Enables Multiple Schemas for MySQL on Doctrine

I created this bundle to fulfill a need for one of my projects. It is not thoroughly tested for all use cases, and will be regularly updated.

If you find this useful but spot a bug, I welcome PRs.

The Premise

Doctrine treats MySQL databases the same as PostgreSQL databases. The truth is that MySQL databases are closer in nature to a PostgreSQL schema, and the term DATABASE can be used interchangeably with SCHEMA in MySQL, even in syntax:

CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name ...

This makes it very difficult to handle MySQL layouts that use more than one schema - often a reality in inherited code.

If your personal use case is transferring an existing project with multiple schemas into a Symfony project, and you'd like to use Doctrine, then this bundle seeks to make that possible.

Installation

In your Symfony project, install with

composer require shoofly/doctrine-multi-schema-bundle

Add to your Symfony AppKernel.php:

$bundles = [
    new Shoofly\DoctrineMultiSchemaBundle\ShooflyDoctrineMultiSchemaBundle(),
];

Configuraiton

IMPORTANT: Remove your driver and platform, and replace it with these two parameters.

doctrine:
    dbal:
        driver_class: 'Shoofly\DoctrineMultiSchemaBundle\DBAL\MySQL\Driver'
        platform_service: "shoofly_doctrine_multi_schema.platform57"
        # for MySQL < 5.7, choose this:
        # platform_service: "shoofly_doctrine_multi_schema.platform"

Next, list the schemas you want to include in your ORM:

shoofly_doctrine_multi_schema:
    schemas:
        - foo
        - baz
        - bar

That should be the only configuration you need. If you run into any issues, please let me know.

Hope this helps someone else. If not, it's already helped me :)