18 lines
1.1 KiB
Markdown
18 lines
1.1 KiB
Markdown
# Expo HAS CHANGED
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Read the exact versioned docs at https://docs.expo.dev/versions/v57.0.0/ before writing any code.
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# Local storage
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Persistence is SQLite-backed via `services/db/` (`expo-sqlite`, database `dot.db`).
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- `services/db/client.ts` — connection lifecycle: `getDatabase()`, `closeDatabase()`, `withTransaction()`.
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- `services/db/migrations.ts` — versioned, chained migrations via `PRAGMA user_version` (list of `{ version, up }`).
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- `services/db/schema.ts` — `DATABASE_NAME`, `DATABASE_VERSION`, column-list constants.
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- `services/db/repositories/` — one module per table (`folders`, `files`, `user_preferences`).
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- `services/localStorage.ts` is a thin re-export (`services/db`) kept for legacy imports.
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- Tables: `folders`, `files`, `user_preferences`; `files.folder_uri` has index `idx_files_folder_uri`.
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- Folder and file per-row sync status: `local` | `cloud` | `local-cloud`.
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- Query usage: `getFiles(folderUri?)`, `getFolders()`, `getFolderFolders(parentUri)`, `saveFolder`, `saveFile`, `saveUserPreferences`, `getUserPreferences`, `removeFolder`, `removeFile`.
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- Heavy processing stays server-side; SQLite only persists local metadata/state.
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