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902 lines
35 KiB
902 lines
35 KiB
<?php
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/*
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==============================================================================
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Dokeos - elearning and course management software
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Copyright (c) 2004-2008 Dokeos S.A.
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Copyright (c) 2003 Ghent University (UGent)
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Copyright (c) 2001 Universite catholique de Louvain (UCL)
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For a full list of contributors, see "credits.txt".
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The full license can be read in "license.txt".
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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See the GNU General Public License for more details.
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Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
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Mail: info@dokeos.com
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==============================================================================
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*/
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/**
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==============================================================================
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* Function library for the links tool.
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*
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* This is a complete remake of the original link tool.
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* New features:
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* - Organize links into categories;
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* - favorites/bookmarks interface;
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* - move links up/down within a category;
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* - move categories up/down;
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* - expand/collapse all categories;
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* - add link to 'root' category => category-less link is always visible.
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*
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* @author Patrick Cool, complete remake (December 2003 - January 2004)
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* @author Rene Haentjens, CSV file import (October 2004)
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* @package dokeos.link
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==============================================================================
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*/
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/*
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==============================================================================
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FUNCTIONS
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==============================================================================
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*/
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/**
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* Used to add a link or a category
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* @param string $type, "link" or "category"
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* @todo replace strings by constants
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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function addlinkcategory($type)
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{
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global $catlinkstatus;
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global $msgErr;
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$ok = true;
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if ($type == "link")
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{
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$title = Security::remove_XSS($_POST['title']);
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$urllink = Security::remove_XSS($_POST['urllink']);
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$description = Security::remove_XSS($_POST['description']);
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$selectcategory = Security::remove_XSS($_POST['selectcategory']);
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if ($_POST['onhomepage'] == '') {
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$onhomepage = 0;
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$target='_self';//default target
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} else {
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$onhomepage = Security::remove_XSS($_POST['onhomepage']);
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$target = Security::remove_XSS($_POST['target_link']);
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}
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$urllink = trim($urllink);
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$title = trim($title);
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$description = trim($description);
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// if title is empty, an error occurs
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if (empty ($urllink) OR $urllink == 'http://')
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{
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$msgErr = get_lang('GiveURL');
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Display::display_error_message(get_lang('GiveURL'));
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$ok = false;
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}
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// if the title is empty, we use the url as the title
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else
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{
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if (empty ($title))
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{
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$title = $urllink;
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}
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// we check weither the $url starts with http://, if not we add this
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if (!strstr($urllink, '://'))
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{
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$urllink = "http://".$urllink;
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}
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// looking for the largest order number for this category
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$result = Database::query("SELECT MAX(display_order) FROM ".$tbl_link." WHERE category_id='".Database::escape_string($_POST['selectcategory'])."'");
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list ($orderMax) = Database::fetch_row($result);
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$order = $orderMax +1;
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$session_id = api_get_session_id();
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$sql = "INSERT INTO ".$tbl_link." (url, title, description, category_id, display_order, on_homepage, target, session_id) VALUES ('$urllink','$title','$description','$selectcategory','$order', '$onhomepage','$target','$session_id')";
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$catlinkstatus = get_lang('LinkAdded');
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Database::query($sql, __FILE__, __LINE__);
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$link_id = Database::insert_id();
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if ( (api_get_setting('search_enabled')=='true') && $link_id && extension_loaded('xapian')) {
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require_once(api_get_path(LIBRARY_PATH) .'search/DokeosIndexer.class.php');
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require_once(api_get_path(LIBRARY_PATH) .'search/IndexableChunk.class.php');
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require_once(api_get_path(LIBRARY_PATH) .'specific_fields_manager.lib.php');
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$courseid = api_get_course_id();
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$specific_fields = get_specific_field_list();
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$ic_slide = new IndexableChunk();
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// add all terms to db
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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if (isset($_REQUEST[$specific_field['code']])) {
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$sterms = trim($_REQUEST[$specific_field['code']]);
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if (!empty($sterms)) {
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$all_specific_terms .= ' '. $sterms;
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$ic_slide->addTerm(trim($sterm), $specific_field['code']);
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add_specific_field_value($specific_field['id'], $courseid, TOOL_LINK, $link_id, $sterm);
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}
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}
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}
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}
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// build the chunk to index
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$ic_slide->addValue("title", $title);
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$ic_slide->addCourseId($courseid);
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$ic_slide->addToolId(TOOL_LINK);
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$xapian_data = array(
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SE_COURSE_ID => $courseid,
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SE_TOOL_ID => TOOL_LINK,
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SE_DATA => array('link_id' => (int)$link_id),
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SE_USER => (int)api_get_user_id(),
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);
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$ic_slide->xapian_data = serialize($xapian_data);
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$description = $all_specific_terms .' '. $description;
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$ic_slide->addValue("content", $description);
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// add category name if set
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if (isset($_POST['selectcategory']) && $selectcategory>0) {
