SolverProcess: Fix updateLocalRolesOnSecurityGroups

product/ERP5/Document/SolverProcess.py

@@ -317,7 +317,10 @@ class SolverProcess(XMLObject, ActiveProcess):
     """Update roles and add groups defined on related delivery
     """
     super(SolverProcess, self).updateLocalRolesOnSecurityGroups(**kw)
-    delivery_value = self["1"]  # XXX big hardcode !
+    child_list = self.objectValues()
+    if not child_list:
+      return
+    delivery_value = child_list[0]
     if delivery_value is not None:
       delivery_value = delivery_value.getDeliveryValue()  # Simulation
     if delivery_value is not None: