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459 lines
23 KiB
459 lines
23 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* These files are a complete rework of the forum. The database structure is
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* based on phpBB but all the code is rewritten. A lot of new functionalities
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* are added:
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* - forum categories and forums can be sorted up or down, locked or made invisible
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* - consistent and integrated forum administration
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* - forum options: are students allowed to edit their post?
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* moderation of posts (approval)
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* reply only forums (students cannot create new threads)
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* multiple forums per group
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* - sticky messages
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* - new view option: nested view
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* - quoting a message
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*
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* @Author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @Copyright Ghent University
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* @Copyright Patrick Cool
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*
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* @package chamilo.forum
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*/
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use \ChamiloSession as Session;
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// Language files that need to be included.
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$language_file = array('forum', 'group');
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// Including the global initialization file.
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require_once '../inc/global.inc.php';
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$current_course_tool = TOOL_FORUM;
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// Notification for unauthorized people.
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api_protect_course_script(true);
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// The section (tabs).
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$this_section = SECTION_COURSES;
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$nameTools = get_lang('ToolForum');
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// Are we in a lp ?
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$origin = '';
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$origin_string = '';
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if (isset($_GET['origin'])) {
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$origin = Security::remove_XSS($_GET['origin']);
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$origin_string = '&origin='.$origin;
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}
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/* Including necessary files */
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require 'forumconfig.inc.php';
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require_once 'forumfunction.inc.php';
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$userid = api_get_user_id();
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/* MAIN DISPLAY SECTION */
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$group_id = api_get_group_id();
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$my_forum = isset($_GET['forum']) ? $_GET['forum'] : '';
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$current_forum = get_forum_information($my_forum); // Note: This has to be validated that it is an existing forum.
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if (empty($current_forum)) {
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api_not_allowed();
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}
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$current_forum_category = get_forumcategory_information($current_forum['forum_category']);
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$is_group_tutor = false;
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if (!empty($group_id)) {
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//Group info & group category info
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$group_properties = GroupManager::get_group_properties($group_id);
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//User has access in the group?
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$user_has_access_in_group = GroupManager::user_has_access($userid, $group_id, GroupManager::GROUP_TOOL_FORUM);
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$is_group_tutor = GroupManager::is_tutor_of_group(api_get_user_id(), $group_id);
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//Course
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if (!api_is_allowed_to_edit(false, true) AND //is a student
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(($current_forum_category && $current_forum_category['visibility'] == 0) OR $current_forum['visibility'] == 0 OR !$user_has_access_in_group)
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) {
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api_not_allowed();
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}
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} else {
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//Course
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if (!api_is_allowed_to_edit(false, true) AND //is a student
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(($current_forum_category && $current_forum_category['visibility'] == 0) OR $current_forum['visibility'] == 0) //forum category or forum visibility is false
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) {
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api_not_allowed();
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}
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}
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/* Header and Breadcrumbs */
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$my_search = isset($_GET['search']) ? $_GET['search'] : '';
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$my_action = isset($_GET['action']) ? $_GET['action'] : '';
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if (isset($_SESSION['gradebook'])){
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$gradebook = $_SESSION['gradebook'];
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}
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if (!empty($gradebook) && $gradebook == 'view') {
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$interbreadcrumb[] = array (
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'url' => '../gradebook/'.$_SESSION['gradebook_dest'],
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'name' => get_lang('ToolGradebook')
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);
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}
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if (!empty($_GET['gidReq'])) {
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$toolgroup = Database::escape_string($_GET['gidReq']);
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Session::write('toolgroup',$toolgroup);
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}
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if ($origin == 'group') {
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$interbreadcrumb[] = array('url' => '../group/group.php', 'name' => get_lang('Groups'));
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$interbreadcrumb[] = array('url'=>'../group/group_space.php?gidReq='.$_SESSION['toolgroup'], 'name'=> get_lang('GroupSpace').' '.$group_properties['name']);
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$interbreadcrumb[] = array('url' => '#', 'name' => get_lang('Forum').' '.Security::remove_XSS($current_forum['forum_title']));
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} else {
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$interbreadcrumb[] = array('url' => 'index.php?gradebook='.$gradebook.'&search='.Security::remove_XSS($my_search), 'name' => get_lang('ForumCategories'));
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$interbreadcrumb[] = array('url' => 'viewforumcategory.php?forumcategory='.$current_forum_category['cat_id'].'&search='.Security::remove_XSS(urlencode($my_search)), 'name' => prepare4display($current_forum_category['cat_title']));
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$interbreadcrumb[] = array('url' => '#', 'name' => Security::remove_XSS($current_forum['forum_title']));
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}
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if ($origin == 'learnpath') {
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Display::display_reduced_header();
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} else {
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// The last element of the breadcrumb navigation is already set in interbreadcrumb, so give empty string.
