Symfony形式子代的遞歸循環

Question

我想構建一個將Symfony表單錯誤轉換爲可以序列化的多維數組的方法。

目前我只有一個窗體（fieldset類型）中的窗體。我創建了一個用於在表單中嵌入N個表單的新系統。我需要能夠遍歷所有有錯誤的孩子來填充$errors數組。

我需要跟蹤深度或穿過的距離。

例如，表單中的表單應爲$errors[depth1][depth2]['message']。具有多個嵌入表單（例如最多5個）的表單將是$errors[depth1][depth2][depth3][depth4][depth5]['message']$errors[depth1][depth2] e.t.c.

注意：[depth(N)]將被替換爲當前的表單名稱。

什麼是最乾淨的方式來做到這一點。

這是我現在的函數，它可以獲取字段集，但是我能夠在不管深度如何獲得任何錯誤並保持位置（鍵）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(); 
         } 
        } 
       } 
      } 
     } 
    } 

它可能看起來像：

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; 
    } 

任何幫助，將不勝感激:)

Answer 1

Symfony provides a function for this

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