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- <?php
- /*
- ==============================================================================
- Dokeos - elearning and course management software
- Copyright (c) 2004-2008 Dokeos SPRL
- Copyright (c) 2003 Ghent University (UGent)
- Copyright (c) 2001 Universite catholique de Louvain (UCL)
- Copyright (c) various contributors
- For a full list of contributors, see "credits.txt".
- The full license can be read in "license.txt".
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- See the GNU General Public License for more details.
- Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
- Mail: info@dokeos.com
- ==============================================================================
- */
- /**
- ==============================================================================
- * This script displays a list of the users of the current course.
- * Course admins can change user perimssions, subscribe and unsubscribe users...
- *
- * EXPERIMENTAL: support for virtual courses
- * - show users registered in virtual and real courses;
- * - only show the users of a virtual course if the current user;
- * is registered in that virtual course.
- *
- * Exceptions: platform admin and the course admin will see all virtual courses.
- * This is a new feature, there may be bugs.
- *
- * @todo possibility to edit user-course rights and view statistics for users in virtual courses
- * @todo convert normal table display to display function (refactor virtual course display function)
- * @todo display table functions need support for align and valign (e.g. to center text in cells) (this is now possible)
- * @author Roan Embrechts, refactoring + virtual courses support
- * @package dokeos.user
- ==============================================================================
- */
- /*
- ==============================================================================
- INIT SECTION
- ==============================================================================
- */
- // name of the language file that needs to be included
- $language_file = array('registration','admin','userInfo');
- $use_anonymous = true;
- require_once ("../inc/global.inc.php");
- $this_section = SECTION_COURSES;
- // notice for unauthorized people.
- api_protect_course_script(true);
- /*
- -----------------------------------------------------------
- Libraries
- -----------------------------------------------------------
- */
- require_once (api_get_path(LIBRARY_PATH)."debug.lib.inc.php");
- require_once (api_get_path(LIBRARY_PATH)."events.lib.inc.php");
- require_once (api_get_path(LIBRARY_PATH)."export.lib.inc.php");
- require_once (api_get_path(LIBRARY_PATH)."course.lib.php");
- require_once (api_get_path(LIBRARY_PATH).'sortabletable.class.php');
- require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
- require_once (api_get_path(LIBRARY_PATH).'usermanager.lib.php');
- require_once (api_get_path(LIBRARY_PATH).'groupmanager.lib.php');
- //CHECK KEYS
- if( !isset ($_cid))
- {
- header("location: ".$_configuration['root_web']);
- }
- /*
- -----------------------------------------------------------
- Constants and variables
- -----------------------------------------------------------
- */
- $currentCourseID = $_course['sysCode'];
- /*--------------------------------------
- Unregistering a user section
- --------------------------------------
- */
- if(api_is_allowed_to_edit())
- {
- if(isset($_POST['action']))
- {
- switch($_POST['action'])
- {
- case 'unsubscribe' :
- // Make sure we don't unsubscribe current user from the course
- if(is_array($_POST['user'])){
- $user_ids = array_diff($_POST['user'],array($_user['user_id']));
- if(count($user_ids) > 0)
- {
- CourseManager::unsubscribe_user($user_ids, $_SESSION['_course']['sysCode']);
- $message = get_lang('UsersUnsubscribed');
- }
- }
- break;
- }
- }
- }
- if(api_is_allowed_to_edit())
- {
- if( isset ($_GET['action']))
- {
- switch ($_GET['action'])
- {
- case 'export' :
- $table_course_user = Database::get_main_table(TABLE_MAIN_COURSE_USER);
- $session_id=0;
- $table_users = Database :: get_main_table(TABLE_MAIN_USER);
