DIC and Parameters - symfony

Question

There's something that I'm missing.
Let's say I have a database from wich I start a new project. This database will be created after restoring a .dump file so it will also contain some "static" (static inserts from scratch db to populate it with "unchangeable" data) information inside it.
As this information will never change and as I need some of them (i.e.: an id for retrieve exactly a specific entity) I've thought to place them into a configuration file that is processed with the DIC & co.
First question: is this approach right or is better to create a specific .php file with some configuration values?
Second question: Why parameters I've defined through DIC aren't available?
I've create a folder called DependencyInjection inside my bundle, I've created MyCompanyMyBundleNameExtension file and create a Configuration file. I'm sure that files are placed in the right place as If I "remove" them all the things will mess up (just for people who will comment with "are you sure that ..." yes, I'm sure) I've also included inside my bundle "main" file the following
public function build(ContainerBuilder $container)
{
parent::build($container);
}
but if I dump (I use this approach as inside controller the exception "The parameter "xxxxx" must be defined. is raised") the config file inside Extension I can notice that is empty. Have I missing something?
UPDATE
This is Configuration.php file
namespace Foo\FooBundle\DependencyInjection;
use Symfony\Component\Config\Definition\ConfigurationInterface;
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
class Configuration implements ConfigurationInterface
{
/**
* Generates the configuration tree.
*
* #return TreeBuilder
*/
public function getConfigTreeBuilder()
{
$tree_builder = new TreeBuilder();
$root_node = $tree_builder->root('foo_bundle');
$root_node
->children()
->arrayNode('text_type')
->children()
->integerNode('title')->defaultValue(1)->end()
->integerNode('description')->defaultValue(2)->end()
->end()
->end()
->end()
;
return $tree_builder;
}
}
and this is the Extension
<?php
namespace Foo\BookingEngineBundle\DependencyInjection;
use Symfony\Component\HttpKernel\DependencyInjection\Extension;
use Symfony\Component\DependencyInjection\ContainerBuilder;
use Symfony\Component\Config\Definition\Processor;
class FooFooBundleExtension extends Extension
{
public function load(array $configs, ContainerBuilder $container)
{
$processor = new Processor();
$configuration = new Configuration();
$config = $processor->processConfiguration($configuration, $configs);
error_log(print_r($config, true)); //empty
$this->remapParametersNamespaces($config, $container, array(
'' => array(
'text_type' => 'foo_bundle.text_type.%s',
),
));
}
protected function remapParametersNamespaces(array $config, ContainerBuilder $container, array $namespaces)
{
foreach ($namespaces as $ns => $map) {
if ($ns) {
if (!array_key_exists($ns, $config)) {
continue;
}
$namespaceConfig = $config[$ns];
} else {
$namespaceConfig = $config;
}
if (is_array($map)) {
$this->remapParameters($namespaceConfig, $container, $map);
} else {
foreach ($namespaceConfig as $name => $value) {
$container->setParameter(sprintf($map, $name), $value);
}
}
}
}
protected function remapParameters(array $config, ContainerBuilder $container, array $map)
{
foreach ($map as $name => $paramName) {
if (array_key_exists($name, $config)) {
$container->setParameter($paramName, $config[$name]);
}
}
}
UPDATE 2
If I run from command line the following php app/console config:dump-reference foo_bundle I can see configuration printed out. I'm pretty confused.
UPDATE 3
I got it finally:
it seems that you need to specify at least one parameter into your config.yml main file, otherwise the "merge" option performed into YourBundleNameExtension will fail and return an empty array.
Subquestion: there isn't a method that I can follow to free me from write parateter into parameters.yml?

Answer 1

I got it finally:
it seems that you need to specify at least one parameter (related to your Config D.I. file) into your config.yml main file, otherwise the "merge" option performed into YourBundleNameExtension will fail and return an empty array.
Looking at my Configuration.php file, in order to make the code works without specify parameter directly into parameters.yml file, modify Configuration.php that way:
<?php
namespace Koobi\BookingEngineBundle\DependencyInjection;
use Symfony\Component\Config\Definition\ConfigurationInterface;
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
class Configuration implements ConfigurationInterface
{
/**
* Generates the configuration tree.
*
* #return TreeBuilder
*/
public function getConfigTreeBuilder()
{
$tree_builder = new TreeBuilder();
$root_node = $tree_builder->root('koobi_booking_engine');
$root_node
->children()
->arrayNode('text_type')
->cannotBeOverwritten()
->addDefaultsIfNotSet()
->children()
->integerNode('title')->defaultValue(1)->end()
->integerNode('description')->defaultValue(2)->end()
->end()
->end()
->end()
;
return $tree_builder;
}
}
the key is ->addDefaultsIfNotSet() builder's method
How do I went to solution?
Look at Extension file: you should notice the
$config = $processor->processConfiguration($configuration, $configs);
snippet of code.
If you open use Symfony\Component\Config\Definition\Processor; and analyze processConfiguration() method, you'll see that $configs - that represent config.yml content - will be merged to $configuration (that represent Configuration.php, so the DIC file that extenion will manage).
So the idea that a common key should be present somewhere came in my mind: after that successful check I've started to search for some methodology that helps me avoid the explicit process of writing parameters into config.yml (that wasn't what i want) and now all works like a charm
SIDE NOTE
I still don't know if this is a valid approach so I'm not gonna check this as correct answer.