A code snippet showing the implementation of the 'Edit Listing' form in the Contributor Maps module

gistfile1.php

        public function RegistrationForm() {
            // ...
            $session = Session::get("FormInfo.RegistrationForm_Edit.data");
            if($key && $token) {
                echo "test";
                $memory = ContributorMaps_Data::get()->filter(array(
                    'Unique_Key' => $key,
                    'EditToken' => $token,
                    'EditTokenExpires:GreaterThanOrEqual' => date('Y-m-d')
                ))->First();
                if(!$memory) {
                    return $this->redirect($this->Link("?action=edit&status=2"));
                }
            }else if(Session::get("FormInfo.RegistrationForm_Edit.data")) {
                echo "Lorem ipsum blablabla";
            }
            // ...
        }
        public function processEditForm($data, $form) {
                // ...
                if($errors > 0) {
                    //Session::set("FormInfo.{$form->FormName()}_Edit.data", $data);
                    Session::set("FormInfo.RegistrationForm_Edit.data");
                    return $this->redirect($this->Link("?registered=3"));
                }else{
                    $entry->write();
                    return $this->redirect($this->Link("?action=edit&status=4"));
                }
            // ...
        }