def checkout(request):
cart = []
if request.POST:
cj = request.POST.get("cart")
else:
cj = request.GET.get("cart")
# Open cash drawer
fail = False
for f in json.loads(cj):
try:
product = Product.objects.get(pk=f['id'])
if f['num'] > product.stocked:
fail = True
cart.append({
'product': product,
'amount': f['num'],
'price': f['num'] * product.price,
})
except Product.DoesNotExist:
continue
if request.POST:
purchase = Purchase()
purchase.salesperson = request.user
purchase.total = sum([i['product'].price * i['amount'] for i in cart])
purchase.save()
for i in cart:
i['product'].stocked -= i['amount']
i['product'].save()
ProductPurchase.objects.create(
purchase=purchase,
product=i['product'],
amount=i['amount'])
template = loader.get_template('cashdesk/bon.txt')
context = RequestContext(
request,
{
'purchase': purchase,
'productpurchases': ProductPurchase.objects.filter(
purchase=purchase),
}
)
bon = template.render(context)
printer.print_and_cut(
request.session['printer'],
bon, True)
return HttpResponseRedirect("/")
ctx = {
'cart': cart,
'fail': fail,
'cartjson': request.GET.get("cart"),
'total': sum([i['product'].price * i['amount'] for i in cart]),
}
return render(request, 'cashdesk/checkout.html', ctx)
def update_order(purchase_id):
# -------------------------
# Update data of order
# -------------------------
if request.form.get('_method') != 'PUT':
app.logger.Info(
'Cannot perform this action. Please contact administrator')
abort(405)
purchase = Purchase(id=purchase_id)
try:
purchase = purchase.list_one_or_none_purchase()
if purchase_id is None:
app.logger.info(
f'No data with Purchase ID =\
{purchase_id} could be found!')
abort(422)
except BaseException:
app.logger.info(
f'An error occurred. No data with Purchase ID\
= {purchase_id} could be found!')
abort(422)
purchase.id = purchase_id
product_name = request.form.get('product')
purchase.quantity = request.form.get('quantity', purchase.quantity)
customer_name = request.form.get('customer_id')
purchase.purchase_date = request.form.get(
'purchase_date', purchase.purchase_date)
purchase.total = request.form.get('total', purchase.total)
product = Product.query.filter(
Product.name == product_name).one_or_none()
customer = Customer.query.filter(
Customer.name == customer_name).one_or_none()
purchase.product_id = product.product_id
purchase.customer_id = customer.customer_id
try:
purchase.update_purchase_in_database()
flash(
f'Purchase {purchase_id} was successfully updated!',
'success')
except BaseException:
app.log.info(f'An error occurred. Purchase {purchase_id} \
could not be updated!')
abort(422)
return redirect(url_for('purchases'))