-
- $data=array();
- $a_users=array();
-
- // users subscribed to the course through a session
- if(api_get_setting('use_session_mode')=='true')
- {
- $session_id = intval($_SESSION['id_session']);
- $table_session_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $sql_query = "SELECT DISTINCT user.user_id, user.lastname, user.firstname, user.email, user.official_code
- FROM $table_session_course_user as session_course_user, $table_users as user
- WHERE `course_code` = '$currentCourseID' AND session_course_user.id_user = user.user_id ";
-
- if($session_id!=0)
- {
- $sql_query .= ' AND id_session = '.$session_id;
- }
- $sql_query.=' ORDER BY user.lastname';
- $rs = api_sql_query($sql_query, __FILE__, __LINE__);
- while($user = Database:: fetch_array($rs,'ASSOC'))
- {
- $data[]=$user;
- //$user_infos = Database :: get_user_info_from_id($user['user_id']);
- $a_users[$user['user_id']] = $user;
- }
- }
-
- if($session_id == 0)
- {
- // users directly subscribed to the course
- $table_course_user = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
- $sql_query = "SELECT DISTINCT user.user_id, user.lastname, user.firstname, user.email, user.official_code
- FROM $table_course_user as course_user, $table_users as user WHERE `course_code` = '$currentCourseID' AND course_user.user_id = user.user_id ORDER BY user.lastname";
-
- $rs = api_sql_query($sql_query, __FILE__, __LINE__);
-
- while($user = Database::fetch_array($rs,'ASSOC'))
- {
- $data[]=$user;
- $a_users[$user['user_id']] = $user;
- }
- }
-
-
- switch ($_GET['type'])
- {
- case 'csv' :
- Export::export_table_csv($a_users);
- case 'xls' :
- Export::export_table_xls($a_users);
- }
- }
- }
- } // end if allowed to edit
- if(api_is_allowed_to_edit())
- {
- // Unregister user from course
- if($_GET['unregister'])
- {
- if(isset($_GET['user_id']) && is_numeric($_GET['user_id']) && $_GET['user_id'] != $_user['user_id'])
- {
- CourseManager::unsubscribe_user($_GET['user_id'],$_SESSION['_course']['sysCode']);
- $message = get_lang('UserUnsubscribed');
- }
- }
- } // end if allowed to edit
- /*
- ==============================================================================
- FUNCTIONS
- ==============================================================================
- */
- function display_user_search_form()
- {
- echo '<form method="get" action="user.php">';
- echo get_lang("SearchForUser") . " ";
- echo '<input type="text" name="keyword" value="'.$_GET['keyword'].'"/>';
- echo '<input type="submit" value="'.get_lang('SearchButton').'"/>';
- echo '</form>';
- }
- /**
- * This function displays a list if users for each virtual course linked to the current
- * real course.
- *
- * defines globals
- *
- * @version 1.0
- * @author Roan Embrechts
- * @todo users from virtual courses always show "-" for the group related output. Edit and statistics columns are disabled * for these users, for now.
- */
- function show_users_in_virtual_courses()
- {
- global $_course, $_user, $origin;
- $real_course_code = $_course['sysCode'];
- $real_course_info = Database::get_course_info($real_course_code);
- $user_subscribed_virtual_course_list = CourseManager::get_list_of_virtual_courses_for_specific_user_and_real_course($_user['user_id'], $real_course_code);
- $number_of_virtual_courses = count($user_subscribed_virtual_course_list);
- $row = 0;
- $column_header[$row ++] = "ID";
- $column_header[$row ++] = get_lang("FullUserName");
- $column_header[$row ++] = get_lang("Role");
- $column_header[$row ++] = get_lang("Group");
- if( api_is_allowed_to_edit())
- {
- $column_header[$row ++] = get_lang("Tutor");
- }
- if( api_is_allowed_to_edit())
- {
- $column_header[$row ++] = get_lang("CourseManager");
- }
- //$column_header[$row++] = get_lang("Edit");
- //$column_header[$row++] = get_lang("Unreg");
- //$column_header[$row++] = get_lang("Tracking");
- if( !is_array($user_subscribed_virtual_course_list))
- return;
- foreach ($user_subscribed_virtual_course_list as $virtual_course)
- {
- $virtual_course_code = $virtual_course["code"];
- $virtual_course_user_list = CourseManager::get_user_list_from_course_code($virtual_course_code);
