286 lines
10 KiB
Markdown
286 lines
10 KiB
Markdown
# Database Schema
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This app creates and maintains its schema at startup through `src/db/index.js`.
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The sections below summarize the current tables and their purpose.
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Primary keys are `id` unless noted otherwise. Timestamps are stored as `created_at` and `modified_at` when a table supports auditing.
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## Admin
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- `a_users` - admin user accounts and password hashes.
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- `a_roles` - named role definitions.
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- `a_permissions` - permission catalog seeded from the application constants.
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- `a_role_permissions` - many-to-many mapping between roles and permissions.
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- `a_user_roles` - many-to-many mapping between users and roles.
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- `a_sessions` - persisted admin session tokens.
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### `a_users`
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- `id`, `name`, `username`, `password_hash`, `password_salt`, `password_iterations`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `username` is unique.
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### `a_roles`
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- `id`, `role_key`, `name`, `description`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `role_key` is unique.
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- `name` is unique.
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### `a_permissions`
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- `id`, `permission_key`, `name`, `section_name`, `description`, `created_at`, `modified_at`
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- `permission_key` is unique.
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### `a_role_permissions`
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- `role_id`, `permission_id`, `created_at`, `modified_at`
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- Foreign keys:
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- `role_id` -> `a_roles.id`
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- `permission_id` -> `a_permissions.id`
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- Composite primary key: `(role_id, permission_id)`
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### `a_user_roles`
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- `user_id`, `role_id`, `created_at`, `modified_at`
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- Foreign keys:
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- `user_id` -> `a_users.id`
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- `role_id` -> `a_roles.id`
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- Composite primary key: `(user_id, role_id)`
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### `a_sessions`
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- `session_hash`, `user_id`, `expires_at`, `created_at`, `created_by`, `last_used_at`, `modified_by`
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- `session_hash` is the primary key.
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- Foreign key:
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- `user_id` -> `a_users.id`
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## Content
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- `c_canvas_sizes` - reusable canvas presets for templates.
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- `c_playlists` - playlist definitions, playback options, and canvas assignment.
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- `c_templates` - slide templates with canvas and background settings.
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- `c_template_regions` - template region layout and metadata.
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- `c_slides` - slide records with template binding, JSON content, and thumbnail path.
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- `c_playlist_slides` - ordered playlist items and timing.
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- `c_playlist_slide_schedule_rules` - rule rows attached to playlist slides.
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### `c_canvas_sizes`
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- `id`, `name`, `width`, `height`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `(width, height)` is unique.
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### `c_playlists`
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- `id`, `name`, `fade_between_slides`, `skip_unavailable_rtmp`, `canvas_id`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `canvas_id` -> `c_canvas_sizes.id` with `ON DELETE SET NULL`
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### `c_templates`
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- `id`, `name`, `canvas_size_id`, `background_image_path`, `background_color`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `canvas_size_id` -> `c_canvas_sizes.id` with `ON DELETE SET NULL`
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### `c_template_regions`
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- `id`, `template_id`, `region_key`, `region_type`, `label`, `font_family`, `lock_ratio`, `animation_json`, `x`, `y`, `width`, `height`, `z_index`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `template_id` -> `c_templates.id` with `ON DELETE CASCADE`
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### `c_slides`
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- `id`, `title`, `template_id`, `content_json`, `thumbnail_path`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `template_id` -> `c_templates.id` with `ON DELETE SET NULL`
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### `c_playlist_slides`
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- `id`, `playlist_id`, `slide_id`, `position`, `duration_seconds`, `use_video_duration`, `disable_audio`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign keys:
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- `playlist_id` -> `c_playlists.id` with `ON DELETE CASCADE`
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- `slide_id` -> `c_slides.id` with `ON DELETE CASCADE`
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### `c_playlist_slide_schedule_rules`
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- `id`, `playlist_slide_id`, `position`, `start_datetime`, `end_datetime`, `start_time`, `end_time`, `schedule_days_json`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `playlist_slide_id` -> `c_playlist_slides.id` with `ON DELETE CASCADE`
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- Index:
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- `(playlist_slide_id, position)`
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- Each playlist slide can have zero or more schedule rules.
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- Rules are evaluated with OR across rows and with AND across the fields inside a single rule.
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## Devices
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- `d_players` - player registry and connection metadata.
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- `d_screens` - screen records and playlist assignment.
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- `d_onboarding_devices` - device-to-screen bindings and onboarded client names.
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## Announcements
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- `d_announcements` - announcement content and display metadata.
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- `d_announcement_screens` - announcement-to-screen assignments.
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### `d_players`
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- `id`, `identifier`, `public_base_url`, `internal_base_url`, `last_seen_at`, `created_at`, `modified_at`
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- `id` is the primary key.
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- `identifier` is unique and is the stable player identity used by the app.
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### `d_screens`
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- `id`, `name`, `slug`, `playlist_id`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `slug` is unique.
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- Foreign keys:
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- `playlist_id` -> `c_playlists.id` with `ON DELETE SET NULL`
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- Screens are no longer tied to a player foreign key directly; player registration and live connection metadata are tracked separately in `d_players`.
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### `d_onboarding_devices`
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- `device_id`, `client_name`, `screen_id`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `device_id` is the primary key.
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- Foreign key:
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- `screen_id` -> `d_screens.id` with `ON DELETE SET NULL`
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### `d_announcements`
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- `id`, `message`, `short_label`, `announcement_type`, `color_key`, `icon_key`, `duration_seconds`, `expires_at`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- `announcement_type` defaults to `lower-third`.
