Add part 4f, make it redirect and count

README.md

@@ -107,3 +107,6 @@ Edit `urlapp/views.py`.
 
 Higher-level URLs.
 Edit `urlapp/templates/index.html`.
+
+Make it redirect and count!
+Edit `urlapp/views.py`.

urlapp/views.py

-from django.shortcuts import render, get_object_or_404
+from django.shortcuts import render, get_object_or_404, redirect
 from django.http import HttpResponse
 
 from .models import Url
@@ -12,7 +12,10 @@ def index(request):
     return render(request, 'index.html', context)
 
 def redir(request, url_id):
-    return HttpResponse("You're following URL {}.".format(url_id))
+    u = get_object_or_404(Url, id=url_id)
+    u.used += 1
+    u.save()
+    return redirect(u.target)
 
 def url(request, url_id):
     context = {