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$table_link_category = Database::get_course_table(TABLE_LINK_CATEGORY);
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$sql_cat = 'SELECT * FROM %s WHERE id=%d LIMIT 1';
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$sql_cat = sprintf($sql_cat, $table_link_category, (int)$selectcategory);
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$result = Database::query($sql_cat, __FILE__, __LINE__);
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if (Database::num_rows($result) == 1) {
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$row = Database::fetch_array($result);
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$ic_slide->addValue("category", $row['category_title']);
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}
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}
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$di = new DokeosIndexer();
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isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
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$di->connectDb(NULL, NULL, $lang);
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$di->addChunk($ic_slide);
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//index and return search engine document id
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$did = $di->index();
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if ($did) {
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// save it to db
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
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VALUES (NULL , \'%s\', \'%s\', %s, %s)';
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$sql = sprintf($sql, $tbl_se_ref, $courseid, TOOL_LINK, $link_id, $did);
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Database::query($sql,__FILE__,__LINE__);
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}
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}
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unset ($urllink, $title, $description, $selectcategory);
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Display::display_confirmation_message(get_lang('LinkAdded'));
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}
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} elseif ($type == "category") {
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$category_title = trim($_POST['category_title']);
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$description = trim($_POST['description']);
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if (empty ($category_title)) {
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$msgErr = get_lang('GiveCategoryName');
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Display::display_error_message(get_lang('GiveCategoryName'));
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$ok = false;
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} else {
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// looking for the largest order number for this category
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$result = Database::query("SELECT MAX(display_order) FROM ".$tbl_categories."");
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list ($orderMax) = Database::fetch_row($result);
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$order = $orderMax +1;
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$session_id = api_get_session_id();
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$sql = "INSERT INTO ".$tbl_categories." (category_title, description, display_order, session_id) VALUES ('".Security::remove_XSS($category_title)."','".Security::remove_XSS($description)."', '$order', '$session_id')";
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Database::query($sql, __FILE__, __LINE__);
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$catlinkstatus = get_lang('CategoryAdded');
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unset ($category_title, $description);
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Display::display_confirmation_message(get_lang('CategoryAdded'));
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}
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}
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// "WHAT'S NEW" notification : update last tool Edit
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if ($type == "link")
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{
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global $_user;
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global $_course;
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global $nameTools;
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api_item_property_update($_course, TOOL_LINK, $link_id, "LinkAdded", $_user['user_id']);
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}
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return $ok;
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}
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// End of the function addlinkcategory
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/**
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* Used to delete a link or a category
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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*/
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function deletelinkcategory($type)
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{
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global $catlinkstatus;
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global $_course;
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global $_user;
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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$TABLE_ITEM_PROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
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if ($type == "link")
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{
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global $id;
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// -> items are no longer fysically deleted, but the visibility is set to 2 (in item_property). This will
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// make a restore function possible for the platform administrator
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if (isset($_GET['id']) && $_GET['id']==strval(intval($_GET['id']))) {
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$sql="UPDATE $tbl_link SET on_homepage='0' WHERE id='".Database::escape_string($_GET['id'])."'";
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Database::query($sql,__FILE__,__LINE__);
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}
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api_item_property_update($_course, TOOL_LINK, $id, "delete", $_user['user_id']);
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delete_link_from_search_engine(api_get_course_id(), $id);
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$catlinkstatus = get_lang("LinkDeleted");
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unset ($id);
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Display::display_confirmation_message(get_lang('LinkDeleted'));
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}
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if ($type == "category")
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{
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global $id;
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// first we delete the category itself and afterwards all the links of this category.
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$sql = "DELETE FROM ".$tbl_categories." WHERE id='".Database::escape_string(Security::remove_XSS($_GET['id']))."'";
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Database::query($sql, __FILE__, __LINE__);
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$sql = "DELETE FROM ".$tbl_link." WHERE category_id='".Database::escape_string(Security::remove_XSS($_GET['id']))."'";
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$catlinkstatus = get_lang('CategoryDeleted');
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unset ($id);
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Database::query($sql, __FILE__, __LINE__);
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Display::display_confirmation_message(get_lang('CategoryDeleted'));
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}
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}
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/**
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* Removes a link from search engine database
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*
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* @param string $course_id Course code
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* @param int $document_id Document id to delete
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*/
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function delete_link_from_search_engine($course_id, $link_id) {
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// remove from search engine if enabled
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if (api_get_setting('search_enabled') == 'true') {
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
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$res = Database::query($sql, __FILE__, __LINE__);
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if (Database::num_rows($res) > 0) {
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$row = Database::fetch_array($res);
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require_once(api_get_path(LIBRARY_PATH) .'search/DokeosIndexer.class.php');
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$di = new DokeosIndexer();
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$di->remove_document((int)$row['search_did']);
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}
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$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
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Database::query($sql, __FILE__, __LINE__);
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// remove terms from db
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require_once(api_get_path(LIBRARY_PATH) .'specific_fields_manager.lib.php');
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delete_all_values_for_item($course_id, TOOL_DOCUMENT, $link_id);
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}
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}
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/**
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* Used to edit a link or a category
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* @todo rewrite the whole links tool because it is becoming completely cluttered,
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* code does not follow the coding conventions, does not use html_quickform, ...
