"unsupported operand type(s) for -: 'bool' and 'datetime.date'" error with my custom studio field

Question

ValueError: : "unsupported operand type(s) for -: 'bool' and 'datetime.date'" while evaluating
"for record in self:
 record['x_studio_number_of_days'] = record.x_studio_end_date - record.x_studio_start_date
" How can I fix this

Eyad Al · Accepted Answer

I got it
for record in self:
if record.x_studio_end_date and record.x_studio_start_date:
record['x_studio_number_of_days'] = (record.x_studio_end_date - record.x_studio_start_date).days

Niyas Raphy (Walnut Software Solutions) · Answer

Hi,
Seems one of the fields is coming as empty, thus you get this error. In order to overcome the error add if condition and make sure that both the field contains value before subtracting them.
for record in self:
if record.x_studio_end_date and record.x_studio_start_date:
record['x_studio_number_of_days'] = record.x_studio_end_date - record.x_studio_start_date

Thanks

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