DependencyInjection与配置文件中的导入之间的区别

Question

I cant understand what difference between imoprt services in config file, or create DependencyInjection directory:

config.yml:

imports:    
- { resource: @VputiUserBundle/Resources/config/services.xml }

DependencyInjection:

public function load(array $configs, ContainerBuilder $container)
{
    $configuration = new Configuration();
    $config = $this->processConfiguration($configuration, $configs);

    $loader = new Loader\XmlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
    $loader->load('services.xml');
}

Answer 1

If you use the full stack symfony2 framework, then there the config for every bundle is loaded by the default behaviour of sf, so you don't have to import it on your config.yml , nevertheless you can't import an xml file in a yml file. The config.yml contain your main configuration for the app, the service configs in the bundle container the services for the bundle. If you are publishing your bundle then there you can share also the services , what resides in your bundle. Also, in the load function, after loading in the services from file, you can manipulate them, if needed.