- $message = get_lang("RegisteredInVirtualCourse")." ".$virtual_course["title"]." (".$virtual_course["code"].")";
- echo "<br/>";
- echo "<h4>".$message."</h4>";
- $properties["width"] = "100%";
- $properties["cellspacing"] = "1";
- Display::display_complex_table_header($properties, $column_header);
- foreach ($virtual_course_user_list as $this_user)
- {
- $user_id = $this_user["user_id"];
- $loginname = $this_user["username"];
- $lastname = $this_user["lastname"];
- $firstname = $this_user["firstname"];
- $status = $this_user["status"];
- $role = $this_user["role"];
- if( $status == "1")
- $status = get_lang("CourseManager");
- else
- $status = " - ";
- //if(xxx['tutor'] == '0') $tutor = " - ";
- //else $tutor = get_lang("Tutor");
- $full_name = $lastname.", ".$firstname;
-
- if( $lastname == "" || $firstname == '')
- {
- $full_name = $loginname;
- }
-
- $user_info_hyperlink = "<a href=\"userInfo.php?".api_get_cidreq()."&origin=".$origin."&uInfo=".$user_id."&virtual_course=".$virtual_course["code"]."\">".$full_name."</a>";
- $row = 0;
- $table_row[$row ++] = $user_id;
- $table_row[$row ++] = $user_info_hyperlink; //Full name
- $table_row[$row ++] = $role; //Description
- $table_row[$row ++] = " - "; //Group, for the moment groups don't work for students in virtual courses
- if( api_is_allowed_to_edit())
- {
- $table_row[$row ++] = " - "; //Tutor column
- $table_row[$row ++] = $status; //Course Manager column
- }
- Display::display_table_row(null, $table_row, true);
- }
- Display::display_table_footer();
- }
- }
- if(!$is_allowed_in_course)
- {
- api_not_allowed(true);
- }
- /*
- -----------------------------------------------------------
- Header
- -----------------------------------------------------------
- */
- if( $origin != 'learnpath')
- {
- if (isset($_GET['keyword']))
- {
- $interbreadcrumb[] = array ("url" => "user.php", "name" => get_lang("Users"));
- $tool_name = get_lang('SearchResults');
- }
- else
- {
- $tool_name = get_lang('Users');
- }
- Display::display_header($tool_name, "User");
- }
- else
- {
- ?> <link rel="stylesheet" type="text/css" href="<?php echo api_get_path(WEB_CODE_PATH); ?>css/default.css" /> <?php
- }
- if( isset($message))
- {
- Display::display_normal_message($message);
- }
- /*
- ==============================================================================
- MAIN CODE
- ==============================================================================
- */
- //statistics
- event_access_tool(TOOL_USER);
- /*
- --------------------------------------
- Setting the permissions for this page
- --------------------------------------
- */
- $is_allowed_to_track = ($is_courseAdmin || $is_courseTutor) && $_configuration['tracking_enabled'];
- /*
- /*
- -----------------------------------------------------------
- Introduction section
- (editable by course admins)
- -----------------------------------------------------------
- */
- Display::display_introduction_section(TOOL_USER, $is_allowed);
- if( api_is_allowed_to_edit())
- {
- echo "<div align=\"right\">";
- echo '<a href="user.php?'.api_get_cidreq().'&action=export&type=csv">'.Display::return_icon('excel.gif', get_lang('ExportAsCSV')).' '.get_lang('ExportAsCSV').'</a> | ';
- echo '<a href="subscribe_user.php?'.api_get_cidreq().'">'.Display::return_icon('add_user_big.gif',get_lang("SubscribeUserToCourse")).' '.get_lang("SubscribeUserToCourse").'</a> | ';
- echo "<a href=\"subscribe_user.php?".api_get_cidreq()."&type=teacher\">".Display::return_icon('add_user_big.gif', get_lang("SubscribeUserToCourseAsTeacher"))." ".get_lang("SubscribeUserToCourseAsTeacher")."</a> | ";
- echo "<a href=\"../group/group.php?".api_get_cidreq()."\">".Display::return_icon('edit_group.gif', get_lang("GroupUserManagement"))." ".get_lang("GroupUserManagement")."</a>";
- if(api_get_setting('use_session_mode')=='false')
- {
- echo ' | <a href="class.php?'.api_get_cidreq().'">'.get_lang('Classes').'</a>';
- }
- echo "</div>";
- }
- /*
- --------------------------------------
- DISPLAY USERS LIST
- --------------------------------------
- Also shows a "next page" button if there are
- more than 50 users.
