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"Recursive" configuration in Symfony2 Config Component
fashion_web_dynamic_routing:
paths:
family:
action: FashionWeb\ProductBundle\Controller\FamilyController::showFamilyAction
children:
subfamily:
action: FashionWeb\ProductBundle\Controller\ProductController::showByFamilyAndSubfamilyAction
campaign:
identifier: true
action: FashionWeb\CampaignBundle\Controller\CampaignController::showCampaignByFamilyAction
children:
subfamily:
action: FashionWeb\CampaignBundle\Controller\CampaignController::showCampaignByFamilyAndSubfamilyAction
campaign:
identifier: true
action: FashionWeb\CampaignBundle\Controller\CampaignController::showCampaignAction
children:
product:
identifier: true
action: FashionWeb\ProductBundle\Controller\ProductController::showProductAction
<?php
namespace FashionWeb\DynamicRoutingBundle\DependencyInjection;
use Symfony\Component\Config\Definition\Builder\TreeBuilder;
use Symfony\Component\Config\Definition\ConfigurationInterface;
use Symfony\Component\Config\Definition\Builder\NodeDefinition;
/**
* This is the class that validates and merges configuration from your app/config files
*
* To learn more see {@link http://symfony.com/doc/current/cookbook/bundles/extension.html#cookbook-bundles-extension-config-class}
*/
class Configuration implements ConfigurationInterface
{
/**
* {@inheritDoc}
*/
public function getConfigTreeBuilder()
{
$treeBuilder = new TreeBuilder();
$rootNode = $treeBuilder->root('fashion_web_dynamic_routing');
$this->buildPathNode(
$rootNode
->children()
->arrayNode('paths')
->validate()->ifTrue(function($element) {return count(array_filter($element, function($element) {return $element['identifier'];})) > 1;})->thenInvalid('There should be only one element with identifier => true.')->end()
->useAttributeAsKey('id')
->defaultValue(array())
->prototype('array')
)
->end()
->end()
->end()
;
return $treeBuilder;
}
protected function evaluateChildren(&$child, $name)
{
$child = $this->getPathNode($name)->finalize($child);
}
protected function buildPathNode(NodeDefinition $node)
{
return $node
->addDefaultsIfNotSet()
->validate()->ifTrue(function($element) {return count(array_filter($element['children'], function($element) {return $element['identifier'];})) > 1;})->thenInvalid('There should be only one element with identifier => true.')->end()
->children()
->scalarNode('action')->defaultNull()->end()
->booleanNode('identifier')->defaultFalse()->end()
->variableNode('children')
->defaultValue(array())
->validate()->ifTrue(function($element) { return !is_array($element); })->thenInvalid('The children element must be an array.')->end()
->validate()->always(function($children) {array_walk($children, array($this, 'evaluateChildren'));return $children;})->end()
->end()
->end()
;
}
protected function getPathNode($name = '')
{
$treeBuilder = new TreeBuilder();
$definition = $treeBuilder->root($name);
$this->buildPathNode($definition);
return $definition->getNode(true);
}
}
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