reset sorting positions

resort.go

package main

import (
	"reflect"

	"github.com/qor/qor-example/app/models"

	"github.com/jinzhu/gorm"
	"github.com/qor/qor-example/db"
)

func Resort(db *gorm.DB, results interface{}) {
	db.Find(results)

	reflectValue := reflect.Indirect(reflect.ValueOf(results))
	for i := 0; i < reflectValue.Len(); i++ {
		db.Model(reflectValue.Index(i).Addr().Interface()).UpdateColumn("position", i+1)
	}
}

func main() {
	DB := db.DB.Set("l10n:mode", "locale")

	for _, locale := range []string{"en-US", "zh-CN"} {
		var categories []models.Category
		Resort(DB.Set("l10n:locale", locale), &categories)
	}
}