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556 lines
21 KiB
556 lines
21 KiB
<?php
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/* For licensing terms, see /license.txt */
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/**
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* These are functions used in gradebook
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*
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* @author Stijn Konings <konings.stijn@skynet.be>, Hogeschool Ghent
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* @author Julio Montoya <gugli100@gmail.com> adding security functions
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* @version april 2007
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*/
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require_once 'gradebook_functions_users.inc.php';
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/**
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* Adds a resource to the unique gradebook of a given course
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* @param string Course code
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* @param int Resource type (use constants defined in linkfactory.class.php)
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* @param int Resource ID in the corresponding tool
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* @param string Resource name to show in the gradebook
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* @param int Resource weight to set in the gradebook
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* @param int Resource max
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* @param string Resource description
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* @param string Date
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* @param int Visibility (0 hidden, 1 shown)
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* @param int Session ID (optional or 0 if not defined)
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* @return boolean True on success, false on failure
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*/
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function add_resource_to_course_gradebook($course_code, $resource_type, $resource_id, $resource_name='', $weight=0, $max=0, $resource_description='', $date=null, $visible=0, $session_id = 0) {
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/* See defines in lib/be/linkfactory.class.php
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define('LINK_EXERCISE',1);
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define('LINK_DROPBOX',2);
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define('LINK_STUDENTPUBLICATION',3);
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define('LINK_LEARNPATH',4);
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define('LINK_FORUM_THREAD',5),
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define('LINK_WORK',6);
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*/
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$category = 0;
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be.inc.php';
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$link= LinkFactory :: create($resource_type);
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$link->set_user_id(api_get_user_id());
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$link->set_course_code($course_code);
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// TODO find the corresponding category (the first one for this course, ordered by ID)
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$t = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
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$sql = "SELECT * FROM $t WHERE course_code = '".Database::escape_string($course_code)."' ";
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if (!empty($session_id)) {
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$sql .= " AND session_id = ".(int)$session_id;
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} else {
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$sql .= " AND (session_id IS NULL OR session_id = 0) ";
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}
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$sql .= " ORDER BY id";
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$res = Database::query($sql);
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if (Database::num_rows($res)<1){
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//there is no unique category for this course+session combination,
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// => create one
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$cat= new Category();
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if (!empty($session_id)) {
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$my_session_id=api_get_session_id();
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$s_name = api_get_session_name($my_session_id);
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$cat->set_name($course_code.' - '.get_lang('Session').' '.$s_name);
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$cat->set_session_id($session_id);
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} else {
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$cat->set_name($course_code);
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}
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$cat->set_course_code($course_code);
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$cat->set_description(null);
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$cat->set_user_id(api_get_user_id());
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$cat->set_parent_id(0);
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$cat->set_weight(100);
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$cat->set_visible(0);
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$can_edit = api_is_allowed_to_edit(true, true);
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if ($can_edit) {
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$cat->add();
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}
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$category = $cat->get_id();
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unset ($cat);
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} else {
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$row = Database::fetch_array($res);
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$category = $row['id'];
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}
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$link->set_category_id($category);
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if ($link->needs_name_and_description()) {
