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<?php
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// $Id$
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/**
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* @file
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* Displays comments as individual pages that can be bookmarked and indexed by
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* search engines.
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*
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* Development sponsored by the Ubercart project. http://www.ubercart.org
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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_page_menu($may_cache) {
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if ($may_cache) {
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$items[] = array(
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'path' => 'admin/content/comment_page',
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'title' => t('Comment page'),
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'description' => t('Adjust the settings for the comment page module.'),
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'callback' => 'drupal_get_form',
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'callback arguments' => array('comment_page_settings'),
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'access' => user_access('administer comments'),
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'type' => MENU_NORMAL_ITEM,
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);
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}
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else {
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if (arg(0) == 'comment' && intval(arg(1)) > 0) {
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drupal_add_css(drupal_get_path('module', 'comment_page') .'/comment_page.css');
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$items[] = array(
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'path' => 'comment/'. arg(1),
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'title' => t('Viewing a comment'),
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'description' => t('View this comment.'),
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'callback' => 'comment_page_display',
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'callback arguments' => array(arg(1)),
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'access' => user_access('access comments'),
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'type' => MENU_CALLBACK,
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);
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}
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}
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return $items;
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}
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/**
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* Implementation of hook_comment().
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*/
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function comment_page_comment($arg1, $op) {
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switch($op) {
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case 'insert':
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if (variable_get('default_comment_subject_on', TRUE)) {
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$comment = (object) $arg1;
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if (substr($comment->comment, 0, strlen($comment->subject)) == $comment->subject) {
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$title = variable_get('default_comment_subject_prefix', t('Re:')) .' ';
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if ($comment->pid == 0) {
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$title .= db_result(db_query("SELECT title FROM {node} WHERE nid = %d", $comment->nid));
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}
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else {
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$title .= db_result(db_query("SELECT subject FROM {comments} WHERE cid = %d", $comment->pid));
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}
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db_query("UPDATE {comments} SET subject = '%s' WHERE cid = %d", $title, $comment->cid);
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}
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}
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break;
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case 'view':
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$arg1->page_url = comment_page_url($arg1->cid, $arg1->subject);
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break;
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}
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}
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/**
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* Implementation of hook_link().
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*/
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function comment_page_link($type, $node = NULL, $teaser = FALSE) {
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if ($type == 'comment' && variable_get('comment_page_show_link', TRUE)) {
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if (!(arg(0) == 'comment' && arg(1) == $node->cid)) {
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$links['link'] = array(
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'title' => t('link'),
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'href' => comment_page_url($node->cid, $node->subject),
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);
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}
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return $links;
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}
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}
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/**
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* Builds the settings form for the module.
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*/
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function comment_page_settings() {
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$form['display'] = array(
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'#type' => 'fieldset',
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'#title' => t('Display settings'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['display']['comment_page_show_link'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show link to page view in the comment links section.'),
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'#default_value' => variable_get('comment_page_show_link', TRUE),
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);
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$form['display']['comment_page_show_thread'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show thread display on comment pages. (Recommended)'),
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'#default_value' => variable_get('comment_page_show_thread', TRUE),
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);
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$form['display']['comment_page_anon_name'] = array(
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'#type' => 'textfield',
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'#title' => t('Anonymous user name'),
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'#description' => t('What to display as the author name for anonymous posters.'),
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'#default_value' => variable_get('comment_page_anon_name', t('Anonymous')),
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);
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$form['display']['comment_page_thread_show_count'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show the total reply count by the thread title.'),
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'#default_value' => variable_get('comment_page_thread_show_count', TRUE),
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);
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$form['display']['comment_page_thread_show_date'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show the extended date beneath the thread title.'),
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'#default_value' => variable_get('comment_page_thread_show_date', TRUE),
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);
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$form['display']['comment_page_thread_show_names'] = array(
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'#type' => 'checkbox',
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'#title' => t('Show author names by post data in the thread display.'),
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'#default_value' => variable_get('comment_page_thread_show_names', TRUE),
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);
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$form['subject'] = array(
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'#type' => 'fieldset',
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'#title' => t('Comment subject settings'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['subject']['default_comment_subject_on'] = array(
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'#type' => 'checkbox',
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'#title' => t("Default empty comment subject to '!prefix Parent node/comment title'.",
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array('!prefix' => variable_get('default_comment_subject_prefix', t('Re:')))),
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'#default_value' => variable_get('default_comment_subject_on', FALSE),
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);
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$form['subject']['default_comment_subject_prefix'] = array(
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'#type' => 'textfield',
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'#title' => t('Reply prefix'),
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'#default_value' => variable_get('default_comment_subject_prefix', t('Re:')),
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'#size' => 16,
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);
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$form['url'] = array(
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'#type' => 'fieldset',
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'#title' => t('Comment URL settings'),
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'#collapsible' => TRUE,
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'#collapsed' => TRUE,
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);
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$form['url']['comment_subject_in_url'] = array(
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'#type' => 'checkbox',
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'#title' => t('Include the comment subject in the page URL.'),
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'#description' => t('This setting is only taken into account if <a href="!url">Pathauto</a> is installed and enabled.', array('!url' => 'http://drupal.org/project/pathauto')),
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'#default_value' => variable_get('comment_subject_in_url', TRUE),
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);
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return system_settings_form($form);
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}
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/**
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* Display a comment as a page.
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*/
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function comment_page_display($comment_id) {
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// Load up the comment.
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$comment = _comment_load($comment_id);
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// Check to make sure the user can access the node.
