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Symfony 7 >

COURSE

Symfony 7 Fundamentals: Services, Config & Environments >

CHAPTER

Non-Autowireable Arguments

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Challenge #1 of 1

Q: 

How to autowire an argument in the constructor of the ImageUploader service? The $kernelDir should be set to the kernel.project_dir parameter.

a)

Both B and D are valid.

b) 
namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire('%kernel.project_dir%')]
        private readonly string $kernelDir,
    ) {
    }
}
c) 
namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire('kernel.project_dir')]
        private readonly string $kernelDir,
    ) {
    }
}
d) 
namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire(param: 'kernel.project_dir')]
        private readonly string $kernelDir,
    ) {
    }
}
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