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$link->set_name($resource_name);
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} else {
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$link->set_ref_id($resource_id);
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}
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$link->set_weight($weight);
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if ($link->needs_max()) {
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$link->set_max($max);
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}
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if ($link->needs_name_and_description()) {
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$link->set_description($resource_description);
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}
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$link->set_visible(empty ($visible) ? 0 : 1);
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if (!empty($session_id)) {
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$link->set_session_id($session_id);
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}
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$link->add();
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return true;
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}
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function block_students() {
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if (!api_is_allowed_to_create_course()) {
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require_once api_get_path(INCLUDE_PATH).'header.inc.php';
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api_not_allowed();
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}
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}
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/**
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* Returns the info header for the user result page
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* @param $userid
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*/
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/**
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* Returns the course name from a given code
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* @param string $code
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*/
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function get_course_name_from_code($code) {
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$tbl_main_categories= Database :: get_main_table(TABLE_MAIN_COURSE);
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$sql= 'SELECT title, code FROM ' . $tbl_main_categories . 'WHERE code = "' . Database::escape_string($code) . '"';
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$result= Database::query($sql);
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if ($col= Database::fetch_array($result)) {
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return $col['title'];
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}
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}
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/**
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* Builds an img tag for a gradebook item
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* @param string $type value returned by a gradebookitem's get_icon_name()
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*/
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function build_type_icon_tag($kind) {
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return '<img src="' . get_icon_file_name ($kind) . '" border="0" hspace="5" align="middle" alt="" />';
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}
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/**
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* Returns the icon filename for a gradebook item
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* @param string $type value returned by a gradebookitem's get_icon_name()
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*/
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function get_icon_file_name ($type) {
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switch ($type) {
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case 'cat':
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$icon = 'icons/22/gradebook.png';
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break;
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case 'evalempty':
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$icon = 'icons/22/empty_evaluation.png';
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break;
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case 'evalnotempty':
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$icon = 'icons/22/no_empty_evaluation.png';
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break;
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case 'exercise':
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case LINK_EXERCISE:
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$icon = 'quiz.gif';
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break;
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case 'learnpath':
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case LINK_LEARNPATH:
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$icon = 'icons/22/learnpath.png';
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break;
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case 'studentpublication':
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case LINK_STUDENTPUBLICATION:
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$icon = 'works.gif';
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break;
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case 'link':
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$icon = 'link.gif';
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break;
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case 'forum':
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case LINK_FORUM_THREAD:
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$icon = 'forum.gif';
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break;
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case 'attendance':
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case LINK_ATTENDANCE:
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$icon = 'attendance.gif';
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break;
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case 'survey':
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case LINK_SURVEY:
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$icon = 'survey.gif';
