Reflect tag and mgo (mongo driver) - handle object id

[bsr]

Hello,

I want to set (during query) a field (ID) of my struct to mongodb object id (_id). I also insert this struct in DB from xml. To avoid setting empty string as object id, I added the reflect tag `xml:"-"`. 

As seen below in both cases the results are not what I desire.

Field1: ID bson.ObjectId `xml:"-" "_id"`

{

   "_id": ObjectId("4fe92c4beaf9553e4d114af6"),

   "id": "",

   "headerlevel": {

Field 2: ID bson.ObjectId `xml:"-" bson:"_id"`

 {

   "_id": "",

   "headerlevel": {

Desired behavior is

1. mgo insert objectid while insert

2. Populate the ID field with _id during query.

I assume the format of tag is correct according to http://code.google.com/p/go/source/detail?r=1dd08cd96bc3b32246b14f6cc58f0c53bf393f51

thanks.

[Gustavo Niemeyer]

On Mon, Jun 25, 2012 at 8:39 PM, bsr <bsr...@gmail.com> wrote:
> As seen below in both cases the results are not what I desire.
>
> Field1: ID bson.ObjectId `xml:"-" "_id"`

I suspect you want this:

ID bson.ObjectId `bson:"_id,omitempty"`


gustavo @ http://niemeyer.net

[bsr]

Indeed.. thanks