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Display :: display_header('');
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}
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/* Actions */
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// Change visibility of a forum or a forum category.
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if (($my_action == 'invisible' OR $my_action=='visible') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false, true) && api_is_allowed_to_session_edit(false, true)) {
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$message = change_visibility($_GET['content'], $_GET['id'], $_GET['action']); // Note: This has to be cleaned first.
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}
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// Locking and unlocking.
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if (($my_action == 'lock' OR $my_action == 'unlock') AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false, true) && api_is_allowed_to_session_edit(false, true)) {
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$message = change_lock_status($_GET['content'], $_GET['id'], $my_action); // Note: This has to be cleaned first.
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}
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// Deleting.
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if ($my_action == 'delete' AND isset($_GET['content']) AND isset($_GET['id']) AND api_is_allowed_to_edit(false, true) && api_is_allowed_to_session_edit(false, true)) {
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$locked = api_resource_is_locked_by_gradebook($_GET['id'], LINK_FORUM_THREAD);
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if ($locked == false) {
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$message = delete_forum_forumcategory_thread($_GET['content'], $_GET['id']); // Note: This has to be cleaned first.
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// Delete link
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/gradebook_functions.inc.php';
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$link_info = is_resource_in_course_gradebook(api_get_course_id(), 5 , intval($_GET['id']), api_get_session_id());
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$link_id = $link_info['id'];
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if ($link_info !== false) {
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remove_resource_from_course_gradebook($link_id);
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}
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}
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}
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// Moving.
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if ($my_action == 'move' AND isset($_GET['thread']) AND api_is_allowed_to_edit(false, true) && api_is_allowed_to_session_edit(false, true)) {
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$message = move_thread_form();
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}
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// Notification.
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if ($my_action == 'notify' AND isset($_GET['content']) AND isset($_GET['id']) && api_is_allowed_to_session_edit(false, true)) {
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$return_message = set_notification($_GET['content'], $_GET['id']);
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Display :: display_confirmation_message($return_message, false);
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}
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// Student list
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if ($my_action == 'liststd' AND isset($_GET['content']) AND isset($_GET['id']) AND (api_is_allowed_to_edit(null, true) || $is_group_tutor)) {
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$active = null;
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switch ($_GET['list']) {
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case 'qualify':
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$student_list = get_thread_users_qualify($_GET['id']);
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$nrorow3 = -2;
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$active = 2;
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break;
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case 'notqualify':
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$student_list = get_thread_users_not_qualify($_GET['id']);
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$nrorow3 = -2;
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$active = 3;
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break;
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default:
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$student_list = get_thread_users_details($_GET['id']);
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$nrorow3 = Database::num_rows($student_list);
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$active = 1;
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break;
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}
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$table_list = Display::page_subheader(get_lang('ThreadUsersList').': '.get_name_thread_by_id($_GET['id']));
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if ($nrorow3 > 0 || $nrorow3 == -2) {
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$url = 'cidReq='.Security::remove_XSS($_GET['cidReq']).'&forum='.Security::remove_XSS($my_forum).'&action='.Security::remove_XSS($_GET['action']).'&content='.Security::remove_XSS($_GET['content'],STUDENT).'&id='.intval($_GET['id']);
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$tabs = array(
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array('content' => get_lang('AllStudents'),
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'url' => 'viewforum.php?'.$url.'&origin='.$origin.'&list=all'),
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array('content' => get_lang('StudentsQualified'),
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'url' => 'viewforum.php?'.$url.'&origin='.$origin.'&list=qualify'),
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array('content' => get_lang('StudentsNotQualified'),
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'url' => 'viewforum.php?'.$url.'&origin='.$origin.'&list=notqualify'),
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);
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$table_list .= Display::tabs_only_link($tabs, $active);
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$icon_qualify = 'blog_new.gif';
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$table_list .= '<center><br /><table class="data_table" style="width:50%">';
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// The column headers (TODO: Make this sortable).
