官方提供的範例為

// batch size 100
result := db.Where("processed = ?", false).FindInBatches(&results, 100, func(tx *gorm.DB, batch int) error {
  for _, result := range results {
    // batch processing found records
  }

  tx.Save(&results)

  tx.RowsAffected // number of records in this batch

  batch // Batch 1, 2, 3

  // returns error will stop future batches
  return nil
})

result.Error // returned error
result.RowsAffected // processed records count in all batches

我的程式如下

type error interface {
	Error() string
}
// Ssldomainlist [...]
type Ssldomainlist struct {
	Domain string `gorm:"primary_key;column:domain;type:varchar(80);not null" json:"Domain"`
	TaxID  string `gorm:"column:taxID;type:varchar(8);not null" json:"tax_id"`
	Status int    `gorm:"column:status;type:int;not null" json:"status"`
}

func main() {
	dsn := "user:password@tcp(127.0.0.1:3306)/db?charset=utf8mb4&parseTime=True&loc=Local"
	db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{})
	if err != nil {
		fmt.Println("連線失敗")
	}
	sqlDB, err := db.DB()
	if err != nil {
		fmt.Println("取得DB失敗")
	}
	sqlDB.SetMaxIdleConns(10)
	sqlDB.SetMaxOpenConns(150)
	sqlDB.SetConnMaxLifetime(time.Hour)
	// batch size 100
	var Ssldomainlist []Ssldomainlist
	count := 0
	result := db.Where("status = ?", 1).FindInBatches(&Ssldomainlist, 100, batchProcesser(db, count))

}
func batchProcesser(tx *gorm.DB, batch int) error {
	return nil
}

錯誤顯示為cannot use batchProcesser(db, count) (type error) as type func(*gorm.DB, int) error in argument to db.Where("status = ?", 1).FindInBatches
請問有人可以給予意見嗎？

後來實證官方src有問題，已經遞交PR