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* some features were patched in
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* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
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* @todo replace the globals with the appropriate $_POST or $_GET values
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*/
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function editlinkcategory($type)
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{
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global $catlinkstatus;
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global $id;
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global $submitLink;
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global $submitCategory;
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global $_user;
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global $_course;
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global $nameTools;
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global $urllink;
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global $title;
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global $description;
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global $category;
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global $selectcategory;
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global $description;
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global $category_title;
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global $onhomepage;
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$tbl_link = Database :: get_course_table(TABLE_LINK);
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$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
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if ($type == "link")
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{
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// this is used to populate the link-form with the info found in the database
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$sql = "SELECT * FROM ".$tbl_link." WHERE id='".$_GET['id']."'";
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$result = Database::query($sql, __FILE__, __LINE__);
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if ($myrow = Database::fetch_array($result))
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{
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$urllink = $myrow["url"];
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$title = $myrow["title"];
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$description = $myrow["description"];
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$category = $myrow["category_id"];
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if ($myrow["on_homepage"] <> 0)
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{
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$onhomepage = "checked";
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}
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}
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// this is used to put the modified info of the link-form into the database
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if ($_POST['submitLink'])
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{
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if ($_POST['onhomepage'] == '') {
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$onhomepage = 0;
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$mytarget='';
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} else {
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$onhomepage = Security::remove_XSS($_POST['onhomepage']);
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$target = Security::remove_XSS($_POST['target_link']);
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$mytarget=",target='".$target."'";
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}
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// finding the old category_id
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$sql = "SELECT * FROM ".$tbl_link." WHERE id='".Database::escape_string(Security::remove_XSS($_POST['id']))."'";
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$result = Database::query($sql, __FILE__, __LINE__);
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$row = Database::fetch_array($result);
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$category_id = $row['category_id'];
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if ($category_id <> $_POST['selectcategory']) {
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$sql = "SELECT MAX(display_order) FROM ".$tbl_link." WHERE category_id='".$_POST['selectcategory']."'";
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$result = Database::query($sql);
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list ($max_display_order) = Database::fetch_row($result);
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$max_display_order ++;
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} else {
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$max_display_order = $row['display_order'];
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}
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$sql = "UPDATE ".$tbl_link." set url='".Database::escape_string(Security::remove_XSS($_POST['urllink']))."', title='".Database::escape_string(Security::remove_XSS($_POST['title']))."', description='".Database::escape_string(Security::remove_XSS($_POST['description']))."', category_id='".Database::escape_string(Security::remove_XSS($_POST['selectcategory']))."', display_order='".$max_display_order."', on_homepage='".Database::escape_string(Security::remove_XSS($onhomepage))." ' $mytarget WHERE id='".Database::escape_string(Security::remove_XSS($_POST['id']))."'";
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Database::query($sql, __FILE__, __LINE__);
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// update search enchine and its values table if enabled
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if (api_get_setting('search_enabled')=='true') {
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$link_id = $_POST['id'];
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$course_id = api_get_course_id();
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$link_url = $_POST['urllink'];
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$link_title = $_POST['title'];
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$link_description = $_POST['description'];
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// actually, it consists on delete terms from db, insert new ones, create a new search engine document, and remove the old one
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// get search_did
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$tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
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$sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s LIMIT 1';
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$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
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$res = Database::query($sql, __FILE__, __LINE__);
