95 lines
4.4 KiB
Markdown
95 lines
4.4 KiB
Markdown
# Timetable Periods Backend
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## Purpose
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`timetable_periods` is a single scheduled slot within a timetable — a weekday, start/end time,
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room, and the class subject taught. It is a generic-CRUD slice assembled from the shared
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factories and belongs to one `timetables` row.
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## Slice Files (by layer)
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- Route: `src/routes/timetable_periods.ts` — `createCrudRouter(controller, { permission: 'timetable_periods' })`.
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- Controller: `src/api/controllers/timetable_periods.controller.ts` — `createCrudController(service, { csvFields })`.
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- Service (BLL): `src/services/timetable_periods.ts` — `createCrudService(DbApi, { notFoundCode: 'timetable_periodsNotFound' })`.
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- Repository (DAL): `src/db/api/timetable_periods.ts` (`Timetable_periodsDBApi`) — entity-specific
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`create`/`bulkImport`/`update`/`findBy`/`findAll`; `remove`/`deleteByIds`/`findAllAutocomplete`
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delegate to `db/api/shared/repository.ts`.
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- Model: `src/db/models/timetable_periods.ts`.
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- Shared used: CRUD factories (`services/shared/crud-service.ts`,
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`api/controllers/shared/crud-controller.ts`, `api/http/crud-router.ts`), repository helpers
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(`db/api/shared/repository.ts`), `shared/constants/pagination.ts` (`resolvePagination`),
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`db/utils.ts` (`Utils.uuid`/`Utils.ilike`), `shared/constants/database.ts`
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(`BULK_IMPORT_TIMESTAMP_STEP_MS`).
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## API
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The standard generic-CRUD surface (all under `/api/timetable_periods`, JWT +
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`${METHOD}_TIMETABLE_PERIODS` permission, all `200`) — see `backend-architecture.md` for the
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shared 9-endpoint contract:
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- `POST /` — body `{ data }`, returns `true`.
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- `POST /bulk-import` — multipart CSV file, returns `true`.
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- `PUT /:id` — body `{ data, id }` (the service reads the id from the **body**), returns `true`.
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- `DELETE /:id` — returns `true`.
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- `POST /deleteByIds` — body `{ data: string[] }`, returns `true`.
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- `GET /` — query filters, returns `{ rows, count }`; `?filetype=csv` streams a CSV of `csvFields`.
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- `GET /count` — returns `{ rows: [], count }`.
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- `GET /autocomplete` — `?query&limit&offset`, returns `[{ id, label }]` where `label` is
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`room`.
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- `GET /:id` — returns the record with eager associations (see Data Contract).
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`csvFields`: `id`, `room`, `starts_at`, `ends_at`.
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## Access Rules
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- JWT required; the whole router is guarded by `checkCrudPermissions('timetable_periods')`,
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deriving `READ_TIMETABLE_PERIODS` / `CREATE_TIMETABLE_PERIODS` / `UPDATE_TIMETABLE_PERIODS` /
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`DELETE_TIMETABLE_PERIODS` per HTTP method.
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- Access is granted by role permission or per-user `custom_permissions` (see `permissions.md`).
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## Tenant Scope
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- `findAll` scopes `where.organizationId` to `currentUser.organizationId`; a `globalAccess`
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role clears the org filter (sees all tenants).
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- `create` assigns the organization from `currentUser.organizationId`; `update` only reassigns
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organization for `globalAccess` users (otherwise it stays the caller's org).
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## Data Contract
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Model columns (`paranoid`, soft-delete via `deletedAt`):
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- `id` (UUID PK).
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- `day_of_week` — ENUM `monday` | `tuesday` | `wednesday` | `thursday` | `friday` | `saturday`
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| `sunday`.
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- `starts_at`, `ends_at` — DATE.
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- `room` — TEXT.
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- `importHash` (STRING(255), unique), `class_subjectId`, `organizationId`, `timetableId`,
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`createdById`, `updatedById`, timestamps (all UUID FKs nullable).
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Associations: `belongsTo` organization, timetable (`timetables`),
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class_subject (`class_subjects`), createdBy/updatedBy (users). `findBy`/`GET /:id` eager-load
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organization, timetable, and class_subject in a single `Promise.all`.
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List filters (`TimetablePeriodsFilter`): `id`, `room` (iLike), `starts_atRange`, `ends_atRange`,
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`day_of_week`, `timetable` (id or name, `|`-separated), `class_subject` (id or status),
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`organization`, `createdAtRange`, plus `field`/`sort` ordering and `limit`/`page` pagination.
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## Behavior / Notes
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- `create`/`bulkImport`/`update` set associations via the Sequelize `set*` mixins (no file
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relations on this entity).
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- `bulkImport` offsets `createdAt` per row by `BULK_IMPORT_TIMESTAMP_STEP_MS` to preserve order.
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- List pagination uses the shared `resolvePagination` defaults (page size 10, capped at 100).
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- Note: `TimetablePeriodsFilter` accepts an `active` flag the model has no column for; it is
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applied to `where.active` but, with no such column, is currently inert (kept for source
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accuracy).
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## Tests
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None yet.
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## Related
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- Generic-CRUD contract: `backend-architecture.md`; related slices: `timetables`,
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`class_subjects`, `permissions.md`.
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