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/ReportDataServiceProvider.java
}
	protected int invokeEditParameter( )
	{
		ReportItemParametersDialog page = new ReportItemParametersDialog( itemHandle );
		return page.open( );
	}
	protected int invokeDataBinding( )
	{
		Shell shell = new Shell( Display.getDefault( ), SWT.DIALOG_TRIM
				| SWT.RESIZE | SWT.APPLICATION_MODAL );
		
		
		
		
		ColumnBindingDialog page = new ChartColumnBindingDialog( shell );
		page.setInput( itemHandle );
		
		ExpressionProvider ep = new ExpressionProvider( itemHandle );
		ep.addFilter( new ExpressionFilter( ) {
			public boolean select( Object parentElement, Object element )
			{
				
				return !( parentElement.equals( ExpressionProvider.BIRT_OBJECTS )
						&& element instanceof IClassInfo && ( (IClassInfo) element ).getName( )
						.equals( "Total" ) ); 
			}
		} );
		page.setExpressionProvider( ep );
		return page.open( );
	}