- There's a bug in here somewhere - some users count as more than one if they are in more than one group
- --> code for > 50 users should take this into account
- (Roan, Feb 2004)
- */
- if( CourseManager::has_virtual_courses_from_code($course_id, $user_id))
- {
- $real_course_code = $_course['sysCode'];
- $real_course_info = Database::get_course_info($real_course_code);
- $message = get_lang("RegisteredInRealCourse")." ".$real_course_info["title"]." (".$real_course_info["official_code"].")";
- echo "<h4>".$message."</h4>";
- }
- /*
- ==============================================================================
- DISPLAY LIST OF USERS
- ==============================================================================
- */
- /**
- * * Get the users to display on the current page.
- */
- function get_number_of_users()
- {
- $counter=0;
- if(!empty($_SESSION["id_session"])){
- $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true, $_SESSION['id_session']);
- }
- else{
- $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true);
- }
- foreach($a_course_users as $user_id=>$o_course_user){
- if( (isset ($_GET['keyword']) && search_keyword($o_course_user['firstname'],$o_course_user['lastname'],$o_course_user['username'],$o_course_user['official_code'],$_GET['keyword'])) || !isset($_GET['keyword']) || empty($_GET['keyword'])){
- $counter++;
- }
- }
- return $counter;
-
- }
- function search_keyword($firstname,$lastname,$username,$official_code,$keyword){
- if(strripos($firstname,$keyword)!==false || strripos($lastname,$keyword)!==false || strripos($username,$keyword)!==false || strripos($official_code,$keyword)!==false){
- return true;
- }
- else{
- return false;
- }
- }
- function sort_users($a,$b){
- $a = trim(strtolower($a[$_SESSION['users_column']]));
- $b = trim(strtolower($b[$_SESSION['users_column']]));
- if($_SESSION['users_direction'] == 'DESC')
- return strcmp($b, $a);
- else
- return strcmp($a, $b);
- }
- /**
- * Get the users to display on the current page.
- */
- function get_user_data($from, $number_of_items, $column, $direction)
- {
- $a_users=array();
- if(!empty($_SESSION["id_session"])){
-
- $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true, $_SESSION['id_session']);
- }
- else
- {
- $a_course_users = CourseManager :: get_user_list_from_course_code($_SESSION['_course']['id'], true);
- }
-
- foreach($a_course_users as $user_id=>$o_course_user)
- {
- if( (isset ($_GET['keyword']) && search_keyword($o_course_user['firstname'],$o_course_user['lastname'],$o_course_user['username'],$o_course_user['official_code'],$_GET['keyword'])) || !isset($_GET['keyword']) || empty($_GET['keyword'])){
- $groups_name=GroupManager :: get_user_group_name($user_id);
- if(api_is_allowed_to_edit())
- {
- $temp=array();
- $temp[] = $user_id;
-
- $temp[] = $o_course_user['firstname'];
- $temp[] = $o_course_user['lastname'];
-
- $temp[] = $o_course_user['role'];
- $temp[] = implode(', ',$groups_name); //Group
- $temp[] = $o_course_user['official_code'];
- if(isset($o_course_user['tutor_id']) && $o_course_user['tutor_id']==1)
- $temp[] = get_lang('Tutor');
- else
- $temp[] = '-';
- if(isset($o_course_user['status']) && $o_course_user['status']==1)
- $temp[] = get_lang('CourseManager');
- else
- $temp[] = '-';
- $temp[] = $user_id;
- }
- else
- {
- $temp=array();
- $temp[] = $o_course_user['firstname'];
- $temp[] = $o_course_user['lastname'];
- $temp[] = $o_course_user['role'];
- $temp[] = implode(', ',$groups_name);//Group
- $temp[] = $o_course_user['official_code'];
- $temp[] = $user_id;
- }
- $a_users[$user_id] = $temp;
- }
- }
- usort($a_users, 'sort_users');
-
- return $a_users;
- }
- /**
- * Build the modify-column of the table
- * @param int $user_id The user id
- * @return string Some HTML-code
- */
- function modify_filter($user_id)
- {
- global $origin,$_user, $_course, $is_allowed_to_track,$charset;
