def to_timestamp(value):
"""
Return URL safe base62 encoded timestamp of given datetime.
Args:
value (datetime.datetime): Datetime instance to encode.
Returns:
str: URL safe base62 encoded timestamp.
"""
if value is None:
return ""
return signing.b62_encode(int(value.timestamp()))
def test_base62(self):
tests = [-10**10, 10**10, 1620378259, *range(-100, 100)]
for i in tests:
self.assertEqual(i, signing.b62_decode(signing.b62_encode(i)))
def _make_hash_value(self, user):
last_login = self.to_timestamp(user.last_login)
user_pk = signing.b62_encode(user.pk)
return self.sep.join((user_pk, last_login))