Order_by on the basis of time difference:

[Aadil Rashid]

class UserModel(models.Model):

is_active = models.BooleanField(default=True)

created_at = models.DateTimeField(auto_now_add=True)

updated_at = models.DateTimeField(auto_now=True)

I want to query on UserModel such that the Query set which I get should be orderable in terms of time difference of updated_at - created_at,

I tried

UserModel.objects.all().order_by('updated_at' - 'created_at')
but this is not working
it throws, TypeError: unsupported operand type(s) for -: 'str' and 'str'

Please help

[Erlan Abdraimov]

i can user django user 

Aadil Rashid <aadil1...@gmail.com>, 21 Oca 2022 Cum, 07:35 tarihinde şunu yazdı:

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