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# SCHEMA
This file represents the initial schema for the various data structures to be stored in the database.
These schema definitions target SQLite v3.
# Persons Table
The Persons table will contain data about Person entities (see MODELS.md)
``` sql
CREATE TABLE Persons (
id TEXT(36), /* UUIDv4 */
remote_id TEXT, /* field to store an arbitrary remote identifier for this Person if they are not local */
name TEXT, /* "real" name */
handle TEXT, /* also commonly refered to as 'display_name' or 'screen_name', optional (if missing, name will be used as handle) */
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avatar TEXT, /* optional URL to Person's avatar image / profile pic */
cover TEXT, /* optional URL to Person's cover image / header image */
bio TEXT, /* optional biographical text provided by Person */
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is_active INTEGER DEFAULT (1), /* bool, default true */
is_blocked INTEGER DEFAULT (0), /* bool, default false */
created_at INTEGER, /* timestamp */
modified_at INTEGER, /* timestamp */
modified_by TEXT(36), /* UUIDv4 */
deleted_at INTEGER, /* timestamp */
deleted_by TEXT(36), /* UUIDv4 */
last_seen INTEGER, /* timestamp */
shipping_address TEXT, /* optional, should use \n between lines to keep localized format as needed */
CONSTRAINT Persons_PK PRIMARY KEY (id),
CONSTRAINT Persons_FK FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT Persons_FK_1 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE UNIQUE INDEX Persons_remote_id_IDX ON Persons (remote_id);
CREATE INDEX Persons_name_IDX ON Persons (name);
CREATE INDEX Persons_handle_IDX ON Persons (handle);
CREATE INDEX Persons_is_active_IDX ON Persons (is_active);
CREATE INDEX Persons_is_blocked_IDX ON Persons (is_blocked);
CREATE INDEX Persons_deleted_at_IDX ON Persons (deleted_at);
```
# PersonEmails Table
The PersonEmails table is a one-to-many lookup table relating a Person to zero or more email addresses
``` sql
CREATE TABLE PersonEmails (
person_id TEXT(36),
email TEXT,
is_verified INTEGER DEFAULT (0),
is_primary INTEGER DEFAULT (0),
CONSTRAINT PersonEmails_PK PRIMARY KEY (email),
CONSTRAINT PersonEmails_FK FOREIGN KEY (person_id) REFERENCES Persons(id) ON DELETE CASCADE
);
CREATE INDEX PersonEmails_person_id_IDX ON PersonEmails (person_id);
CREATE INDEX PersonEmails_is_verified_IDX ON PersonEmails (is_verified);
CREATE INDEX PersonEmails_is_primary_IDX ON PersonEmails (is_primary);
```
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# PersonCredentialProvider
The PersonCredentialProvider table will contain configuration for different authentication providers.
``` sql
CREATE TABLE PersonCredentialProvider (
id TEXT(36),
name TEXT,
"type" TEXT,
config TEXT,
CONSTRAINT PersonCredentialProvider_PK PRIMARY KEY (id)
);
CREATE INDEX PersonCredentialProvider_name_IDX ON PersonCredentialProvider (name);
CREATE INDEX PersonCredentialProvider_type_IDX ON PersonCredentialProvider ("type");
```
# PersonCredential
The PersonCredential table will contain authentication credentials for Persons
``` sql
CREATE TABLE PersonCredential (
id TEXT(36),
person_id TEXT(36),
provider_id TEXT(36),
provider_user_id TEXT(36),
is_enabled INTEGER DEFAULT (1),
CONSTRAINT PersonCredential_PK PRIMARY KEY (id),
CONSTRAINT PersonCredential_FK FOREIGN KEY (person_id) REFERENCES Persons(id) ON DELETE CASCADE,
CONSTRAINT PersonCredential_FK_1 FOREIGN KEY (provider_id) REFERENCES PersonCredentialProvider(id) ON DELETE CASCADE
);
CREATE INDEX PersonCredential_person_id_IDX ON PersonCredential (person_id);
CREATE INDEX PersonCredential_provider_id_IDX ON PersonCredential (provider_id);
CREATE INDEX PersonCredential_is_enabled_IDX ON PersonCredential (is_enabled);
```
# PersonLocal
The PersonLocal table will contain hashed and salted passwords for users authenticating via PersonCredentialProvider.Local type provider
``` sql
CREATE TABLE PersonLocal (
person_id TEXT(36),
hash TEXT,
modified_at INTEGER,
modified_by TEXT(36),
CONSTRAINT PersonLocal_PK PRIMARY KEY (person_id),
CONSTRAINT PersonLocal_FK FOREIGN KEY (person_id) REFERENCES Persons(id) ON DELETE CASCADE
);
```
# Tags
The Tags table will contain tags for categorization of other entities. Tags use the originating host and the tag name as a composite key to allow for us to search for commonalities across instances (for example, "show me Albums matching *::tag::jazz" to see all the jazz albums this instance is aware of, "show me Albums matching sundog-isle.reclaim.technology::tag::jazz" to see only albums tagged as jazz on that one specific instance named in the host field).
