added authorupdateview

bookshelf/views.py

@@ -70,3 +70,9 @@ class AuthorDetailView(generic.DetailView):
 
 class AuthorUpdateView(generic.UpdateView):
     model = Author
+    fields = '__all__'
+    template_name = 'bookshelf/edit-author.html'
+
+    def get_success_url(self):
+        return reverse('bookshelf:authordetailview', kwargs={'pk': self.object.id},
+                       current_app=self.request.resolver_match.namespace)