/**/
";
// Database table definitions
$TABLETRACK_ACCESS = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
$TABLETRACK_LINKS = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LINKS);
$TABLETRACK_DOWNLOADS = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_DOWNLOADS);
$TABLETRACK_ACCESS_2 = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_ACCESS);
$TABLETRACK_EXERCISES = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
$TABLECOURSUSER = Database::get_main_table(TABLE_MAIN_COURSE_USER);
$TABLECOURSE = Database::get_main_table(TABLE_MAIN_COURSE);
$TABLECOURSE_LINKS = Database::get_course_table(TABLE_LINK);
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$TABLEQUIZ = Database :: get_course_table(TABLE_QUIZ_TEST);
$tbl_learnpath_main = Database::get_course_table(TABLE_LP_MAIN);
$tbl_learnpath_item = Database::get_course_table(TABLE_LP_ITEM);
$tbl_learnpath_view = Database::get_course_table(TABLE_LP_VIEW);
$tbl_learnpath_item_view = Database::get_course_table(TABLE_LP_ITEM_VIEW);
// breadcrumbs
if (isset($_GET['origin']) && $_GET['origin'] == 'resume_session') {
$interbreadcrumb[] = array('url' => '../admin/index.php','name' => get_lang('PlatformAdmin'));
$interbreadcrumb[] = array('url' => '../admin/session_list.php','name' => get_lang('SessionList'));
$interbreadcrumb[] = array('url' => '../admin/resume_session.php?id_session='.$_SESSION['id_session'], 'name' => get_lang('SessionOverview'));
}
$view = (isset($_REQUEST['view']) ? $_REQUEST['view'] : '');
$nameTools = get_lang('Tracking');
// display the header
Display::display_header($nameTools, 'Tracking');
// getting all the students of the course
$a_students = CourseManager :: get_student_list_from_course_code($_course['id'], true, (empty($_SESSION['id_session']) ? null : $_SESSION['id_session']));
$nbStudents = count($a_students);
// gettting all the additional information of an additional profile field
if (isset($_GET['additional_profile_field']) && is_numeric($_GET['additional_profile_field'])) {
//$additional_user_profile_info = get_addtional_profile_information_of_field($_GET['additional_profile_field']);
$user_array = array();
foreach($a_students as $key=>$item){
$user_array[] = $key;
}
//fetching only the user that are loaded NOT ALL user in the portal
$additional_user_profile_info = get_addtional_profile_information_of_field_by_user($_GET['additional_profile_field'],$user_array);
}
function count_item_resources() {
$table_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$sql = "SELECT count(tool) AS total_number_of_items FROM $table_item_property track_resource, $table_user user" .
" WHERE track_resource.insert_user_id = user.user_id";
if (isset($_GET['keyword'])) {
$keyword = Database::escape_string($_GET['keyword']);
$sql .= " AND (user.username LIKE '%".$keyword."%' OR lastedit_type LIKE '%".$keyword."%' OR tool LIKE '%".$keyword."%')";
}
$sql .= " AND tool IN ('document', 'learnpath', 'quiz', 'glossary', 'link', 'course_description')";
$res = Database::query($sql, __FILE__, __LINE__);
$obj = Database::fetch_object($res);
return $obj->total_number_of_items;
}
function get_item_resources_data($from, $number_of_items, $column, $direction) {
global $dateTimeFormatLong;
$table_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
$table_user = Database :: get_main_table(TABLE_MAIN_USER);
$table_session = Database :: get_main_table(TABLE_MAIN_SESSION);
$sql = "SELECT
tool as col0,
lastedit_type as col1,
ref as ref,
user.username as col3,
insert_date as col5,
visibility as col6
FROM $table_item_property track_resource, $table_user user
WHERE track_resource.insert_user_id = user.user_id ";
if (isset($_GET['keyword'])) {
$keyword = Database::escape_string($_GET['keyword']);
$sql .= " AND (user.username LIKE '%".$keyword."%' OR lastedit_type LIKE '%".$keyword."%' OR tool LIKE '%".$keyword."%') ";
}
$sql .= " AND tool IN ('document', 'learnpath', 'quiz', 'glossary', 'link', 'course_description')";
if ($column == 0) { $column = '0'; }
if ($column != '' && $direction != '') {
if ($column != 2 && $column != 4) {
$sql .= " ORDER BY col$column $direction";
}
} else {
$sql .= " ORDER BY col5 DESC ";
}
$sql .= " LIMIT $from, $number_of_items ";
$res = Database::query($sql, __FILE__, __LINE__) or die(mysql_error());
$resources = array ();
while ($row = Database::fetch_array($res)) {
$ref = $row['ref'];
$table_name = get_tool_name_table($row['col0']);
$table_tool = Database :: get_course_table($table_name['table_name']);
$id = $table_name['id_tool'];
$query = "SELECT session.id, session.name, user.username FROM $table_tool tool, $table_session session, $table_user user" .