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$table_list .= '<tr >';
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$table_list .= '<th height="24">'.get_lang('NamesAndLastNames').'</th>';
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if ($_GET['list'] == 'qualify') {
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$table_list.= '<th>'.get_lang('Qualification').'</th>';
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}
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if (api_is_allowed_to_edit(null, true)) {
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$table_list.= '<th>'.get_lang('Qualify').'</th>';
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}
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$table_list .= '</tr>';
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$max_qualify = show_qualify('2', $userid, $_GET['id']);
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$counter_stdlist = 0;
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if (Database::num_rows($student_list) > 0) {
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while ($row_student_list=Database::fetch_array($student_list)) {
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if ($counter_stdlist % 2 == 0) {
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$class_stdlist = 'row_odd';
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} else {
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$class_stdlist = 'row_even';
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}
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$name_user_theme = api_get_person_name($row_student_list['firstname'], $row_student_list['lastname']);
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$table_list .= '<tr class="'.$class_stdlist.'"><td><a href="../user/userInfo.php?uInfo='.$row_student_list['user_id'].'&tipo=sdtlist&'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).$origin_string.'">'.$name_user_theme.'</a></td>';
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if ($_GET['list'] == 'qualify') {
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$table_list .= '<td>'.$row_student_list['qualify'].'/'.$max_qualify.'</td>';
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}
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if (api_is_allowed_to_edit(null, true)) {
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$current_qualify_thread = show_qualify('1', $row_student_list['user_id'], $_GET['id']);
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$table_list .= '<td><a href="forumqualify.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&thread='.Security::remove_XSS($_GET['id']).'&user='.$row_student_list['user_id'].'&user_id='.$row_student_list['user_id'].'&idtextqualify='.$current_qualify_thread.'&origin='.$origin.'">'.Display::return_icon($icon_qualify, get_lang('Qualify')).'</a></td></tr>';
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}
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$counter_stdlist++;
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}
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} else {
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if ($_GET['list'] == 'qualify') {
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$table_list .= '<tr><td colspan="2">'.get_lang('ThereIsNotQualifiedLearners').'</td></tr>';
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} else {
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$table_list .= '<tr><td colspan="2">'.get_lang('ThereIsNotUnqualifiedLearners').'</td></tr>';
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}
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}
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$table_list .= '</table></center>';
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$table_list .= '<br />';
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} else {
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$table_list .= Display::return_message(get_lang('NoParticipation'), 'warning');
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}
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}
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if ($origin == 'learnpath') {
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echo '<div style="height:15px"> </div>';
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}
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/* Display the action messages */
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if (!empty($message)) {
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Display :: display_confirmation_message($message);
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}
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/* Action links */
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echo '<div class="actions">';
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if ($origin != 'learnpath') {
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if ($origin=='group') {
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echo '<a href="../group/group_space.php?'.api_get_cidreq().'&gradebook='.$gradebook.'">'.Display::return_icon('back.png',get_lang('BackTo').' '.get_lang('Groups'),'',ICON_SIZE_MEDIUM).'</a>';
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} else {
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echo '<span style="float:right;">'.search_link().'</span>';
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echo '<a href="index.php">'.Display::return_icon('back.png', get_lang('BackToForumOverview'), '', ICON_SIZE_MEDIUM).'</a>';
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}
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}
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// The link should appear when
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// 1. the course admin is here
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// 2. the course member is here and new threads are allowed
