Doctrine\ORM\Tools\SchemaTool::dropSchema PHP Метод

    public function dropSchema(array $classes)
    {
        $dropSchemaSql = $this->getDropSchemaSql($classes);
        $conn = $this->_em->getConnection();

        foreach ($dropSchemaSql as $sql) {
            $conn->executeQuery($sql);
        }
    }

 public function createSchema($table)
 {
     foreach (self::$classes as $meta) {
         if ($table === $meta->getTableName() || ".{$table}" === substr($meta->getTableName(), -strlen(".{$table}"))) {
             self::$tool->dropSchema([$meta]);
             self::$tool->createSchema([$meta]);
         }
     }
 }