[Answered ]-Django: Update or Change previous saved model data

by

2👍

✅

I think you should refactor your code. As per your implementation, I believe name field for `DirectReferral’ will be unique.

ref_user = User.objects.get(
username=form.cleaned_data['referrer']
)

user = User.objects.create_user(
username=form.cleaned_data['username']
)

# Count the referrer's direct referrals
ref_recruits = DirectReferral.objects.filter(referrer=ref_user).count()

# Get newly created direct referral
get_ref = DirectReferral.objects.get(name=user)

#Check if ref_recruits is not divisible by 2 or paired
if ref_recruits % 2 == 0:
    get_ref.is_paired = True
    DirectReferral.objects.filter(referrer=ref_user, is_paired=False).update(is_paired=True)
else:
    get_ref.is_paired = False
get_ref.save()
👤Nazif Naz

0👍

You need to order your DirectReferral objects somehow so they are returned in correct order, i.e. the last added one is the first one in a DirectReferral objects list, then you can easily change the second object in a list, which is in your situation a previous one.

For example: 

get_refs = DirectReferral.objects.filter(referrer=ref_user).ordery_by('-timestamp')

if ref_recruits % 2 != 0:
    get_refs[0].is_paired = False
    get_refs[0].save()

else:
    get_refs[0].is_paired = True
    get_refs[1].is_paired = True
    get_refs[0].save()
    get_refs[1].save()
👤sehrob

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