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Eyad Al 

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


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Niyas Raphy (Walnut Software Solutions)
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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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Eyad Al
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I got error

ValueError: <class 'TypeError'>: "float() argument must be a string or a number, not 'datetime.timedelta'" while evaluating

"for record in self:\n if record.x_studio_end_date and record.x_studio_start_date:\n record['x_studio_number_of_days'] = record.x_studio_end_date - record.x_studio_start_date\n"