commandButton inside datatable doesn't process action
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Key: MYFACES-1357
URL: http://issues.apache.org/jira/browse/MYFACES-1357
Project: MyFaces Core
Type: Bug
Versions: 1.1.3
Environment: Windows XP SP2, JDK 1.5 Update 7, TomCat 5.5.17, MyFaces 1.1.3
Reporter: Jose Luis Freire
Consider a simple datatable:
<h:dataTable
value="#{userProfile.associations}"
var="association">
<h:column>
<h:commandButton
action="#{userProfile.selecting}" value="#{association.entityCodeTo}" />
</h:column>
<h:column>
<h:outputText
value="#{association.dateFrom}"></h:outputText>
</h:column>
</h:dataTable>
Now consider that the list returned by userProfile.associations is null (or an
empty ArrayList) in the first time it get's called (in ApplyRequestValues
phase), and is fully populated in the RenderResponse phase (because it depends
on settings populated in the UpdateModel phase).
When the commandButton is pressed, the method in the action
(userProfile.selecting) will not be called.
The only workaround is implementing the getAssociations like this:
public List<EntityAssociationData> getAssociations() {
if (business rule is populated) {
associationData = getAssociationsFromSystem();
} else
if (associationData == null) {
/* We must always return a arraylist with at
least one element */
associationData = new
ArrayList<EntityAssociationData>();
EntityAssociationData entityAssociationData =
new EntityAssociationData();
associationData.add(entityAssociationData);
}
}
We *really* need that bogus entry, so the ArrayList has a size > 0, or else the
userProfile.selecting() method will never be called.
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