Hello again,
I have a new problem related to this loop of radio buttons :
I want to make a list of forms, with each form containing a list of radio
buttons.
I can easily do that in a "static" way, with an index.tml file containing
the following lines :
...
<t:surveys.surveySuggestionsForm surveyId="1" />
<t:surveys.surveySuggestionsForm surveyId="2" />
<t:surveys.surveySuggestionsForm surveyId="3" />
...
And the SurveySuggestionsForm.tml :
<t:form t:id="survey_form">
<t:radiogroup t:id="suggestionRG" value="selectedSuggestion"
encoder="suggestionEncoder">
<t:loop source="suggestions" value="suggestionLoopValue"
encoder="suggestionEncoder">
<t:radio t:id="radio" value="suggestionLoopValue"/>
<t:label for="radio">${suggestionLoopValue.label}</t:label>
</t:loop>
</t:radiogroup>
<t:submit id="surveyVote" t:id="vote" t:mixins="confirm"
image="context:images/vote_button.gif" />
</t:form>
Here is the code of SurveySuggestionsForm.java
public class SurveySuggestionsForm {
private static final Logger sLogger = Logger.getLogger
(SurveyResults.class);
@Parameter(required=true)
private int surveyId;
@Inject
private ApplicationStateManager applicationStateManager;
@Inject
private ISurveyManager mSurveyManager;
@Property(write=false)
@Persist
private User userInSession;
@Property
@Persist("SESSION")
private com.titans.surveys.model.Survey survey;
@Persist
@Property
private Suggestion selectedSuggestion;
@SuppressWarnings("unused")
@Property
private Suggestion suggestionLoopValue;
@Property
@Persist
private List<Suggestion> suggestions;
@SuppressWarnings("unused")
@Property
private ValueEncoder<Suggestion> suggestionEncoder = new
ValueEncoder<Suggestion> () {
public String toClient (Suggestion pSuggestion) {
return (String.valueOf (suggestions.indexOf
(pSuggestion)));
}
public Suggestion toValue (String pId) {
return (suggestions.get (Integer.parseInt (pId)));
}
};
public void beginRender() {
this.survey = mSurveyManager.findById(surveyId);
if (this.survey == null) {
sLogger.error("Survey in parameter is null");
}
else {
userInSession =
applicationStateManager.get(SessionContent.class).getUser();
this.suggestions = new
ArrayList<Suggestion>(survey.getSuggestions());
}
}
public String onSuccess () {
boolean resultOfVote = mSurveyManager.vote(survey,
userInSession,
selectedSuggestion);
return null;
}
public boolean isSurveyNotNull() {
return (survey != null);
}
public boolean isUserLoggedIn() {
return (userInSession != null);
}
}
The problem is when the surveyId in parameter of the surveySuggestionsForm
component is filled in a dynamic way :
<t:loop source="surveys" value="surveyLoopValue" encoder="surveyEncoder">
<t:surveys.surveySuggestionsForm surveyId="${surveyLoopValue.id}" />
</t:loop>
In this case, when a form is submited, the related surveySuggestionsForm
didn't seem to receive the correct value for the list named "suggestions",
and an exception is throwed :
org.apache.tapestry5.runtime.ComponentEventException: Index: 3, Size: 3 [at
classpath:com/titans/surveys/components/surveys/SurveySuggestionsForm.tml,
line 4]
at
org.apache.tapestry5.internal.structure.ComponentPageElementImpl.triggerContextEvent(ComponentPageElementImpl.java:1098)
at
org.apache.tapestry5.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:75)
at
org.apache.tapestry5.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)
at
$ComponentEventRequestHandler_126227efea9.handle($ComponentEventRequestHandler_126227efea9.java)
at
org.apache.tapestry5.internal.services.AjaxFilter.handle(AjaxFilter.java:42)
at
$ComponentEventRequestHandler_126227efea9.handle($ComponentEventRequestHandler_126227efea9.java)
at
org.apache.tapestry5.services.TapestryModule$36.handle(TapestryModule.java:2164)
at
$ComponentEventRequestHandler_126227efea9.handle($ComponentEventRequestHandler_126227efea9.java)
at
$ComponentEventRequestHandler_126227efe20.handle($ComponentEventRequestHandler_126227efe20.java)
at
org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handleComponentEvent(ComponentRequestHandlerTerminator.java:43)