" WHERE tool.session_id = session.id AND session.id_coach = user.user_id AND tool.$id = $ref";
$recorset = Database::query($query, __FILE__, __LINE__);
if (!empty($recorset)) {
$obj = Database::fetch_object($recorset);
$name_session = '';
$coach_name = '';
if (!empty($obj)) {
$name_session = $obj->name;
$coach_name = $obj->username;
}
$url_tool = api_get_path(WEB_CODE_PATH).$table_name['link_tool'];
$row[0] = '';
if ($row['col6'] != 2) {
$row[0] = ''.api_ucfirst($row['col0']).' ';
} else {
$row[0] = api_ucfirst($row['col0']);
}
$row[1] = get_lang($row[1]);
$row[5] = api_ucfirst(format_locale_date($dateTimeFormatLong, strtotime($row['col5'])));
$row[4] = '';
if ($table_name['table_name'] == 'document') {
$condition = 'tool.title as title';
$query_document = "SELECT $condition FROM $table_tool tool" .
" WHERE id = $ref";
$rs_document = Database::query($query_document, __FILE__, __LINE__) or die(mysql_error());
$obj_document = Database::fetch_object($rs_document);
$row[4] = $obj_document->title;
}
$row2 = $name_session;
if (!empty($coach_name)) {
$row2 .= '
'.Display::return_icon('scormbuilder.gif',get_lang('AverageProgressInLearnpath')).get_lang('AverageProgressInLearnpath').'
';
$list = new LearnpathList($student);
$flat_list = $list->get_flat_list();
if ($export_csv) {
$temp = array(get_lang('AverageProgressInLearnpath', ''), '');
$csv_content[] = array('', '');
$csv_content[] = $temp;
}
if (count($flat_list) > 0) {
foreach ($flat_list as $lp_id => $lp) {
$lp_avg_progress = 0;
foreach ($a_students as $student_id => $student) {
// get the progress in learning pathes
$lp_avg_progress += learnpath::get_db_progress($lp_id, $student_id);
}
if ($nbStudents > 0) {
$lp_avg_progress = $lp_avg_progress / $nbStudents;
} else {
$lp_avg_progress = null;
}
// Separated presentation logic.
if (is_null($lp_avg_progress)) {
$lp_avg_progress = '0%';
} else {
$lp_avg_progress = round($lp_avg_progress, 1).'%';
}
echo ''.$lp['lp_name'].' '.$lp_avg_progress.' '.get_lang('NoLearningPath').'
';
echo '
';
// Exercices tracking
echo '
'.Display::return_icon('quiz.gif',get_lang('AverageResultsToTheExercices')).get_lang('AverageResultsToTheExercices').' - '.get_lang('SeeDetail').'
