Symfony combine yaml and php configuration files - php

Question

In Symfony 4, I would like to combine different configuration files for services. In the following scenario, my attempt is to import services from php configuration named services.php and then perform the other services configurations in the yaml file that imports the others services..
services.yaml
imports:
- { resource: services.php }
services:
_defaults:
autowire: true
autoconfigure: true
public: false
App\:
resource: '../src/*'
exclude: '../src/{Entity,Migrations,Tests,Kernel.php}'
services.php
<?php
use Symfony\Component\DependencyInjection\Definition;
$definition = new Definition();
$definition
->setAutowired(true)
->setAutoconfigured(true)
->setPublic(false)
;
$this->registerClasses($definition, 'App\\', '../src/*', '../src/{Entity,Migrations,Tests}');
$container->getDefinition(\App\SomeClass::class)
->setArgument('$param', 'someValue');
Class file
class SomeClass
{
public function __construct(string $param)
{
...
}
I get the following error:
Cannot autowire service
"App\SomeClass": argument "$param"
of method "__construct()" is type-hinted "string", you should
configure its value explicitly.
Also, I'm wondering if I have to necessary to overwrite the initial _defaults definition (or others already done in by the files that imports) from the yaml or I can inherit. Not sure how these files are all merged.

Answer 1

The problem is that you registering the classes in src/* twice, once in your services.php and once in your services.yaml.
So in the first run with services.php you correctly define the class and the required argument, then, in the second run with services.yaml the definition is being overwritten and it loses the argument again.
The minimal solution would be to exclude the SomeClass.php in the services.yaml so it won't be registered a second time:
App\:
resource: '../src/*'
exclude: '../src/{Entity,Migrations,Tests,Kernel.php,SomeClass.php}' # <- here I added SomeClass.php
It would be better though to create a separate namespace and exclude the directory in the YAML and only register this directory in the PHP-config.