fix: Bug where renaming the main folder did not update db path

settings where the ones of the previous folder.

internal/qso/qso.go

@@ -651,6 +651,25 @@ func (r *Repo) DeleteAll(ctx context.Context) (int64, error) {
 	return n, nil
 }
 
+// DeleteMany removes several QSOs in one statement. Returns the number deleted.
+func (r *Repo) DeleteMany(ctx context.Context, ids []int64) (int64, error) {
+	if len(ids) == 0 {
+		return 0, nil
+	}
+	ph := make([]string, len(ids))
+	args := make([]any, len(ids))
+	for i, id := range ids {
+		ph[i] = "?"
+		args[i] = id
+	}
+	res, err := r.db.ExecContext(ctx, `DELETE FROM qso WHERE id IN (`+strings.Join(ph, ",")+`)`, args...)
+	if err != nil {
+		return 0, fmt.Errorf("delete qsos: %w", err)
+	}
+	n, _ := res.RowsAffected()
+	return n, nil
+}
+
 // Delete removes a QSO by id.
 func (r *Repo) Delete(ctx context.Context, id int64) error {
 	res, err := r.db.ExecContext(ctx, `DELETE FROM qso WHERE id = ?`, id)