How do I sum a column in the invoice line module

Question

Hello

I am trying to sum a column in the invoice line module in a field on the invoice module.  I have tried the following formula

for record in self:
record['x_studio_field_8kUMr']=(record.x_studio_field_zJdWj).sum()

I am getting an error saying the x_studio_field_zjdWj is not found.   I assume that the error is due to the field I want to sum is not in the same module as the computed field.  Is there a way to compute the sum of the column in question?

Hilar Andikkadavath · Accepted Answer

you can give attribute
sum= "Total"
on XML field.
eg:
<field  name= "amount"  sum= "Amount" />  the sum will be shown in the footer of the tree view

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