Problem with validation_errors

[eluser]Unknown[/eluser]
Hi everyone!
I am new at CI and total noob, so this question maybe is stupid, but I don't get it. I created simple app for adding comments to news. Problem is, when somebody submit empty fields, error messages don't show. I used "echo validation_errors();". Can you help me to get this work?

Code:

<?php // SHOW FORM FOR COMMENTS // ?>

<div>&lt;?php echo validation_errors(); ?&gt;</div>

&lt;?php echo form_open('news/comment_insert'); ?&gt;
    <div>&lt;?php echo form_hidden('news_id', $this->uri->segment(3)); ?&gt;</div>
    <div>&lt;?php echo form_input(array('name' => 'author', 'type' => 'text', 'class' => 'font')); ?&gt;</div>
    <div>&lt;?php echo form_textarea(array('name' => 'body', 'rows' => '10', 'cols' => '50', 'class' => 'font')); ?&gt;</div>
    <div>&lt;?php echo form_input(array('value' => 'Submit Comment', 'type' => 'submit', 'class' => 'font')); ?&gt;</div>
&lt;?php echo form_close(); ?&gt;

Code:

function comment_insert()
    {
        // Set rules
        $this->form_validation->set_rules('author', 'author', 'required');
        $this->form_validation->set_rules('body', 'body', 'required');
        
        if ($this->form_validation->run() == FALSE) {
            // Redirect
            redirect('news/comments/' . $_POST['news_id']);
        } else {
            // Insert comment in database
            $this->db->insert('comments', $_POST);
            
            // Redirect
            redirect('news/comments/' . $_POST['news_id']);
        }
    }

[eluser]NogDog[/eluser]
I think the redirect is the problem. Instead of redirecting, just load the view with the form.

Code:

if($this->form_validation->run() == false) {
   $this->load->view('view_name_goes_here']);
}

[eluser]Unknown[/eluser]
Yeah that was the problem. But I needed to load news and comments again in this case. I don't know if this is best solution, but at least it's working now.

Code:

function comment_insert()
    {
        // Set rules
        $this->form_validation->set_rules('author', 'author', 'required');
        $this->form_validation->set_rules('body', 'body', 'required');
        
        if ($this->form_validation->run() == FALSE) {
            // Load header
            $data['title'] = "-> News -> Comments";
            $this->load->view('templates/elsi/header_view', $data);
            // Load news
            $this->db->where('id', $this->uri->segment(3));
            $data['news'] = $this->db->get('news');
            
            // Load comments
            $this->db->where('news_id', $this->uri->segment(3));
            $data['comments'] = $this->db->get('comments');
            $this->load->view('templates/elsi/comment_view', $data);

            // Load footer
            $this->load->view('templates/elsi/footer_view');
        } else {
            // Insert comment in database
            $this->db->insert('comments', $_POST);
            
            // Redirect
            redirect('news/comments/' . $_POST['news_id']);
        }
    }