Added feature to transfer money to another account + some minor improvements

app/views.py

@@ -50,7 +50,6 @@ def login_page(request):
         "user_list": userlist
     })
 
-
 @login_required
 def index(request):
     context = {
@@ -58,7 +57,6 @@ def index(request):
     }
     return render(request, "index.html", context)
 
-
 @login_required
 def history(request):
     context = {
@@ -66,7 +64,6 @@ def history(request):
     }
     return render(request, "history.html", context)
 
-
 @login_required
 def order(request, drinkid):
     try:
@@ -76,7 +73,6 @@ def order(request, drinkid):
     except Drink.DoesNotExist:
         return HttpResponseRedirect("/")
 
-
 @login_required
 def deposit(request):
     return render(request, "deposit.html", {})
@@ -91,17 +87,19 @@ def statistics(request):
     }
     return render(request, "statistics.html", context)
 
+@login_required
+def transfer(request):
+    userlist = get_user_model().objects.filter(hide_from_userlist=False).filter(is_active=True).order_by("username")
+    return render(request, "transfer.html", {"user_list": userlist})
 
 @login_required
 def supply(request):
     return render(request, "supply.html")
 
-
 @login_required
 def redirect_home(request):
     return HttpResponseRedirect("/")
 
-
 # API for XHR requests #
 
 @login_required
@@ -123,7 +121,6 @@ def api_order_drink(request):
         print(f"An exception occured while processing an order: User: {user.username} - Exception: {e}", file=sys.stderr)
         return HttpResponse(b"", status=500)
 
-
 @login_required
 def api_deposit(request):
     # check request -> deposit
@@ -140,9 +137,38 @@ def api_deposit(request):
             return HttpResponse("success", status=200)
         else: raise Exception("Deposit amount too big or small.")
     except Exception as e:
-        print(f"An exception occured while processing a transaction: User: {user.username} - Exception: {e}", file=sys.stderr)
+        print(f"An exception occured while processing a deposit transaction: User: {user.username} - Exception: {e}", file=sys.stderr)
         return HttpResponse(b"", status=500)
 
+@login_required
+def api_transfer(request):
+    # check request -> transfer
+    user = request.user
+    try:
+        recipient = get_user_model().objects.get(id=int(request.POST["recipientuser"]))
+        if recipient.id == user.id:
+            raise Exception(f"User {user.username} tried to transfer to themself.")
+        amount = decimal.Decimal(request.POST["transferamount"])
+        if 0.00 < amount <= user.balance:
+            print("sender:", user.username)
+            print("recipient:", recipient.username)
+            print("amount:", amount)
+            # create transaction
+            RegisterTransaction.objects.create(
+                transaction_sum=-amount,
+                comment=f"Transfer to {recipient.username}",
+                is_transfer=True,
+                user=user)
+            RegisterTransaction.objects.create(
+                transaction_sum=amount,
+                comment=f"Transfer from {user.username}",
+                is_transfer=True,
+                user=recipient)
+            return HttpResponse("success", status=200)
+        else: raise Exception("Transfer amount too big or small.")
+    except Exception as e:
+        print(f"An exception occured while processing a transfer transaction: User: {user.username} - Exception: {e}", file=sys.stderr)
+        return HttpResponse(b"", status=500)
 
 @login_required
 def api_supply(request):