При работе на Golang Пн go Драйвер, я застрял с этим странным beahviour использовать inline
Похоже, bson:",inline"
не работает с Embedded Structs
.
Не в состоянии понять, почему такое поведение?
inline Inline the field, which must be a struct or a map,
causing all of its fields or keys to be processed as if
they were part of the outer struct. For maps, keys must
not conflict with the bson keys of other struct fields.
import (
"context"
"encoding/json"
"fmt"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/primitive"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
//Expected Output
//{
// "ID": "5e6e96cb3cfd3c0447d3e368",
// "product_id": "5996",
// "Others": {
// "some": "value"
// }
//}
//Actual Output
//{
// "ID": "5e6e96cb3cfd3c0447d3e368",
// "product_id": "5996"
//}
type Product struct {
ID primitive.ObjectID `bson:"_id"`
ProductId string `bson:"product_id" json:"product_id"`
*SchemalessDocument
}
type SchemalessDocument struct {
Others bson.M `bson:",inline"`
}
func main() {
clientOptions := options.ClientOptions{
Hosts: []string{"localhost"},
}
client, _ = mongo.NewClient(&clientOptions)
client.Connect(context.TODO())
var p Product
collection := client.Database("Database").Collection("collection")
query := bson.D{{"product_id", "5996"}}
_ = collection.FindOne(context.TODO(), query).Decode(&p)
jsonResp, _ := json.Marshal(p)
fmt.Println(string(jsonResp))
}
Но тот же код работает, если я изменяю
type Product struct {
ID primitive.ObjectID `bson:"_id"`
ProductId string `bson:"product_id" json:"product_id"`
Others bson.M `bson:",inline"`
}