Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.3k views
in Technique[技术] by (71.8m points)

mongodb - Sort using MongoEngine?

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

http://www.mongodb.org/display/DOCS/Sorting+and+Natural+Order

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

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).

For example:

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

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

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...