/**
* Single purge step that reverts any included and installed migrations
*
* @param mixed $old_state State returned by previous call of this method
* @return false Indicates no further steps are required
*/
public function purge_step($old_state)
{
$migrations = $this->get_migration_file_list();
foreach ($migrations as $migration) {
while ($this->migrator->migration_state($migration) !== false) {
$this->migrator->revert($migration);
return true;
}
}
return false;
}
