Symfony 形式的递归循环 children

Question

我正在尝试构建一种方法，将 Symfony 表单错误转换为可以序列化的多维数组。

目前我只有一个表单中的一个表单（一个字段集类型）。我创建了一个新系统，用于在表单中嵌入 N 个表单。我需要能够遍历所有有错误的 children 来填充 $errors 数组。

我需要跟踪深度或我走过的距离。

例如，表单中的表单将是 $errors[depth1][depth2]['message']。具有多个嵌入表单（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)] 将替换为当前表单名称。

最干净的方法是什么。

这是我当前获取字段集的函数，但我是否能够在不考虑深度的情况下获取任何错误并保持位置（键）完好无损？

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);

Symfony 形式的递归循环 children

Recursive loop over Symfony form children

php

recursion

symfony-forms

symfony