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