def transferProcess(request):
data = json.loads(request.body)
ref_id = data['ref_id']
date = data['date']
new_warehouse = data['new_warehouse']
lines = data['lines']
myUsername = request.session.get('username')
user = User.objects.get(username=myUsername)
if user.branch.transfer.filter(ref_id=ref_id).exists():
tr = user.branch.transfer.latest('pk')
listed_ref_id = tr.ref_id.split('-')
listed_date = str(now.today()).split('-')
current_code = int(listed_ref_id[3])
if listed_ref_id[1] == listed_date[0] and listed_ref_id[2] == listed_date[1]:
current_code += 1
ref_id = 'T-{}-{}-{}'.format(listed_date[0], listed_date[1], str(current_code).zfill(4))
tr = Transfer()
tr.ref_id = ref_id
tr.date = date
tr.warehouse = Warehouse.objects.get(pk=new_warehouse)
tr.approved = False
tr.created_by = User.objects.get(username=myUsername)
tr.save()
user.branch.transfer.add(tr)
for line in lines:
ti = Transfer_Item()
ti.product = Product.objects.get(pk=int(line['code']))
ti.transfer = tr
ti.remaining = int(line['remaining'])
ti.transfer_quantity = int(line['quantity'])
ti.save()
sweetify.sweetalert(request, icon='success', title='Success!', persistent='Dismiss')
return JsonResponse(0, safe=0)
def transfer_funds(from_wallet, to_wallet, amount, comment):
if from_wallet is not None:
if from_wallet.balance < amount:
raise BillingException('Not enough funds')
if to_wallet is None:
raise BillingException('Receiver cannot be null')
if comment is None or comment == '':
raise BillingException('Missing comment')
try:
amount = int(amount)
except:
raise BillingException('Incorrect transfer amount')
if amount < 0:
raise BillingException('Cannot transfer negative funds')
try:
with transaction.atomic():
transfer = Transfer()
transfer.amount = amount
transfer.comment = comment
transfer.sender = from_wallet
transfer.receiver = to_wallet
transfer.save()
if from_wallet is not None:
from_wallet.balance -= amount
from_wallet.save()
to_wallet.balance += amount
to_wallet.save()
except IntegrityError as e:
raise BillingException('Transaction integrity error: {}'.format(e))
return True