';
$sql = "SELECT id, title
FROM $TABLEQUIZ WHERE active <> -1";
$rs = Database::query($sql, __FILE__, __LINE__);
if ($export_csv) {
$temp = array(get_lang('AverageProgressInLearnpath'), '');
$csv_content[] = array('', '');
$csv_content[] = $temp;
}
if (Database::num_rows($rs) > 0) {
// gets course actual administrators
$sql = "SELECT user.user_id FROM $table_user user, $TABLECOURSUSER course_user
WHERE course_user.user_id=user.user_id AND course_user.course_code='".api_get_course_id()."' AND course_user.status <> '1' ";
$res = Database::query($sql, __FILE__, __LINE__);
$student_ids = array();
while($row = Database::fetch_row($res)) {
$student_ids[] = $row[0];
}
$count_students = count($student_ids);
while ($quiz = Database::fetch_array($rs)) {
$quiz_avg_score = 0;
if ($count_students > 0) {
foreach ($student_ids as $student_id) {
// get the scorn in exercises
$sql = 'SELECT exe_result , exe_weighting
FROM '.$TABLETRACK_EXERCISES.'
WHERE exe_exo_id = '.$quiz['id'].'
AND exe_user_id = '.(int)$student_id.'
AND exe_cours_id = "'.api_get_course_id().'"
AND orig_lp_id = 0
AND orig_lp_item_id = 0
ORDER BY exe_date DESC';
$rsAttempt = Database::query($sql, __FILE__, __LINE__);
$nb_attempts = 0;
$avg_student_score = 0;
while ($attempt = Database::fetch_array($rsAttempt)) {
$nb_attempts++;
$exe_weight = $attempt['exe_weighting'];
if ($exe_weight > 0) {
$avg_student_score += round(($attempt['exe_result'] / $exe_weight * 100), 2);
}
}
if ($nb_attempts > 0) {
$avg_student_score = $avg_student_score / $nb_attempts;
}
$quiz_avg_score += $avg_student_score;
}
}
$count_students = ($count_students == 0 || is_null($count_students) || $count_students == '') ? 1 : $count_students;
echo ''.$quiz['title'].' '.round(($quiz_avg_score / $count_students), 2).'%'.' '.get_lang('NoExercises').'
';
echo '
';
// forums tracking
echo '
'.Display::return_icon('forum.gif', get_lang('Forum')).get_lang('Forum').' - '.get_lang('SeeDetail').'
';
$count_number_of_posts_by_course = Tracking :: count_number_of_posts_by_course($_course['id']);
$count_number_of_forums_by_course = Tracking :: count_number_of_forums_by_course($_course['id']);
$count_number_of_threads_by_course = Tracking :: count_number_of_threads_by_course($_course['id']);
if ($export_csv) {
$csv_content[] = array(get_lang('Forum'), '');
$csv_content[] = array(get_lang('ForumForumsNumber', ''), $count_number_of_forums_by_course);
$csv_content[] = array(get_lang('ForumThreadsNumber', ''), $count_number_of_threads_by_course);
$csv_content[] = array(get_lang('ForumPostsNumber', ''), $count_number_of_posts_by_course);
}
echo ''.get_lang('ForumForumsNumber').' '.$count_number_of_forums_by_course.' '.get_lang('ForumThreadsNumber').' '.$count_number_of_threads_by_course.' '.get_lang('ForumPostsNumber').' '.$count_number_of_posts_by_course.'
';
echo '
';
// chat tracking
echo '
'.Display::return_icon('chat.gif',get_lang('Chat')).get_lang('Chat').'
';
$chat_connections_during_last_x_days_by_course = Tracking :: chat_connections_during_last_x_days_by_course($_course['id'], 7);
if ($export_csv) {
$csv_content[] = array(get_lang('Chat', ''), '');
$csv_content[] = array(sprintf(get_lang('ChatConnectionsDuringLastXDays', ''), '7'), $chat_connections_during_last_x_days_by_course);
}
echo ''.sprintf(get_lang('ChatConnectionsDuringLastXDays'), '7').' '.$chat_connections_during_last_x_days_by_course.'