``` sql
CREATE TABLE Tags (
id TEXT(36),
host TEXT,
tag TEXT,
CONSTRAINT Tags_PK PRIMARY KEY (id)
);
CREATE UNIQUE INDEX Tags_host_IDX ON Tags (host,tag);
```
# Labels
The Labels table will contain data about record labels/imprints that manage one or more Artists and their content.
``` sql
CREATE TABLE Labels (
id TEXT(36),
name TEXT,
description TEXT,
website TEXT,
is_enabled INTEGER DEFAULT (1),
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
CONSTRAINT Labels_PK PRIMARY KEY (id),
CONSTRAINT Labels_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT Labels_FK_1 FOREIGN KEY (modified_at) REFERENCES Persons(id),
CONSTRAINT Labels_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE INDEX Labels_name_IDX ON Labels (name);
CREATE INDEX Labels_description_IDX ON Labels (description);
CREATE INDEX Labels_is_enabled_IDX ON Labels (is_enabled);
CREATE INDEX Labels_created_by_IDX ON Labels (created_by);
CREATE INDEX Labels_deleted_at_IDX ON Labels (deleted_at);
```
# LabelContacts
The LabelContacts table will contain key-value pairs of methods to contact representatives of the Label (for example, "fediverse: sundog@toot-lab.reclaim.technology" or "email: sundog@reclaim.technology").
``` sql
CREATE TABLE LabelContacts (
id TEXT(36),
label_id TEXT(36),
"method" TEXT,
address TEXT,
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
sort_order INTEGER,
CONSTRAINT LabelContacts_PK PRIMARY KEY (id),
CONSTRAINT LabelContacts_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT LabelContacts_FK_1 FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT LabelContacts_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id),
CONSTRAINT LabelContacts_FK_3 FOREIGN KEY (label_id) REFERENCES Labels(id) ON DELETE CASCADE
);
CREATE INDEX LabelContacts_sort_order_IDX ON LabelContacts (sort_order);
```
# LabelTags
The LabelTags table will contain Tags that have been assigned to a Label.
``` sql
CREATE TABLE LabelTags (
label_id TEXT(36),
tag_id TEXT(36),
is_approved INTEGER DEFAULT (0),
CONSTRAINT LabelTags_PK PRIMARY KEY (label_id,tag_id),
CONSTRAINT LabelTags_FK FOREIGN KEY (label_id) REFERENCES Labels(id) ON DELETE CASCADE,
CONSTRAINT LabelTags_FK_1 FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
);
CREATE INDEX LabelTags_is_approved_IDX ON LabelTags (is_approved);
CREATE INDEX LabelTags_tag_id_IDX ON LabelTags (tag_id);
CREATE INDEX LabelTags_label_id_IDX ON LabelTags (label_id);
```
# Artists
The Artists table will contain Artists!
