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[Django]複数のslug(キー)でSingleObjectMixinを継承したDetailViewやUpdateViewを使う方法

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そのままのクラスだと無理なので、get_object()をオーバーライドして、オブジェクトを返せばいい。

def get_object(self, queryset=None):
  if queryset is None:
    queryset = self.get_queryset()

  try:
    obj = queryset.filter(hoge=self.kwargs['hoge'],piyo=self.kwargs['piyo']).get()
  except queryset.model.DoesNotExist:
    raise Http404(_("No %(verbose_name)s found matching the query") %
                  {'verbose_name': queryset.model._meta.verbose_name})
  return obj
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