def invitation_retrieve(request, response_format='html'):
"Retrieve invitation and create account"
if request.user.username:
return HttpResponseRedirect('/')
email = request.REQUEST.get('email')
key = request.REQUEST.get('key')
if email and key:
try:
invitation = Invitation.objects.get(email=email, key=key)
except:
raise Http404
else:
raise Http404
if request.POST:
form = InvitationForm(invitation, request.POST)
if form.is_valid():
profile = form.save()
username = profile.user.username
password = form.cleaned_data['password']
user = authenticate(username=username, password=password)
if user:
invitation.delete()
login(request, user)
return HttpResponseRedirect('/')
else:
form = InvitationForm(invitation)
return render_to_response('core/invitation_retrieve',
{'invitation': invitation,
'form': form},
context_instance=RequestContext(request),
response_format=response_format)