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if (Database::num_rows($res) > 0) {
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require_once(api_get_path(LIBRARY_PATH) . 'search/DokeosIndexer.class.php');
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require_once(api_get_path(LIBRARY_PATH) . 'search/IndexableChunk.class.php');
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require_once(api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php');
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$se_ref = Database::fetch_array($res);
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$specific_fields = get_specific_field_list();
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$ic_slide = new IndexableChunk();
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$all_specific_terms = '';
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foreach ($specific_fields as $specific_field) {
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delete_all_specific_field_value($course_id, $specific_field['id'], TOOL_LINK, $link_id);
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if (isset($_REQUEST[$specific_field['code']])) {
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$sterms = trim($_REQUEST[$specific_field['code']]);
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if (!empty($sterms)) {
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$all_specific_terms .= ' '. $sterms;
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$sterms = explode(',', $sterms);
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foreach ($sterms as $sterm) {
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$ic_slide->addTerm(trim($sterm), $specific_field['code']);
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add_specific_field_value($specific_field['id'], $course_id, TOOL_LINK, $link_id, $sterm);
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}
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}
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}
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}
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// build the chunk to index
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$ic_slide->addValue("title", $link_title);
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$ic_slide->addCourseId($course_id);
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$ic_slide->addToolId(TOOL_LINK);
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$xapian_data = array(
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SE_COURSE_ID => $course_id,
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SE_TOOL_ID => TOOL_LINK,
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SE_DATA => array('link_id' => (int)$link_id),
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SE_USER => (int)api_get_user_id(),
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);
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$ic_slide->xapian_data = serialize($xapian_data);
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$link_description = $all_specific_terms .' '. $link_description;
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$ic_slide->addValue("content", $link_description);
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// add category name if set
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if (isset($_POST['selectcategory']) && $selectcategory>0) {
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$table_link_category = Database::get_course_table(TABLE_LINK_CATEGORY);
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$sql_cat = 'SELECT * FROM %s WHERE id=%d LIMIT 1';
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$sql_cat = sprintf($sql_cat, $table_link_category, (int)$selectcategory);
|
|
$result = Database::query($sql_cat, __FILE__, __LINE__);
|
|
if (Database::num_rows($result) == 1) {
|
|
$row = Database::fetch_array($result);
|
|
$ic_slide->addValue("category", $row['category_title']);
|
|
}
|
|
}
|
|
|
|
$di = new DokeosIndexer();
|
|
isset($_POST['language'])? $lang=Database::escape_string($_POST['language']): $lang = 'english';
|
|
$di->connectDb(NULL, NULL, $lang);
|
|
$di->remove_document((int)$se_ref['search_did']);
|
|
$di->addChunk($ic_slide);
|
|
|
|
//index and return search engine document id
|
|
$did = $di->index();
|
|
if ($did) {
|
|
// save it to db
|
|
$sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=\'%s\'';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id);
|
|
Database::query($sql,__FILE__,__LINE__);
|
|
//var_dump($sql);
|
|
$sql = 'INSERT INTO %s (id, course_code, tool_id, ref_id_high_level, search_did)
|
|
VALUES (NULL , \'%s\', \'%s\', %s, %s)';
|
|
$sql = sprintf($sql, $tbl_se_ref, $course_id, TOOL_LINK, $link_id, $did);
|
|
Database::query($sql,__FILE__,__LINE__);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
// "WHAT'S NEW" notification: update table last_toolEdit
|
|
api_item_property_update($_course, TOOL_LINK, $_POST['id'], "LinkUpdated", $_user['user_id']);
|
|
|
|
Display::display_confirmation_message(get_lang('LinkModded'));
|
|
}
|
|
}
|
|
if ($type == "category")
|
|
{
|
|
// this is used to populate the category-form with the info found in the database
|
|
if (!$submitCategory)
|
|
{
|
|
$sql = "SELECT * FROM ".$tbl_categories." WHERE id='".$_GET['id']."'";
|
|
$result = Database::query($sql, __FILE__, __LINE__);
|
|
if ($myrow = Database::fetch_array($result))
|
|
{
|
|
$category_title = $myrow["category_title"];
|
|
$description = $myrow["description"];
|
|
}
|
|
}
|
|
// this is used to put the modified info of the category-form into the database
|
|
if ($submitCategory)
|
|
{
|
|
$sql = "UPDATE ".$tbl_categories." set category_title='".Database::escape_string(Security::remove_XSS($_POST['category_title']))."', description='".Database::escape_string(Security::remove_XSS($_POST['description']))."' WHERE id='".Database::escape_string(Security::remove_XSS($_POST['id']))."'";
|
|
Database::query($sql, __FILE__, __LINE__);
|
|
Display::display_confirmation_message(get_lang('CategoryModded'));
|
|
}
|
|
|
|
|
|
}
|
|
}
|
|
// END of function editlinkcat
|
|
|
|
/**
|
|
* creates a correct $view for in the URL
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function makedefaultviewcode($locatie)
|
|
{
|
|
global $aantalcategories;
|
|
global $view;
|
|
|
|
for ($j = 0; $j <= $aantalcategories -1; $j ++)
|
|
{
|
|
$view[$j] = 0;
|
|
}
|
|
$view[intval($locatie)] = "1";
|
|
}
|
|
// END of function makedefaultviewcode
|
|
|
|
/**
|
|
* changes the visibility of a link
|
|
* @todo add the changing of the visibility of a course
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function change_visibility($id, $scope)
|
|
{
|
|
global $_course;
|
|
global $_user;
|
|
$TABLE_ITEM_PROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
|
|
|
|
if ($scope == "link")
|
|
{
|
|
$sqlselect = "SELECT * FROM $TABLE_ITEM_PROPERTY WHERE tool='".TOOL_LINK."' and ref='".Database::escape_string($id)."'";
|
|
$result = Database::query($sqlselect);
|
|
$row = Database::fetch_array($result);
|
|
api_item_property_update($_course, TOOL_LINK, $id, $_GET['action'], $_user['user_id']);
|
|
}
|
|
|
|
Display::display_confirmation_message(get_lang('VisibilityChanged'));
|
|
}
|
|
|
|
/**
|
|
* displays all the links of a given category.