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// 3. a visitor is here and new threads AND allowed AND anonymous posts are allowed
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if (api_is_allowed_to_edit(false, true) OR ($current_forum['allow_new_threads'] == 1 AND isset($_user['user_id'])) OR ($current_forum['allow_new_threads'] == 1 AND !isset($_user['user_id']) AND $current_forum['allow_anonymous'] == 1)) {
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if ($current_forum['locked'] <> 1 AND $current_forum['locked'] <> 1) {
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if (!api_is_anonymous()) {
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if ($my_forum == strval(intval($my_forum))) {
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echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).$origin_string.'">'.Display::return_icon('new_thread.png',get_lang('NewTopic'),'',ICON_SIZE_MEDIUM).'</a>';
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} else {
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$my_forum = strval(intval($my_forum));
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echo '<a href="newthread.php?'.api_get_cidreq().'&forum='.$my_forum.$origin_string.'">'.Display::return_icon('new_thread.png',get_lang('NewTopic'),'',ICON_SIZE_MEDIUM).'</a>';
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}
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}
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} else {
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echo get_lang('ForumLocked');
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}
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}
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echo '</div>';
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/* Display */
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echo '<table class="forum_table" >';
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// The current forum
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if ($origin != 'learnpath') {
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echo '<thead><tr><th class="forum_head" colspan="7">';
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if (!empty ($current_forum_category['cat_title'])) {
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//echo '<span class="forum_low_description">'.prepare4display($current_forum_category['cat_title'])."</span><br />";
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}
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echo '<span class="forum_title">'.prepare4display($current_forum['forum_title']).'</span>';
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if (!empty ($current_forum['forum_comment'])) {
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echo '<br /><span class="forum_description">'.prepare4display($current_forum['forum_comment']).'</span>';
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}
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echo '</th></tr></thead>';
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}
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// The column headers (TODO: Make this sortable).
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echo '<tr class="forum_threadheader">';
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echo '<td></td>';
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echo '<td>'.get_lang('Title').'</td>';
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echo '<td>'.get_lang('Replies').'</td>';
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echo '<td>'.get_lang('Views').'</td>';
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echo '<td>'.get_lang('Author').'</td>';
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echo '<td>'.get_lang('LastPost').'</td>';
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echo '<td>'.get_lang('Actions').'</td>';
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echo '</tr>';
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// Getting al the threads
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$threads = get_threads($my_forum); // Note: This has to be cleaned first
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$whatsnew_post_info = isset($_SESSION['whatsnew_post_info']) ? $_SESSION['whatsnew_post_info'] : null;
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$course_id = api_get_course_int_id();
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$counter = 0;
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if (is_array($threads)) {
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foreach ($threads as $row) {
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// Thread who have no replies yet and the only post is invisible should not be displayed to students.
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if (api_is_allowed_to_edit(false, true) OR !($row['thread_replies'] == '0' AND $row['visible'] == '0')) {
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if ($counter % 2 == 0) {
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$class = 'row_odd';
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} else {
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$class = 'row_even';
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}
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echo "<tr class=\"$class\">";
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echo '<td>';
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$my_whatsnew_post_info = isset($whatsnew_post_info[$my_forum][$row['thread_id']]) ? $whatsnew_post_info[$my_forum][$row['thread_id']] : null;
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if (is_array($my_whatsnew_post_info) && !empty($my_whatsnew_post_info)) {
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echo Display::return_icon('forumthread.gif');
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} else {
