Bug 193296 Subquery does not return value for chart
I've tried 2.1.x and 2.2RC but I get always an error. org.eclipse.birt.report.engine.data.dte.DataGenerationEngine doExecuteQuery SEVERE: Data engine operation failed due to an unexpected exception. Error evaluating Javascript expression. Script engine error: TypeError: Cannot read property "ISO_LAND" from null Script source: source, line: 0, text: row._outer["ISO_LAND"] + Result iterator has no current row. It either has not started or has ended. I would like to build a report based on a query that returns a list of countries eg.: report_query=select country_id from ... where sales>100 for each country I'd like to have a line chart with sales vs. budget eg.: sub_query= select month,bud,sales from ... where country = ? If I drag the subquery into the "main" table, connect parameter to row[]. no problem. I get bud vs. sales values for each country. If I place a chart based on sub_query in the "main" table. I get the error shown above. In this case I have to connect the parameter to row._outer[] and for some reason I don't see any values in the chart preview?!?
chart/org.eclipse.birt.chart.reportitem.ui/src/org/eclipse/birt/chart/reportitem/ui/dialogs/ReportItemParametersDialog.java
/**
	 * reconstruct the content of the table to show the last parameters in
	 * DataSet.
	 */
	private void reconstructTable( )
	{
		
		
		tableViewer.setInput( reportItemHandle );
		
		expressionCellEditor.setItemHandle( reportItemHandle );
	}
	/**
	 * Sets text of Value column
	 */
	private void updateBindingData( )
	{
		if ( DEUtil.getDataSetList( reportItemHandle ).size( ) == 0 )
			return;
		Iterator iterator = reportItemHandle.paramBindingsIterator( );
		while ( iterator != null && iterator.hasNext( ) )
		{
			ParamBindingHandle handle = (ParamBindingHandle) iterator.next( );
			String expression = handle.getExpression( );
			int rowIndex = this.bindingParametersList.indexOf( handle );
			if ( rowIndex != -1 && expression != null )
			{
				table.getItem( rowIndex ).setText( columnNames.length - 1,
						expression );
				Item item = table.getItem( rowIndex );