Custom Parser Subreporting

[DotComERP]

Hello, I'm having some problems and I hope you could help me!

I'm trying to create a subreport in Openerp using jasperreports and a custom parser. The main reports appears great but no data is sent to the subreport. After some research I found this page: http://www.zbeanztech.com/blog/jasper-report-using-wizard fom Zesty Beanz. After implementation on the report generation it gives the following error: " openerp.service.web_services: Exception: ('Report Error', 'Failed to invoke method execute in class com.nantic.jasperreports.JasperServer: Error evaluating expression : \n\tSource text : ((net.sf.jasperreports.engine.data.JRXmlDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("sub_report")') "
PS: sub_report is the field name containing the data to the subreport!

[Zesty Beanz Technologies Pvt Ltd (jo0thlt)]

First of all add '//' before the subreport field name. For example ((net.sf.jasperreports.engine.data.JRXmlDataSource)$P{REPORT_DATA_SOURCE}).subDataSource("//sub_report_field_name")')

Then check the datasource you have selected is xpath. Then in the python file there is a function called generate_datasource, which returns empty dict. Please change it to 'xml_records'