``` sql
CREATE TABLE Artists (
id TEXT(36),
name TEXT,
bio TEXT,
website TEXT,
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
is_enabled INTEGER DEFAULT (1),
is_public INTEGER DEFAULT (1),
CONSTRAINT Artists_PK PRIMARY KEY (id),
CONSTRAINT Artists_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT Artists_FK_1 FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT Artists_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE INDEX Artists_name_IDX ON Artists (name);
CREATE INDEX Artists_is_enabled_IDX ON Artists (is_enabled);
CREATE INDEX Artists_is_public_IDX ON Artists (is_public);
```
# ArtistTags
The ArtistTags table will contain Tags that have been assigned to an Artist.
``` sql
CREATE TABLE ArtistTags (
artist_id TEXT(36),
tag_id TEXT(36),
is_approved INTEGER DEFAULT (0),
CONSTRAINT ArtistTags_PK PRIMARY KEY (artist_id,tag_id),
CONSTRAINT ArtistTags_FK FOREIGN KEY (artist_id) REFERENCES Artists(id) ON DELETE CASCADE,
CONSTRAINT ArtistTags_FK_1 FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
);
CREATE INDEX ArtistTags_is_approved_IDX ON ArtistTags (is_approved);
CREATE INDEX ArtistTags_artist_id_IDX ON ArtistTags (artist_id);
CREATE INDEX ArtistTags_tag_id_IDX ON ArtistTags (tag_id);
```
# Tracks
The Tracks table will contain Tracks!
``` sql
CREATE TABLE Tracks (
id TEXT(36),
title TEXT,
description TEXT,
duration REAL,
is_public INTEGER,
is_available INTEGER DEFAULT (1),
preview_source TEXT,
"source" TEXT,
price INTEGER DEFAULT (0),
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
lyrics TEXT,
CONSTRAINT Tracks_PK PRIMARY KEY (id),
CONSTRAINT Tracks_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT Tracks_FK_1 FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT Tracks_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE INDEX Tracks_title_IDX ON Tracks (title);
CREATE INDEX Tracks_duration_IDX ON Tracks (duration);
CREATE INDEX Tracks_is_public_IDX ON Tracks (is_public);
CREATE INDEX Tracks_is_available_IDX ON Tracks (is_available);
CREATE INDEX Tracks_price_IDX ON Tracks (price);
CREATE INDEX Tracks_created_by_IDX ON Tracks (created_by);
CREATE INDEX Tracks_deleted_at_IDX ON Tracks (deleted_at);
CREATE INDEX Tracks_lyrics_IDX ON Tracks (lyrics);
```
# TrackArtists
The TrackArtists table will be a one-to-many lookup table mapping Artists to a particular Track.
``` sql
CREATE TABLE TrackArtists (
track_id TEXT(36),
artist_id TEXT(36),
is_primary INTEGER DEFAULT (0),
CONSTRAINT TrackArtists_PK PRIMARY KEY (track_id,artist_id),
CONSTRAINT TrackArtists_FK FOREIGN KEY (track_id) REFERENCES Tracks(id) ON DELETE CASCADE,
CONSTRAINT TrackArtists_FK_1 FOREIGN KEY (artist_id) REFERENCES Artists(id) ON DELETE CASCADE
);
CREATE INDEX TrackArtists_is_primary_IDX ON TrackArtists (is_primary);
CREATE INDEX TrackArtists_track_id_IDX ON TrackArtists (track_id);
CREATE INDEX TrackArtists_artist_id_IDX ON TrackArtists (artist_id);
```
# TrackTags
The TrackTags table will contain Tags that have been assigned to a Track.
``` sql
CREATE TABLE TrackTags (
track_id TEXT(36),
tag_id TEXT(36),
is_approved INTEGER DEFAULT (0),
CONSTRAINT TrackTags_PK PRIMARY KEY (track_id,tag_id),
CONSTRAINT TrackTags_FK FOREIGN KEY (track_id) REFERENCES Tracks(id) ON DELETE CASCADE,
CONSTRAINT TrackTags_FK_1 FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
);
CREATE INDEX TrackTags_is_approved_IDX ON TrackTags (is_approved);
CREATE INDEX TrackTags_track_id_IDX ON TrackTags (track_id);
CREATE INDEX TrackTags_tag_id_IDX ON TrackTags (tag_id);
```
# Albums
The Albums table will contain Albums!
