yokoe/gorm-snippets

func batchFindBookByID(db *gorm.DB, idSlice []int) ([]*model.Book, error) {
    if len(idSlice) == 0 {
        return nil, nil
    }
    var objects []*model.Book
    if err := db.Find(&objects, "id in (?)", idSlice).Error; err != nil {
        return nil, xerrors.Errorf("failed to find model.Book by id slice %v: %w", idSlice, err)
    }
    return objects, nil
}