I an using the symfony form to create a form and validate it. But i want to pre-validate the form on page loading itself ie. validate the form without post. Is it possible to do it in symfony?.
I have tried to use $form1->isValid(); on the else part of post. But its not working.
Also I tried to use the submit(),
$data = $form1->getData();
$form1->submit($data);
$form1->isValid();
but with no success
*the form fields are dynamic and the validations are also dynamic. So a form that is preloaded can have error fields.
What you can do is for sure manual Entity Validation. I can imagine cases when you can't trust data already saved in database or, you want to pre-fill object with data from other source (external request response) before giving it for user to edit.
Please read docs about validation here: http://symfony.com/doc/current/book/validation.html
Possible code:
$author = new Author();
// ... do something to the $author object
$validator = $this->get('validator');
$errors = $validator->validate($author);
In this case you don't use constraints from FormType but validator constraints (they can be declared in entity - they will be used also by FormType): http://symfony.com/doc/current/book/validation.html#constraints
Related
I'm trying to validate submitted data against existing Model/Entity/POPO, however I can't get it to work in any simple way.
All of this is takes place inside a controller action.
So, I can do like this:
$constraints = new Assert\Collection([
'username' => [new Assert\NotBlank()],
'email' => [new Assert\Email()],
]);
$violationList = $this->get('validator')->validate($request->request->all(), $constraints);
However to do that in every action makes no sense, as having all constraints in a class would be a lot better. So, Validation component allows to do like this:
// All constraints are defined inside Customer class
$customer = new Customer();
$violationList = $this->get('validator')->validate($customer);
Violation list is full of errors now, as $customer is an empty object, but the problem is I can't find a way to use data from POST AND validate it against constraints that are defined in the class.
It is possible to write extra component/helper that would take POST data and then will call bunch of ->setUsername(), ->setEmail(), etc., but that doesn't seem right considering you can easily map Model to POST data, if:
Form component is involved;
OR using ConstraintsCollection manually;
Am I missing something obvious here or there is no out-of-the-box possibility? Thanks!
AFAIK the form component is the one responsible for mapping post data to your entity. So you have two choices
Use a form, like that you will have your data mapped and your model validated
Skip the form but then you have to map request params to your entity manually. then validate your model with $this->get('validator')->validate($customer);
Edit :
The form role is to map data coming from request ( html form , api .... ) to a model. Validation could be done with from or without it as its the validator component who does the job , it should be noted that the validation is done on the model and not the form.
If you want to skip the form check this question: Populate entity from data array without form/request although the form component is very useful specially if you are using the same logic in many places ( create / edit .. )
I am using the FOSUserBundle and have overwritten the RegistrationController. When the form is submitted and valid, I want to get the email address the user entered in the registration form.
But I don't see any way to get it. As taken from the Symfony2 forms documentation, you can get form data like this:
$this->get('request')->request->get('name');
But the RegistrationController does not know the get() method (as it's not inherited from the Symfony2 controller entity). So I could go like this:
// Note the ...->container->...
$this->container->get('request')->request->get('name');
But this returns NULL. Now I try to get it from the $form.
// Does contain a lot of stuff, but not the entered email address
$form->get('email');
// Does also contain a lot of stuff, but not the desired content
$request->get('email');
$request->request('email');
// Throws error message: No method getData()
$request->getData();
Any idea?
It's really, really simple. You create a form with related entity. In FOSUserBundle you should have a RegistrationFormHandler, and in process method you've got:
$user = $this->createUser();
$this->form->setData($user);
if ('POST' === $this->request->getMethod()) {
$this->form->bind($this->request);
if ($this->form->isValid()) /**(...)**/
After the line $this->form->bind($this->request) every value in $user object is overwritten by data from form. So you can use $user->getEmail().
On the other hand you are able to get data directly from request, but not by the property name, but by form name. In FOSUserBundle registration form it is called fos_user_registration - you can find it in FOS/UserBundle/Form/Type/RegistrationFormType.php in getName method.
You get it by:
$registrationArray = $request->get('fos_user_registration');
$email = $registrationArray['email'];
If you were to use Controller as a Service (which should work with this), you could pass the RequestStack (sf >=2.4) in the constructor and do $this->request_stack->getCurrentRequest()->get();
My guess is that you are trying to get the POST data. You are trying to put the data in a form object I presume. I would recommend you to take a look at: http://symfony.com/doc/current/book/forms.html if you have a custom form.
As regarding to your question, the form is probably containing a name. If you want to have direct access to it instead of doing things in your form, you need to fetch it multilevel if directly via the true at $deep, get('registration_form_name[email]', null, true); You can also do $email = $request->get('registration_form_name')['email']; (if you have php 5.4+)
Let say I have an HTML form with bunch of fields. Some fields belong to Product, some to Order, some to Other. When the form is submitted I want to take that request and then create Symfony forms for Product, Order, and Other in controller. Then I want to take partial form data and bind it with appropriate forms. An example would something like this:
$productArray = array('name'=>$request->get('name'));
$pf = $this->createForm(new \MyBundle\Form\ProductType(), $product);
$pf->bind($productArray);
if($pf->isValid()) {
// submit product data
}
// Do same for Order (but use order data)
// Do same for Other (but use other data)
The thing is when I try to do it, I can't get $form->isValid() method working. It seems that bind() step fails. I have a suspicion that it might have to do with the form token, but I not sure how to fix it. Again, I build my own HTML form in a view (I did not use form_widget(), cause of all complications it would require to merge bunch of FormTypes into one somehow). I just want a very simple way to use basic HTML form together with Symfony form feature set.
