sum get_not_assigned_weight when netweight is not none
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@ -415,7 +415,8 @@ class Weighing(Workflow, ModelSQL, ModelView):
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cls.analysis(to_analysis)
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def get_not_assigned_weight(self, name):
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return self.netweight - sum([p.netweight for p in self.parcels])
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if self.netweight:
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return self.netweight - sum([p.netweight or 0 for p in self.parcels])
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@classmethod
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@ModelView.button
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