使用MongoEngine排序? [英] Sort using MongoEngine?

问题描述

如何像在常规mongodb查询中那样在MongoEngine中对查询对象进行排序?

How do I sort the query objects in MongoEngine, like I would in a regular mongodb query?

http://www.mongodb.org/display/DOCS/排序+和+自然+顺序

推荐答案

Mongoengine受到Django ORM的启发，与Django一样，它使用-"(以表示降序排列，即从高到低的顺序).

Mongoengine is inspired by Django's ORM, and like Django, it uses order_by to sort the result set. order_by takes a variable number of string arguments, which are the field names (as defined in your documents) optionally preceded by a "-" (to indicate a descending sort, i.e. highest first).

例如:

class Person(Document):
    first_name = StringField()
    last_name = StringField()
    age = IntField()

# later
people = Person.objects.order_by('last_name', '-age')

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