at
com.titans.surveys.services.access.AccessComponentRequestFilter.handleComponentEvent(AccessComponentRequestFilter.java:32)
at
$ComponentRequestHandler_126227efe21.handleComponentEvent($ComponentRequestHandler_126227efe21.java)
at
$ComponentRequestHandler_126227efe13.handleComponentEvent($ComponentRequestHandler_126227efe13.java)
at
org.apache.tapestry5.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:46)
at $Dispatcher_126227efe15.dispatch($Dispatcher_126227efe15.java)
at $Dispatcher_126227efe0c.dispatch($Dispatcher_126227efe0c.java)
at
org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:245)
at
org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26)
at $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.java)
at
org.apache.tapestry5.services.TapestryModule$4.service(TapestryModule.java:778)
at $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.java)
at
org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:767)
at $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.java)
at
org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:85)
at $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.java)
at com.titans.surveys.services.AppModule$1.service(AppModule.java:100)
at $RequestFilter_126227efe08.service($RequestFilter_126227efe08.java)
at $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.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 $RequestHandler_126227efe0d.service($RequestHandler_126227efe0d.java)
at $RequestHandler_126227efe02.service($RequestHandler_126227efe02.java)
at
org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:197)
at
org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53)
at
$HttpServletRequestHandler_126227efe04.service($HttpServletRequestHandler_126227efe04.java)
at
org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62)
at
$HttpServletRequestFilter_126227efe01.service($HttpServletRequestFilter_126227efe01.java)
at
$HttpServletRequestHandler_126227efe04.service($HttpServletRequestHandler_126227efe04.java)
at
org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:726)
at
$HttpServletRequestHandler_126227efe04.service($HttpServletRequestHandler_126227efe04.java)
at
$HttpServletRequestHandler_126227efdff.service($HttpServletRequestHandler_126227efdff.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.springframework.orm.jpa.support.OpenEntityManagerInViewFilter.doFilterInternal(OpenEntityManagerInViewFilter.java:112)
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
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:175)
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:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.tapestry5.ioc.internal.util.TapestryException: Index:
3, Size: 3 [at
classpath:com/titans/surveys/components/surveys/SurveySuggestionsForm.tml,
line 5]
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_1262280196c.invokeAdvisedMethod(Form$onAction$invocation_1262280196c.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)
... 59 more
Caused by: java.lang.IndexOutOfBoundsException: Index: 3, Size: 3
at java.util.ArrayList.RangeCheck(Unknown Source)
at java.util.ArrayList.get(Unknown Source)
at
com.titans.surveys.components.surveys.SurveySuggestionsForm$1.toValue(SurveySuggestionsForm.java:65)
at
com.titans.surveys.components.surveys.SurveySuggestionsForm$1.toValue(SurveySuggestionsForm.java:1)
at
org.apache.tapestry5.corelib.components.RadioGroup.processSubmission(RadioGroup.java:167)
at
org.apache.tapestry5.corelib.components.RadioGroup.access$100(RadioGroup.java:29)
at
org.apache.tapestry5.corelib.components.RadioGroup$1.execute(RadioGroup.java:137)
at
org.apache.tapestry5.corelib.components.RadioGroup$1.execute(RadioGroup.java:141)
at
org.apache.tapestry5.corelib.components.Form.executeStoredActions(Form.java:480)
... 69 more
Could someone know what I'm doing wrong ? Maybe a problem with t:id or
something like this ?
regards,
Antoine.
antb59 wrote:
>
> Thanks for you fast answer Christophe !
