[ http://issues.apache.org/jira/browse/MYFACES-753?page=all ]
Martin Marinschek closed MYFACES-753:
-------------------------------------
Fix Version: Nightly
Resolution: Fixed
thanks to Nico Krijnen for pointing this out.
> HtmlDataList.processDecodes processes its children twice
> --------------------------------------------------------
>
> Key: MYFACES-753
> URL: http://issues.apache.org/jira/browse/MYFACES-753
> Project: MyFaces
> Type: Bug
> Components: Tomahawk
> Versions: Nightly, 1.1.0
> Environment: MyFaces and Tomahawk 1.1.0 (and nightly build), Tiles
> Reporter: Nico Krijnen
> Fix For: Nightly
>
> When using commandLinks in a dataList, their action methods are executed
> twice. The problem seems to be caused by the processDecodes method in
> org.apache.myfaces.custom.datalist.HtmlDataList. This method processes the
> events for its children and then calls super.processDecodes, causing its
> superclass to process its children once more. This way two action events are
> queued.
> When I comment out the call to super.processDecodes it all works as it
> should, but I am unsure whether that might have any side effects.
> processUpdates and processValidators seem to have the same processing
> behaviour, I did not test them though, so I don't know if that causes any
> problems.
> The bug occurs in the following setup:
> <t:dataList id="orderTest"
> value="#{myBean.items}" var="item"
> layout="unorderedList">
> <h:column>
> <h:commandLink action="#{myBean.addItem}">
> <h:outputText value="add within list" />
> </h:commandLink>
> </h:column>
> </t:dataList>
> With the following corresponding methods in my backing bean:
> public void addItem() {
> SomeObject item = (SomeObject) FacesUtils.getManagedBean("item");
> List items = getItems();
> if (item != null) {
> int pos = 0;
> for (Iterator iter = items.iterator(); iter.hasNext() &&
> iter.next() != item; pos++) {
> }
> orderItems.add(pos + 1, newItem);
> } else {
> orderItems.add(newItem);
> }
> }
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