Check authenticated user on save, prepare for suggestions

trans/views.py

@@ -64,9 +64,15 @@ def translate(request, project, subproject, lang):
             obj.check_sync()
             try:
                 unit = Unit.objects.get(checksum = form.cleaned_data['checksum'], translation = obj)
-                unit.target = form.cleaned_data['target']
-                unit.fuzzy = form.cleaned_data['fuzzy']
-                unit.save_backend(request)
+                if 'suggest' in request.POST:
+                    # FIXME: implement suggestions
+                    pass
+                elif not request.user.is_authenticated():
+                    messages.add_message(request, messages.ERROR, _('You need to login to be able to save translations!'))
+                else:
+                    unit.target = form.cleaned_data['target']
+                    unit.fuzzy = form.cleaned_data['fuzzy']
+                    unit.save_backend(request)
 
                 # Check and save
                 return HttpResponseRedirect('%s?type=%s&oldpos=%d' % (obj.get_translate_url(), rqtype, pos))