Access POST values in Symfony2 request object

问题:

OK, this is a newbie question, but I can't find the answer anywhere. In a controller in Symfony2, I want to access the POST value from one of my forms. In the controller I have:

public function indexAction()
{ 
    $request = $this->get('request');
    if ($request->getMethod() == 'POST') {
        $form = $this->get('form.factory')->create(new ContactType());
        $form->bindRequest($request);
        if ($form->isValid()) {
            $name_value = $request->request->get('name');

Unfortunately $name_value isn't returning anything. What am I doing wrong? Thanks!

回答1:

Symfony 2.2

this solution is deprecated since 2.3 and will be removed in 3.0, see documentation

$form->getData();

gives you an array for the form parameters

from symfony2 book page 162 (Chapter 12: Forms)

[...] sometimes, you may just want to use a form without a class, and get back an array of the submitted data. This is actually really easy:

public function contactAction(Request $request) {
  $defaultData = array('message' => 'Type your message here');
  $form = $this->createFormBuilder($defaultData)
  ->add('name', 'text')
  ->add('email', 'email')
  ->add('message', 'textarea')
  ->getForm();
  if ($request->getMethod() == 'POST') {
    $form->bindRequest($request);
    // data is an array with "name", "email", and "message" keys
    $data = $form->getData();
  }
  // ... render the form
}

You can also access POST values (in this case "name") directly through the request object, like so:

$this->get('request')->request->get('name');

Be advised, however, that in most cases using the getData() method is a better choice, since it returns the data (usually an object) after it's been transformed by the form framework.

When you want to access the form token, you have to use the answer of Problematic $postData = $request->request->get('contact'); because the getData() removes the element from the array

---

Symfony 2.3

since 2.3 you should use handleRequest instead of bindRequest:

 $form->handleRequest($request);

see documentation

回答2:

The form post values are stored under the name of the form in the request. For example, if you've overridden the getName() method of ContactType() to return "contact", you would do this:

$postData = $request->request->get('contact');
$name_value = $postData['name'];

If you're still having trouble, try doing a var_dump() on $request->request->all() to see all the post values.

回答3:

what worked for me was using this:

$data = $request->request->all();
$name = $data['form']['name'];

回答4:

There is one trick with ParameterBag::get() method. You can set $deep parameter to true and access the required deep nested value without extra variable:

$request->request->get('form[some][deep][data]', null, true);

Also you have possibility to set a default value (2nd parameter of get() method), it can avoid redundant isset($form['some']['deep']['data']) call.

回答5:

The field data can be accessed in a controller with: Listing 12-34

$form->get('dueDate')->getData();

In addition, the data of an unmapped field can also be modified directly: Listing 12-35

$form->get('dueDate')->setData(new \DateTime());

page 164 symfony2 book(generated on October 9, 2013)

回答6:

I access the ticketNumber parameter for my multipart post request in the following way.

$data = $request->request->all();
$ticketNumber = $data["ticketNumber"];

回答7:

I think that in order to get the request data, bound and validated by the form object, you must use :

$form->getClientData();

回答8:

If you are newbie, welcome to Symfony2, an open-source project so if you want to learn a lot, you can open the source !

From "Form.php" :

getData() getNormData() getViewData()

You can find more details in this file.