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From "sean schofield (JIRA)" <myfaces-...@incubator.apache.org>
Subject [jira] Commented: (MYFACES-228) Sortheader functionality does not work if datatable contains editable components
Date Sun, 22 May 2005 22:14:57 GMT
     [ http://issues.apache.org/jira/browse/MYFACES-228?page=comments#action_66004 ]
     
sean schofield commented on MYFACES-228:
----------------------------------------

What do the committers think about this?  There are tons of refs to the getStringValue method.
 My guess is that the reason why the submitted value is used is so if there is a validation
error, the incorrect value can be rendered without changing the model.  So this behavior is
probably correct although clearly not desirable in the case of a sortable data table.

> Sortheader functionality does not work if datatable contains editable components
> --------------------------------------------------------------------------------
>
>          Key: MYFACES-228
>          URL: http://issues.apache.org/jira/browse/MYFACES-228
>      Project: MyFaces
>         Type: Bug
>     Versions: 1.0.9 beta
>  Environment: WindowsXP, JDK 1.4.1_06, Tomcat 5.5
>     Reporter: Rolf Kulemann
>     Priority: Critical

>
> I'm using a dataTable with sortheader. Everything is fine as long as I
> use outputText instead of a inputText. If I use inputText, the
> List/array is sorted correct on the srever side when my value binding is invkoked by
the datatable, but the old model (unsorted) is displayed.
> I debuged that a bit and recognized, that as soon as I click any command button, the
sorted list gets displayed correctly. This is because refresh() is called in the datatable
when clicking a commandButton. Refresh isn't called when u click on the sort header command.
On the other hand using outputText works fine. While looking at the HtmlDataTableHack class
i found
>  private static int restoreDescendantComponentStates(UIComponent component,
>                                                         EditableValueHolderState[] states,
>                                                         EditableValueHolderState[] initialStates,
>                                                         int counter, int level)
>     {
>         for (Iterator it=getChildrenAndOptionalFacetsIterator(level, component); it.hasNext();)
>         {
>             UIComponent child = (UIComponent)it.next();
>             //clear this descendant's clientId:
>             child.setId(child.getId()); //HACK: This assumes that setId always clears
the cached clientId. Can we be sure?
>             if (child instanceof EditableValueHolder)
>             {
>                 if (states != null)
>                 {
>                     states[counter].restore((EditableValueHolder)child);
>                 }
>                 else if (initialStates != null)
>                 {
>                     initialStates[counter].restore((EditableValueHolder)child);
>                 }
>                 else
>                 {
>                     // No state saved yet and no initial state !?
>                     // Should never be possible, but let's reset the component
>                     // state to null values
>                     ((EditableValueHolder)child).setValue(null);
>                     ((EditableValueHolder)child).setLocalValueSet(false);
>                     ((EditableValueHolder)child).setValid(true);
>                     ((EditableValueHolder)child).setSubmittedValue(null);
>                 }
>                 counter++;
>             }
>             counter = restoreDescendantComponentStates(child, states, initialStates,
counter,level+1);
>         }
>         return counter;
>     }
> Not sure, but it seems that this codes cuases the old model state to be rendered and
not the newly sorted one. If I have time, I will track it down a bit more.
> You can simply reproduce this by changing the sortTable example. You
> only need to change outputText into inputText.

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