How can i display error messages in CodeIgniter
<p><strong>Controller:</strong></p>

<pre><code> public function add_year() {
        $session_id = $this-&gt;session-&gt;userdata('id');
        if (!empty($session_id)) {
            $this-&gt;form_validation-&gt;set_rules('year_name', 'Year Name', 'required');
            if ($this-&gt;form_validation-&gt;run() == FALSE) {
                $data = array(
                    'page_title' =&gt; 'Add Year',
                    'page_name' =&gt; 'year/add_year',
                    'admin_username' =&gt; $this-&gt;session-&gt;userdata('username')
                );
                $this-&gt;load-&gt;view('admin/template', $data);
            } else {
                $this-&gt;year_model-&gt;insert($_POST);
                redirect('admin/Year');
            }
        } else {
            redirect('admin/Login');
        }
    }
</code></pre>

<p><strong>Model:</strong></p>

<pre><code>  public function insert($data) {
        $result = $this-&gt;db-&gt;get_where('year', array('year_name' =&gt; $data['year_name']))-&gt;row_array();
        if (empty($result)) {
            $insert_data = array('year_name' =&gt; $data['year_name']);
            $this-&gt;db-&gt;insert('year', $insert_data);
        } else {
            $error = "Year Name Already Exits";
            return $error;
        }
    }
</code></pre>

<p><strong>View:</strong></p>

<pre><code>&lt;div class="text-danger"&gt;
    //display error message
&lt;/div&gt;
</code></pre>

<p>MY Question: How can i display model error message in view............................................................</p>