/**
* Delete temporary package files
*
* @return boolean
*/
protected function deletePackageFiles()
{
$res = parent::deletePackageFiles();
$res &= $this->deletePackageArchive();
return $res;
}
/**
* Throw an exception and remove package files.
* Redeclared to prevent of deleting a package of installed extension.
*
* @param string $errorMessage
* @return void
*/
protected function throwErrorAndRemovePackage($errorMessage = '')
{
if (!$this->isNew()) {
throw new Error($errorMessage);
}
return parent::throwErrorAndRemovePackage($errorMessage);
}