django - 具有无效排序的 django 查询集不处理异常

Question

虽然使用无效字段订购 django 查询集不会引发任何异常，但这是我的代码

try:
    object_list = Foo.objects.all().order_by('zz')#invalid
except:
    object_list = Foo.objects.all().order_by('-id')#valid

但它不会阻止我如何解决请帮忙？

Answer 1

I tryed your exemple. An invalid order_by raise:

FieldError: Cannot resolve keyword 'zz' into field. Choices are: [...]

How do you see it doesn't go in your except block? if you are looking in database logs, nothing will be loaded until you evaluate your queryset.