/**
* Return a hash which refers to an entry in the db describing the files
*
* @see getFileString
*/
public static function getKey(array $files, $separator = ' ')
{
$content = self::getBase64($files, $separator);
$key = sha1($content);
$check = false;
if (function_exists('apc_store') && ini_get('apc.enabled')) {
$cache = new sfAPCCache();
$check = $cache->has($key);
} else {
$cache = new sfFileCache(array('cache_dir' => sfCombineUtility::getCacheDir()));
$check = $cache->has($key);
}
// Checks if key exists
if (false === $check) {
// now just doctrine
if (!class_exists('sfCombine')) {
throw new Exception('Call the task `doctrine:build-model` or use base64 url');
}
$keyExists = Doctrine::getTable('sfCombine')->find($key);
if (!$keyExists) {
$combine = new sfCombine();
$combine->setAssetKey($key);
$combine->setFiles($content);
$combine->save();
}
$cache->set($key, $content);
}
return $key;
}
