/**
* Gets an array of the database migrations.
*
* @return array
*/
private function doMigration()
{
$filesDone = $this->repository->getMigrationVersions();
$filesKnown = $this->reader->getFiles();
$filesForUpdate = $this->getFilesForUpdate($filesKnown, $filesDone);
$classesForUpdate = $this->getMigrationClasses($filesForUpdate);
$this->upAction($classesForUpdate);
}