Python Pymongo 多更新查询

Pymongo multi update query

提问by user2950162

I have the following query

我有以下查询

DB_HOST = '127.0.0.1'
COLLECTION = 'scraper'
db = pymongo.MongoClient(DB_HOST)[COLLECTION]['scrap']
db.update({'indice':0, 'thread_id':{'$in':list_to_update}},{'updated':'yes'}, multi=True)

where list_to_update is a list of thread_ids where I would like to insert the field 'updated' to 'yes'

其中 list_to_update 是 thread_ids 列表，我想在其中插入字段“已更新”为“是”

I am receiving the following error

我收到以下错误

pymongo.errors.OperationFailure: multi update only works with $ operators

Any ideas?

有任何想法吗？

采纳答案by vaultah

Use the $setoperator:

使用$set运算符：

db.update({'indice':0, 'thread_id': {'$in': list_to_update}},
          {'$set': {'updated':'yes'}}, 
          multi=True)

回答by hamed

from pymongo 3.1 use update_many:

从 pymongo 3.1 使用update_many：

xxx.update_many({'indice':0, 'thread_id': {'$in': list_to_update}}, {'$set': {'updated':'yes'}})

you can pass upsert=Falseif you dont need upsert. Link to documentation: here

upsert=False如果您不需要upsert，您可以通过。文档链接： 这里