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/TaskSelectData.java
{
				try
				{
					
					final String[] header = getDataServiceProvider( ).getPreviewHeader( );
					final List dataList = getDataServiceProvider( ).getPreviewData( );
					
					Display.getDefault( ).syncExec( new Runnable( ) {
						public void run( )
						{
							if ( tablePreview.isDisposed( ) )
							{
								return;
							}
							
							if ( header == null )
							{
								tablePreview.setEnabled( false );
								tablePreview.createDummyTable( );
							}
							else
							{
								tablePreview.setEnabled( true );
								tablePreview.setColumns( header );
								refreshTableColor( );
								
								for ( Iterator iterator = dataList.iterator( ); iterator.hasNext( ); )
								{
									String[] dataRow = (String[]) iterator.next( );
									for ( int i = 0; i < dataRow.length; i++ )