[collector view] emit warning log when a Teil aready existed

collector/views.py

@@ -1,9 +1,14 @@
+import logging
+
 from django.http import HttpRequest, HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404, render
 from django.urls import reverse
 
+
 from .models import Teil
 
+logger = logging.getLogger(__name__)
+
 
 def index(request: HttpRequest) -> HttpResponse:
     teile_list = Teil.objects.order_by("-modified")[:10]
@@ -27,6 +32,6 @@ def enter(request: HttpRequest) -> HttpResponse:
     try:
         Teil.objects.create(name=request.POST["new_name"])
     except Exception:
-        pass
+        logger.warning("Teil already existed")
 
     return HttpResponseRedirect(reverse("collector:index"))