Object（Interface{}）字段Query结果返回Slice/Array

[chengkun-kang]

MongoDB 6.0.4 Community Edition

main.go

package main

import (
	"context"
	"fmt"
	"time"

	"github.com/qiniu/qmgo"
	"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"
)

type User struct {
	Id       primitive.ObjectID `bson:"_id,omitempty"`
	Identity string             `bson:"Identity,omitempty"`
	Name     string             `bson:"Name,omitempty"`
	Age      int                `bson:"Age,omitempty"`
}

type Log struct {
	Id         primitive.ObjectID `bson:"_id,omitempty"`
	CreatedAt  time.Time          `bson:"CreatedAt,omitempty"`
	CreatedBy  string             `bson:"CreatedBy,omitempty"`
	ModelValue interface{}        `bson:"ModelValue,omitempty"`
}

func main() {
	results := []*Log{}

	user := new(User)
	user.Id = primitive.NewObjectID()
	user.Identity = "E00000001"
	user.Name = "test user"

	log := new(Log)
	log.CreatedAt = time.Now()
	log.ModelValue = user
	log.CreatedBy = "E00000SYS"

	ctx := context.Background()
	client, err := qmgo.NewClient(ctx, &qmgo.Config{Uri: "mongodb://localhost:27018"})
	if err != nil {
		fmt.Println("Create client failed: ", err)
	}

	collection := client.Database("mongo_test").Collection("Log")
	_, err = collection.InsertOne(ctx, log)
	if err != nil {
		fmt.Printf("Create document with error: %v\n", err)
	}

	collection.Find(context.Background(), bson.M{}).All(&results)
	for _, v := range results {
		fmt.Println(v.ModelValue)
	}
}

Document in mongo db:

Query ModelValue field result:

Q：
怎样ModelValue可以返回bson.M (map[string]interface{})而不是bson.D ([]bson.E)?

谢谢！

[jiangz222]

这个是mongodb官方行为，qmgo暂时不会改变这个行为