ojezu/add-call-to-remote-service-bundle

Symfony2 bundle that allows injecting method from one service declaration in DI to another

OJezu/AddCallToRemoteServiceBundle

This bundle allows adding calls in container to other services, as though they were declared there. Allows some decoupling - the hottest thing in OOP., _(*1)

Symfony 3.4 and 4.0 Note

As of version 3.4 and 4.0 of Symfony, Dependency Injector is able to find all tagged services on its own:
http://symfony.com/doc/current/service_container/tags.html#reference-tagged-services, _(*2)

This Bundle still works, and can be useful in some cases, e.g. when it's impossible to overwrite or modify declaration of the "parent" class., _(*3)

Installation

composer require ojezu/add-call-to-remote-service-bundle

Usage

Register this bundle in app/appKernel.php:, _(*4)

class AppKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = array(
            new OJezu\ConfigurableDiscriminationBundle\AddCallToRemoteServiceBundle(),
            // app bundles
            new Acme\TestBundle\ParentBundle(),
            new Acme\TestBundle\ChildABundle(),
            new Acme\TestBundle\ChildBBundle(),
        );
        return $bundles;
    }
}

Now, instead of:, _(*5)

services:
    acme.root_service:
        class: Acme\Services\RootService
        calls:
            - ['registerChildService', ['Foo', '@acme.children.foo']]
            - ['registerChildService', ['Bar', '@acme.children.bar', {'foo': 'bar'}]]

    acme.children.foo:
        class: Acme\Services\Children\FooService

    acme.children.bar:
        class: Acme\Services\Children\BarService

You can do this!, _(*6)

services:
    acme.root_service:
        class: Acme\Services\RootService

services:
    acme.children.foo:
        class: Acme\Services\Children\FooService
        public: false
        tags:
          - name: 'ojezu.add_call_to_remote_service'
            remote_service: '@acme.root_service'
            method: 'registerChildService'
            argument.0: 'Foo'
            argument.1: '@'
            argument.2.foo: 'bar'

services:
    acme.children.bar:
        class: Acme\Services\Children\BarService
        public: false
        tags:
          - name: 'ojezu.add_call_to_remote_service'
            remote_service: '@acme.root_service'
            method: 'registerChildService'
            argument.0: 'Bar'
            argument.1: '@'

'@' will resolve to acme.children.foo and acme.children.bar respectively!, _(*7)

Questions

Why argument.0, argument.1, argument.2.foo and not an array?

Symfony/DependencyInjector does not support that. All tag attributes must be scalars, because of XML format supported and used internally by DependencyInjector., _(*8)

Will this load my services when they are unneeded?

No! This bundle modifies only definitions of services in container, it does not need to (and does not) load referenced services., _(*9)

License

MIT, _(*10)