``` sql
CREATE TABLE Albums (
id TEXT(36),
title TEXT,
description TEXT,
is_public INTEGER DEFAULT (0),
is_available INTEGER DEFAULT (1),
preview_source TEXT,
"source" TEXT,
price INTEGER DEFAULT (0),
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
CONSTRAINT Albums_PK PRIMARY KEY (id),
CONSTRAINT Albums_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT Albums_FK_1 FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT Albums_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE INDEX Albums_title_IDX ON Albums (title);
CREATE INDEX Albums_description_IDX ON Albums (description);
CREATE INDEX Albums_is_public_IDX ON Albums (is_public);
CREATE INDEX Albums_is_available_IDX ON Albums (is_available);
CREATE INDEX Albums_price_IDX ON Albums (price);
CREATE INDEX Albums_created_by_IDX ON Albums (created_by);
CREATE INDEX Albums_deleted_at_IDX ON Albums (deleted_at);
```
# AlbumArtists
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The AlbumArtists table will be a one-to-many lookup table mapping Artists to a particular Album.
``` sql
CREATE TABLE AlbumArtists (
album_id TEXT(36),
artist_id TEXT(36),
is_primary INTEGER DEFAULT (0),
CONSTRAINT AlbumArtists_PK PRIMARY KEY (album_id,artist_id),
CONSTRAINT AlbumArtists_FK FOREIGN KEY (album_id) REFERENCES Albums(id) ON DELETE CASCADE,
CONSTRAINT AlbumArtists_FK_1 FOREIGN KEY (artist_id) REFERENCES Artists(id) ON DELETE CASCADE
);
CREATE INDEX AlbumArtists_is_primary_IDX ON AlbumArtists (is_primary);
CREATE INDEX AlbumArtists_album_id_IDX ON AlbumArtists (album_id);
CREATE INDEX AlbumArtists_artist_id_IDX ON AlbumArtists (artist_id);
```
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# AlbumTags
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The AlbumTags table will contain Tags that have been assigned to an Album.
``` sql
CREATE TABLE AlbumTags (
album_id TEXT(36),
tag_id TEXT(36),
is_approved INTEGER DEFAULT (0),
CONSTRAINT AlbumTags_PK PRIMARY KEY (album_id,tag_id),
CONSTRAINT AlbumTags_FK FOREIGN KEY (album_id) REFERENCES Albums(id) ON DELETE CASCADE,
CONSTRAINT AlbumTags_FK_1 FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
);
CREATE INDEX AlbumTags_is_approved_IDX ON AlbumTags (is_approved);
CREATE INDEX AlbumTags_album_id_IDX ON AlbumTags (album_id);
CREATE INDEX AlbumTags_tag_id_IDX ON AlbumTags (tag_id);
```
# AlbumTracks
The AlbumTracks table will be a many-to-many lookup table mapping Tracks to Albums
``` sql
CREATE TABLE AlbumTracks (
album_id TEXT(36),
track_id TEXT(36),
track_number INTEGER,
CONSTRAINT AlbumTracks_PK PRIMARY KEY (album_id,track_id),
CONSTRAINT AlbumTracks_FK FOREIGN KEY (album_id) REFERENCES Albums(id) ON DELETE CASCADE,
CONSTRAINT AlbumTracks_FK_1 FOREIGN KEY (track_id) REFERENCES Tracks(id) ON DELETE CASCADE
);
CREATE INDEX AlbumTracks_track_number_IDX ON AlbumTracks (track_number);
CREATE INDEX AlbumTracks_album_id_IDX ON AlbumTracks (album_id);
CREATE INDEX AlbumTracks_track_id_IDX ON AlbumTracks (track_id);
```
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# Playlists
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The Playlists table will contain Playlists!
