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Combine user profile history DB queries into single query

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This commit is contained in:
Ethan Girouard
2025-02-05 14:35:37 -05:00
parent e42247ee84
commit 6a52598956
1 changed files with 15 additions and 17 deletions
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32
src/api/profile.rs
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@ -71,27 +71,25 @@ pub async fn recent_songs(for_user_id: i32, limit: Option<i64>) -> Result<Vec<(N
let mut db_con = get_db_conn();
// Create an alias for the table so it can be referenced twice in the query
let history2 = diesel::alias!(song_history as history2);
// Get the ids of the most recent songs listened to
let history_items: Vec<i32> =
if let Some(limit) = limit {
song_history::table
.filter(song_history::user_id.eq(for_user_id))
.order(song_history::date.desc())
.limit(limit)
.select(song_history::id)
.load(&mut db_con)?
} else {
song_history::table
.filter(song_history::user_id.eq(for_user_id))
.order(song_history::date.desc())
.select(song_history::id)
.load(&mut db_con)?
};
let history_ids = history2
.filter(history2.fields(song_history::user_id).eq(for_user_id))
.order(history2.fields(song_history::date).desc())
.select(history2.fields(song_history::id));
let history_ids = if let Some(limit) = limit {
history_ids.limit(limit).into_boxed()
} else {
history_ids.into_boxed()
};
// Take the history ids and get the song data for them
let history: Vec<(HistoryEntry, Song, Option<Album>, Option<Artist>, Option<(i32, i32)>, Option<(i32, i32)>)>
= song_history::table
.filter(song_history::id.eq_any(history_items))
.filter(song_history::id.eq_any(history_ids))
.inner_join(songs::table)
.left_join(albums::table.on(songs::album_id.eq(albums::id.nullable())))
.left_join(song_artists::table.inner_join(artists::table).on(songs::id.eq(song_artists::song_id)))
@ -109,7 +107,7 @@ pub async fn recent_songs(for_user_id: i32, limit: Option<i64>) -> Result<Vec<(N
.load(&mut db_con)?;
// Process the history data into a map of song ids to song data
let mut history_songs: HashMap<i32, (NaiveDateTime, frontend::Song)> = HashMap::with_capacity(history.len());
let mut history_songs: HashMap<i32, (NaiveDateTime, frontend::Song)> = HashMap::new();
for (history, song, album, artist, like, dislike) in history {
let song_id = history.song_id;