validation_errors() is breaking my view...

[eluser]theapache[/eluser]
Hey guys.

Ok, got a login form working great with the form validation library.

So I set up a function to allow users to create a folder in my app (it's a file host app) and I use the form validation library once again.

This is where the problem starts. The moment I put the validation_errors() call in my view, the view breaks and displays no output on render. Not only that, but the same thing happens to my login view which has the validation_errors() call. Displays nothing but fresh white space. It's like the function call in one view is breaking the function call in another view... So weird!

The moment I remove the validation_errors() call from either view, both render fine.

Has anyone run across this happening in their app?

Just for a little background info, both forms have their own controller and the form validation library is loaded and run in separately in each respective controller.

Thanks for any help!

[eluser]xzela[/eluser]
Could you post the part of your controller which validates the post? It sounds like there a problem with the placement of your $this->load->view().

What's most likely the issue is that there is an conditional case where the controller is not given the instructions to print a view.

That'd be my guess without seeing the code.

[eluser]theapache[/eluser]
It's a pretty simple function. I posted the relevant code snippets below.

Code:

class Filepit extends Controller {

    function Filepit()
    {
        parent::Controller();
        $this->load->helper('url');    
        $this->load->library('session');
        $this->load->model('Users');
        $this->load->model('Files');
        $this->load->model('Folders');
    }


    
    ...
    


    function show_create_folder_form()
    {
        $this->load->view('header');
        $this->load->view('forms/new_folder');
        $this->load->view('footer');
    }
    
    function do_create_folder()
    {
        $user_id = $this->uri->segment(3);
        
        $this->load->library('form_validation');
        $this->form_validation->set_rules('folder_name', 'Folder name', 'trim|required|alpha_numeric');
        
        if ($this->form_validation->run() == FALSE)
        {
            $this->load->view('header');
            $this->load->view('forms/new_folder');
            $this->load->view('footer');
        }
        else
        {    
            if ($this->Users->create_folder_for_user($user_id, $this->input->post('folder_name')))
            {
                $this->session->set_userdata('msg', 'Your folder was created successfully.');
                redirect('folder/all_files');
            }
        }
    }



        ...
    
}

show_create_folder_form is called when a user clicks the *new folder* button. And then depending on whether or not the validation_errors() call is in the new_folder view, that page will load or not. When I take the call out the view loads up. But when it's in, nothing is rendered.

Here's the view:

Code:

&lt;?php if (isset($msg)): ?&gt;<p>&lt;?php echo $msg; ?&gt;</p>&lt;?php endif; ?&gt;
&lt;?php echo validation_errors(); ?&gt;
&lt;form id="new_folder" action="&lt;?php echo site_url('filepit/do_create_folder/' . $this-&gt;session->userdata('user_id')); ?&gt;" method="post">
    <fieldset>
        &lt;input type="text" id="folder_name" name="folder_name" /&gt;
        <label for="folder_name"><small><em>Folder name</em></small></label>
        &lt;input type="submit" class="submit" value="Create it" /&gt;
    </fieldset>
&lt;/form&gt;

Interestingly, if I put the validation_errors call below the form, the header & footer view will not load at all, but the new_folder form will.

[eluser]xzela[/eluser]
One quick question: Do you have PHP error messages turned on? I bet that blank page is an error message, but because PHP is set to not show errors, you don see anything. This would explain why the views are unexpectedly breaking.

[eluser]evolutionxbox[/eluser]
I think xzela is correct... also try setting the error delimiters to be div's or something simple so you know it cannot be that.

[eluser]Zack Kitzmiller[/eluser]
Where are you setting $msg? I don't see that in your code anywhere.

All I see is you setting the session variable 'msg'.

[eluser]theapache[/eluser]
Morning guys,

Just took a look at this again and it's still pretty much acting the same.

@xzela: My error reporting has been set at 4 and no errors have been logged at any time.

@evolution: I tried setting the delimiters to divs just for the heck of it, but no difference.

@techneke: Ahh thank you for mentioning this. I must have placed the $msg print statement in the view by mistake before adding the validation_errors call in and just left it there thinking it was necessary. The only time 'msg' is set in the session is when a folder is successfully created on the server, then the user is redirected to a different controller (folder/all_files) and this controller checks to see if 'msg' is set in the session, and if so places it in the data array and passes it to my main app view.