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break;
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case 'dropbox':
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case LINK_DROPBOX:
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$icon = 'dropbox.gif';
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break;
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default:
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$icon = 'link.gif';
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break;
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}
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return api_get_path(WEB_IMG_PATH).$icon;
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}
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/**
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* Builds the course or platform admin icons to edit a category
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* @param object $cat category object
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* @param int $selectcat id of selected category
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*/
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function build_edit_icons_cat($cat, $selectcat) {
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$show_message=$cat->show_message_resource_delete($cat->get_course_code());
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if ($show_message===false) {
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$visibility_icon= ($cat->is_visible() == 0) ? 'invisible' : 'visible';
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$visibility_command= ($cat->is_visible() == 0) ? 'set_visible' : 'set_invisible';
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$modify_icons= '<a href="gradebook_edit_cat.php?editcat=' . $cat->get_id() . ' &cidReq='.$cat->get_course_code().'">'.Display::return_icon('edit.png', get_lang('Modify'),'','22').'</a>';
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$modify_icons .= ' <a href="' . api_get_self() . '?deletecat=' . $cat->get_id() . '&selectcat=' . $selectcat . '&cidReq='.$cat->get_course_code().'" onclick="return confirmation();">'.Display::return_icon('delete.png', get_lang('DeleteAll'),'','22').'</a>';
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//no move ability for root categories
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if ($cat->is_movable()) {
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$modify_icons .= ' <a href="' . api_get_self() . '?movecat=' . $cat->get_id() . '&selectcat=' . $selectcat . ' &cidReq='.$cat->get_course_code().'"><img src="../img/deplacer_fichier.gif" border="0" title="' . get_lang('Move') . '" alt="" /></a>';
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} else {
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//$modify_icons .= ' <img src="../img/deplacer_fichier_na.gif" border="0" title="' . get_lang('Move') . '" alt="" />';
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}
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$modify_icons .= ' <a href="' . api_get_self() . '?visiblecat=' . $cat->get_id() . '&' . $visibility_command . '=&selectcat=' . $selectcat . ' ">'.Display::return_icon($visibility_icon.'.png', get_lang('Visible'),'','22').'</a>';
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return $modify_icons;
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}
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}
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/**
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* Builds the course or platform admin icons to edit an evaluation
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* @param object $eval evaluation object
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* @param int $selectcat id of selected category
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*/
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function build_edit_icons_eval($eval, $selectcat) {
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$status=CourseManager::get_user_in_course_status(api_get_user_id(), api_get_course_id());
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$eval->get_course_code();
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$cat=new Category();
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$message_eval=$cat->show_message_resource_delete($eval->get_course_code());
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if ($message_eval===false) {
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$visibility_icon= ($eval->is_visible() == 0) ? 'invisible' : 'visible';
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$visibility_command= ($eval->is_visible() == 0) ? 'set_visible' : 'set_invisible';
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$modify_icons= '<a href="gradebook_edit_eval.php?editeval=' . $eval->get_id() . ' &cidReq='.$eval->get_course_code().'">
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'.Display::return_icon('edit.png', get_lang('Modify'),'','22').'</a>';
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$modify_icons .= ' <a href="' . api_get_self() . '?deleteeval=' . $eval->get_id() . '&selectcat=' . $selectcat . ' &cidReq='.$eval->get_course_code().'" onclick="return confirmation();">'.Display::return_icon('delete.png', get_lang('Delete'),'','22').'</a>';
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//$modify_icons .= ' <a href="' . api_get_self() . '?moveeval=' . $eval->get_id() . '&selectcat=' . $selectcat . '"><img src="../img/deplacer_fichier.gif" border="0" title="' . get_lang('Move') . '" alt="" /></a>';
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$modify_icons .= ' <a href="' . api_get_self() . '?visibleeval=' . $eval->get_id() . '&' . $visibility_command . '=&selectcat=' . $selectcat . ' ">'.Display::return_icon($visibility_icon.'.png', get_lang('Visible'),'','22').'</a>';
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if (api_is_allowed_to_edit(null, true)){
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$modify_icons .= ' <a href="gradebook_showlog_eval.php?visiblelog=' . $eval->get_id() . '&selectcat=' . $selectcat . ' &cidReq='.$eval->get_course_code().'">'.Display::return_icon('history.png', get_lang('GradebookQualifyLog'),'','22').'</a>';
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}
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return $modify_icons;
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}
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}
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/**
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* Builds the course or platform admin icons to edit a link
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* @param object $linkobject
