map-edit-sync
Changing how map edits are saved, loaded, or synced — local IndexedDB persistence, server sync of assignments and document metadata, optimistic concurrency, and sync-conflict resolution.
Datos de origen
- Repositorio
- districtr/districtr-v2
- Última actividad en el origen
- 18 de septiembre de 2026 a las 14:42
- Idioma detectado de SKILL.md
- inglés
- Estrellas
- 6
- Forks
- 3
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Instrucciones de origen · Vista previa de solo lectura- name
- map-edit-sync
- description
- Changing how map edits are saved, loaded, or synced — local IndexedDB persistence, server sync of assignments and document metadata, optimistic concurrency, and sync-conflict resolution.
- user-invocable
- false
# Map Edit Sync
## Vocabulary at this surface
- **`updated_at` and `clientLastUpdated` are different clocks, not near-synonyms.** `updated_at` is the server's timestamp on the document row; `clientLastUpdated` is the browser's own clock, stamped on every write to this browser's IDB copy (local edits *and* successful syncs). Comparing them **is** the local-edit signal — equal means the last IDB write was a server sync (no local edits since); different means something local changed. There is deliberately no dirty flag: the signal is derived from two timestamps already stored for other reasons, so it cannot fall out of sync with reality.
## Where the rest lives
- The `fetchDocument` load/merge walkthrough, conflict-resolution model, and server-owned metadata fields: `docs/overview.md`.
- Tracing an actual IDB/server divergence: [references/debugging.md](references/debugging.md).
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