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function showlinksofcategory($catid)
|
|
{
|
|
global $is_allowed, $charset, $urlview, $up, $down, $_user;
|
|
$tbl_link = Database :: get_course_table(TABLE_LINK);
|
|
|
|
$TABLE_ITEM_PROPERTY = Database :: get_course_table(TABLE_ITEM_PROPERTY);
|
|
|
|
//condition for the session
|
|
$session_id = api_get_session_id();
|
|
$condition_session = api_get_session_condition($session_id);
|
|
|
|
$sqlLinks = "SELECT * FROM ".$tbl_link." link, ".$TABLE_ITEM_PROPERTY." itemproperties WHERE itemproperties.tool='".TOOL_LINK."' AND link.id=itemproperties.ref AND link.category_id='".$catid."' AND (itemproperties.visibility='0' OR itemproperties.visibility='1') $condition_session ORDER BY link.display_order DESC";
|
|
$result = Database::query($sqlLinks);
|
|
$numberoflinks = Database::num_rows($result);
|
|
|
|
echo '<table class="data_table" width="100%">';
|
|
$i = 1;
|
|
while ($myrow = Database::fetch_array($result)) {
|
|
//validacion when belongs to a session
|
|
$session_img = api_get_session_image($myrow['session_id'], $_user['status']);
|
|
|
|
if($i%2==0) $css_class = 'row_odd';
|
|
else $css_class = 'row_even';
|
|
|
|
$myrow[3] = text_filter($myrow[3]);
|
|
if ($myrow['visibility'] == '1')
|
|
{
|
|
echo "<tr class='".$css_class."'>", "<td align=\"center\" valign=\"middle\" width=\"15\">", "<a href=\"link_goto.php?".api_get_cidreq()."&link_id=", $myrow[0], "&link_url=", urlencode($myrow[1]), "\" target=\"_blank\">", "<img src=\"../../main/img/file_html.gif\" border=\"0\" alt=\"".get_lang('Link')."\"/>", "</a></td>", "<td width=\"80%\" valign=\"top\">", "<a href=\"link_goto.php?".api_get_cidreq()."&link_id=", $myrow[0], "&link_url=", urlencode($myrow[1]), "\" target=\"_blank\">", api_htmlentities($myrow[2],ENT_QUOTES,$charset), "</a>", $session_img , "<br/>", $myrow[3], "";
|
|
}
|
|
else
|
|
{
|
|
if (api_is_allowed_to_edit(null,true))
|
|
{
|
|
echo "<tr class='".$css_class."'>", "<td align=\"center\" valign=\"middle\" width=\"15\">", "<a href=\"link_goto.php?".api_get_cidreq()."&link_id=", $myrow[0], "&link_url=", urlencode($myrow[1]), "\" target=\"_blank\" class=\"invisible\">", Display::return_icon('file_html_na.gif', get_lang('Link')),"</a></td>", "<td width=\"80%\" valign=\"top\">", "<a href=\"link_goto.php?".api_get_cidreq()."&link_id=", $myrow[0], "&link_url=", urlencode($myrow[1]), "\" target=\"_blank\" class=\"invisible\">", api_htmlentities($myrow[2],ENT_QUOTES,$charset), "</a>\n", $session_img , "<br />", $myrow[3], "";
|
|
}
|
|
}
|
|
|
|
echo '<td style="text-align:center;">';
|
|
if (api_is_allowed_to_edit(null,true))
|
|
{
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=editlink&category=".(!empty($category)?$category:'')."&id=".$myrow[0]." &urlview=$urlview \" title=\"".get_lang('Modify')."\" >", "<img src=\"../img/edit.gif\" border=\"0\" alt=\"", get_lang('Modify'), "\" />", "</a>";
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=deletelink&id=", $myrow[0], "&urlview=", $urlview, "\" onclick=\"javascript:if(!confirm('".get_lang('LinkDelconfirm')."')) return false;\" title=\"".get_lang('Delete')."\" >", "<img src=\"../img/delete.gif\" border=\"0\" alt=\"", get_lang('Delete'), "\" />", "</a>";
|
|
// DISPLAY MOVE UP COMMAND only if it is not the top link
|
|
if ($i != 1)
|
|
{
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&urlview=".$urlview."&up=", $myrow["id"], "\" title=\"".get_lang('Up')."\" >", "<img src=../img/up.gif border=0 alt=\"".get_lang('Up')."\"/>", "</a>\n";
|
|
}
|
|
else
|
|
{
|
|
echo '<img src="'.api_get_path(WEB_IMG_PATH).'up_na.gif" border=0 alt="'.get_lang('Up').'"/>';
|
|
}
|
|
|
|
// DISPLAY MOVE DOWN COMMAND only if it is not the bottom link
|
|
if ($i < $numberoflinks)
|
|
{
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&urlview=".$urlview."&down=".$myrow["id"]."\" title=\"".get_lang('Down')."\" >", "<img src=\"../img/down.gif\" border=\"0\" alt=\"".get_lang('Down')."\"/>", "</a>\n";
|
|
}
|
|
else
|
|
{
|
|
echo '<img src="'.api_get_path(WEB_IMG_PATH).'down_na.gif" border=0 alt="'.get_lang('Down').'"/>';
|
|
}
|
|
|
|
if ($myrow['visibility'] == "1")
|
|
{
|
|
