本文介绍了我可以从Django ORM查询中删除ORDER BY吗?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
似乎Django默认情况下在查询中添加了 ORDER BY
。我可以清除它吗?
It seems like Django by default adds ORDER BY
to queries. Can I clear it?
from slowstagram.models import InstagramMedia
print InstagramMedia.objects.filter().query
SELECT
`slowstagram_instagrammedia`.`id`,
`slowstagram_instagrammedia`.`user_id`,
`slowstagram_instagrammedia`.`image_url`,
`slowstagram_instagrammedia`.`video_url`,
`slowstagram_instagrammedia`.`created_time`,
`slowstagram_instagrammedia`.`caption`,
`slowstagram_instagrammedia`.`filter`,
`slowstagram_instagrammedia`.`link`,
`slowstagram_instagrammedia`.`attribution_id`,
`slowstagram_instagrammedia`.`likes_count`,
`slowstagram_instagrammedia`.`type`
FROM
`slowstagram_instagrammedia`
ORDER BY
`slowstagram_instagrammedia`.`id`
ASC
```
推荐答案
您可以se:查询中的方法
You can use: clear_ordering
method from query
"""Removes any ordering settings.
If 'force_empty' is True, there will be no ordering in the resulting
query (not even the model's default).
"""
示例:
>>> from products.models import Product
>>> products = Product.objects.filter(shortdesc='falda').order_by('id')
>>> print products.query
SELECT "products_product"."id", "products_product"."shortdesc"
WHERE "products_product"."shortdesc" = falda
ORDER BY "products_product"."id" ASC
>>> products.query.clear_ordering()
>>> print products.query
SELECT "products_product"."id", "products_product"."shortdesc"
WHERE "products_product"."shortdesc" = falda
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