';
echo '
';
// tools tracking
echo '
'.Display::return_icon('acces_tool.gif', get_lang('ToolsMostUsed')).get_lang('ToolsMostUsed').'
';
$sql = "SELECT access_tool, COUNT(DISTINCT access_user_id),count( access_tool ) as count_access_tool
FROM $TABLETRACK_ACCESS
WHERE access_tool IS NOT NULL
AND access_cours_code = '$_cid'
GROUP BY access_tool
ORDER BY count_access_tool DESC
LIMIT 0, 3";
$rs = Database::query($sql, __FILE__, __LINE__);
if ($export_csv) {
$temp = array(get_lang('ToolsMostUsed'), '');
$csv_content[] = $temp;
}
while ($row = Database::fetch_array($rs)) {
echo '
'.get_lang(ucfirst($row['access_tool'])).'
'.$row['count_access_tool'].' '.get_lang('Clicks').'
';
if ($export_csv) {
$temp = array(get_lang(ucfirst($row['access_tool']), ''), $row['count_access_tool'].' '.get_lang('Clicks', ''));
$csv_content[] = $temp;
}
}
echo '
';
echo '
';
// Documents tracking
if ($_GET['num'] == 0 or empty($_GET['num'])) {
$num = 3;
$link=' - '.get_lang('SeeDetail').' ';
} else {
$num = 1000;
$link=' - '.get_lang('ViewMinus').' ';
}
echo '
'.Display::return_icon('documents.gif',get_lang('DocumentsMostDownloaded')).' '.get_lang('DocumentsMostDownloaded').$link.'
';
$sql = "SELECT down_doc_path, COUNT(DISTINCT down_user_id), COUNT(down_doc_path) as count_down
FROM $TABLETRACK_DOWNLOADS
WHERE down_cours_id = '$_cid'
GROUP BY down_doc_path
ORDER BY count_down DESC
LIMIT 0, $num";
$rs = Database::query($sql, __FILE__, __LINE__);
if ($export_csv) {
$temp = array(get_lang('DocumentsMostDownloaded', ''), '');
$csv_content[] = array('', '');
$csv_content[] = $temp;
}
if (Database::num_rows($rs) > 0) {
while($row = Database::fetch_array($rs)) {
echo '
'.$row['down_doc_path'].'
'.$row['count_down'].' '.get_lang('Clicks').'
';
if ($export_csv) {
$temp = array($row['down_doc_path'], $row['count_down'].' '.get_lang('Clicks', ''));
$csv_content[] = $temp;
}
}
} else {
echo ''.get_lang('NoDocumentDownloaded').'
';
echo '
';
// links tracking
echo '
'.Display::return_icon('link.gif',get_lang('LinksMostClicked')).' '.get_lang('LinksMostClicked').'
';
$sql = "SELECT cl.title, cl.url,count(DISTINCT sl.links_user_id), count(cl.title) as count_visits
FROM $TABLETRACK_LINKS AS sl, $TABLECOURSE_LINKS AS cl
WHERE sl.links_link_id = cl.id
AND sl.links_cours_id = '$_cid'
GROUP BY cl.title, cl.url
ORDER BY count_visits DESC
LIMIT 0, 3";
$rs = Database::query($sql, __FILE__, __LINE__);
if ($export_csv) {
$temp = array(get_lang('LinksMostClicked'),'');
$csv_content[] = array('','');
$csv_content[] = $temp;
}
if (Database::num_rows($rs) > 0) {
while ($row = Database::fetch_array($rs)) {
echo '
'.$row['title'].'
'.$row['count_visits'].' '.get_lang('Clicks').'
';
if ($export_csv){
$temp = array($row['title'],$row['count_visits'].' '.get_lang('Clicks', ''));
$csv_content[] = $temp;
}
}
} else {
echo ''.get_lang('NoLinkVisited').'