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* @param int $selectcat id of selected category
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*/
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function build_edit_icons_link($link, $selectcat) {
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$link->get_course_code();
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$cat=new Category();
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$message_link=$cat->show_message_resource_delete($link->get_course_code());
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if ($message_link===false) {
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$visibility_icon= ($link->is_visible() == 0) ? 'invisible' : 'visible';
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$visibility_command= ($link->is_visible() == 0) ? 'set_visible' : 'set_invisible';
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$modify_icons= '<a href="gradebook_edit_link.php?editlink=' . $link->get_id() . ' &cidReq='.$link->get_course_code().'">'.Display::return_icon('edit.png', get_lang('Modify'),'','22').'</a>';
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$modify_icons .= ' <a href="' . api_get_self() . '?deletelink=' . $link->get_id() . '&selectcat=' . $selectcat . ' &cidReq='.$link->get_course_code().'" onclick="return confirmation();">'.Display::return_icon('delete.png', get_lang('Delete'),'','22').'</a>';
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//$modify_icons .= ' <a href="' . api_get_self() . '?movelink=' . $link->get_id() . '&selectcat=' . $selectcat . '"><img src="../img/deplacer_fichier.gif" border="0" title="' . get_lang('Move') . '" alt="" /></a>';
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$modify_icons .= ' <a href="' . api_get_self() . '?visiblelink=' . $link->get_id() . '&' . $visibility_command . '=&selectcat=' . $selectcat . ' ">'.Display::return_icon($visibility_icon.'.png', get_lang('Visible'),'','22').'</a>';
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$modify_icons .= ' <a href="gradebook_showlog_link.php?visiblelink=' . $link->get_id() . '&selectcat=' . $selectcat . '&cidReq='.$link->get_course_code().'">'.Display::return_icon('history.png', get_lang('GradebookQualifyLog'),'','22').'</a>';
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//if (api_is_course_admin()) {
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//$modify_icons .= ' <a href="gradebook_showlog_eval.php?visiblelog=' . $eval->get_id() . '&' . $visibility_command . '=&selectcat=' . $selectcat . '">'.Display::return_icon('history.png', get_lang('GradebookQualifyLog'),'','22').'</a>';
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//}
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return $modify_icons;
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}
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}
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/**
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* Checks if a resource is in the unique gradebook of a given course
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* @param string Course code
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* @param int Resource type (use constants defined in linkfactory.class.php)
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* @param int Resource ID in the corresponding tool
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* @param int Session ID (optional - 0 if not defined)
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* @return int false on error or link ID
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*/
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function is_resource_in_course_gradebook($course_code, $resource_type, $resource_id, $session_id = 0) {
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/linkfactory.class.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be.inc.php';
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be/linkfactory.class.php';
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// TODO find the corresponding category (the first one for this course, ordered by ID)
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$t = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CATEGORY);
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$l = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
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$sql = "SELECT * FROM $t WHERE course_code = '".Database::escape_string($course_code)."' ";
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if (!empty($session_id)) {
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$sql .= " AND session_id = ".(int)$session_id;
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} else {
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$sql .= " AND (session_id IS NULL OR session_id = 0) ";
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}
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$sql .= " ORDER BY id";
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$res = Database::query($sql);
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if (Database::num_rows($res)<1) {
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return false;
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}
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$row = Database::fetch_array($res);
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$category = $row['id'];
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$sql = "SELECT id FROM $l l WHERE l.category_id = $category AND type = ".(int) $resource_type." and ref_id = ".(int) $resource_id;
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$res = Database::query($sql);
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if (Database::num_rows($res)<1) {
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return false;
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}
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$row = Database::fetch_array($res);
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return $row['id'];
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}
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/**
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* Remove a resource from the unique gradebook of a given course
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* @param int Link/Resource ID
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* @return bool false on error, true on success
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*/
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function remove_resource_from_course_gradebook($link_id) {
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if ( empty($link_id) ) { return false; }
