[Django]-How do I compare dates in Django?

by

6👍

✅

Subtracting two datetime objects in Python gives you a timedelta object, which you can’t compare to an integer. You can, however, get something like total_seconds() from it to see if it’s nonzero.

>>> now = datetime.datetime.now()
# wait 3 seconds
>>> now2 = datetime.datetime.now()
>>> td = now2 - now
>>> td.total_seconds()
3.266

So in your case, the code would look something like (untested):

def is_due_today(self):
    dd = self.due_date
    delta = dd - datetime.date.today()
    return delta.total_seconds() > 0
👤Daniel DiPaolo

2👍

today should be:

today = datetime.date.today()

Subtracting two datetime date objects gives you a timedelta. 

>>> a - datetime.date.today()
datetime.timedelta(0)
>>> a = datetime.date.today()
>>> a - a
datetime.timedelta(0)
>>> a - a == 0
False
>>> 
>>> a - a == datetime.timedelta(0)
True

Also, if you are checking if something is due today, your conditional statement might need to be changed:

today - today isn't going to be > 0

If you are checking for past due:

return self.due_date < datetime.date.today()

Checking for due today:

return self.due_date == datetime.date.today()
👤dting

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