[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-1911) s:link, s:button : Support propagation of selected DataModel row also for Trinidad tr:table

[ http://jira.jboss.com/jira/browse/JBSEAM-1911?page=comments#action_12376022 ] Wolfgang Schwendt commented on JBSEAM-1911: ------------------------------------------- The patch reveals another problem which was not noticed before: In order to determine which row is selected org.jboss.seam.ui.component.UISelection.getValue() looks up the DataModel via Contexts.lookupInStatefulContexts(getDataModel()), where getDataModel() yields the name of the DataModel. (The dataModel property of UISelection is set by UISeamCommandBase.getSelection() ). The problem occurs when the ValueExpression for the value property of the DataTable control is an EL path expression with 2 or more parts, e.g. something like #{baseObject.dataModel}. Then UISeamCommandBase.getSelection() simply takes "baseObject.dataModel" as the name of the DataModel. Consequently the DataModel is not found by the Context lookup in UISelection.getValue(), because to successfully lookup the DataModel, UISelection.getValue() would actually have to evaluate the ValueExpression for the value property of the DataTable control. And because the DataModel is not found by UISelection.getValue(), the URL generated by an <s:link> or <s:button> shows a request parameter "dataModelSelection" with an empty value (dataModelSelection=) -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.jboss.com/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira