Symfony2. Howto multiple config files in a bundle - symfony

Question

I just can't figure this out.
I am writing a report builder in Symfony2.
I have a config file like this:
bundle:
sections:
Report1:
buckets:
bucket1:
...
calculations:
calculation1:
...
report:
rows:
row1:
...
For several reports, this gets to be loooong.
I've tried breaking this file into smaller files and loading them separately. This didn't work. Here's what I tried:
public function load(array $configs, ContainerBuilder $container)
{
$configuration = new Configuration();
$config = $this->processConfiguration($configuration, $configs);
$loader = new Loader\YamlFileLoader($container, new FileLocator(__DIR__.'/../Resources/config'));
$loader->load('bundle_report.yml');
$loader->load('bundle_report_1.yml'); // Order is important here
$loader->load('bundle_report_2.yml');
$loader->load('bundle_report_3.yml');
$loader->load('services.yml');
}
What's the best way to do this? Is it even possible?
The error I'm getting is (exception is thrown before $loader->load()s happen):
The child node "sections" at path "bundle" must be configured
If I switch the order ( $loader->load()s first, then new Configuration()):
There is no extension able to load the configuration for "bundle"
Configuration looks like this:
public function getConfigTreeBuilder()
{
$treeBuilder = new TreeBuilder();
$rootNode = $treeBuilder->root('bundle');
$rootNode
->children()
->arrayNode('sections')->isRequired()
->prototype('array')
...

Answer 1

Here's what I did.
Loaded it all into one 'bundle.yml' config file.
Put that file in app/config
Imported it in app/config.yml imports section
Defined the 'Configuration' class in my bundle (see above). Bundle generator created this.
Then, in my BundleReportExtension class, added these lines
// Parse our configuration. It's included in /app/config/config.yml
// Parser is Configuration class in this package.
$configuration = new Configuration();
$config = $this->processConfiguration($configuration, $configs);
// Great. Parsed. Now copy to parameters for later use.
$container->setParameter('bundle.default_config', $config['default_config']);
$container->setParameter('bundle.sections', $config['sections']);
Now, I can't get the configuration as an array with:
$container->setParameter('bundle.sections');
In much searching this is the best I could come up with. If you have other suggestions, please share.

Answer 2

You are not supposed to load your config files from the load method.
This is made to
load the base config from Configuration class
compare it to custom config (yml files in app/config/)
and load the bundle services
All your config files must be in app/config/ to be passed as parameters to the load method. As you do it here, they are useless.
That's why you get
The child node "sections" at path "bundle" must be configured
And if you reports are evolving, maybe it's better to put this in a business logic (model/entities) and to plug an admin (eg: sonata admin).