แจกของฟรี

If I selected 'Topic Solved', I hope this topic cannot reply (not including Administrator,Global Moderator,Moderator), how do I edit file?

install.xml

search
   <file name="$sourcedir/Display.php">
<operation>
<search position="replace"><![CDATA[ $context['topic_first_message'] = $topicinfo['id_first_msg'];]]></search>
<add><![CDATA[ $context['topic_first_message'] = $topicinfo['id_first_msg'];
$context['topic_solved'] = $topicinfo['is_solved'];
$context['can_solve_topic'] =  (allowedTo('solve_topic_any') || (allowedTo('solve_topic_own') && $user_info['id'] == $topicinfo['id_member_started'])) && $board_info['topic_solved'];]]></add>
</operation>
<operation>
<search position="replace"><![CDATA[t.num_replies, t.num_views, t.locked, ms.subject, t.is_sticky]]></search>
<add><![CDATA[t.num_replies, t.num_views, t.locked, ms.subject, t.is_sticky, t.is_solved]]></add>
</operation>
</file>
replace
   <file name="$sourcedir/Display.php">
<operation>
<search position="replace"><![CDATA[ $context['topic_first_message'] = $topicinfo['id_first_msg'];]]></search>
<add><![CDATA[ $context['topic_first_message'] = $topicinfo['id_first_msg'];
$context['topic_solved'] = $topicinfo['is_solved'];
$context['can_solve_topic'] =  (allowedTo('solve_topic_any') || (allowedTo('solve_topic_own') && $user_info['id'] == $topicinfo['id_member_started'])) && $board_info['topic_solved'];]]></add>
</operation>
<operation>
<search position="replace"><![CDATA[t.num_replies, t.num_views, t.locked, ms.subject, t.is_sticky]]></search>
<add><![CDATA[t.num_replies, t.num_views, t.locked, ms.subject, t.is_sticky, t.is_solved]]></add>
</operation>
<operation>
<search position="before"><![CDATA[$context['is_locked'] = $topicinfo['locked'];]]></search>
<add><![CDATA[$context['is_solved'] = $topicinfo['is_solved'];]]></add>
</operation>
<operation>
<search position="before"><![CDATA[$context['can_reply'] &= empty($topicinfo['locked']) || allowedTo('moderate_board');]]></search>
<add><![CDATA[$context['can_reply'] &= $context['is_solved'] == '0' || allowedTo('moderate_board');]]></add>
</operation>
</file>

in display.template

Search for:
function template_main()
{
   global $context, $settings, $options, $txt, $scripturl, $modSettings;
replace with:
function template_main()
{
   global $context, $settings, $options, $txt, $scripturl, $modSettings, $topicinfo, $board_info;
search for:
// Show the member's signature?
      if (!empty($message['member']['signature']) && empty($options['show_no_signatures']) && $context['signature_enabled'])
         echo '
                     <div class="signature" id="msg_', $message['id'], '_signature">', $message['member']['signature'], '</div>';

      echo '
and replace with:
// Show the member's signature?
      if (!empty($message['member']['signature']) && empty($options['show_no_signatures']) && $context['signature_enabled'])
         echo '
                     <div class="signature" id="msg_', $message['id'], '_signature">', $message['member']['signature'], '</div>';
        if ($message['id'] == $context['topic_last_message'] && ($board_info['topic_solved']))
        {
            echo'<div style="float:left;font-size:x-small;padding:0 4px;border: 1px solid #ddd;border-radius:5px;-moz-border-radius:5px;-webkit-border-radius:5px;">';
            if ($topicinfo['is_solved'])
                echo'<a style="color:#ff0000;" href="'. $scripturl. '?action=topicsolved;topic=' . $context['current_topic'] . ';sesc=' . $context['session_id'] . '"><strong>Topic Not Solved</strong></a>';
            else
                echo'<a style="color:#00bb00;" href="'. $scripturl. '?action=topicsolved;topic=' . $context['current_topic'] . ';sesc=' . $context['session_id'] . '"><strong>Mark Topic Solved</strong></a>';
            echo'</div>';
        }
      echo '