';
echo '
';
// send the csv file if asked
if ($export_csv) {
ob_end_clean();
Export :: export_table_csv($csv_content, 'reporting_course_tracking');
}
} elseif ($_GET['studentlist'] == 'true' or $_GET['studentlist'] == '') {
// else display student list with all the informations
// BEGIN : form to remind inactives susers
$form = new FormValidator('reminder_form', 'get', api_get_path(REL_CODE_PATH).'announcements/announcements.php');
$renderer = $form->defaultRenderer();
$renderer->setElementTemplate('{label} {element} '.get_lang('SendNotification').' ','since');
$options = array (
2 => '2 '.get_lang('Days'),
3 => '3 '.get_lang('Days'),
4 => '4 '.get_lang('Days'),
5 => '5 '.get_lang('Days'),
6 => '6 '.get_lang('Days'),
7 => '7 '.get_lang('Days'),
15 => '15 '.get_lang('Days'),
30 => '30 '.get_lang('Days'),
'never' => get_lang('Never')
);
$el = $form -> addElement('select', 'since', '{element} ');
$form->addElement('hidden','studentlist','resources');
$form->addElement('text','keyword',get_lang('keyword'));
$form->addElement('style_submit_button', 'submit', get_lang('Search'),'class="search"');
echo '';
$form->display();
echo '
';
$table = new SortableTable('resources', 'count_item_resources', 'get_item_resources_data', 5, 20, 'DESC');
$parameters = array();
if (isset($_GET['keyword'])) {
$parameters['keyword'] = Security::remove_XSS($_GET['keyword']);
}
$parameters['studentlist'] = 'resources';
$table->set_additional_parameters($parameters);
$table->set_header(0, get_lang('Tool'));
$table->set_header(1, get_lang('EventType'));
$table->set_header(2, get_lang('Session'), false);
$table->set_header(3, get_lang('UserName'));
$table->set_header(4, get_lang('Document'), false);
$table->set_header(5, get_lang('Date'));
$table->display();
}
?>
, Ghent University, Belgium
* @since October 2009
* @version 1.8.7
*/
function display_additional_profile_fields() {
// getting all the extra profile fields that are defined by the platform administrator
$extra_fields = UserManager :: get_extra_fields(0,50,5,'ASC');
// creating the form
$return = '';
return $return;
}
/**
* This function gets all the information of a certrain ($field_id) additional profile field.
* It gets the information of all the users so that it can be displayed in the sortable table or in the csv or xls export
*
* @author Patrick Cool , Ghent University, Belgium
* @since October 2009
* @version 1.8.7
*/
function get_addtional_profile_information_of_field($field_id){
// Database table definition
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$table_user_field_values = Database::get_main_table(TABLE_MAIN_USER_FIELD_VALUES);
$sql = "SELECT user.user_id, field.field_value FROM $table_user user, $table_user_field_values field
WHERE user.user_id = field.user_id
AND field.field_id='".intval($field_id)."'";
$result = api_sql_query($sql,__FILE__,__LINE__);
while($row = Database::fetch_array($result))
{
$return[$row['user_id']][] = $row['field_value'];
}
return $return;
}
/**
* This function gets all the information of a certrain ($field_id) additional profile field for a specific list of users is more efficent than get_addtional_profile_information_of_field() function
* It gets the information of all the users so that it can be displayed in the sortable table or in the csv or xls export
*
* @author Julio Montoya
* @param int field id
* @param array list of user ids
* @return array
* @since Nov 2009
* @version 1.8.6.2
*/
function get_addtional_profile_information_of_field_by_user($field_id, $users){
// Database table definition
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$table_user_field_values = Database::get_main_table(TABLE_MAIN_USER_FIELD_VALUES);
