>>> Entry.objects.order_by(Coalesce('summary', 'headline').desc()) Traceback (most recent call last): File "<console>", line 1, in <module> NameError: name 'Coalesce' is not defined 博主您好，为什么我这里的Console没定义？
>>> Entry.objects.order_by(Coalesce('summary', 'headline').desc()) Traceback (most recent call last): File "<console>", line 1, in <module> NameError: name 'Coalesce' is not defined 博主您好，为什么我这里的Console没定义？