/**
* getLovedSongs()
* Gets user's loved songs. From cache file or from the feed.
*
* @return array $songs Returns formatted songs
*/
public static function getLovedSongs($username = '', $num_songs = 30)
{
if (!self::isValidUsername($username)) {
return array(self::$error);
}
// Check Feeder and Cache classes are accessible
if (!class_exists('Feeder')) {
return array('Could not find Feeder.class.php.');
}
if (!class_exists('Cache')) {
return array('Could not find Cache.class.php.');
}
self::$username = $username;
self::$num_songs = $num_songs;
$cache_filename = self::$username . '-loved-tracks.cache';
$cache_life = 86400;
// 1 day
Cache::init($cache_filename, $cache_life);
if (Cache::cacheFileExists()) {
return Cache::getCache();
}
$song_data = Feeder::getItems(self::getLovedSongsFeed(), self::$num_songs, array('title', 'link'));
if (!is_array($song_data)) {
self::$error = "Last.fm loved tracks feed not found";
return array(self::$error);
}
$songs = self::formatSongData($song_data);
Cache::setCache($songs);
return $songs;
}
/**
* getBooksFromShelf()
* Gets the array of books from a cache_file if found (and less than a week old).
* If no cache_file is found it creates this array of books and adds them to the cache_file - for fast loading next time
*
* @return array Returns a nicely formatted array of books
*/
private static function getBooksFromShelf()
{
$cache_filename = self::$goodreads_id . '-' . self::$shelf . '.cache';
$cache_life = 604800;
// 1 week
Cache::init($cache_filename, $cache_life);
if (Cache::cacheFileExists()) {
return Cache::getCache();
}
$book_data = Feeder::getItems(self::getGoodreadsFeed(), self::$num_books, array('title', 'author_name'));
if (!is_array($book_data)) {
self::$error = "Goodreads feed does not exist. Check user: "******" and shelf: '" . self::$shelf . "' exist";
return array(self::$error);
}
$books = self::formatBookData($book_data);
Cache::setCache($books);
return $books;
}
