Symfony形式子代的递归循环

Question

我想构建一个将Symfony表单错误转换为可以序列化的多维数组的方法。

目前我只有一个窗体（fieldset类型）中的窗体。我创建了一个用于在表单中嵌入N个表单的新系统。我需要能够遍历所有有错误的孩子来填充$errors数组。

我需要跟踪深度或穿过的距离。

例如，表单中的表单应为$errors[depth1][depth2]['message']。具有多个嵌入表单（例如最多5个）的表单将是$errors[depth1][depth2][depth3][depth4][depth5]['message']$errors[depth1][depth2] e.t.c.

注意：[depth(N)]将被替换为当前的表单名称。

什么是最干净的方式来做到这一点。

这是我现在的函数，它可以获取字段集，但是我能够在不管深度如何获得任何错误并保持位置（键）完整？

private static function getFieldSetErrors(Form $form, &$errors) 
    { 
     foreach ($form->all() as $formField) { 
      if ($formField->getConfig()->getType()->getInnerType() instanceof FieldsetComponentType) { 
       // ...then loop over the fields to extract any errors. 
       foreach ($formField as $element) { 
        foreach ($element->getErrors() as $error) { 
         $errors[$formField->getName()][$element->getName()]['message'] = $error->getMessage(); 
         $errors[$formField->getName()][$element->getName()]['messageTemplate'] = $error->getMessageTemplate(); 
         $errors[$formField->getName()][$element->getName()]['messagePluralization'] = $error->getMessagePluralization(); 
         $errors[$formField->getName()][$element->getName()]['messageParameters'] = $error->getMessageParameters(); 
         $errors[$formField->getName()][$element->getName()]['cause'] = $errors[$formField->getName()][$element->getName()]; 
         if ($errorCause = $error->getCause()) { 
          $errors[$formField->getName()][$element->getName()]['cause']['plural'] = $errorCause->getPlural(); 
          $errors[$formField->getName()][$element->getName()]['cause']['propertyPath'] = $errorCause->getPropertyPath(); 
          $errors[$formField->getName()][$element->getName()]['cause']['invalidValue'] = $errorCause->getInvalidValue(); 
          $errors[$formField->getName()][$element->getName()]['cause']['constraint'] = serialize($errorCause->getConstraint()); 
          $errors[$formField->getName()][$element->getName()]['cause']['code'] = $errorCause->getCode(); 
          $errors[$formField->getName()][$element->getName()]['cause']['cause'] = $errorCause->getCause(); 
         } 
        } 
       } 
      } 
     } 
    } 

它可能看起来像：

private static function getFieldErrorsRecursively(Form $form, &$errors, $position = []) 
    { 
     foreach ($form as $child) { 
      $fieldsArray = $child->getConfig()->getOptions()['fields'] ?? []; 
      if (count($fieldsArray) === 0) { 
       if (!$child->isValid()) { 
        foreach ($child->getErrors() as $error) { 
         $errors[$child->getName()]['message'] = $error->getMessage(); 
         $errors[$child->getName()]['messageTemplate'] = $error->getMessageTemplate(); 
         $errors[$child->getName()]['messagePluralization'] = $error->getMessagePluralization(); 
         $errors[$child->getName()]['messageParameters'] = $error->getMessageParameters(); 
         $errors[$child->getName()]['cause'] = $errors[$child->getName()]; 
         if ($errorCause = $error->getCause()) { 
          $errors[$child->getName()]['cause']['plural'] = $errorCause->getPlural(); 
          $errors[$child->getName()]['cause']['propertyPath'] = $errorCause->getPropertyPath(); 
          $errors[$child->getName()]['cause']['invalidValue'] = $errorCause->getInvalidValue(); 
          $errors[$child->getName()]['cause']['constraint'] = serialize($errorCause->getConstraint()); 
          $errors[$child->getName()]['cause']['code'] = $errorCause->getCode(); 
          $errors[$child->getName()]['cause']['cause'] = $errorCause->getCause(); 
         } 
        } 

        return true; 
       } 
      } elseif (count($fieldsArray) > 0) { 
       self::getFieldErrorsRecursively($child, $errors, $child->getName()); 

       if (count($errors) > 0) { 
        return true; 
       } 

       return true; 
      } 
     } 

     return false; 
    } 

任何帮助，将不胜感激:)

Answer 1

Symfony provides a function for this

// a FormErrorIterator instance representing the form tree structure 
$errors = $form->getErrors(true, false);