``` sql
CREATE TABLE Playlists (
id TEXT(36),
title TEXT,
description TEXT,
created_by TEXT(36),
created_at INTEGER,
modified_at INTEGER,
deleted_at INTEGER,
is_public INTEGER DEFAULT (1),
CONSTRAINT Playlists_PK PRIMARY KEY (id),
CONSTRAINT Playlists_FK FOREIGN KEY (created_by) REFERENCES Persons(id)
);
CREATE INDEX Playlists_title_IDX ON Playlists (title);
CREATE INDEX Playlists_description_IDX ON Playlists (description);
CREATE INDEX Playlists_created_by_IDX ON Playlists (created_by);
CREATE INDEX Playlists_created_at_IDX ON Playlists (created_at);
CREATE INDEX Playlists_modified_at_IDX ON Playlists (modified_at);
CREATE INDEX Playlists_deleted_at_IDX ON Playlists (deleted_at);
CREATE INDEX Playlists_is_public_IDX ON Playlists (is_public);
```
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# PlaylistTracks
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The PlaylistTracks table will be a many-to-many lookup table mapping Tracks to Playlists
``` sql
CREATE TABLE PlaylistTracks (
playlist_track_id TEXT(36),
playlist_id TEXT(36),
track_id TEXT,
track_number INTEGER,
CONSTRAINT PlaylistTracks_PK PRIMARY KEY (playlist_track_id),
CONSTRAINT PlaylistTracks_FK FOREIGN KEY (playlist_id) REFERENCES Playlists(id) ON DELETE CASCADE,
CONSTRAINT PlaylistTracks_FK_1 FOREIGN KEY (track_id) REFERENCES Tracks(id) ON DELETE CASCADE
);
CREATE INDEX PlaylistTracks_track_number_IDX ON PlaylistTracks (track_number);
CREATE INDEX PlaylistTracks_playlist_id_IDX ON PlaylistTracks (playlist_id);
CREATE INDEX PlaylistTracks_track_id_IDX ON PlaylistTracks (track_id);
```
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# PlaylistTags
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The PlaylistTags table will contain Tags that have been assigned to a Playlist.
``` sql
CREATE TABLE PlaylistTags (
playlist_id TEXT(36),
tag_id TEXT(36),
is_approved INTEGER DEFAULT (0),
CONSTRAINT PlaylistTags_PK PRIMARY KEY (playlist_id,tag_id),
CONSTRAINT PlaylistTags_FK FOREIGN KEY (playlist_id) REFERENCES Playlists(id) ON DELETE CASCADE,
CONSTRAINT PlaylistTags_FK_1 FOREIGN KEY (tag_id) REFERENCES Tags(id) ON DELETE CASCADE
);
CREATE INDEX PlaylistTags_is_approved_IDX ON PlaylistTags (is_approved);
CREATE INDEX PlaylistTags_playlist_id_IDX ON PlaylistTags (playlist_id);
CREATE INDEX PlaylistTags_tag_id_IDX ON PlaylistTags (tag_id);
```
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# Comments
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The Comments table will contain Comments!
``` sql
CREATE TABLE Comments (
id TEXT(36),
body TEXT,
created_by TEXT(36),
created_at INTEGER,
modified_by TEXT(36),
modified_at INTEGER,
deleted_by TEXT(36),
deleted_at INTEGER,
is_public INTEGER DEFAULT (1),
is_approved INTEGER DEFAULT (0),
in_reply_to TEXT(36),
CONSTRAINT Comments_PK PRIMARY KEY (id),
CONSTRAINT Comments_FK FOREIGN KEY (created_by) REFERENCES Persons(id),
CONSTRAINT Comments_FK_1 FOREIGN KEY (modified_by) REFERENCES Persons(id),
CONSTRAINT Comments_FK_2 FOREIGN KEY (deleted_by) REFERENCES Persons(id)
);
CREATE INDEX Comments_body_IDX ON Comments (body);
CREATE INDEX Comments_created_at_IDX ON Comments (created_at);
CREATE INDEX Comments_modified_at_IDX ON Comments (modified_at);
CREATE INDEX Comments_deleted_at_IDX ON Comments (deleted_at);
CREATE INDEX Comments_is_public_IDX ON Comments (is_public);
CREATE INDEX Comments_is_approved_IDX ON Comments (is_approved);
CREATE INDEX Comments_in_reply_to_IDX ON Comments (in_reply_to);
```
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# LabelComments
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The LabelComments table will relate Comments to the Label they are about, if pertinent.
