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<?php
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/* $Id$ */
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/**
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* @file
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*
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* This module is a workaround for the bug preventing comment links from
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* always working. See http://drupal.org/node/26966 for more info.
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*/
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/*
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* Implementation of hook_help()
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*/
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function comment_redirect_help($section) {
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switch ($section) {
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case 'admin/help#comment_redirect':
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$output .= '<p>' . t("There's a bug in drupal that causes comment links to go to the wrong node page on occasion. If you're not familiar with the issue, the discussion is at http://drupal.org/node/26966.") . '</p>';
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$output .= '<p>' . t("As of this writing, the bug has been pushed off to drupal 7. I needed something sooner, so I took one of the patches (http://drupal.org/node/26966#comment-335956) and made it into a module. I'll be very happy when I can deprecate this module b/c it'll mean the bug'll finally be fixed.") . '</p>';
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break;
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}
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}
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/*
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* Implementation of hook_menu()
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*/
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function comment_redirect_menu($may_cache) {
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$items = array();
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if ($may_cache) {
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}
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else {
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if (arg(0) == "comment_redirect" && is_numeric(arg(1))) {
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$items[] = array(
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'path' => 'comment_redirect/' . arg(1),
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'title' => t('Redirecting comment ' . arg(1)),
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'access' => 'access comments',
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'type' => MENU_CALLBACK,
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'callback' => 'comment_redirect_redirect_comment',
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'callback arguments' => array(arg(1)),
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);
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}
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}
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return $items;
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}
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/*
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* Implementation of hook_views_tables_alter()
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*/
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function comment_redirect_views_tables_alter(&$tables) {
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$tables['comments']['fields']['subject']['handler'] = array(
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'views_handler_field_comment_redirect_link' => 'Normal',
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'views_handler_field_comment_redirect_link_with_mark' => 'With Updated Mark',
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);
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}
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/*
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* Format a field as a link to a comment.
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*/
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function views_handler_field_comment_redirect_link($fieldinfo, $fielddata, $value, $data) {
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if ($fielddata['options'] == 'nolink') {
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return check_plain($value);
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}
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return l($value, "comment_redirect/" . $data->comments_cid);
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}
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/*
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* Format a field as a link to a 'mark', stating whether or not the comment has
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* updated since it was last viewed by the user.
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*/
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function views_handler_field_comment_redirect_link_with_mark($fieldinfo, $fielddata, $value, $data) {
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if ($fielddata['options'] == 'nolink') {
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$link = check_plain($value);
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}
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else {
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$link = l($value, "comment_redirect/" . $data->comments_cid);
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}
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return $link .' '. theme('mark', node_mark($data->nid, $data->comments_timestamp));
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}
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/*
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* This function generates the proper link to the comment
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*/
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function comment_redirect_redirect_comment($cid) {
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global $user;
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$comment = _comment_load($cid);
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if (empty($comment)) {
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drupal_not_found();
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}
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$order = _comment_get_display_setting('sort');
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$mode = _comment_get_display_setting('mode');
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$comments_per_page = _comment_get_display_setting('comments_per_page');
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if ($order == COMMENT_ORDER_NEWEST_FIRST) {
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if ($mode == COMMENT_MODE_FLAT_COLLAPSED || $mode == COMMENT_MODE_FLAT_EXPANDED) {
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$sqland = ' AND c.timestamp > %d' ;
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}
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else {
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$sqland = ' AND c.thread > "%s"' ;
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}
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}
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else if ($order == COMMENT_ORDER_OLDEST_FIRST) {
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if ($mode == COMMENT_MODE_FLAT_COLLAPSED || $mode == COMMENT_MODE_FLAT_EXPANDED) {
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$sqland = ' AND c.timestamp < %d' ;
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}
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else {
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$sqland = ' AND SUBSTRING(c.thread, 1, (LENGTH(c.thread) - 1)) < SUBSTRING("%s", 1, (LENGTH("%s") - 1))';
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}
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}
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if ($mode == COMMENT_MODE_FLAT_COLLAPSED || $mode == COMMENT_MODE_FLAT_EXPANDED) {
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$commentresult = db_query('SELECT count(*) as cnt FROM {comments} c WHERE c.nid=' . $comment->nid . $sqland, $comment->timestamp );
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}
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else {
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$commentresult = db_query('SELECT count(*) as cnt FROM {comments} c WHERE c.nid=' . $comment->nid . $sqland, $comment->thread, $comment->thread);
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}
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$commentcnt = db_fetch_object($commentresult);
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$page = floor($commentcnt->cnt / _comment_get_display_setting('comments_per_page'));
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$query = ($page > 0)?('page=' . $page) : '';
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drupal_goto('node/' . $comment->nid, $query, 'comment-' . $comment->cid);
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}
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