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### `d_announcement_screens`
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- `announcement_id`, `screen_id`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign keys:
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- `announcement_id` -> `d_announcements.id` with `ON DELETE CASCADE`
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- `screen_id` -> `d_screens.id` with `ON DELETE CASCADE`
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- Composite primary key: `(announcement_id, screen_id)`
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## Onboarding
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- The onboarding flow uses `d_onboarding_devices` to bind a device to a screen and persist the client name.
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## Integrations
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- `i_rss_feeds` - RSS feed definitions and refresh cadence.
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- `i_rss_feed_items` - cached RSS feed items.
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- `i_api_sources` - API source definitions and last response snapshot.
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- `i_schedule_groups` - grouped schedule definitions used by the schedule region.
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- `i_schedule_entries` - dated entries that belong to a schedule group.
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### `i_rss_feeds`
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- `id`, `name`, `feed_url`, `update_interval_value`, `update_interval_unit`, `item_limit`, `created_at`, `created_by`, `modified_at`, `modified_by`
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### `i_rss_feed_items`
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- `id`, `rss_feed_id`, `position`, `item_json`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `rss_feed_id` -> `i_rss_feeds.id` with `ON DELETE CASCADE`
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- Unique key:
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- `(rss_feed_id, position)`
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### `i_api_sources`
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- `id`, `name`, `api_url`, `auth_method`, `auth_username`, `auth_password`, `auth_bearer_token`, `auth_header_name`, `auth_header_value`, `items_path`, `update_interval_value`, `update_interval_unit`, `last_pulled_at`, `last_pull_error`, `last_response_status`, `last_response_content_type`, `last_response_json`, `created_at`, `created_by`, `modified_at`, `modified_by`
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### `i_schedule_groups`
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- `id`, `name`, `short_description`, `created_at`, `created_by`, `modified_at`, `modified_by`
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### `i_schedule_entries`
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- `id`, `schedule_group_id`, `title`, `short_description`, `start_datetime`, `end_datetime`, `created_at`, `created_by`, `modified_at`, `modified_by`
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- Foreign key:
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- `schedule_group_id` -> `i_schedule_groups.id` with `ON DELETE CASCADE`
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- Index:
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- `(schedule_group_id, start_datetime)`
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## Operations
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- `o_background_tasks` - queue and history for background jobs.
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### `o_background_tasks`
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- `id`, `task_key`, `task_type`, `title`, `category`, `status`, `payload_json`, `metadata_json`, `attempts`, `created_at`, `created_by`, `started_at`, `finished_at`, `error_message`
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- Indexed by `status`, `task_key`, and `task_type`.
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## Notes
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- The schema is initialized with `CREATE TABLE IF NOT EXISTS`, so new installs can start from an empty database.
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- `src/db/bootstrap.js` seeds the canvas size defaults, default permissions, and the default administrator role.
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- The migration module stays in place for future releases, but this version treats the current schema as the install baseline.
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```mermaid
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erDiagram
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A_USERS {
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}
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A_ROLES {
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}
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A_PERMISSIONS {
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}
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A_ROLE_PERMISSIONS {
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}
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A_USER_ROLES {
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}
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A_SESSIONS {
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}
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C_CANVAS_SIZES {
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}
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C_PLAYLISTS {
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}
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C_TEMPLATES {
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}
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C_TEMPLATE_REGIONS {
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}
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C_SLIDES {
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}
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C_PLAYLIST_SLIDES {
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}
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C_PLAYLIST_SLIDE_SCHEDULE_RULES {
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}
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D_PLAYERS {
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}
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D_SCREENS {
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}
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D_ONBOARDING_DEVICES {
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}
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D_ANNOUNCEMENTS {
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}
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D_ANNOUNCEMENT_SCREENS {
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}
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I_RSS_FEEDS {
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}
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I_RSS_FEED_ITEMS {
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}
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I_API_SOURCES {
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}
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I_SCHEDULE_GROUPS {
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}
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I_SCHEDULE_ENTRIES {
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}
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O_BACKGROUND_TASKS {
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}
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A_USERS ||--o{ A_USER_ROLES : has
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A_ROLES ||--o{ A_USER_ROLES : assigned_to
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A_ROLES ||--o{ A_ROLE_PERMISSIONS : has
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A_PERMISSIONS ||--o{ A_ROLE_PERMISSIONS : granted_to
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A_USERS ||--o{ A_SESSIONS : owns
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C_CANVAS_SIZES ||--o{ C_TEMPLATES : used_by
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C_CANVAS_SIZES ||--o{ C_PLAYLISTS : used_by
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C_TEMPLATES ||--o{ C_TEMPLATE_REGIONS : contains
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C_TEMPLATES ||--o{ C_SLIDES : used_by
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C_PLAYLISTS ||--o{ C_PLAYLIST_SLIDES : contains
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C_SLIDES ||--o{ C_PLAYLIST_SLIDES : included_in
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C_PLAYLIST_SLIDES ||--o{ C_PLAYLIST_SLIDE_SCHEDULE_RULES : has_rules
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C_PLAYLISTS ||--o{ D_SCREENS : uses
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D_SCREENS ||--o{ D_ONBOARDING_DEVICES : binds
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D_ANNOUNCEMENTS ||--o{ D_ANNOUNCEMENT_SCREENS : targets
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D_SCREENS ||--o{ D_ANNOUNCEMENT_SCREENS : receives
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I_RSS_FEEDS ||--o{ I_RSS_FEED_ITEMS : caches
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I_SCHEDULE_GROUPS ||--o{ I_SCHEDULE_ENTRIES : contains
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``` |