Rust Programming By Example

ID3— MP3 metadata

We're now ready to get all the relevant metadata from the MP3 files and add them to the playlist. Let's start the Playlist::add() method by fetching the metadata:

    pub fn add(&self, path: &Path) {
        let filename =           path.file_stem().unwrap_or_default().to_str().unwrap_or_default();

        let row = self.model.append();

        if let Ok(tag) = Tag::read_from_path(path) {
            let title = tag.title().unwrap_or(filename);
            let artist = tag.artist().unwrap_or("(no artist)");
            let album = tag.album().unwrap_or("(no album)");
            let genre = tag.genre().unwrap_or("(no genre)");
            let year = tag.year().map(|year|             year.to_string()).unwrap_or("(no              year)".to_string());
            let track = tag.track().map(|track|             track.to_string()).unwrap_or("??".to_string());
            let