如何在symfony中返回json编码的表单错误

I want to create a webservice to which I submit a form, and in case of errors, returns a jason encoded list that tells me which field is wrong.

我想创建一个webservice，我向它提交一个表单，如果出现错误，返回一个jason编码的列表，该列表告诉我哪个字段是错误的。

currently I only get a list of error messages but not an html id or a name of the fields with errors

目前，我只得到一个错误消息列表，但没有一个html id或带有错误的字段名

here's my current code

这是我当前的代码

public function saveAction(Request $request)
{
    $em = $this->getDoctrine()->getManager();

    $form = $this->createForm(new TaskType(), new Task());

    $form->handleRequest($request);

    $task = $form->getData();

    if ($form->isValid()) {

        $em->persist($task);
        $em->flush();

        $array = array( 'status' => 201, 'msg' => 'Task Created'); 

    } else {

        $errors = $form->getErrors(true, true);

        $errorCollection = array();
        foreach($errors as $error){
               $errorCollection[] = $error->getMessage();
        }

        $array = array( 'status' => 400, 'errorMsg' => 'Bad Request', 'errorReport' => $errorCollection); // data to return via JSON
    }

    $response = new Response( json_encode( $array ) );
    $response->headers->set( 'Content-Type', 'application/json' );

    return $response;
}

this will give me a response like

这会给我一个类似的回答

{
"status":400,
"errorMsg":"Bad Request",
"errorReport":{
        "Task cannot be blank",
        "Task date needs to be within the month"
    }
}

but what I really want is something like

但我真正想要的是

{
"status":400,
"errorMsg":"Bad Request",
"errorReport":{
        "taskfield" : "Task cannot be blank",
        "taskdatefield" : "Task date needs to be within the month"
    }
}

How can I achieve that?

我怎么才能做到呢?

4 个解决方案

#1

I am using this, it works quiet well:

我正在使用这个，它运行得很好:

/**
 * List all errors of a given bound form.
 *
 * @param Form $form
 *
 * @return array
 */
protected function getFormErrors(Form $form)
{
    $errors = array();

    // Global
    foreach ($form->getErrors() as $error) {
        $errors[$form->getName()][] = $error->getMessage();
    }

    // Fields
    foreach ($form as $child /** @var Form $child */) {
        if (!$child->isValid()) {
            foreach ($child->getErrors() as $error) {
                $errors[$child->getName()][] = $error->getMessage();
            }
        }
    }

    return $errors;
}

#2

I've finally found the solution to this problem here, it only needed a small fix to comply to latest symfony changes and it worked like a charm:

我终于在这里找到了这个问题的解决方案，它只需要一个小的修正就可以满足最新的symfony变化，它像一个魅力:

The fix consists in replacing line 33

修复在于替换第33行

if (count($child->getIterator()) > 0) {

with

与

if (count($child->getIterator()) > 0 && ($child instanceof \Symfony\Component\Form\Form)) {

because, with the introduction in symfony of Form\Button, a type mismatch will occur in serialize function which is expecting always an instance of Form\Form.

因为，随着表单\按钮的symfony的引入，串行化函数将出现类型不匹配，而串行化函数总是期望表单\表单的实例。

You can register it as a service:

你可将其注册为服务:

services:
form_serializer:
    class:        Wooshii\SiteBundle\FormErrorsSerializer

and then use it as the author suggest:

然后按照作者的建议使用它:

$errors = $this->get('form_serializer')->serializeFormErrors($form, true, true);

#3

This does the trick for me

这对我有好处。

 $errors = [];
 foreach ($form->getErrors(true, true) as $formError) {
    $errors[] = $formError->getMessage();
 }

#4

PHP has associative arrays, meanwhile JS has 2 different data structures : object and arrays.

PHP有关联数组，而JS有两个不同的数据结构:对象和数组。

The JSON you want to obtain is not legal and should be :

您想要获得的JSON是不合法的，应该是:

{
"status":400,
"errorMsg":"Bad Request",
"errorReport": {
        "taskfield" : "Task cannot be blank",
        "taskdatefield" : "Task date needs to be within the month"
    }
}

So you may want to do something like this to build your collection :

所以你可能想做这样的事情来建立你的收藏:

$errorCollection = array();
foreach($errors as $error){
     $errorCollection[$error->getId()] = $error->getMessage();
}

(assuming the getId() method exist on $error objects)

(假设getId()方法存在于$error对象上)

#1