/**
* @param null $plugin
* @return mixed
*/
protected function getMigrationHistory($plugin = null)
{
$migrations = craft()->migrations->getMigrationHistory($plugin);
// Convert the dates to Unix timestamps
foreach ($migrations as &$migration) {
$migration['applyTime'] = $migration['applyTime']->getTimestamp();
}
return HtmlHelper::listData($migrations, 'version', 'applyTime');
}
