Multi step/page form in PHP & CodeIgniter

Question

I\'m trying to build a multi step/page form in PHP and CodeIgniter and I was wondering if any of you could help me.

How can I have a multi step form in CI that updat

Answer 1

I have a model to store my wizard data with a variable for each field on the form:

class Class_signup_data extends CI_Model {
const table_name="signups_in_progress";
public $market_segment; // there is a field named 'market_segment' in the wizard view

... ...

I have one controller to handle the whole process, with parameters for the session_id and the stage of the process we are at:

    class Signup extends CI_Controller {
    public function in_progress($session_id=NULL,$stage=1) {
        $this->index($session_id,$stage);
    }
    public function index($session_id=NULL,$stage=1) {
    if ($session_id===NULL) $session_id=$this->session->userdata('session_id');
...
...

In this controller I have a switch for which stage we are at - it looks for a 'Prev' button first:

switch ($stage) {
        case 2:
            if ($this->input->post('prev')) { // if they click Previuous, the validations DON'T need to be met:
                $signup_data->save_to_db(array_merge(array('ip'=>$_SERVER['REMOTE_ADDR'],'session_id'=>$session_id,'signup_stage' => '1',
                    'signup_complete' =>'0'),$this->input->post()),$this->db,$session_id);
                $this->load->helper('url');
                redirect("/signup/in_progress/".$session_id."/1");

And later in the switch I use CI's Validations to display a form and process 'Next' if it was clicked or it is just being called with /signup/in_progress/session/2:

    $this->form_validation->set_rules("your rules");
if ($this->form_validation->run() == FALSE) {
    $this->load->view('signupStage2',array('signup_data'=>$signup_data));
} else {
    $signup_data->save(array_merge(array('ip'=>$_SERVER['REMOTE_ADDR'],'session_id'=>$session_id,'signup_stage' => '3',
    'signup_complete' =>'0'),$this->input->post()),$this->db,$session_id);
    $this->load->helper('url');
    redirect("/signup/in_progress/".$session_id."/3");
};

At the bottom of each view (eg 'signupStage2.php') I have the prev and next buttons: