codeigniter flashdata

[TheServant]

Can anyone tell me why flashdata is not immediately available? Is it only available once the page has been resent? I am using form validation for form fields and flashdata for error messages. If there is an error I want the fields to be filled in with the $_POST data, which CI does easily, however, the flashdata seems to only be recognised once I refresh (through redirect()) which destroys the $_POST data.

If I remove the redirect then validation errors and automatic re-entering of posted values works, but no flashdata message.

controlller:

// Validation rules
$this->form_validation->set_rules('name', 'username', 'required|alpha_dash');
$this->form_validation->set_rules('pass', 'password', 'required|alpha_dash');
 
// Check form has been submitted with valid form info
if ($this->form_validation->run()) {
    $name = $this->input->post('name');
    $pass = $this->input->post('pass');
 
    ...
 
    // Return if name and password was not found
    if ($check===FALSE) {
        $this->session->set_flashdata('message_type', 'warning');
        $this->session->set_flashdata('message', 'Username not found.');
    // Success
    } else {
        ...
        $this->session->set_flashdata('message_type', 'information');
        $this->session->set_flashdata('message', 'Logged in.');
    }
    // Success or fail redirect page
    redirect('user/login'); exit();
}
// Load Page
$this->load->view('v_user_login');
 

view:

<?php if($this->session->flashdata('message')) : ?>
    <div class="<?=$this->session->flashdata('message_type')?>">
        <h3><span>&nbsp;</span><?=$this->session->flashdata('message')?></h3>
    </div>
<?php endif; ?>
 
<h1>User Login</h1>
<?=form_open('user/login')?>
    <?=form_fieldset('Login Form')?>
 
        <div class="textfield">
            <?=form_label('Username','name')?>
            <?=form_input('name', set_value('name'))?>
            <?=form_error('name')?>
        </div>
 
        <div class="textfield">
            <?=form_label('Password', 'pass')?>
            <?=form_password('pass')?>
            <?=form_error('pass')?>
        </div>
 
        <div class="buttons">
            <?=form_submit('login', 'Login')?>
        </div>
 
    <?=form_fieldset_close()?>
<?=form_close()?>

[Markus]

Hi, The Servant - sorry for the late reply.

Yes, flash data is only available to the *next* server request.

For this instance, you might just set some dynamic object properties:

$this->message_type = ...
/** ... */
<?=$this->message_type;?>
 

[TheServant]

Thanks mate.

**************************

[Markus]

@TheServant
No problem, dude. BTW, to overcome that 'message too short' problem, just stick a lot of space between your words (the software isn't smart enough to strip it out - lol).

Thanks                                                   mate.