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echo Display::return_icon('forumthread.gif');
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}
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if ($row['thread_sticky'] == 1) {
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echo Display::return_icon('exclamation.gif');
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}
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echo '</td>';
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echo '<td>';
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echo '<a href="viewthread.php?'.api_get_cidreq().'&gradebook='.Security::remove_XSS($_GET['gradebook']).'&forum='.Security::remove_XSS($my_forum).'&origin='.$origin.'&thread='.$row['thread_id'].$origin_string.'&search='.Security::remove_XSS(urlencode($my_search)).'" '.class_visible_invisible($row['visibility']).'>'.prepare4display($row['thread_title']).'</a></td>';
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echo '<td>'.$row['thread_replies'].'</td>';
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echo '<td>'.$row['thread_views'].'</td>';
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// display the author name
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$tab_poster_info = api_get_user_info($row['user_id']);
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$poster_username = sprintf(get_lang('LoginX'), $tab_poster_info['username']);
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if ($origin != 'learnpath') {
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echo '<td>'.display_user_link($row['user_id'], api_get_person_name($row['firstname'], $row['lastname']), '', $poster_username).'</td>';
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} else {
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echo '<td>'.Display::tag('span', api_get_person_name($row['firstname'], $row['lastname']), array("title"=>api_htmlentities($poster_username, ENT_QUOTES))).'</td>';
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}
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$last_post_info = get_last_post_by_thread($row['c_id'], $row['thread_id'], $row['forum_id'], is_allowed_to_edit());
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$last_post = null;
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if ($last_post_info) {
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$poster_info = api_get_user_info($last_post_info['poster_id']);
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$post_date = api_convert_and_format_date($last_post_info['post_date']);
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$last_post = $post_date.' '.get_lang('By').' '.display_user_link($last_post_info['poster_id'], $poster_info['complete_name'], '', $poster_info['user_name']);
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}
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/*
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if ($row['last_poster_user_id'] == '0') {
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$name = $row['poster_name'];
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$last_poster_username = "";
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} else {
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$name = api_get_person_name($row['last_poster_firstname'], $row['last_poster_lastname']);
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$tab_last_poster_info = api_get_user_info($row['last_poster_user_id']);
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$last_poster_username = sprintf(get_lang('LoginX'), $tab_last_poster_info['username']);
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}
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// If the last post is invisible and it is not the teacher who is looking then we have to find the last visible post of the thread.
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if (($row['visible'] == '1' OR api_is_allowed_to_edit(false, true)) && $origin != 'learnpath') {
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$last_post = $post_date.' '.get_lang('By').' '.display_user_link($row['last_poster_user_id'], $name, '', $last_poster_username);
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} elseif ($origin != 'learnpath') {
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$last_post_sql = "SELECT post.*, user.firstname, user.lastname, user.username FROM $table_posts post, $table_users user WHERE post.poster_id=user.user_id AND visible='1' AND thread_id='".$row['thread_id']."' AND post.c_id=".api_get_course_int_id()." ORDER BY post_id DESC";
|
|
$last_post_result = Database::query($last_post_sql);
|
|
$last_post_row = Database::fetch_array($last_post_result);
|
|
$name = api_get_person_name($last_post_row['firstname'], $last_post_row['lastname']);
|
|
$last_post_info_username = sprintf(get_lang('LoginX'), $last_post_row['username']);
|
|
$last_post = api_convert_and_format_date($last_post_row['post_date']).' '.get_lang('By').' '.display_user_link($last_post_row['poster_id'], $name, '', $last_post_info_username);
|
|
} else {
|
|
$last_post_sql = "SELECT post.*, user.firstname, user.lastname, user.username FROM $table_posts post, $table_users user WHERE post.poster_id=user.user_id AND visible='1' AND thread_id='".$row['thread_id']."' AND post.c_id=".api_get_course_int_id()." ORDER BY post_id DESC";
|
|
$last_post_result = Database::query($last_post_sql);
|
|
$last_post_row = Database::fetch_array($last_post_result);
|
|
$last_post_info_username = sprintf(get_lang('LoginX'), $last_post_row['username']);
|
|
$name = api_get_person_name($last_post_row['firstname'], $last_post_row['lastname']);
|
|
$last_post = api_convert_and_format_date($last_post_row['post_date']).' '.get_lang('By').' '.Display::tag('span', $name, array("title"=>api_htmlentities($last_post_info_username, ENT_QUOTES)));
|
|
}*/
|
|
|
|
echo '<td>'.$last_post.'</td>';
|
|
echo '<td class="td_actions">';
|
|
// Get attachment id.
