[jira] [Closed] (TAP5-1796) Flash persistence not working after a zone within a form is updated in a parameterized page

["Jochen Kemnade (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TAP5-1796?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jochen Kemnade closed TAP5-1796.
--------------------------------
    Resolution: Not A Problem

If you still think that there's a bug, please reopen this issue.

> Flash persistence not  working after a zone within a form  is updated in a parameterized page 
> ----------------------------------------------------------------------------------------------
>
>                 Key: TAP5-1796
>                 URL: https://issues.apache.org/jira/browse/TAP5-1796
>             Project: Tapestry 5
>          Issue Type: Bug
>          Components: tapestry-core
>    Affects Versions: 5.3, 5.4
>            Reporter: Shing Hing Man
>            Priority: Minor
>         Attachments: testgeneric-src.jar
>
>
> In Tapestry 5.3, I have a page PageA  which is  a parameterized page of a generic base page.
> PageA has a form with a zone. Somehow no result is rendered  on the client side if the zone is updated, and then follow by a form  submit. 
> Attached is a maven project to reproduce  my error.
> Steps to reproduce error :  pageA -> choose Audi -> click submit
>                                     (then Audi, A4 are displayed on the bottom of the page)
>                                        --> choose BMW
>                                        -- > click submit
>                                     This time, make and model are both blank  at the bottom of the page.                                        
>                                      I was expecting BMW and 3 series to be displayed.
>           
>                                    
> {code}                                     
> public abstract class BasePage<T extends BaseBean>{
>     private Logger log = Logger.getLogger(BasePage.class);
> 	
> 	@Persist(PersistenceConstants.FLASH)
> 	private T bean;
> 	
> 	@Persist(PersistenceConstants.FLASH)
> 	@Property
> 	private boolean showOutput;
> 	
> 	
> 	void onSubmitFromForm(){
> 		showOutput = true;
> 	}
> 	
> 	public T getBean(){
> 		 
> 		if (bean == null){
> 		    bean = createBean();
> 			
> 		}
> 		return bean;
> 	}
> 	
> 	
> 	protected T createBean(){
> 		T newInstance = null;
> 		
> 		    try {
> 		        Class<T> clazz = getBeanClass();
> 				newInstance =clazz.newInstance();
> 			} catch (InstantiationException e) {
> 				log.info(e);
> 				
> 			} catch (IllegalAccessException e) {
> 				log.info(e);
> 			}
> 		
> 	    return newInstance;
> 	}
> 	
> 	
> 	protected abstract Class<T> getBeanClass();
> }
> {code}
> ------------
> {code}
> public class PageA extends BasePage<PageABean> {
> 	@InjectComponent
> 	private Zone modelZone;
> 	@Property
> 	@Persist
> 	private List<String> availableModels;
> 	
> 	public Object onValueChanged(CarMaker maker) 
>     {
>        availableModels = findAvailableModels(maker);
>        
>        return modelZone.getBody();
>     }
>     
>     public List<String> findAvailableModels(final CarMaker maker) 
>     {
>       switch (maker) 
>       {
>          case AUDI:
>             return Arrays.asList("A4", "A6", "A8");
>          case BMW:
>             return Arrays.asList("3 Series", "5 Series", "7 Series");
>          case MERCEDES:
>             return Arrays.asList("C-Class", "E-Class", "S-Class");
>          default:
>             return Arrays.asList();
>        }
>     }
>     
>     
> 	@Override
> 	protected Class<PageABean> getBeanClass() {
> 		return PageABean.class;
> 	}
> 	
> }
> {code}
> ----------------
> PageA.tml
> {code}
>      <t:form>
>       <p>
>          <t:errors />
>       </p>
>       <p>
>          Car Marker : <t:select t:id="carMaker" validate="required" value="bean.carMaker"
>                    zone="modelZone" />
>       </p>
>       
>       <t:zone t:id="modelZone" id="modelZone">
>          <t:if test="bean.carMaker">
>            <p>
>               Model : <t:select t:id="carModel" model="availableModels" validate="required" value="bean.model"/>
>            </p>
>          </t:if>
>       </t:zone>
>       
>       <p>
>          <t:submit value="literal:Submit" />
>       </p>
>    </t:form>
>      
>      <t:if test="showOutput">
>            Make = ${bean.carMaker} <br/>
>            model = ${bean.model}
>  
>      </t:if>
>     </body>
> {code}
> ----------------
> {code}
> public class PageABean extends BaseBean {
> 	public enum CarMaker {
> 		MERCEDES, AUDI, BMW;
> 	}
> 	
> 	
> 	private CarMaker carMaker;
> 	
> 	private String model;
> 	
> 	public String getModel() {		
> 		return model;
> 	}
> 	public void setModel(String model) {
> 		this.model = model;
> 	}
> 	public CarMaker getCarMaker() {
> 		return carMaker;
> 	}
> 	public void setCarMaker(CarMaker carMaker) {
> 		this.carMaker = carMaker;
> 	}
> }
> {code}



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