gistfile1.php

<?php
/**
 * User registration
 *
 * @param int Step
 * @return void
 */
    public function register($step = 1)
    {
        $first = 1;
        $last = 2;

        if ($this->Session->read('Registration.step'))
        {
            // Get Registration step
            $sess_step = min( max ( (int) $this->Session->read('Registration.step'), $first), $last);

            // Get Current step
            $step = min(max( (int) $step, $first), $sess_step);
        }
        else
        {
            // No session, start registration all over
            return $this->redirect('/users/register/1');
        }

        if ($this->request->is('post'))
        {
            // Step 1 and Step 2 of the registration wizard
            switch ($step)
            {
                case 1: // Step 1: User
                    {
                        // Set default User.Group as Clientes
                        $this->request->data['User']['group_id'] = 2;

                        // Generate and assign a token used for activating the account
                        $this->request->data['User']['is_active'] = false;
                        $this->request->data['User']['activation_token'] = User::generateToken();

                        // Create User model from form data
                        $this->User->create($this->request->data);

                        // Check if User model validates
                        if ($this->User->validates())
                        {
                            // Store form fields
                            $this->Session->write('Registration.User', $this->request->data['User']);

                            // Advance to the next step
                            $this->Session->write('Registration.step' , 2);
                            $this->redirect('/users/register/2');
                        }
                        else
                        {
                            $this->Session->setFlash(__('Por favor llene correctamente los campos.'));
                        }
                    }
                    break;
                case 2: // Step 2: Profile
                    {
                        // Check if User already exists and if so, redirecty appropiately
                        $user = $this->Session->read('Registration.User');
                        if (!empty($user['id'])) {

                            // User exists...
                            $this->User->id = $user['id'];
                            if ($this->User->field('is_active'))
                            {
                                // User active, send to login
                                $this->Session->setFlash(__('Su usuario ya está activo. Ya puede iniciar sesión.'));
                                return $this->redirect('/users/login');
                            }
                            else
                            {
                                // User inactive, send to activation screen
                                return $this->redirect('/users/activate/' . $user['id']);
                            }
                        }

                        $this->Profile->create($this->request->data);
                        if ($this->Profile->validates())
                        {
                            // Store Profile form fields
                            $this->Session->write('Registration.Profile', $this->request->data['Profile']);

                            // Create User & profile objects
                            $this->User->create($this->Session->read('Registration.User'));
                            $this->Profile->create($this->request->data['Profile']);

                            // Get data source
                            $datasource = $this->User->getDataSource();

                            // Begin transaction
                            $datasource->begin();
                            try
                            {
                                // Save profile
                                $saved_profile = $this->Profile->save();
                                $profile_id = $this->Profile->getID();

                                // Save user
                                $this->User->data['User']['profile_id'] = $profile_id;
                                $saved_user = ($saved_profile) ? $this->User->save() : false;
                                
                                $user_id = $this->User->getID();

                                // Commit if models saved successfully
                                if ($saved_user && $saved_profile)
                                {
                                    $datasource->commit();

                                    // Update Session
                                    $this->Session->write('Registration.Profile.id', $profile_id);
                                    $this->Session->write('Registration.User.id', $user_id);
                                    $this->Session->write('Registration.step', 3);

                                    // Set flash message
                                    $this->Session->setFlash(__('Su cuenta ha sido creada satisfactoriamente.'));
                                    
                                    $username = $this->Session->read('Registration.User.username');
                                    $activation_token = $this->Session->read('Registration.User.activation_token');

                                    // Send activation e-mail
                                    CakeEmail::deliver($username, 'Activa tu cuenta en MasPorMenos',
                                        'Tu código de activación es: ' . $activation_token, 'smtp');
                                    
                                    $this->redirect('/users/activate/' . $user_id);
                                }
                                else
                                {
                                    $datasource->rollback();
                                    $this->Session->setFlash(__('No se pudo crear la cuenta. Por favor intente más tarde. 0x0001'));
                                }
                            }
                            catch(Exception $e)
                            {
                                CakeLog::error($e->getMessage());
                                $datasource->rollback();
                                $this->Session->setFlash(__('No se pudo crear la cuenta. Por favor intente más tarde. 0x0002'));
                            }
                        }
                        else
                        {
                            $this->Session->setFlash(__('Por favor llene los campos correctamente.'));
                        }
                    }
                    break;
                case 3:
                    {
                        $user_id = $this->Session->read('Registration.User.id');
                        $this->redirect('/users/activate/' . $user_id);
                    }
                    break;
            }
        }

        // Set Registration for the View
        $this->set('user', $this->Session->read('Registration.User'));
        $this->set('profile', $this->Session->read('Registration.Profile'));
        
        // Render appropiate view
        $this->render('register_step' . $step);
    }