|
|
$attachment_list = get_attachment($row['post_id']);
|
|
$id_attach = !empty($attachment_list) ? $attachment_list['id'] : '';
|
|
|
|
$sql_post_id = "SELECT post_id FROM $table_posts WHERE c_id = $course_id AND post_title='".Database::escape_string($row['thread_title'])."'";
|
|
$result_post_id = Database::query($sql_post_id);
|
|
$row_post_id = Database::fetch_array($result_post_id);
|
|
|
|
if ($origin != 'learnpath') {
|
|
if (api_is_allowed_to_edit(false, true) && !(api_is_course_coach() && $current_forum['session_id'] != $_SESSION['id_session'])) {
|
|
echo '<a href="editpost.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&thread='.Security::remove_XSS($row['thread_id']).'&post='.$row_post_id['post_id'].'&gidReq='.$_SESSION['toolgroup'].'&origin='.$origin.'&id_attach='.$id_attach.'">'.Display::return_icon('edit.png', get_lang('Edit'), array(), ICON_SIZE_SMALL).'</a>';
|
|
|
|
if (api_resource_is_locked_by_gradebook($row['thread_id'], LINK_FORUM_THREAD)) {
|
|
echo Display::return_icon('delete_na.png', get_lang('ResourceLockedByGradebook'), array(), ICON_SIZE_SMALL);
|
|
} else {
|
|
echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&action=delete&content=thread&gidReq='.$_SESSION['toolgroup'].'&id='.$row['thread_id'].$origin_string."\" onclick=\"javascript:if(!confirm('".addslashes(api_htmlentities(get_lang('DeleteCompleteThread'), ENT_QUOTES))."')) return false;\">".Display::return_icon('delete.png', get_lang('Delete'), array(), ICON_SIZE_SMALL).'</a>';
|
|
}
|
|
|
|
display_visible_invisible_icon('thread', $row['thread_id'], $row['visibility'], array('forum' => $my_forum, 'origin' => $origin, 'gidReq' => $_SESSION['toolgroup']));
|
|
display_lock_unlock_icon('thread', $row['thread_id'], $row['locked'], array('forum' => $my_forum, 'origin' => $origin, 'gidReq' => $_SESSION['toolgroup']));
|
|
echo '<a href="viewforum.php?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&action=move&gidReq='.$_SESSION['toolgroup'].'&thread='.$row['thread_id'].$origin_string.'">'.Display::return_icon('move.png', get_lang('MoveThread'), array(), ICON_SIZE_SMALL).'</a>';
|
|
}
|
|
}
|
|
$iconnotify = 'send_mail.gif';
|
|
if (is_array(isset($_SESSION['forum_notification']['thread']) ? $_SESSION['forum_notification']['thread'] : null)) {
|
|
if (in_array($row['thread_id'], $_SESSION['forum_notification']['thread'])) {
|
|
$iconnotify = 'send_mail_checked.gif';
|
|
}
|
|
}
|
|
$icon_liststd = 'user.png';
|
|
if (!api_is_anonymous() && api_is_allowed_to_session_edit(false, true)) {
|
|
echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&origin='.$origin.'&action=notify&content=thread&gidReq='.$_SESSION['toolgroup'].'&id='.$row['thread_id'].'">'.Display::return_icon($iconnotify, get_lang('NotifyMe')).'</a>';
|
|
}
|
|
|
|
if (api_is_allowed_to_edit(null,true) && $origin != 'learnpath') {
|
|
echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&forum='.Security::remove_XSS($my_forum).'&origin='.$origin.'&action=liststd&content=thread&gidReq='.$_SESSION['toolgroup'].'&id='.$row['thread_id'].'">'.Display::return_icon($icon_liststd,get_lang('StudentList'), array(), ICON_SIZE_SMALL).'</a>';
|
|
}
|
|
echo '</td></tr>';
|
|
}
|
|
$counter++;
|
|
}
|
|
}
|
|
echo '</table>';
|
|
echo isset($table_list) ? $table_list : '';
|
|
|
|
/* FOOTER */
|
|
|
|
if ($origin != 'learnpath') {
|
|
Display :: display_footer();
|
|
} |