Yii框架没有将函数从库中获取到控制器中(使用class.php文件)

我正在使用一个名为MetaTune的Spotify库,并能够在CodeIgniter中轻松做到这一点,但Yii出现了一些初期问题,但目前它已经开始说:

Fatal error: Call to undefined method stdClass::searchTrack() in ....public_html/Yii/news/protected/controllers/NewsController.php on line 67

然而,功能是存在的。这个库中的文件都有一个 .class.php 后缀(例如。 MetaTune.class.php )并且库文件都存储在:

yii/application/protected/vendors/Metatune

使用Codeigniter,我在文件夹外制作了一个额外的spotify.php,并将其自动加载到我的控制器中,但我不确定这是否有必要。

我已经把它装进我的 配置.php 与:

    'import'=>array(
    'application.models.*',
    'application.components.*',
            'application.vendors.metatune.*',
),

这是 控制器 代码:

public function actionView($id)
{
 $model=$this->loadModel($id);

$spotify = MetaTune::getSomething();
$hello =  $model->title;
Yii::import('application.vendors.metatune.MetaTune');
$spotify->autoAddTracksToPlayButton = true; // Will add all searches for tracks into a list.
$spotify->playButtonHeight = 330; // For viewing the entire playlist
$spotify->playButtonTheme = "dark"; // Changing theme
$spotify->playButtonView = "coverart"; // Changing view
try
{
    $tracks = $spotify->searchTrack($hello);
    $tracks = $spotify->getPlayButtonAutoGenerated($hello);
}
catch (MetaTuneException $ex)
{
    die("<pre>Error\n" . $ex . "</pre>");
}

$song = 'tracks';

    $this->render('view',array(
        'model'=>$this->loadModel($id),
    ));
}

另请参阅下面的代码,其中有一个名为 获取实例 由于某种原因,它不能很好地与Yii配合使用,我不确定是否可以更改它,因为我使用它将MetaTune导入CodeIgniter控制器而没有任何问题。

只是其中的一部分 MetaTune.class.php 代码:

 Yii::import('application.vendors.metatune.Artist');
 Yii::import('application.vendors.metatune.Album');
 Yii::import('application.vendors.metatune.Track');
 Yii::import('application.vendors.metatune.CacheRequest');
 Yii::import('application.vendors.metatune.MBSimpleXMLElement');
 Yii::import('application.vendors.metatune.SpotifyItem');
 Yii::import('application.vendors.metatune.MetaTuneException');

 ....

 class MetaTune {
const CACHE_DIR = 'application/vendors/metatune/cache/'; // Cache directory (must be writable) relative to this file
const USE_CACHE = false; // Should caching be activated?
const CACHE_PREFIX = "METATUNE_CACHE_"; // prefix for cache-files. 

const SERVICE_BASE_URL_SEARCH = "http://ws.spotify.com/search/1/";
const SERVICE_BASE_URL_LOOKUP = "http://ws.spotify.com/lookup/1/";
const PLAYBUTTON_BASE_URL = "https://embed.spotify.com/?uri=";

public $autoAddTracksToPlayButton = false;

private $list = array();

// Holds instance
private static $instance;

.....

public static function getSomething()
{
    if (!isset(self::$instance))
    {
        $class = __CLASS__;
        self::$instance = new $class;
    }

    return self::$instance;
}

.....

 public function searchTrack($name, $page = 1)
{
    $url = self::SERVICE_BASE_URL_SEARCH . "track?q=" . $this->translateString($name) .  
    $this->addPageSuffix($page);
    $contents = $this->requestContent($url);
    $xml = new MBSimpleXMLElement($contents);

    $tracks = array();
    foreach ($xml->track as $track)
    {
        $tracks[] = $this->extractTrackInfo($track);
    }

    if ($this->autoAddTracksToPlayButton) {
        $this->appendTracksToTrackList($tracks);
    }

    return $tracks;
    } 

如果你有什么建议,我将不胜感激。谢谢