Best way to validate a form

Honestly,

I've found the easiest way is to create a form that extends \Phalcon\Forms\Form:

Example of a very simple login form. You can add extra security as you see fit but this is just an example:

<?php
/**
* Login Form
* File: /my/app/path/library/App/Forms/LoginForm.php
*/

    namespace App\Forms;

    use Phalcon\Forms\Form,
    Phalcon\Forms\Element\Text,
    Phalcon\Forms\Element\Password;

    use Phalcon\Validation\Validator\Identical;
    use Phalcon\Validation\Validator\PresenceOf;

    class LoginForm extends Form {

        public function initialize()
        {
            $this->setEntity($this);

            $email_address = new Text("email_address");
            $email_address->addValidator(new PresenceOf(array(
                'message' => 'Email Address is required'
            )));
            $email_address->setAttribute('class','form-control');

            $password = new Password('password');
            $password->setAttribute('class','form-control');
            $password->addValidator(new PresenceOf(array(
                'message' => 'Password is required'
            )));

            $this->add($email_address);
            $this->add($password);
        }
    }

Then in your controller:

    <?php
/**
* Auth Controller
* File: /my/app/path/apps/frontend/controllers/AuthController.php
*/

    namespace App\Frontend\Controllers;

    use App\Forms\LoginForm;

    class AuthController extends ControllerBase
    {

        public function loginAction()
        {

            $form = new LoginForm();

            // Check to see if this is a POST request
            if($this->request->isPost())
            {

                // Validate the form data posted
                if(!$form->isValid($this->request->getPost())){

                    // If the form failed validation, add the errors to the flash error message.
                    foreach($form->getMessages() as $message){
                        $this->flash->error($message->getMessage());
                    }

                } else {

                    // Form was validated successfully. Lets try to login
                    $email    = $this->request->getPost('email_address', 'email');
                    $password = $this->request->getPost('password');

                    $login = \App\Users::authenticate($email, $password);

                    if ($login) {
                        // Success! Set your session data here

                    } else {
                        // Login Failed!
                        $this->flash->error('Invalid Login Details');

                    }
                }

            }

            // Send the form to the view.
            $this->view->form = $form;
        }

    }

And for your view:

<!--
Login View
File: /my/app/path/apps/frontend/views/auth/login.volt
-->

<form method="post" action="/post/url/here">
<label for="email_address">Email Address: </label>
{{ form.render('email_address') }}
<label for="password">Password: </label>
{{ form.render('password') }}
</form>

Good morning Steven,

thx i will try it, now it is clearer for me :-)

Is the action url, the url to AuthController.php?

Rgds

Stefan

Hi Stefan,

Yes, the action url is the url to the AuthController.php in my case I setup my route like this:

$router->add('/login',[
    'namespace' => 'App\Frontend\Controllers',
    'module' => 'frontend',
    'controller' => 'auth',
    'action' => 'login',
])->setName('login');

Hi Steven,

it is chaos in my head :-))) But i never give up!!!

I tested your way yesterday, but i've got an error. Undefinied variable form and render() not found. The form is also not displayed.

Rgds

Stefan