echo '<a href="link.php?'.api_get_cidreq().'&action=invisible&id='.$myrow['id'].'&scope=link&urlview='.$urlview.'" title="'.get_lang('Hide').'"><img src="../img/visible.gif" border="0" /></a>';
|
|
}
|
|
if ($myrow['visibility'] == "0")
|
|
{
|
|
echo '<a href="link.php?'.api_get_cidreq().'&action=visible&id='.$myrow['id'].'&scope=link&urlview='.$urlview.'" title="'.get_lang('Show').'"><img src="../img/invisible.gif" border="0" /></a>';
|
|
}
|
|
}
|
|
echo '</td>';
|
|
echo '</tr>';
|
|
$i ++;
|
|
}
|
|
echo '</table>';
|
|
}
|
|
|
|
/**
|
|
* displays the edit, delete and move icons
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function showcategoryadmintools($categoryid)
|
|
{
|
|
global $urlview;
|
|
global $aantalcategories;
|
|
global $catcounter;
|
|
echo '<a href="'.api_get_self().'?'.api_get_cidreq().'&action=editcategory&id='.$categoryid.'&urlview='.$urlview.'" title='.get_lang('Modify').' "><img src="../img/edit.gif" border="0" alt="'.get_lang('Modify').' "/></a>';
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&action=deletecategory&id=", $categoryid, "&urlview=$urlview\" onclick=\"javascript:if(!confirm('".get_lang('CategoryDelconfirm')."')) return false;\">", "<img src=\"../img/delete.gif\" border=\"0\" alt=\"", get_lang('Delete'), "\"/>", "</a>";
|
|
|
|
// DISPLAY MOVE UP COMMAND only if it is not the top link
|
|
if ($catcounter != 1)
|
|
{
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&catmove=true&up=", $categoryid, "&urlview=$urlview\" title=\"".get_lang('Up')."\" >", "<img src=../img/up.gif border=0 alt=\"".get_lang('Up')."\"/>", "</a>\n";
|
|
}
|
|
else
|
|
{
|
|
echo '<img src="'.api_get_path(WEB_IMG_PATH).'up_na.gif" border=0 alt="'.get_lang('Up').'"/>';
|
|
}
|
|
// DISPLAY MOVE DOWN COMMAND only if it is not the bottom link
|
|
if ($catcounter < $aantalcategories)
|
|
{
|
|
echo "<a href=\"".api_get_self()."?".api_get_cidreq()."&catmove=true&down=".$categoryid."&urlview=$urlview\">", "<img src=\"../img/down.gif\" border=\"0\" alt=\"".get_lang('Down')."\"/>", "</a>\n";
|
|
}
|
|
else
|
|
{
|
|
echo '<img src="'.api_get_path(WEB_IMG_PATH).'down_na.gif" border=0 alt="'.get_lang('Down').'"/>';
|
|
}
|
|
$catcounter ++;
|
|
}
|
|
|
|
/**
|
|
* move a link or a linkcategory up or down
|
|
* @author Patrick Cool <patrick.cool@UGent.be>, Ghent University
|
|
*/
|
|
function movecatlink($catlinkid)
|
|
{
|
|
global $catmove;
|
|
global $up;
|
|
global $down;
|
|
$tbl_link = Database :: get_course_table(TABLE_LINK);
|
|
$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
|
|
|
|
if (!empty($_GET['down']))
|
|
{
|
|
$thiscatlinkId = $_GET['down'];
|
|
$sortDirection = "DESC";
|
|
}
|
|
if (!empty($_GET['up']))
|
|
{
|
|
$thiscatlinkId = Security::remove_XSS($_GET['up']);
|
|
$sortDirection = "ASC";
|
|
}
|
|
|
|
// We check if it is a category we are moving or a link. If it is a category, a querystring catmove = true is present in the url
|
|
if ($catmove == "true")
|
|
{
|
|
$movetable = $tbl_categories;
|
|
$catid = $catlinkid;
|
|
}
|
|
else
|
|
{
|
|
$movetable = $tbl_link;
|
|
//getting the category of the link
|
|
if(!empty($thiscatlinkId))
|
|
{
|
|
$sql = "SELECT category_id from ".$movetable." WHERE id='$thiscatlinkId'";
|
|
$result = Database::query($sql, __FILE__, __LINE__);
|
|
$catid = Database::fetch_array($result);
|
|
}
|
|
}
|
|
|
|
// this code is copied and modified from announcements.php
|
|
if (!empty($sortDirection))
|
|
{
|
|
if (!in_array(trim(strtoupper($sortDirection)), array ('ASC', 'DESC')))
|
|
die("Bad sort direction used."); //sanity check of sortDirection var
|
|
if ($catmove == "true")
|
|
{
|
|
$sqlcatlinks = "SELECT id, display_order FROM ".$movetable." ORDER BY display_order $sortDirection";
|
|
}
|
|
else
|
|
{
|
|
$sqlcatlinks = "SELECT id, display_order FROM ".$movetable." WHERE category_id='".$catid[0]."' ORDER BY display_order $sortDirection";
|
|
}
|
|
$linkresult = Database::query($sqlcatlinks);
|
|
while ($sortrow = Database::fetch_array($linkresult))
|
|
{
|
|
// STEP 2 : FOUND THE NEXT ANNOUNCEMENT ID AND ORDER, COMMIT SWAP
|
|
// This part seems unlogic, but it isn't . We first look for the current link with the querystring ID
|
|
// and we know the next iteration of the while loop is the next one. These should be swapped.
