mAi
275cb5a55a
- internal/exporter: pure BuildScene + 21-char base62 IDs, port ellipses, device rect+text pairs, IO diamonds, arrow bindings, legend texts. Bundles intentionally omitted per design §4.1. - internal/db: PersistExcalidrawIDs idempotent updater per project. - internal/server: POST /api/projects/:pid/sync/export — loads snapshot, mints/reuses excalidraw_ids, PUTs scene to mxdrw with bearer auth. Returns viewer URL + element_count + mxdrw response. Roundtrip hand-tested against mxdrw.msbls.de: scene saved, IDs stable across re-exports.
61 lines
1.5 KiB
Go
61 lines
1.5 KiB
Go
package db
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import (
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"database/sql"
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)
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// PersistExcalidrawIDs writes the assignments returned by the exporter
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// back onto the corresponding rows. Idempotent: only updates rows whose
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// excalidraw_id is currently NULL (the first export "owns" the id; later
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// exports reuse it so mxdrw's collab cursors / undo history survive).
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//
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// Caller passes one map per kind; keys are the in-project row ids,
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// values are the 21-char Excalidraw element ids the exporter minted.
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func (s *Store) PersistExcalidrawIDs(projectID int64,
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frames, devices, ports, ios, cables map[int64]string,
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) error {
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tx, err := s.db.Begin()
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if err != nil {
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return err
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}
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defer tx.Rollback()
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if err := updateExIDs(tx, "frames", projectID, frames); err != nil {
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return err
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}
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if err := updateExIDs(tx, "devices", projectID, devices); err != nil {
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return err
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}
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if err := updateExIDs(tx, "ports", projectID, ports); err != nil {
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return err
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}
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if err := updateExIDs(tx, "io_markers", projectID, ios); err != nil {
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return err
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}
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if err := updateExIDs(tx, "cables", projectID, cables); err != nil {
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return err
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}
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return tx.Commit()
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}
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func updateExIDs(tx *sql.Tx, table string, projectID int64, m map[int64]string) error {
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if len(m) == 0 {
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return nil
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}
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stmt, err := tx.Prepare(
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`UPDATE ` + table + `
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SET excalidraw_id = ?
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WHERE id = ? AND project_id = ? AND excalidraw_id IS NULL`,
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)
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if err != nil {
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return err
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}
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defer stmt.Close()
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for id, exID := range m {
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if _, err := stmt.Exec(exID, id, projectID); err != nil {
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return err
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}
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}
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return nil
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}
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