require login to access contribution wizard

Former-commit-id: f20277fa812fe898f4dbe7c6b9975b65d6ba0c8f

ippisite/ippidb/views.py

@@ -6,6 +6,7 @@ from django.db.models import Max, Min, Count
 from django.shortcuts import render
 from django.http import HttpResponseRedirect, Http404
 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
+from django.contrib.auth.mixins import LoginRequiredMixin
 from formtools.wizard.views import SessionWizardView, NamedUrlSessionWizardView
 
 import ippidb
@@ -57,7 +58,7 @@ TEMPLATES = {"IdForm": "IdForm.html",
              }
 
 
-class IppiWizard(NamedUrlSessionWizardView):
+class IppiWizard(LoginRequiredMixin, NamedUrlSessionWizardView):
   
     def get_context_data(self, **kwargs):
         context=super(IppiWizard, self).get_context_data(**kwargs)