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require_once api_get_path(SYS_CODE_PATH).'gradebook/lib/be.inc.php';
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// TODO find the corresponding category (the first one for this course, ordered by ID)
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$l = Database::get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
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$sql = "DELETE FROM $l WHERE id = ".(int)$link_id;
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$res = Database::query($sql);
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return true;
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}
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/**
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* Return the database name
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* @param int
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* @return String
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*/
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function get_database_name_by_link_id($id_link) {
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$course_table = Database::get_main_table(TABLE_MAIN_COURSE);
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$tbl_grade_links = Database :: get_main_table(TABLE_MAIN_GRADEBOOK_LINK);
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$res=Database::query('SELECT db_name FROM '.$course_table.' c INNER JOIN '.$tbl_grade_links.' l
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ON c.code=l.course_code WHERE l.id='.intval($id_link).' OR l.category_id='.intval($id_link));
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$my_db_name=Database::fetch_array($res,'ASSOC');
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return $my_db_name['db_name'];
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}
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function get_table_type_course($type,$course) {
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global $_configuration;
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global $table_evaluated;
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return Database::get_course_table($table_evaluated[$type][0],$_configuration['db_prefix'].$course);
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}
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function get_printable_data($users,$alleval, $alllinks) {
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$datagen = new FlatViewDataGenerator ($users, $alleval, $alllinks);
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$offset = isset($_GET['offset']) ? $_GET['offset'] : '0';
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$offset = intval($offset);
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$count = (($offset + 10) > $datagen->get_total_items_count()) ? ($datagen->get_total_items_count() - $offset) : 10;
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$header_names = $datagen->get_header_names($offset, $count, true);
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$data_array = $datagen->get_data(FlatViewDataGenerator :: FVDG_SORT_LASTNAME, 0, null, $offset, $count, true,true);
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$newarray = array();
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foreach ($data_array as $data) {
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$newarray[] = array_slice($data, 1);
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}
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return array ($header_names, $newarray);
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}
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/**
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* XML-parser: handle character data
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*/
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function character_data($parser, $data) {
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global $current_value;
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$current_value= $data;
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}
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/**
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* XML-parser: handle end of element
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*/
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function element_end($parser, $data) {
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global $user;
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global $users;
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global $current_value;
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switch ($data) {
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case 'Result' :
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$users[]= $user;
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break;
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default :
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$user[$data]= $current_value;
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break;
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}
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}
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/**
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* XML-parser: handle start of element
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*/
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function element_start($parser, $data) {
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global $user;
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global $current_tag;
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switch ($data) {
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case 'Result' :
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$user= array ();
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break;
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default :
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$current_tag= $data;
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}
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}
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function overwritescore($resid, $importscore, $eval_max) {
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$result= Result :: load($resid);
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if ($importscore > $eval_max) {
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header('Location: gradebook_view_result.php?selecteval=' .Security::remove_XSS($_GET['selecteval']) . '&overwritemax=');
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exit;
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}
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$result[0]->set_score($importscore);
