Setting the Symfony session storage factory - session

Question

I'm using Symfony 6 to refactor a CodeIgniter 3 framework. User logging in is done via CodeIgniter so I'd like to read the CI session data (stored in a DB) in Symfony.
I'm trying to use my own session storage factory because the CI session name is dynamically constructed using the hostname and also because of the way CI stores the session in the db is different to Symfony.
I've set the session storage factory in framework.yaml
# config/packages/framework.yaml
session:
storage_factory_id: App\Service\CINativeSessionStorageFactory
And I've configured my services (including my own PDO session handler):
# config/services.yaml
services:
# default configuration for services in *this* file
_defaults:
autowire: true # Automatically injects dependencies in your services.
autoconfigure: true # Automatically registers your services as commands, event subscribers, etc.
bind: # defines the scalar arguments once and apply them to any service defined/created in this file
string $locales: '%app_locales%'
string $defaultLocale: '%locale%'
string $emailSender: '%app.notifications.email_sender%'
# makes classes in src/ available to be used as services
# this creates a service per class whose id is the fully-qualified class name
App\:
resource: '../src/'
exclude:
- '../src/DependencyInjection/'
- '../src/Entity/'
- '../src/Kernel.php'
- '../src/Tests/'
# CodeIgniter Session handler
App\Service\CIPdoSessionHandler:
arguments:
- '%env(DATABASE_URL)%'
- {
db_table: 'ci_sessions',
db_id_col: 'id',
db_data_col: 'data',
db_time_col: 'timestamp',
db_lifetime_col: 'sess_lifetime'
}
properties:
logger: '#logger'
tags:
- { name: monolog.logger, channel: session }
App\Service\CINativeSessionStorageFactory:
arguments:
$handler : '#App\Service\CIPdoSessionHandler'
$options : {
cookie_secure: auto,
cookie_samesite: lax,
gc_maxlifetime: 7200
}
tags:
- { name: monolog.logger, channel: session }
However I am getting these errors in the logs:
[2022-11-30T17:32:16.738059+00:00] php.CRITICAL: Fatal Compile Error: Cannot declare class App\Service\CINativeSessionStorageFactory, because the name is already in use {"exception":"[object] (Symfony\\Component\\ErrorHandler\\Error\\FatalError(code: 0): Compile Error: Cannot declare class App\\Service\\CINativeSessionStorageFactory, because the name is already in use at /workspace/symfony/src/Service/CINativeSessionStorageFactory.php:16)"} []
[2022-11-30T17:32:16.739841+00:00] request.CRITICAL: Uncaught PHP Exception Symfony\Component\ErrorHandler\Error\FatalError: "Compile Error: Cannot declare class App\Service\CINativeSessionStorageFactory, because the name is already in use" at /workspace/symfony/src/Service/CINativeSessionStorageFactory.php line 16 {"exception":"[object] (Symfony\\Component\\ErrorHandler\\Error\\FatalError(code: 0): Compile Error: Cannot declare class App\\Service\\CINativeSessionStorageFactory, because the name is already in use at /workspace/symfony/src/Service/CINativeSessionStorageFactory.php:16)"} []
[2022-11-30T17:32:16.741681+00:00] session.DEBUG: Using App\Service\CIPdoSessionHandler [] []
[2022-11-30T17:32:16.741839+00:00] session.DEBUG: Setting session name to ci_session_XXXXXXX [] []
The last two lines indicate that my storage factory is working (at least partially) so I'm unsure as why I'm getting these errors.
The first part of my question is: Where am I going wrong?
As an aside, I noticed that if I set up my framework.yaml like this:
# config/packages/framework.yaml
session:
handler_id: App\Service\CIPdoSessionHandler
storage_factory_id: App\Service\CINativeSessionStorageFactory
Then the handler passed to my constructor was always null
public function __construct(array $options = [], AbstractProxy|\SessionHandlerInterface $handler = null, MetadataBag $metaBag = null, bool $secure = false)
{
// $handler is null!
So the second part of my question is: Do handler_id and storage_factory_id not work together?
Some additional information from trying to debug this issue:
If I save config/services.yaml and then refresh the page - I don't get this message.
If I then refresh the page again - I get the error message.
If I then save config/services.yaml again and refresh the page - I don't get this message
... etc
Is my installation broken? I followed the steps here : https://symfony.com/doc/current/setup.html