data analysis creation: workaround the case that no device configuration portal type exists

without this work around aggregate from any portal type would be returned, because getAggregateValue(portal_type=[]) does not return None as expected. This must be fixed properly in generic erp5

bt5/erp5_wendelin/SkinTemplateItem/portal_skins/erp5_wendelin/ERP5Site_createDataAnalysisList.py

@@ -55,7 +55,12 @@ for movement in portal_catalog(query):
       aggregate_set = set()
       # manually add device and device configuration to every line
       aggregate_set.add(movement.getAggregateDevice())
-      aggregate_set.add(movement.getAggregateDeviceConfiguration())
+      # workaround the case that device configuration portal type exists
+      # without this work around aggregate from any portal type
+      # would be returned, because getAggregateValue(portal_type=[]) does not
+      # return  None as expected. This must be fixed properly in generic erp5
+      if portal.getPortalDeviceConfigurationTypeList():
+        aggregate_set.add(movement.getAggregateDeviceConfiguration())
       if transformation_line.getPortalType() == \
           "Data Transformation Resource Line":
         # at the moment, we only check for positive or negative quantity