dsvyc66464
dsvyc66464
2018-10-06 23:52
浏览 325

使用struct&mongodb / mongo-go-driver更新/替换mongodb文档

I am trying to update/replace a mongodb document using a struct but i keep on getting err: update document must contain key beginning with '$'

collection := r.client.Database(database).Collection(greetingCollection)
payment.MongoID = objectid.New()
filter := bson.NewDocument(bson.EC.String("id", payment.ID))
_, err := collection.UpdateOne(ctx, filter, payment)
return err
  • 点赞
  • 写回答
  • 关注问题
  • 收藏
  • 邀请回答

1条回答 默认 最新

  • dqls67891
    dqls67891 2018-10-07 12:08
    已采纳

    You should provide an update statement instead of a document as third parameter to the Collection.UpdateOne method. For example:

    update := bson.NewDocument(
        bson.EC.SubDocumentFromElements(
            "$set",
            bson.EC.Double("pi", 3.14159),
        ),
    )
    collection.UpdateOne(ctx, filter, update)
    

    See more on the available update operators in the MongoDB docs (the keys beginnen with '$').

    点赞 评论

相关推荐