動画を確認画面つきで複数削除できるようにする（ステップ13）

internal/store/store.go

@@ -201,6 +201,39 @@ func (s *Store) ListSucceededJobsBySeries(ctx context.Context, seriesID string)
 	return jobs, rows.Err()
 }
 
+func (s *Store) ListSucceededJobsByIDs(ctx context.Context, ids []int64) ([]Job, error) {
+	if len(ids) == 0 {
+		return []Job{}, nil
+	}
+	return s.listSucceededJobs(ctx, `id = ANY($1)`, ids)
+}
+
+func (s *Store) ListSucceededJobsBySeriesIDs(ctx context.Context, seriesIDs []string) ([]Job, error) {
+	if len(seriesIDs) == 0 {
+		return []Job{}, nil
+	}
+	return s.listSucceededJobs(ctx, `series_id = ANY($1)`, seriesIDs)
+}
+
+func (s *Store) listSucceededJobs(ctx context.Context, condition string, value any) ([]Job, error) {
+	rows, err := s.pool.Query(ctx, `SELECT `+jobColumns+` FROM download_jobs
+		WHERE status='succeeded' AND `+condition+`
+		ORDER BY id`, value)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var jobs []Job
+	for rows.Next() {
+		job, err := scanJob(rows)
+		if err != nil {
+			return nil, err
+		}
+		jobs = append(jobs, job)
+	}
+	return jobs, rows.Err()
+}
+
 func (s *Store) DeleteSucceededJob(ctx context.Context, id int64) error {
 	tag, err := s.pool.Exec(ctx, `DELETE FROM download_jobs WHERE id=$1 AND status='succeeded'`, id)
 	return transitionResult(tag.RowsAffected(), err)