Codeigniter Form Validation - how to unset form values after success?

Question

I realise this request goes against the example provided in the CI documentation (which advises a separate \'success\' page view), but I would like to reutilise a given form

Answer 1

The set_value function fetches its value from the Form_validation object and not from the $_POST array. The Form_validation object stores its own copy of the posted values in a variable called $_field_data.

Its a hack, but you could clear this variable after handling a successful submission :

class Item extends Controller
{
    function Item()
    {
        parent::Controller();
        $this->load->model('item_model');
    }

    function add()
    {
        $this->load->library('form_validation');
        $this->form_validation->set_rules('name', 'name', 'required');

        $success = false;

        if ($this->form_validation->run())
        {
            $this->item_model->add_item($this->input->post('name'));
            $success = true;

            // Look away now. Hack coming up!
            // Clear the form validation field data
            $this->form_validation->_field_data = array();
        }

        $this->load->view('item/add', array('success' => $success));
    }
}