python操作mongodb 查詢、更新
阿新 • • 發佈:2018-12-24
我有這樣一個嵌入式文件(python 操作mongoEngine)
class price2(EmbeddedDocument):
name = StringField(required=True)
market = StringField(required=True)
date = StringField(required=True)
average = StringField(required=True)
week_price = StringField(default=None)
class price1(Document):
price = EmbeddedDocumentField(price2)
我現在需要通過
name = StringField(required=True)
market = StringField(required=True)
date = StringField(required=True)
average = StringField(required=True)
中任意一個欄位(或者其它方法)查詢以及更新,資料庫裡的資料格式如下:
{
"_id" : ObjectId("59a63fdfac7a4f1740cdbed0" ),
"price" : {
"name" : "白菜",
"market" : "成都市...",
"date" : "2017-08-30",
"average" : "4.00元/公斤",
"week_price" : ""
}
}
各位大神,求幫助啊,謝謝
注:剛開始準備將所有查詢、更新等操作封裝在一個類裡,沒找到解決辦法,不得已改為一下方法:
cate = price2(price_name=name,price_market=market)
result = price1.object.filter(price=cate)
price 是price1中的price欄位
查詢結果轉換成字典:user = User.objects.filter(raw={‘username’: ‘tm’}).first().to_mongo()
MongoDB配置成本地服務:
1、mongo.log
2、mongo.config:
dbpath=D:\mongodb\data\db
logpath=D:\mongodb\log\mongo.log
3、管理員方式啟動命令列(到mongodb 的bin目錄下):
mongod –config D:\mongodb\mongo.config –install –serviceName “MongoDB” –journal
ps:–是兩條英文“-”