views.py 文件源码

def post(self, request, pk, **kwargs):
        instance = CognateClassCitation.objects.get(id=pk)
        form = EditCognateClassCitationForm(request.POST, instance=instance)
        try:
            # validate {ref foo ...}
            s = Source.objects.all().filter(deprecated=False)
            pattern = re.compile(r'(\{ref +([^\{]+?)(:[^\{]+?)? *\})')
            for m in re.finditer(pattern, form.data['comment']):
                foundSet = s.filter(shorthand=m.group(2))
                if not foundSet.count() == 1:
                    raise ValidationError('In field “Comment” source shorthand “%(name)s” is unknown.', 
                                                params={'name': m.group(2)})
            form.save()
        except ValidationError as e:
            messages.error(
                request,
                'Sorry, the server had problems updating the cognate citation. %s' % e)
            return self.render_to_response({"form": form})
        return HttpResponseRedirect(reverse('cognate-class-citation-detail', args=[pk]))