Symfony2 - doctrine获取表创建顺序

Question

I am using Symfony 2.7, doctrine 2, MySQL. I'm trying to retrieve the tables creation order in a controller as when issuing

php app/console doctrine:generate:schema --dump-sql

but I only need the table names. So, for instance, if I have two tables like Product - Category I'd like to have an output which looks like this : array('Category', 'Product')

Using this documentation here's what I've done so far:

public function getTablesCreationOrderAction()
{
    $conn = $this->get('database_connection');
    $sm = $conn->getSchemaManager();
    $sequences = $sm->listSequences($this->getParameter('database_name'));
    die();
}

An exception is thrown at $sequences = $sm->listSequences.

Here's the exception I get:

Operation 'Doctrine\DBAL\Platforms\AbstractPlatform::getListSequencesSQL' is not supported by platform.

I don't know if this means that MySQL does not support the operation.

Thanks!