|
|
if (isset ($thislinkFound) && $thislinkFound == true)
|
|
{
|
|
$nextlinkId = $sortrow["id"];
|
|
$nextlinkOrdre = $sortrow["display_order"];
|
|
|
|
Database::query("UPDATE ".$movetable."
|
|
SET display_order = '$nextlinkOrdre'
|
|
WHERE id = '$thiscatlinkId'");
|
|
|
|
Database::query("UPDATE ".$movetable."
|
|
SET display_order = '$thislinkOrdre'
|
|
WHERE id = '$nextlinkId'");
|
|
|
|
break;
|
|
}
|
|
|
|
if ($sortrow["id"] == $thiscatlinkId)
|
|
{
|
|
$thislinkOrdre = $sortrow["display_order"];
|
|
$thislinkFound = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
Display::display_confirmation_message(get_lang('LinkMoved'));
|
|
}
|
|
|
|
/**
|
|
* CSV file import functions
|
|
* @author Rene Haentjens , Ghent University
|
|
*/
|
|
function get_cat($catname) // get category id (existing or make new)
|
|
{
|
|
$tbl_categories = Database :: get_course_table(TABLE_LINK_CATEGORY);
|
|
|
|
$result = Database::query("SELECT `id` FROM ".$tbl_categories." WHERE `category_title`='".addslashes($catname)."'", __FILE__, __LINE__);
|
|
|
|
if (Database::num_rows($result) >= 1 && ($row = Database::fetch_array($result)))
|
|
return $row['id']; // several categories with same name: take first
|
|
|
|
$result = Database::query("SELECT MAX(display_order) FROM ".$tbl_categories."", __FILE__, __LINE__);
|
|
list ($max_order) = Database::fetch_row($result);
|
|
|
|
Database::query("INSERT INTO ".$tbl_categories." (category_title, description, display_order) VALUES ('".addslashes($catname)."','','". ($max_order +1)."')", __FILE__, __LINE__);
|
|
|
|
return Database::insert_id();
|
|
}
|
|
/**
|
|
* CSV file import functions
|
|
* @author Rene Haentjens , Ghent University
|
|
*/
|
|
function put_link($url, $cat, $title, $description, $on_homepage, $hidden)
|
|
{
|
|
$tbl_link = Database :: get_course_table(TABLE_LINK);
|
|
|
|
$urleq = "url='".addslashes($url)."'";
|
|
$cateq = "category_id=".$cat;
|
|
|
|
$result = Database::query("SELECT id FROM $tbl_link WHERE ".$urleq.' AND '.$cateq, __FILE__, __LINE__);
|
|
|
|
if (Database::num_rows($result) >= 1 && ($row = Database::fetch_array($result)))
|
|
{
|
|
Database::query("UPDATE $tbl_link set title='".addslashes($title)."', description='".addslashes($description)."' WHERE id='".addslashes($id = $row['id'])."'", __FILE__, __LINE__);
|
|
|
|
$lang_link = get_lang('update_link');
|
|
$ipu = "LinkUpdated";
|
|
$rv = 1; // 1= upd
|
|
}
|
|
else // add new link
|
|
{
|
|
$result = Database::query("SELECT MAX(display_order) FROM $tbl_link WHERE category_id='".addslashes($cat)."'", __FILE__, __LINE__);
|
|
list ($max_order) = Database::fetch_row($result);
|
|
|
|
Database::query("INSERT INTO $tbl_link (url, title, description, category_id, display_order, on_homepage) VALUES ('".addslashes($url)."','".addslashes($title)."','".addslashes($description)."','".addslashes($cat)."','". ($max_order +1)."','".$on_homepage."')", __FILE__, __LINE__);
|
|
|
|
$id = Database::insert_id();
|
|
$lang_link = get_lang('new_link');
|
|
$ipu = "LinkAdded";
|
|
$rv = 2; // 2= new
|
|
}
|
|
|
|
global $_course, $nameTools, $_user;
|
|
api_item_property_update($_course, TOOL_LINK, $id, $ipu, $_user['user_id']);
|
|
|
|
if ($hidden && $ipu == "LinkAdded")
|
|
api_item_property_update($_course, TOOL_LINK, $id, "invisible", $_user['user_id']);
|
|
|
|
return $rv;
|
|
}
|
|
/**
|
|
* CSV file import functions
|
|
* @author Rene Haentjens , Ghent University
|
|
*/
|
|
function import_link($linkdata) // url, category_id, title, description, ...
