def list_reports(employee_id=None, status=None):
query = Query(kind='Expense Report')
if employee_id is not None:
key = Key('Employee', employee_id)
query.ancestor = key
if status is not None:
query.add_filter('status', '=', status)
for report in query.fetch():
yield _report_info(report)
def _fetch_report_items(report):
query = Query(kind='Expense Item')
query.ancestor = report.key
for item in query.fetch():
yield item
def _fetch_reports(employee):
query = Query(kind='Expense Report')
query.ancestor = employee.key
for item in query.fetch():
yield item