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$node = node_load($comment->nid);
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if ($node->nid) {
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if (!node_access('view', $node)) {
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drupal_access_denied();
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}
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}
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else {
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drupal_not_found();
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}
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if (variable_get('default_comment_subject_on', TRUE) &&
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substr($comment->comment, 0, strlen($comment->subject)) == $comment->subject) {
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$title = variable_get('default_comment_subject_prefix', t('Re:')) .' ';
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if ($comment->pid == 0) {
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$title .= db_result(db_query("SELECT title FROM {node} WHERE nid = %d", $comment->nid));
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}
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else {
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$title .= db_result(db_query("SELECT subject FROM {comments} WHERE cid = %d", $comment->pid));
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}
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drupal_set_title($title);
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}
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else {
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drupal_set_title($comment->subject);
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}
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// Build the output with the comment followed by the thread display.
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$output = theme('comment_view', $comment,
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module_invoke_all('link', 'comment', $comment, 0));
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if (variable_get('comment_page_show_thread', TRUE)) {
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$output .= comment_page_thread($comment);
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}
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return $output;
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}
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/**
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* Returns the URL for a comment page.
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*/
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function comment_page_url($cid, $subject = NULL) {
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if (empty($subject) || !variable_get('comment_subject_in_url', TRUE) || !function_exists('pathauto_cleanstring')) {
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return 'comment/'. $cid;
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}
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else {
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$prefix = variable_get('default_comment_subject_prefix', t('Re:'));
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if (strlen($subject) > strlen($prefix) && strpos($subject, $prefix, strlen($prefix)) == strlen($prefix) + 1) {
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while (strpos($subject, $prefix, strlen($prefix)) == strlen($prefix) + 1) {
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$subject = substr($subject, strlen($prefix) + 1);
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}
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}
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return 'comment/'. $cid .'/'. pathauto_cleanstring($subject);
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}
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}
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/**
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* Return the threaded list for display on a comment page.
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*/
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function comment_page_thread($comment, $show_node = TRUE) {
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drupal_add_css(drupal_get_path('module', 'comment_page') .'/comment_page.css');
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$result = db_query("SELECT n.nid, n.title, n.uid, n.created, u.name FROM "
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."{node} AS n LEFT JOIN {users} AS u ON n.uid = u.uid "
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."WHERE n.nid = %d", $comment->nid);
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$node = db_fetch_object($result);
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$result = db_query("SELECT cid, pid, uid, subject, thread, name, timestamp FROM "
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."{comments} WHERE nid = %d ORDER BY thread DESC", $comment->nid);
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$node->replies = db_num_rows($result);
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$output = '<div class="comment-thread">';
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if ($show_node) {
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// Add the title of the node the comments are attached to.
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$dst = 'node/'. $node->nid;
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if (module_exists('path')) {
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$result2 = db_query("SELECT dst FROM {url_alias} WHERE src = '%s'", $dst);
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if ($row = db_fetch_object($result2)) {
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$dst = $row->dst;
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}
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}
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$output .= '<span class="thread-title">'. l($node->title, $dst) .'</span> ';
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// Add the name of the node author if enabled.
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if (variable_get('comment_page_thread_show_names', TRUE)) {
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if ($node->uid) {
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$name = l($node->name, 'user/'. $node->uid);
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}
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else {
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$name = variable_get('comment_page_anon_name', t('Anonymous'));
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}
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$output .= '<span class="thread-author">'
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. t('By: !name', array('!name' => $name)) .'</span> ';
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}
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// Add the reply count if enabled.
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if (variable_get('comment_page_thread_show_count', TRUE)) {
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$output .= '<span class="thread-count">'
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. t('(%count <em>replies</em>)', array('%count' => $node->replies))
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.'</span> ';
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}
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// Add the date beneath the thread title.
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if (variable_get('comment_page_thread_show_date', TRUE)) {
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$output .= '<span class="thread-date">'. format_date($node->created)
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.'</span>';
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}
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}
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// Fill the thread with the comments!
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$nest = 0;
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while ($row = db_fetch_object($result)) {
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$last_nest = $nest;
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$nest = strlen($row->thread);
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if ($nest > $last_nest) {
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$output .= '<ul>';
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}
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elseif ($nest < $last_nest) {
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for ($i = $last_nest; $i > $nest; $i -= 3, $last_nest -= 3) {
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$output .= '</ul>';
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}
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}
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else {
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$output .= '</li>';
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}
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if ($row->cid == $comment->cid) {
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$class = 'current';
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$subject = $row->subject;
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}
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else {
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$class = 'normal';
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$subject = l($row->subject, comment_page_url($row->cid, $row->subject));
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}
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$output .= '<li>';
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// Add the comment's subject.
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$output .= '<span class="comment-title '. $class .'">'. $subject .'</span> ';
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// Add the name of the comment author if enabled.
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if (variable_get('comment_page_thread_show_names', TRUE)) {
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if ($node->uid) {
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$name = l($row->name, 'user/'. $row->uid);
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}
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else {
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$name = $row->name;
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}
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$output .= '<span class="thread-author">'
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. t('By: !name', array('!name' => $name)) .'</span> ';
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}
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// Add the short version of the date beside the comment title.
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if (variable_get('comment_page_thread_show_date', TRUE)) {
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$output .= '<span class="comment-date">('
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. format_date($row->timestamp, 'small') .')</span>';
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}
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}
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$output .= '</div>';
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return $output;
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}
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