Provides use reCAPTCHA as form field.

Installation

Add RecaptchaBundle to your src/Bundle dir

You can download it from here http://excelwebzone.github.com/RecaptchaBundle

Add RecaptchaBundle to your application kernel:

// app/AppKernel.php
public function registerBundles()
{
    return array(
        // ...
        new EWZ\RecaptchaBundle\EWZRecaptchaBundle(),
        // ...
    );
}

Add the EWZ namespace to your autoloader:

// app/autoload.php
$loader->registerNamespaces(array(
    ...
    'EWZ' => __DIR__.'/../src',
));

Add your private and public key for reCAPTCHA in configuration file:

If you use secure url for reCAPTCHA put true in secure.

// app/config/config.yml
framework:
    ...
    validation:
        enabled: true
        annotations:
            namespaces:
                recaptcha: EWZ\RecaptchaBundle\Validator\Constraints\

...

ewz_recaptcha:
    pubkey:   here_is_your_publick_key
    privkey:  here_is_your_private_key
    secure:   true

Use in forms

In your form class add following lines

use use EWZ\RecaptchaBundle\Form\RecaptchaField;

When you create form (if you create it in separated class not in the controller) you need pass container into the method that preparing form.

Let's see how it works.

In the controller we have some action. In this action we try to create the form.

public function someAction(){
    ...
    $form = new RegisterForm('register');
    // init values
    $form->get('recaptcha')->setScriptURLs($this->container);
    ...
}

In the Register form class

protected function configure()
{
    ...
    $this->add(new RecaptchaField('recaptcha'));
    ...
}

Use in view

In template add following lines

<?php echo $view['form']->render($form['recaptcha'], array(
    'options' => array(
        'theme' => 'clean',
    ),
), array(), 'RecaptchaBundle:Form:recaptcha_field.html.php') ?>

Or using JavaScript

<div id="recaptcha-container"></div>
<script type="text/javascript">
    window.onload = function () {
        $.getScript("<?php echo $form['recaptcha']::RECAPTCHA_API_JS_SERVER ?>", function() {
            Recaptcha.create("<?php echo $form['recaptcha']->getPublicKey() ?>", "recaptcha-container", {
                theme: "clean",
            });
        });
    };
</script>