<?php
  
  $currentVersion=OC_Appconfig::getValue('gallery', 'installed_version');
  if (version_compare($currentVersion, '0.5.0', '<')) {
  	$stmt = OCP\DB::prepare('DROP TABLE IF EXISTS `*PREFIX*gallery_photos`');
  	$stmt->execute();
  	$stmt = OCP\DB::prepare('DROP TABLE IF EXISTS `*PREFIX*gallery_albums`');
  	$stmt->execute();
  
  	\OC_DB::createDbFromStructure(OC_App::getAppPath($appid).'/appinfo/database.xml');
  }