Redirect , POST and Flashdata issue in Codeigniter - codeigniter

Question

i am developing an application where i need some suggestions. Here is the detail of the problem.
public function form()
{
$this->load->helper('inflector');
$id = $this->uri->segment(3,0);
if($data = $this->input->post()){
$result = $this->form_validation->run();
if($result){
if($id > 0){
// here update code
}else{
$this->mymodel->insert($data);
$this->session->set_flashdata('message','The page has been added successfully.');
$this->redirect = "mycontroller/index";
$this->view = FALSE;
}
}else{
//$this->call_post($data);
$this->session->set_flashdata('message','The Red fields are required');
$this->view = FALSE;
$this->redirect = "mycontroller/form/$id";
}
}else{
$row = $this->mymodel->fetch_row($id);
$this->data[]= $row;
}
}
public function _remap($method, $parameters)
{
if (method_exists($this, $method))
{
$return = call_user_func_array(array($this, $method),$parameters);
}else{
show_404();
}
if(strlen($this->view) > 0)
{
$this->template->build('default',array());
}else{
redirect($this->redirect);
}
}
Here you can see how i am trying to reload the page on failed validation.
Now the problem is that i have to display the flash data on the view form which is only available after redirect and i need to display the validation errors to which are not being displayed on redirect due to the loss of post variable. If i dont use redirect then cant display flashdata but only validation errors. I want both of the functionalities togather. I have tried even creating POSt again like this
public function call_post($data)
{
foreach($data as $key => $row){
$_POST[$key] = $row;
}
}
Which i commented out in the formmethod.How can i achieve this.

Answer 1

Here's a thought.
I think you can add the validation error messages into the flash data. Something like this should work:
$this->session->set_flashdata('validation_error_messages',validation_errors());
Notice the call to the validation_errors function. This is a bit unconventional, but I think it should work. Just make sure that the code are executed after the statement $this->form_validation->run(); to make sure the validation error messages are produced by the Form Validation library.

Answer 2

well i have little different approach hope will help you here it is
mycontroller extend CI_Controller{
function _remap($method,$params){
switch($method){
case 'form':
$this->form($params);
break;
default:
$this->index();
break;
}
}
function form(){
$this->load->helper('inflector');
$id = $this->uri->segment(3,0);
$this->form_validation->set_rules('name','Named','required|trim');
$this->form_validation->set_rules('email','email','required|valid_email|trim');
// if validation fails and also for first time form called
if(!$this->form_validation->run()){
$this->template->build('default',array());
}
else{ // validation passed
$this->save($id)
}
}
function save($id = 0){
$data = $this->input->post();
if($id == 0){
$this->mymodel->insert($data);
$this->session->set_flashdata('message','The page has been added successfully.');
$this->redirect = "mycontroller/index";
$this->view = FALSE;
}else{
// update the field
$this->session->set_flashdata('message','The Red fields are required');
}
redirect("mycontroller/index");
}
}
your form/default view should be like this
<?
if(validation_errors())
echo validation_errors();
elseif($this->session->flashdata('message'))
echo $this->session->flashdata('message');
echo form_open(uri_string());// post data to same url
echo form_input('name',set_value('name'));
echo form_input('email',set_value('email'));
echo form_submit('submit');
echo form_close();
try it if you face any problem post here.