/**
* Creates a new version of a specific image.
* @param integer $id the image id.
* @param string $version the image version.
* @return ThumbBase
* @throws CException if creating the image version fails.
*/
public function createVersion($id, $version)
{
if (isset($this->versions[$version])) {
$image = $this->load($id);
if ($image != null) {
$fileName = $this->resolveFileName($image);
$thumb = self::thumbFactory($this->resolveImagePath($image) . $fileName);
$options = ImageOptions::create($this->versions[$version]);
$thumb->applyOptions($options);
$path = $this->resolveImageVersionPath($image, $version);
if (!file_exists($path) && !$this->createDirectory($path)) {
throw new CException(__CLASS__ . ': Failed to create version! Directory could not be created.');
}
$path .= $fileName;
return $thumb->save($path);
} else {
throw new CException(__CLASS__ . ': Failed to create version! Image could not be found.');
}
} else {
throw new CException(__CLASS__ . ': Failed to create version! Version is unknown.');
}
}
/**
* @param ImageOptions|null $options
*
* @return string
*
* @api
*/
public function getUrl(ImageOptions $options = null)
{
$query = $options !== null ? '?' . $options->getQueryString() : '';
return parent::getUrl() . $query;
}