Edit Page Query -> Codeigniter

Hello Again,

Yes I am very new to Codeigniter and this depth of PHP.

What my idea is:

My idea is that I can have my url mysite.com/admin/editpage/pagename

which will then bring up the content for that page.

I have produced the following code but I am unsure how to $_POST the data into the form.

Controller


class Editpage extends CI_Controller {

    function __construct(){
	parent::__construct();
    }
	
    function index(){
        if($this->session->userdata('logged_in')){
        
        }else{
            redirect('admin/home');
        }
		$page = $this->navigation_model->getCMSPage($this->uri->segment(3));
		$data['cms_pages'] = $this->navigation_model->getCMSPages();
        $data['title'] = $page->name;
		$data['content'] = $this->load->view('admin/editpage', $data);
		
		$this->load->view('admintemplate', $data);
        
    }
		

}

Model


	function getCMSPage($permalink = NULL) {
		
		if(!$permalink) $permalink = 'home'; //Default Page
		$this->db->where('permalink', $permalink);
		$query = $this->db->get('pages', 1);
		if($query->num_rows() == 1) return $query->row();
		
	}


View

<?php
//Setting form attributes
$formpageEdit = array('id' => 'pageEdit', 'name' => 'pageEdit');
$formInputTitle = array('id' => 'title', 'name' => 'title');
$formTextareaContent = array('id' => 'content', 'name' => 'content');
?>

<section id = "validation"><?php echo validation_errors();?></section>

<h4><?= $title ?> </h4>
<?php
echo form_open('admin/editpage/'.$page->permalink, $formpageEdit);
echo form_fieldset();
echo form_label ('Content', 'content');
echo form_textarea('content');
echo form_submit('submit','Submit');
echo form_fieldset_close();
echo form_close();
?>