在使用pymongo在mongodb中使用upsert将查询更新为true后，如何返回记录字段？

Question

I am trying to to insert record in mongodb but I dont want duplication so I am using update command with upsert=true

import pymongo
client = pymongo.MongoClient(settings.MONGO_DB_URI)
db = self.client[settings.MONGO_DB_NAME]
filter = {
    'my_id': '1234',
    'name': 'alok'
}
record = {
    'my_id': '1234',
    'name': 'alok',
    'marks': 26
}
status = db['mycollection'].update(filter, {'$setOnInsert': record}, upsert=True)  
print('id is ', status['my_id']) # this will not work but I want such behaviour

This code will insert record only if there is no existing record with matching filter values. So there are two case:
It will insert record
It will not insert record if already exist
In both the case I want to get my_id . How can I get my_id when update command execute?

Answer 1

您可以搜索文档，然后打印出其ID

print('id is ', db['mycollection'].find_one(filter)['my_id'])