qor-admin replacing sqlite3 with dummy object - 2nd attempt (worked)

main.go

package main

import (
	"database/sql"
	"fmt"
	"net/http"
	"time"

	"github.com/getlantern/deepcopy"
	"github.com/jinzhu/gorm"
	_ "github.com/jinzhu/gorm/dialects/sqlite"
	"github.com/qor/admin"
	"github.com/qor/qor"
	"github.com/qor/qor/resource"
	"github.com/qor/roles"
)

// Define a GORM-backend model
type User struct {
	gorm.Model
	Email     string
	Password  string
	Name      sql.NullString
	Gender    string
	Role      string
	Addresses string
}

// Define another GORM-backend model
type Product struct {
	// gorm.Model

	ID          uint `gorm:"primary_key"`
	CreatedAt   time.Time
	UpdatedAt   time.Time
	DeletedAt   *time.Time `sql:"index"`
	Name        string
	Description string
}

func main() {
	// Set up the database
	DB, _ := gorm.Open("sqlite3", "demo.db")
	DB.AutoMigrate(&User{}, &Product{})

	// Initalize
	Admin := admin.New(&admin.AdminConfig{
		SiteName: "Admin Panel",
		DB:       DB})

	// Create resources from GORM-backend model
	Admin.AddResource(&User{}, &admin.Config{Menu: []string{"User Management"}})

	p := Admin.AddResource(&Product{})

	p.FindOneHandler = func(result interface{}, metaValues *resource.MetaValues, context *qor.Context) error {
		var product101 Product
		product101.ID = 101
		product101.Name = "phone101"
		product101.Description = "phone101"
		product101.CreatedAt = time.Now()
		product101.UpdatedAt = time.Now()

		res := p
		if res.HasPermission(roles.Read, context) {

			var (
				primaryQuerySQL string
				primaryParams   []interface{}
			)

			if metaValues == nil {
				primaryQuerySQL, primaryParams = res.ToPrimaryQueryParams(context.ResourceID, context)
			} else {
				primaryQuerySQL, primaryParams = res.ToPrimaryQueryParamsFromMetaValue(metaValues, context)
			}
			fmt.Println("ResourceID, primaryParams, primaryQuerySQL: ", context.ResourceID, primaryParams, primaryQuerySQL)

			fmt.Println("1.result, &result: ", result, &result)
			deepcopy.Copy(result, product101) // equal to below code
			// var buf bytes.Buffer
			// json.NewEncoder(&buf).Encode(product101)
			// json.NewDecoder(bytes.NewBuffer(buf.Bytes())).Decode(&result)

			return nil
		}

		return nil
	}

	// Initalize an HTTP request multiplexer
	mux := http.NewServeMux()

	// Mount admin to the mux
	Admin.MountTo("/admin", mux)

	fmt.Println("Listening on: 9000")
	http.ListenAndServe(":9000", mux)
}