac.assembla.com/moworking/browser/branches/CreateEventActionNotWorkingWithSelectItems?rev=65
>>
>> Please let me know if you have any suggestions.
>>
>> Environment
>> ===
>> MyFaces Core 1.2.3
>> MyFaces Tomahawk 1.1.6
>> Apache Geronimo 2.1.2 (Tomcat)
>> Java HotSpot 1.5.0 64-bit Server VM
>> Apple Mac OS X 10.5 (Leopard)
>> Thanks,
>> - C
>> --
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>> Sent from the MyFaces - Users mailing list archive at Nabble.com.
>>
>>
>
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