>
> Here is the new code for my radioGroup :
>
> <t:radiogroup t:id="suggestionRG" value="selectedSuggestion"
> encoder="suggestionEncoder">
> <t:loop source="suggestions" value="suggestionLoopValue"
> encoder="suggestionEncoder">
> <t:radio t:id="radio" value="suggestionLoopValue"/>
> <t:label for="radio">${suggestionLoopValue.label}</t:label>
> </t:loop>
> </t:radiogroup>
>
>
> It works!
> Many thanks.
>
>
>
> cordenier christophe wrote:
>>
>> Oups, it's the radiogroup that need it :)
>>
>> 2009/12/28 cordenier christophe <christophe.corden...@gmail.com>
>>
>>> Hi
>>>
>>> I think you have to specify the encoder on the form element too.
>>>
>>> 2009/12/28 antb59 <ant...@gmail.com>
>>>
>>>
>>>> Hello,
>>>>
>>>> I'm trying to make a tapestry component that looks like a poll.
>>>> This component will contain a question, a list of suggestions, and a
>>>> button
>>>> to vote.
>>>> I didn't want to use Ajax at first, and the click on the vote button
>>>> will
>>>> reload the whole page for example.
>>>>
>>>> The question and the list of suggestions were load from my database,
>>>> and I
>>>> have no problem to display them correctly on my form.
>>>> If no radio button is selected, I can click on the vote button, it
>>>> works.
>>>> The problem occurs when I'm trying to submit the form and when a radio
>>>> button is selected.
>>>>
>>>> Here is the code of my .tml file :
>>>>
>>>> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
>>>> "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>
>>>> <t:container xmlns:t="
>>>> http://tapestry.apache.org/schema/tapestry_5_1_0.xsd";
>>>> xmlns:p="tapestry:parameter">
>>>> <t:form t:id="survey_form">
>>>> <h4>${formSurvey.category.label}</h4>
>>>> <h5>${formSurvey.startDate}</h5>
>>>> <p id="surveyLabel">${formSurvey.label}</p>
>>>>
>>>> <t:radiogroup t:id="suggestionRG"
>>>> value="selectedSuggestion">
>>>> <t:loop source="suggestions"
>>>> value="suggestionLoopValue"
>>>> encoder="suggestionEncoder">
>>>> <t:radio t:id="radio"
>>>> value="suggestionLoopValue"/>
>>>> <t:label
>>>> for="radio">${suggestionLoopValue.label}</t:label>
>>>> </t:loop>
>>>> </t:radiogroup>
>>>>
>>>> <t:submit id="surveyVote" t:id="vote"
>>>> image="context:images/vote_button.gif" />
>>>> </t:form>
>>>> </t:container>
>>>>
>>>>
>>>>
>>>> And here is the code of my java file :
>>>>
>>>> @SuppressWarnings("unused")
>>>> public class Survey {
>>>>
>>>> @Parameter(required=true)
>>>> private int surveyId;
>>>>
>>>> @Property
>>>> @Persist("SESSION")
>>>> private com.titans.surveys.model.Survey formSurvey;
>>>>
>>>> @Inject
>>>> private ISurveyManager mSurveyManager;
>>>>
>>>> @Persist
>>>> @Property
>>>> private Suggestion selectedSuggestion;
>>>>
>>>> @Property
>>>> private Suggestion suggestionLoopValue;
>>>>
>>>> @Property
>>>> @Persist
>>>> private List<Suggestion> suggestions;
>>>>
>>>> @Property
>>>> private ValueEncoder<Suggestion> suggestionEncoder = new
>>>> ValueEncoder<Suggestion> () {
>>>> public String toClient (Suggestion pSuggestion) {
>>>> return (String.valueOf (suggestions.indexOf
>>>> (pSuggestion)));
>>>> }
>>>> public Suggestion toValue (String pId) {
>>>> return (suggestions.get (Integer.parseInt
>>>> (pId)));
>>>> }
>>>> };
