python - Mongoengine query set to list conversion

Question

As in django with sql backend we can convert a queryset into flat list by

foovar.objects.all().values_list('id', flat=true)

give a list of ids

How to get list of ids in mongo backend ,ORM being used is mongoengine in which values_list function has no flat parameter.

Answer 1

你是对的，没有flat参数values_list。但是 mongoengine 有values_list. 所以简单地说：

foovar.objects.all().values_list('id')

返回 foovar 模型的所有 id。