PHP code example of vulcandigital / silverstripe-formpreserve

1. Go to this page and download the library: Download vulcandigital/silverstripe-formpreserve library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

vulcandigital / silverstripe-formpreserve example snippets


class YourForm extends Form 
{
    private static $extensions = [
        FormPreserveExtension::class
    ];
    
    public function __construct(RequestHandler $controller = null, $name = self::DEFAULT_NAME, FieldList $fields = null, FieldList $actions = null, $validator = null)
    {
        /** @var ArrayData $preserved */
        $preserved = $this->retrievePreserved();

        $fields = FieldList::create([
            TextField::create('FirstName', 'First name:', $preserved->FirstName)->setAttribute('

class ContactPageController extends \PageController 
{
   public function doSubmit($data, Form $form)
    {
        FormPreserve::preserve($form, $data);

        if (!isset($data['Email']) || !filter_var($data['Email'], FILTER_VALIDATE_EMAIL)) {
            return $this->redirectBack();
        }

        FormPreserve::clear($form);
        return $this->redirectBack();
    }
}