>>>>
>>>>
>>>> public void beginRender() {
>>>> this.formSurvey = mSurveyManager.findById(surveyId);
>>>> if (this.formSurvey == null) {
>>>> sLogger.error("Unable to retrieve survey with id
>>>> =
>>>> " + surveyId);
>>>> }
>>>> else {
>>>> if ((this.suggestions == null)
>>>> ||this.suggestions.isEmpty())
>>>> this.suggestions = new
>>>> ArrayList<Suggestion>(formSurvey.getSuggestions());
>>>> }
>>>> }
>>>>
>>>> }
>>>>
>>>>
>>>> Here is the ComponentEventException throwed :
>>>>
>>>> Could not find a coercion from type java.lang.String to type
>>>> com.titans.surveys.model.Suggestion. Available coercions: Double -->
>>>> Float,
>>>> Float --> Double, Long --> Boolean, Long --> Byte, Long --> Double,
>>>> Long
>>>> -->
>>>> Integer, Long --> Short, Number --> Long, Object --> Object[], Object
>>>> -->
>>>> String, Object --> java.util.List, Object[] --> java.util.List, String
>>>> -->
>>>> Boolean, String --> Double, String --> Long, String --> java.io.File,
>>>> String
>>>> --> java.math.BigDecimal, String --> java.math.BigInteger, String -->
>>>> java.text.DateFormat, String --> java.util.regex.Pattern, String -->
>>>> org.apache.tapestry5.Renderable, String -->
>>>> org.apache.tapestry5.SelectModel, String -->
>>>> org.apache.tapestry5.corelib.LoopFormState, String -->
>>>> org.apache.tapestry5.corelib.data.BlankOption, String -->
>>>> org.apache.tapestry5.corelib.data.GridPagerPosition, String -->
>>>> org.apache.tapestry5.corelib.data.InsertPosition, String -->
>>>> org.apache.tapestry5.ioc.Resource, String -->
>>>> org.apache.tapestry5.ioc.util.TimeInterval, boolean[] -->
>>>> java.util.List,
>>>> byte[] --> java.util.List, char[] --> java.util.List, double[] -->
>>>> java.util.List, float[] --> java.util.List, int[] --> java.util.List,
>>>> java.math.BigDecimal --> Double, java.util.Collection --> Boolean,
>>>> java.util.Collection --> Object[], java.util.Collection -->
>>>> org.apache.tapestry5.grid.GridDataSource, java.util.List -->
>>>> org.apache.tapestry5.SelectModel, java.util.Map -->
>>>> org.apache.tapestry5.SelectModel, long[] --> java.util.List, null -->
>>>> Boolean, null --> org.apache.tapestry5.grid.GridDataSource,
>>>> org.apache.tapestry5.ComponentResources -->
>>>> org.apache.tapestry5.PropertyOverrides,
>>>> org.apache.tapestry5.PrimaryKeyEncoder -->
>>>> org.apache.tapestry5.ValueEncoder, org.apache.tapestry5.Renderable -->
>>>> org.apache.tapestry5.Block, org.apache.tapestry5.Renderable -->
>>>> org.apache.tapestry5.runtime.RenderCommand,
>>>> org.apache.tapestry5.ioc.util.TimeInterval --> Long,
>>>> org.apache.tapestry5.runtime.ComponentResourcesAware -->
>>>> org.apache.tapestry5.ComponentResources, short[] --> java.util.List
>>>>
>>>>
>>>>
>>>> Could someone know what I'm doing wrong ?
>>>>
>>>> regards,
>>>> Antoine.
>>>> --
>>>> View this message in context:
>>>> http://old.nabble.com/Loop%2C-RadioGroup-and-Coercion-tp26944581p26944581.html
>>>> Sent from the Tapestry - User mailing list archive at Nabble.com.
>>>>
>>>>
>>>> ---------------------------------------------------------------------
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>>>>
>>>>
>>>
>>
>>
>
>
--
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