如何在不使用覆盖所附配置份合并的Symfony /配置〜2.6

Question

我有2+ Symfony\Component\Console\Command，其中的每一个返回一个片配置Symfony\Component\Config\Definition\Builder\TreeBuilder的：

class ProjectFooCommand extends Command { 
public function getConfigTree() 
{ 
    return (new TreeBuilder()) 
     ->root('project') 
      ->children() 
       ->arrayNode('foo') 
        ->children() 
         // specific 
        ->end() 
       ->end() 
      ->end() 

    ; 
} 
} 

class ProjectBarCommand extends Command { 
public function getConfigTree() 
{ 
    return (new TreeBuilder()) 
     ->root('project') 
      ->children() 
       ->arrayNode('bar') 
        ->children() 
         // specific 
        ->end() 
       ->end() 
      ->end() 

    ; 
} 
} 

并且它们被组合成一个结构通过使用ArrayNodeDefinition::append()：

class Configuration implements ConfigurationInterface 
{ 
public function getConfigTreeBuilder() 
{ 
    $builder = new TreeBuilder(); 

    $treeBuilder = new TreeBuilder(); 
    $rootNode = $treeBuilder->root('codio'); 

    $rootNode 
     ->children() 
     ->scalarNode('lorem')->defaultValue('ABC')->end() 
     ->scalarNode('ipsum')->defaultValue('123')->end() 
     ->end() 
    ; 

    foreach ($this->application->all() as $command) 
    { 
     $rootNode->append($command->getConfigTree()); 
    } 

    return $treeBuilder; 
} 
} 

当它被添加到只有一个命令的配置时，一切正常。当我尝试添加第二个时，它会覆盖之前添加的内容。我该如何解决？

应该是：

codio: 
    lorem: ABC 
    ipsum: 123 
    project: 
     foo: 
      ... 
     bar: 
      ... 

电流：

codio: 
    lorem: ABC 
    ipsum: 123 
    project: 
     bar: 
      ... 

Answer 1

您是否尝试过的方法cannotBeOverwritten(true)：http://api.symfony.com/2.7/Symfony/Component/Config/Definition/Builder/NodeDefinition.html#method_cannotBeOverwritten？