|
|
{
|
|
// field names used in the uploaded file
|
|
$known_fields = array ('url', 'category', 'title', 'description', 'on_homepage', 'hidden');
|
|
$hide_fields = array ('kw', 'kwd', 'kwds', 'keyword', 'keywords');
|
|
|
|
// all other fields are added to description, as "name:value"
|
|
|
|
// only one hide_field is assumed to be present, <> is removed from value
|
|
|
|
if (!($url = trim($linkdata['url'])) || !($title = trim($linkdata['title'])))
|
|
return 0; // 0= fail
|
|
|
|
$cat = ($catname = trim($linkdata['category'])) ? get_cat($catname) : 0;
|
|
|
|
$regs = array(); // will be passed to ereg()
|
|
foreach ($linkdata as $key => $value)
|
|
if (!in_array($key, $known_fields))
|
|
if (in_array($key, $hide_fields) && ereg('^<?([^>]*)>?$', $value, $regs)) // possibly in <...>
|
|
if (($kwlist = trim($regs[1])) != '')
|
|
$kw = '<i kw="'.htmlspecialchars($kwlist).'">';
|
|
else
|
|
$kw = '';
|
|
// i.e. assume only one of the $hide_fields will be present
|
|
// and if found, hide the value as expando property of an <i> tag
|
|
elseif (trim($value)) $d .= ', '.$key.':'.$value;
|
|
if ($d)
|
|
$d = substr($d, 2).' - ';
|
|
|
|
return put_link($url, $cat, $title, $kw.ereg_replace('\[((/?(b|big|i|small|sub|sup|u))|br/)\]', '<\\1>', htmlspecialchars($d.$linkdata['description'])). ($kw ? '</i>' : ''), $linkdata['on_homepage'] ? '1' : '0', $linkdata['hidden'] ? '1' : '0');
|
|
// i.e. allow some BBcode tags, e.g. [b]...[/b]
|
|
}
|
|
/**
|
|
* CSV file import functions
|
|
* @author Rene Haentjens , Ghent University
|
|
*/
|
|
function import_csvfile()
|
|
{
|
|
global $catlinkstatus; // feedback message to user
|
|
|
|
if (is_uploaded_file($filespec = $_FILES['import_file']['tmp_name']) && filesize($filespec) && ($myFile = @ fopen($filespec, 'r')))
|
|
{
|
|
// read first line of file (column names) and find ',' or ';'
|
|
$listsep = strpos($colnames = trim(fgets($myFile)), ',') !== FALSE ? ',' : (strpos($colnames, ';') !== FALSE ? ';' : '');
|
|
|
|
if ($listsep)
|
|
{
|
|
$columns = array_map('strtolower', explode($listsep, $colnames));
|
|
|
|
if (in_array('url', $columns) && in_array('title', $columns))
|
|
{
|
|
$stats = array (0, 0, 0); // fails, updates, inserts
|
|
|
|
while (($data = fgetcsv($myFile, 32768, $listsep)))
|
|
{
|
|
foreach ($data as $i => $text)
|
|
$linkdata[$columns[$i]] = $text;
|
|
// $linkdata['url', 'title', ...]
|
|
|
|
$stats[import_link($linkdata)]++;
|
|
unset ($linkdata);
|
|
}
|
|
|
|
$catlinkstatus = '';
|
|
|
|
if ($stats[0])
|
|
$catlinkstatus .= $stats[0].' '.get_lang('CsvLinesFailed');
|
|
if ($stats[1])
|
|
$catlinkstatus .= $stats[1].' '.get_lang('CsvLinesOld');
|
|
if ($stats[2])
|
|
$catlinkstatus .= $stats[2].' '.get_lang('CsvLinesNew');
|
|
}
|
|
else
|
|
$catlinkstatus = get_lang('CsvFileNoURL'). ($colnames ? get_lang('CsvFileLine1').htmlspecialchars(substr($colnames, 0, 200)).'...' : '');
|
|
}
|
|
else
|
|
$catlinkstatus = get_lang('CsvFileNoSeps'). ($colnames ? get_lang('CsvFileLine1').htmlspecialchars(substr($colnames, 0, 200)).'...' : '');
|
|
fclose($myFile);
|
|
}
|
|
else
|
|
$catlinkstatus = get_lang('CsvFileNotFound');
|
|
}
|
|
?>
|
|
|