environnement complet autonome, révision complete de la méthode, ajout de configuration

src/DependencyInjection/PdoConfiguration.php

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+<?php
+
+namespace App\DependencyInjection;
+
+use App\Pdo\PdoRequest;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+class PdoConfiguration implements ConfigurationInterface
+{
+    public function getConfigTreeBuilder()
+    {
+        $treeBuilder = new TreeBuilder('pdo');
+        $treeBuilder->getRootNode()->children()
+            ->scalarNode(PdoRequest::COLUMN_LOGIN_NAME)->isRequired()->cannotBeEmpty()->end()
+            ->scalarNode(PdoRequest::COLUMN_PASSWORD_NAME)->isRequired()->cannotBeEmpty()->end()
+            ->scalarNode(PdoRequest::TABLE_NAME)->isRequired()->cannotBeEmpty()->end()
+            ->arrayNode(PdoRequest::DATA_TO_FETCH)
+                ->scalarPrototype()->end()
+            ->end()
+        ->end();
+
+        return $treeBuilder;
+    }
+}

src/DependencyInjection/PdoExtension.php

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+<?php
+
+namespace App\DependencyInjection;
+
+use App\Pdo\PdoRequest;
+use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+use Symfony\Component\DependencyInjection\Extension\Extension;
+
+class PdoExtension extends Extension implements CompilerPassInterface
+{
+    /** @var array */
+    protected $pdoConfig;
+
+    public function load(array $configs, ContainerBuilder $container)
+    {
+        $configuration = new PdoConfiguration();
+        $config = $this->processConfiguration($configuration, $configs);
+        $this->pdoConfig = $config;
+    }
+
+    public function process(ContainerBuilder $container)
+    {
+        $definition = $container->getDefinition(PdoRequest::class);
+        $definition->replaceArgument('$config', $this->pdoConfig);
+    }
+}