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database: Remove track iterator from medium

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This commit is contained in:
Elias Projahn 2021-04-08 00:18:21 +02:00
parent 3f5f751992
commit d49be8d3a2
1 changed files with 0 additions and 43 deletions
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43
database/src/medium.rs
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@ -60,49 +60,6 @@ struct TrackRow {
pub path: String, pub path: String,
} }
/// An iterator that iterates through all tracks within a medium in order.
pub struct TrackIter<'a> {
medium: &'a Medium,
track_set_index: usize,
track_index: usize,
}
impl<'a> TrackIter<'a> {
/// Create a new iterator that iterates through tracks within the provided medium.
fn new(medium: &'a Medium) -> Self {
Self {
medium,
track_set_index: 0,
track_index: 0,
}
}
}
impl<'a> Iterator for TrackIter<'a> {
type Item = &'a Track;
fn next(&mut self) -> Option<&'a Track> {
match self.medium.tracks.get(self.track_set_index) {
Some(track_set) => {
match track_set.tracks.get(self.track_index) {
Some(track) => {
if self.track_index + 1 < track_set.tracks.len() {
self.track_index += 1;
} else {
self.track_set_index += 1;
self.track_index = 0;
}
Some(track)
}
None => None,
}
}
None => None,
}
}
}
impl Database { impl Database {
/// Update an existing medium or insert a new one. /// Update an existing medium or insert a new one.
pub fn update_medium(&self, medium: Medium) -> Result<()> { pub fn update_medium(&self, medium: Medium) -> Result<()> {