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.ui.extension/src/org/eclipse/birt/chart/ui/swt/wizard/TaskFormatChart.java
{
			lblNodeTitle.setFont( JFaceResources.getBannerFont( ) );
		}
		Label separator = new Label( cmpTask, SWT.SEPARATOR | SWT.HORIZONTAL );
		{
			GridData gd = new GridData( GridData.FILL_HORIZONTAL );
			separator.setLayoutData( gd );
		}
		return cmpTask;
	}
	protected Composite createTitleArea( Composite parent )
	{
		Composite cmpTitle = super.createTitleArea( parent );
		( (GridData) cmpTitle.getLayoutData( ) ).heightHint = 250;
		previewCanvas = new Canvas( cmpTitle, SWT.BORDER );
		{
			GridData gd = new GridData( GridData.FILL_BOTH );
			gd.horizontalSpan = 2;
			previewCanvas.setLayoutData( gd );
			previewCanvas.setBackground( Display.getDefault( )
					.getSystemColor( SWT.COLOR_WHITE ) );
		}
		return cmpTitle;
	}
	protected String getTitleAreaString( )
	{
		return Messages.getString( "TaskFormatChart.Label.Preview" ); 
	}
	protected void createSubtaskArea( Composite parent, ISubtaskSheet subtask )
	{