Merge pull request '111-create-playlist-database-tables' (#137) from 111-create-playlist-database-tables into main

Reviewed-on: LibreTunes/LibreTunes#137
Reviewed-by: Ethan Girouard <ethan@girouard.com>

migrations/2024-10-22-212759_create_playlist_tables/down.sql

@@ -0,0 +1,5 @@
+DROP INDEX playlists_owner_idx;
+DROP TABLE playlists;
+
+DROP INDEX playlist_songs_playlist_idx;
+DROP TABLE playlist_songs;

migrations/2024-10-22-212759_create_playlist_tables/up.sql

@@ -0,0 +1,17 @@
+CREATE TABLE playlists (
+    id SERIAL PRIMARY KEY,
+    created_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP NOT NULL DEFAULT NOW(),
+    owner_id INTEGER REFERENCES users(id) ON DELETE CASCADE NOT NULL,
+    name TEXT NOT NULL
+);
+
+CREATE INDEX playlists_owner_idx ON playlists(owner_id);
+
+CREATE TABLE playlist_songs (
+    playlist_id INTEGER REFERENCES playlists(id) ON DELETE CASCADE NOT NULL,
+    song_id INTEGER REFERENCES songs(id) ON DELETE CASCADE NOT NULL,
+    PRIMARY KEY (playlist_id, song_id)
+);
+
+CREATE INDEX playlist_songs_playlist_idx ON playlist_songs(playlist_id);

src/models.rs

@@ -625,3 +625,24 @@ pub struct HistoryEntry {
 	/// The id of the song that was listened to
 	pub song_id: i32,
 }
+
+/// Model for a playlist
+#[cfg_attr(feature = "ssr", derive(Queryable, Selectable, Insertable))]
+#[cfg_attr(feature = "ssr", diesel(table_name = crate::schema::playlists))]
+#[cfg_attr(feature = "ssr", diesel(check_for_backend(diesel::pg::Pg)))]
+#[derive(Serialize, Deserialize)]
+pub struct Playlist {
+	/// A unique id for the playlist
+	#[cfg_attr(feature = "ssr", diesel(deserialize_as = i32))]
+	pub id: Option<i32>,
+	/// The time the playlist was created
+	#[cfg_attr(feature = "ssr", diesel(deserialize_as = NaiveDateTime))]
+	pub created_at: Option<NaiveDateTime>,
+	/// The time the playlist was last updated
+	#[cfg_attr(feature = "ssr", diesel(deserialize_as = NaiveDateTime))]
+	pub updated_at: Option<NaiveDateTime>,
+	/// The id of the user who owns the playlist
+	pub owner_id: i32,
+	/// The name of the playlist
+	pub name: String,
+}

src/schema.rs

@@ -39,6 +39,23 @@ diesel::table! {
     }
 }
 
+diesel::table! {
+    playlist_songs (playlist_id, song_id) {
+        playlist_id -> Int4,
+        song_id -> Int4,
+    }
+}
+
+diesel::table! {
+    playlists (id) {
+        id -> Int4,
+        created_at -> Timestamp,
+        updated_at -> Timestamp,
+        owner_id -> Int4,
+        name -> Text,
+    }
+}
+
 diesel::table! {
     song_artists (song_id, artist_id) {
         song_id -> Int4,
@@ -95,6 +112,9 @@ diesel::table! {
 
 diesel::joinable!(album_artists -> albums (album_id));
 diesel::joinable!(album_artists -> artists (artist_id));
+diesel::joinable!(playlist_songs -> playlists (playlist_id));
+diesel::joinable!(playlist_songs -> songs (song_id));
+diesel::joinable!(playlists -> users (owner_id));
 diesel::joinable!(song_artists -> artists (artist_id));
 diesel::joinable!(song_artists -> songs (song_id));
 diesel::joinable!(song_dislikes -> songs (song_id));
@@ -111,6 +131,8 @@ diesel::allow_tables_to_appear_in_same_query!(
     artists,
     friend_requests,
     friendships,
+    playlist_songs,
+    playlists,
     song_artists,
     song_dislikes,
     song_history,