yokoe/gorm-snippets

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