Can anyone tell me is this even possible with Symfony and how do I go about doing it?
You need to disable CSRF token to manually bind data.
To do this you can pass the csrf_protection option when creating form object.
Like this:
$pf = $this->createForm(new \MyBundle\Form\ProductType(), $product, array(
'csrf_protection' => false
));
I feel like you might need a form that embed the other forms:
// Main form
$builder
->add('product', new ProductType)
->add('order', new OrderType);
and have an object that contains association to these other objects to which you bind to the request. Like so you just have to bind one object with the request and access embedded object via simple getters.
Am I clear enough?
I need to create a form where the elements (texbox, select, ..) will be dynamically inserted. Right now I have created a empty Form file with just a hidden element and them in my controller I go inserting elements according to certain conditions.
My form file:
class Form_Questions extends Zend_Form {
public function __construct() {
parent::__construct($options);
$this->setName('Questions');
// Hidden Label for error output
$hiddenlabel = new Zend_Form_Element_Hidden('hiddenlabel');
$hiddenlabel->addDecorator(new Form_Decorator_HiddenLabel());
$this->addElements( array($hiddenlabel) );
}
}
In the controller I have something like:
...
$form = new Form_Questions();
$request = $this->getRequest();
if ($request->isPost())
{
$formData = $request->getPost();
if ($form->isValid($request->getPost()))
{
die(var_dump($form->getValues()));
}
}
else
{
//... add textbox, checkbox, ...
// add final submit button
$btn_submit = new Zend_Form_Element_Submit('submit');
$btn_submit->setAttrib('id', 'submitbutton');
$form->addElement($btn_submit);
$this->view->form = $form;
}
The form displays fine but the validation is giving me big trouble. My var_dump() only shows the hidden element that is staticly defined in the Form file. It does not save the dinamic elements so altought I can get them reading what's coming via POST, I can not do something like
$form->getValue('question1');
It behaves like if Zend uses the Form file to store the values when the submit happend, but since the elements are created dinamically they do not persist (either their values) after the post so I can not process them using the standar getValue() way.
I would appreciate any ideas on how to make them "live" til after the post so I can read them as in a normal form.
The form which you are calling isValid() and getValues() methods on is actually your "empty" form - you have instantiated it only a few lines up and haven't added any elements to it at that point.
Remember that POST only sends an array of fieldName => fieldValue type, it doesn't actually send a Zend_Form object.
It is difficult to suggest a new solution without knowing what you are trying to achieve. It is generally better to add all possible elements to your Zend_Form right away, and then only use the ones you need in the view scripts, i.e. echo $this->form->myField;. This will allow isValid() to process all the elements of the form.
It sounds like the form is dynamic in the sense that the questions come from a db, not in then sense that the user modifies the form itself to add new questions.
Assuming this is the case, then I wouldn't add the question fields in the controller. Rather, I'd pass the questions to the form in the constructor and then add the question fields and the validators in the form's init() method. Then in the controller, just standard isPost() and isValid() processing after that.
Or, if you are saying that the questions to be added to the form are somehow a consequence of the hidden label posted, then perhaps you need two forms and two actions: one for the hidden field form and another for the questions.
Ok, the simplest solution I came up with - to my case and considering the really of the code I am currently playing with was to load all the questions I need from the database using a method from my Model (something like fetchQuestions()), them in my controller I go throught the recordset and create the form elements according to the current question of the recordset.
The elements are stacked in an array that is passed to my Form constructor. In the form constructor I read the array and generate all the dynamic elements. I them just echoed the form to the view.
I have not seem why it would be a bad idea to override the Form constructor as I also could not use any of the set/get methods to pass this to my form.
I would like to validate an embedded form field before it gets saved in the database. Currently it will save an empty value into the database if the form field is empty. I'm allowing empty fields, but I want nothing inserted if the form field is empty.
Also quick question, how to alter field values before validating/saving an embedded form field?
$this->form->getObject works in the action, but $this->embeddedForm->getObject says object not found
I found a really easy solution. The solution is to override your Form's model class save() method manually.
class SomeUserClass extends myUser {
public function save(Doctrine_Connection $conn = null)
{
$this->setFirstName(trim($this->getFirstName()));
if($this->getFirstName())
{
return parent::save();
}else
{
return null;
}
}
}
In this example, I'm checking if the firstname field is blank. If its not, then save the form. If its empty, then we don't call save on the form.
I haven't been able to get the validators to work properly, and this is an equally clean solution.
Symfony gives you a bunch of hooks into the form/object saving process.
You can overwrite the blank values with null pre/post validation using by overriding the the doSave() or processValues() functions of the form.
You can read more about it here: http://www.symfony-project.org/more-with-symfony/1_4/en/06-Advanced-Forms#chapter_06_saving_object_forms