difference between dates in field added to model

Question

Hi: I want to find the difference between two dates ("project.task" model fields like "repeat_until" and "date_deadline", because subtracting the two dates doesn't work and using .days doesn't work.
Somebody help me. This is when we add a field in a model and I add validations to it.

Thanks

Midhun M M · Accepted Answer

explanation with an example
from datetime import datetime
fmt = '%Y-%m-%d'
from_date = '2013-09-01'   -> Take your date field1
to_date = '2013-09-31'    -> Take your date field2
d1 = datetime.strptime(from_date, fmt)
d2 = datetime.strptime(to_date, fmt)
daysDiff = str((d2-d1).days)     -> will gives you 29 days
daysDiff = str((d2-d1).days + 1)   -> will gives you 30 days
Hope it helps you ........ Thanks

Begineer · Answer

Hello,
Can you be more specific..? Doesn't work in the sense? Please post your fields defined in your model and your code which doesn't work.

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