Golang RethinkDB ChangeFeed结构

Question

I was wondering if someone could explain how to unmarshal my changefeed cursor value to a specific struct type.

var message map[string]interface{}

for chatFeedCursor.Next(&message) {
    fmt.Println(message)
}

map[new_val:map[club_id:ea2eb6e2-755f-4dad-922d-e3693b6e55c6 date:2017-04-07 14:48:17.714 +0100 +01:00 id:e389ab54-963e-4b33-9b34-adcb6ec5b17e message:what is the meaning of life? user_id:00ff679f-9421-4b8b-ae7f-d11cf2adaee2] old_val:]

However, I would like the response to be mapped to struct ChatMessage.

Update:

I've tried:

var message ChatMessage

However, it doesn't seem like any of my data gets set in the struct.

{ 0001-01-01 00:00:00 +0000 UTC}

My struct:

type ChatMessage struct {
    ID      string        `json:"id" gorethink:"id,omitempty"`
    UserID      string    `json:"user_id" gorethink:"user_id"`
    ClubID      string    `json:"club_id" gorethink:"club_id"`
    Message     string    `json:"message" gorethink:"message"`
    Date    time.Time     `json:"date" gorethink:"date"`
}

Thanks.

Answer 1

I figured it out!

The problem was that I didn't specify a field on the rethinkdb change request.

Previous code:

chatFeedCursor, _ := gorethink.Table("club_chat").Changes().Run(gorethinkSession)

Working Code:

chatFeedCursor, _ := gorethink.Table("club_chat").Changes().Field("new_val").Run(gorethinkSession)

Now the .Next() value maps to my struct with no issues.