Hello to all of you,
I have a very strange behavior that I do not understand and that I will try
to explain here:
*Global situation:* School management website.
*Expected comportment:* User show student amout: 10. User Add 5, return to
app, pull down to refresh and see 15.
*Actual comportment:* User show student amout: 10. User Add 5, return to
app, pull down to refresh and see 10.
*Fix:* I change only on char in my code (even a space, a letter, a tab or
anything else), the manage.py runserver reload, i pull down to refresh and
see 15.
If i put the code of the function that calculate the total amount direct in
the method user in the request, all is good. :/
Totaly incomprehensible :s
*Details:*
- I have 2 applications: One manages students, another manages payments for
them.
- In my payment model, I have this function :
class Payment(SoftDeleteObject, models.Model):
amount = models.FloatField()
...
@staticmethod
def get_total_payments(wallet_reference=False,
date=timezone.datetime.now()):
""""
Get total payment from wallet reference and from a date
@param wallet_reference:
@param date:
@return:
"""
payments = Payment.objects.filter(
Q(wallet_reference=wallet_reference),
Q(payment_date__lte=date),
Q(status=PAYMENT_STATUS['SUCCEEDED'])
)
total_payment = 0
for payment in payments:
total_payment += payment.amount
return total_payment
- In my payment application, I use this function when I make a request to
find the total available, the total consumed, etc... like this:
class ListStudentPayment(generics.GenericAPIView):
def get(self, *args, **kwargs):
today = timezone.now().date()
student = Student.objects.get(pk=kwargs['student_id'])
....
total_payment = Payment.get_total_payments(student.wallet_reference)
- This function is called right after a stripe payment, to refresh my
student's balance in the application.
Do you have an explaination ?
Thanks.
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