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$result[0]->save();
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unset ($result);
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}
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/**
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* Read the XML-file
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* @param string $file Path to the XML-file
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* @return array All userinformation read from the file
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*/
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function parse_xml_data($file) {
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global $current_tag;
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global $current_value;
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global $user;
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global $users;
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$users= array ();
|
|
$parser= xml_parser_create();
|
|
xml_set_element_handler($parser, 'element_start', 'element_end');
|
|
xml_set_character_data_handler($parser, "character_data");
|
|
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, false);
|
|
xml_parse($parser, file_get_contents($file));
|
|
xml_parser_free($parser);
|
|
return $users;
|
|
}
|
|
/**
|
|
* update user info about certificate
|
|
* @param int The category id
|
|
* @param int The user id
|
|
* @param string the path name of the certificate
|
|
* @return void()
|
|
*/
|
|
function update_user_info_about_certificate ($cat_id,$user_id,$path_certificate) {
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
if (!UserManager::is_user_certified($cat_id,$user_id)) {
|
|
$sql='UPDATE '.$table_certificate.' SET path_certificate="'.Database::escape_string($path_certificate).'"
|
|
WHERE cat_id="'.intval($cat_id).'" AND user_id="'.intval($user_id).'" ';
|
|
$rs=Database::query($sql);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* register user info about certificate
|
|
* @param int The category id
|
|
* @param int The user id
|
|
* @param float The score obtained for certified
|
|
* @param Datetime The date when you obtained the certificate
|
|
* @return void()
|
|
*/
|
|
function register_user_info_about_certificate ($cat_id,$user_id,$score_certificate, $date_certificate) {
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
$sql_exist='SELECT COUNT(*) as count FROM '.$table_certificate.' gc
|
|
WHERE gc.cat_id="'.intval($cat_id).'" AND user_id="'.intval($user_id).'" ';
|
|
$rs_exist=Database::query($sql_exist);
|
|
$row=Database::fetch_array($rs_exist);
|
|
if ($row['count']==0) {
|
|
$sql='INSERT INTO '.$table_certificate.' (cat_id,user_id,score_certificate,created_at)
|
|
VALUES("'.intval($cat_id).'","'.intval($user_id).'","'.Database::escape_string($score_certificate).'","'.Database::escape_string($date_certificate).'")';
|
|
$rs=Database::query($sql);
|
|
}
|
|
|
|
}
|
|
/**
|
|
* Get date of user certificate
|
|
* @param int The category id
|
|
* @param int The user id
|
|
* @return Datetime The date when you obtained the certificate
|
|
*/
|
|
function get_certificate_date_by_user_id ($cat_id,$user_id) {
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
$sql_get_date='SELECT created_at FROM '.$table_certificate.' WHERE cat_id="'.intval($cat_id).'" AND user_id="'.intval($user_id).'"';
|
|
$rs_get_date=Database::query($sql_get_date);
|
|
$row_get_date=Database::fetch_array($rs_get_date,'ASSOC');
|
|
return $row_get_date['created_at'];
|
|
}
|
|
|
|
/**
|
|
* Get list of users certificates
|
|
* @param int The category id
|
|
* @return array
|
|
*/
|
|
function get_list_users_certificates ($cat_id=null) {
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
$table_user = Database::get_main_table(TABLE_MAIN_USER);
|
|
$sql='SELECT DISTINCT u.user_id,u.lastname,u.firstname,u.username FROM '.$table_user.' u INNER JOIN '.$table_certificate.' gc
|
|
ON u.user_id=gc.user_id ';
|
|
if (!is_null($cat_id) && $cat_id>0) {
|
|
$sql.=' WHERE cat_id='.Database::escape_string($cat_id);
|
|
}
|
|
$sql.=' ORDER BY u.firstname';
|
|
$rs=Database::query($sql);
|
|
$list_users=array();
|
|
while ($row=Database::fetch_array($rs)) {
|
|
$list_users[]=$row;
|
|
}
|
|
return $list_users;
|
|
}
|
|
|
|
/**
|
|
*Gets the certificate list by user id
|
|
*@param int The user id
|
|
*@param int The category id
|
|
*@retun array
|
|
*/
|
|
function get_list_gradebook_certificates_by_user_id ($user_id,$cat_id=null) {
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
$sql='SELECT gc.score_certificate,gc.created_at,gc.path_certificate,gc.cat_id,gc.user_id FROM '.$table_certificate.' gc
|
|
WHERE gc.user_id="'.Database::escape_string($user_id).'" ';
|
|
if (!is_null($cat_id) && $cat_id>0) {
|
|
$sql.=' AND cat_id='.Database::escape_string($cat_id);
|
|
}
|
|
|
|
$rs = Database::query($sql);
|
|
$list_certificate=array();
|
|
while ($row=Database::fetch_array($rs)) {
|
|
$list_certificate[]=$row;
|
|
}
|
|
return $list_certificate;
|
|
}
|
|
/**
|
|
* Deletes a certificate
|
|
* @param int The category id
|
|
* @param int The user id
|
|
* @return boolean
|
|
*/
|
|
function delete_certificate ($cat_id,$user_id) {
|
|
|
|
$table_certificate = Database::get_main_table(TABLE_MAIN_GRADEBOOK_CERTIFICATE);
|
|
$sql_verified='SELECT count(*) AS count,path_certificate as path,user_id FROM '.$table_certificate.' gc WHERE cat_id="'.Database::escape_string($cat_id).'" AND user_id="'.Database::escape_string($user_id).'" GROUP BY user_id,cat_id';
|
|
$rs_verified=Database::query($sql_verified);
|
|
$path=Database::result($rs_verified,0,'path');
|
|
$user_id=Database::result($rs_verified,0,'user_id');
|
|
if (!is_null($path) || $path!='' || strlen($path)) {
|
|
$path_info= UserManager::get_user_picture_path_by_id($user_id,'system',true);
|
|
$path_directory_user_certificate=$path_info['dir'].'certificate'.$path;
|
|
if (is_file($path_directory_user_certificate)) {
|
|
@unlink($path_directory_user_certificate);
|
|
if (is_file($path_directory_user_certificate)===false) {
|
|
$delete_db=true;
|
|
} else {
|
|
$delete_db=false;
|
|
}
|
|
}
|
|
if (Database::result($rs_verified,0,'count')==1 && $delete_db===true) {
|
|
$sql_delete='DELETE FROM '.$table_certificate.' WHERE cat_id="'.Database::escape_string($cat_id).'" AND user_id="'.Database::escape_string($user_id).'" ';
|
|
$rs_delete=Database::query($sql_delete);
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
} else {
|
|
//path is not generate delete only the DB record
|
|
$sql_delete='DELETE FROM '.$table_certificate.' WHERE cat_id="'.Database::escape_string($cat_id).'" AND user_id="'.Database::escape_string($user_id).'" ';
|
|
$rs_delete=Database::query($sql_delete);
|
|
return true;
|
|
}
|
|
} |