- $result="<div style='text-align: center'>";
- // info
- if(!api_is_anonymous())
- {
- $result .= '<a href="userInfo.php?'.api_get_cidreq().'&origin='.$origin.'&uInfo='.$user_id.'" title="'.get_lang('Info').'" ><img border="0" alt="'.get_lang('Info').'" src="../img/user_info.gif" /></a> ';
- }
- if($is_allowed_to_track)
- {
- $result .= '<a href="../mySpace/myStudents.php?'.api_get_cidreq().'&student='.$user_id.'&details=true&course='.$_course['id'].'&origin=user_course" title="'.get_lang('Tracking').'" ><img border="0" alt="'.get_lang('Tracking').'" src="../img/statistics.gif" /></a> ';
- }
- if(api_is_allowed_to_edit())
- {
- // edit
- $result .= '<a href="userInfo.php?'.api_get_cidreq().'&origin='.$origin.'&editMainUserInfo='.$user_id.'" title="'.get_lang('Edit').'" ><img border="0" alt="'.get_lang('Edit').'" src="../img/edit.gif" /></a> ';
- // unregister
- if( $user_id != $_user['user_id'])
- {
- $result .= '<a href="'.api_get_self().'?'.api_get_cidreq().'&unregister=yes&user_id='.$user_id.'" title="'.get_lang('Unreg').' " onclick="javascript:if(!confirm(\''.addslashes(htmlentities(get_lang('ConfirmYourChoice'),ENT_QUOTES,$charset)).'\')) return false;"><img border="0" alt="'.get_lang("Unreg").'" src="../img/delete.gif"/></a>';
- }
- else
- {
- $result .= '<img border="0" alt="'.get_lang("Unreg").'" src="../img/delete_na.gif"/>';
- }
- }
- $result.="</div>";
- return $result;
- }
- $default_column = api_is_allowed_to_edit() ? 2 : 1;
- $table = new SortableTable('users', 'get_number_of_users', 'get_user_data',$default_column);
- $parameters['keyword'] = $_GET['keyword'];
- $table->set_additional_parameters($parameters);
- $header_nr = 0;
- if( api_is_allowed_to_edit())
- {
- $table->set_header($header_nr++, '', false);
- }
- $table->set_header($header_nr++, get_lang('FirstName'));
- $table->set_header($header_nr++, get_lang('LastName'));
- $table->set_header($header_nr++, get_lang('Description'));
- $table->set_header($header_nr++, get_lang('GroupSingle'),false);
- $table->set_header($header_nr++, get_lang('OfficialCode'));
- if( api_is_allowed_to_edit())
- {
- $table->set_header($header_nr++, get_lang('Tutor'));
- $table->set_header($header_nr++, get_lang('CourseManager'));
- }
- //actions column
- $table->set_header($header_nr++, '', false);
- $table->set_column_filter($header_nr-1,'modify_filter');
- if( api_is_allowed_to_edit())
- {
- $table->set_form_actions(array ('unsubscribe' => get_lang('Unreg')), 'user');
- }
- // Build search-form
- $form = new FormValidator('search_user', 'get','','',null,false);
- $renderer = & $form->defaultRenderer();
- $renderer->setElementTemplate('<span>{element}</span> ');
- $form->add_textfield('keyword', '', false);
- $form->addElement('submit', 'submit', get_lang('SearchButton'));
- $form->display();
- echo '<br />';
- $table->display();
- if ( !empty($_GET['keyword']) && !empty($_GET['submit']) )
- {
- $keyword_name=Security::remove_XSS($_GET['keyword']);
- echo '<br/>'.get_lang('SearchResultsFor').' <span style="font-style: italic ;"> '.$keyword_name.' </span><br>';
- }
- if( get_setting('allow_user_headings') == 'true' && $is_courseAdmin && api_is_allowed_to_edit() && $origin != 'learnpath') // only course administrators see this line
- {
- echo "<div align=\"right\">", "<form method=\"post\" action=\"userInfo.php\">", get_lang("CourseAdministratorOnly"), " : ", "<input type=\"submit\" name=\"viewDefList\" value=\"".get_lang("DefineHeadings")."\" />", "</form>", "</div>\n";
- }
- //User list of the virtual courses linked to this course.
- //show_users_in_virtual_courses($is_allowed_to_track);
- /*
- ==============================================================================
- FOOTER
- ==============================================================================
- */
- if( $origin != 'learnpath')
- {
- Display::display_footer();
- }
- ?>
|