``` sql
CREATE TABLE LabelComments (
label_id TEXT(36),
comment_id TEXT(36),
CONSTRAINT LabelComments_PK PRIMARY KEY (label_id,comment_id),
CONSTRAINT LabelComments_FK FOREIGN KEY (label_id) REFERENCES Labels(id) ON DELETE CASCADE,
CONSTRAINT LabelComments_FK_1 FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE
);
CREATE INDEX LabelComments_label_id_IDX ON LabelComments (label_id);
CREATE INDEX LabelComments_comment_id_IDX ON LabelComments (comment_id);
```
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# ArtistComments
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The ArtistComments table will relate Comments to the Artist they are about, if pertinent.
``` sql
CREATE TABLE ArtistComments (
artist_id TEXT(36),
comment_id TEXT(36),
CONSTRAINT ArtistComments_PK PRIMARY KEY (artist_id,comment_id),
CONSTRAINT ArtistComments_FK FOREIGN KEY (artist_id) REFERENCES Artists(id) ON DELETE CASCADE,
CONSTRAINT ArtistComments_FK_1 FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE
);
CREATE INDEX ArtistComments_artist_id_IDX ON ArtistComments (artist_id);
CREATE INDEX ArtistComments_comment_id_IDX ON ArtistComments (comment_id);
```
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# TrackComments
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The TrackComments table will relate Comments to the Track they are about, if pertinent.
``` sql
CREATE TABLE TrackComments (
track_id TEXT(36),
comment_id TEXT(36),
CONSTRAINT TrackComments_PK PRIMARY KEY (track_id,comment_id),
CONSTRAINT TrackComments_FK FOREIGN KEY (track_id) REFERENCES Tracks(id) ON DELETE CASCADE,
CONSTRAINT TrackComments_FK_1 FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE
);
CREATE INDEX TrackComments_track_id_IDX ON TrackComments (track_id);
CREATE INDEX TrackComments_comment_id_IDX ON TrackComments (comment_id);
```
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# AlbumComments
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The AlbumComments table will relate Comments to the Album they are about, if pertinent.
``` sql
CREATE TABLE AlbumComments (
album_id TEXT(36),
comment_id TEXT(36),
CONSTRAINT AlbumComments_PK PRIMARY KEY (album_id,comment_id),
CONSTRAINT AlbumComments_FK FOREIGN KEY (album_id) REFERENCES Albums(id) ON DELETE CASCADE,
CONSTRAINT AlbumComments_FK_1 FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE
);
CREATE INDEX AlbumComments_album_id_IDX ON AlbumComments (album_id);
CREATE INDEX AlbumComments_comment_id_IDX ON AlbumComments (comment_id);
```
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# PlaylistComments
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The PlaylistComments table will relate Comments to the Playlist they are about, if pertinent.
``` sql
CREATE TABLE PlaylistComments (
playlist_id TEXT(36),
comment_id TEXT(36),
CONSTRAINT PlaylistComments_PK PRIMARY KEY (playlist_id,comment_id),
CONSTRAINT PlaylistComments_FK FOREIGN KEY (playlist_id) REFERENCES Playlists(id) ON DELETE CASCADE,
CONSTRAINT PlaylistComments_FK_1 FOREIGN KEY (comment_id) REFERENCES Comments(id) ON DELETE CASCADE
);
CREATE INDEX PlaylistComments_playlist_id_IDX ON PlaylistComments (playlist_id);
CREATE INDEX PlaylistComments_comment_id_IDX ON PlaylistComments (comment_id);
```
# LabelImages
# ArtistImages
# TrackImages
# AlbumImages
# PlaylistImages
# LabelVideos
# ArtistVideos
# TrackVideos
# AlbumVideos
# ArtistContacts
# Articles
# ArticleTags
# ArticleImages
# ArticleVideos
# ArticleComments