$result = UserManager::get_extra_field_information($field_id);
if (!empty($users)) {
if ($result['field_type'] == USER_FIELD_TYPE_TAG ) {
foreach($users as $user_id) {
$user_result = UserManager::get_user_tags($user_id, $field_id);
$tag_list = array();
foreach($user_result as $item) {
$tag_list[] = $item['tag'];
}
$return[$user_id][] = implode(', ',$tag_list);
}
} else {
$new_user_array = array();
foreach($users as $user_id) {
$new_user_array[]= "'".$user_id."'";
}
$users = implode(',',$new_user_array);
//selecting only the necessary information NOT ALL the user list
$sql = "SELECT user.user_id, field.field_value FROM $table_user user INNER JOIN $table_user_field_values field
ON (user.user_id = field.user_id)
WHERE field.field_id=".intval($field_id)." AND user.user_id IN ($users)";
$result = api_sql_query($sql,__FILE__,__LINE__);
while($row = Database::fetch_array($result)) {
$return[$row['user_id']][] = $row['field_value'];
}
}
}
return $return;
}
/**
* count the number of students in this course (used for SortableTable)
*/
function count_student_in_course() {
global $nbStudents;
return $nbStudents;
}
function sort_users($a, $b) {
return api_strcmp(trim(api_strtolower($a[$_SESSION['tracking_column']])), trim(api_strtolower($b[$_SESSION['tracking_column']])));
}
'.get_lang('ExportAsCSV').'';
} elseif ($_GET['studentlist'] == '' || $_GET['studentlist'] == 'true') {
$addional_param = '';
if (isset($_GET['additional_profile_field'])) {
$addional_param ='additional_profile_field='.intval($_GET['additional_profile_field']);
}
echo ''.Display::return_icon('csv.gif',get_lang('ExportAsCSV')).get_lang('ExportAsCSV').'';
}
if($_GET['studentlist'] == 'true' || empty($_GET['studentlist'])) {
echo display_additional_profile_fields();
}
echo '.'messagebox_warning.gif){kind=small}
'.get_lang('RemindInactivesLearnersSince'), $options);
$el -> setSelected(7);
$form -> addElement('hidden', 'action', 'add');
$form -> addElement('hidden', 'remindallinactives', 'true');
$form -> display();
// END : form to remind inactives susers
if ($export_csv) {
$is_western_name_order = api_is_western_name_order(PERSON_NAME_DATA_EXPORT);
} else {
$is_western_name_order = api_is_western_name_order();
}
$sort_by_first_name = api_sort_by_first_name();
$tracking_column = isset($_GET['tracking_column']) ? $_GET['tracking_column'] : 0;
$tracking_direction = isset($_GET['tracking_direction']) ? $_GET['tracking_direction'] : 'DESC';
if (count($a_students) > 0) {
$table = new SortableTable('tracking', 'count_student_in_course', null, ($is_western_name_order xor $sort_by_first_name) ? 2 : 1);
$table -> set_header(0, get_lang('OfficialCode'), false, 'align="center"');
if ($is_western_name_order) {
$table -> set_header(1, get_lang('FirstName'), false, 'align="center"');
$table -> set_header(2, get_lang('LastName'), true, 'align="center"');
} else {
$table -> set_header(1, get_lang('LastName'), true, 'align="center"');
$table -> set_header(2, get_lang('FirstName'), false, 'align="center"');
}
$table -> set_header(3, get_lang('TrainingTime'),false);
$table -> set_header(4, get_lang('CourseProgress'),false);
$table -> set_header(5, get_lang('Score'),false);
$table -> set_header(6, get_lang('Student_publication'),false);
$table -> set_header(7, get_lang('Messages'),false);
$table -> set_header(8, get_lang('FirstLogin'), false, 'align="center"');
$table -> set_header(9, get_lang('LatestLogin'), false, 'align="center"');
$table -> set_header(10, get_lang('Details'),false);
if (isset($_GET['additional_profile_field']) AND is_numeric($_GET['additional_profile_field'])) {
$table -> set_header(11, get_lang('AdditionalProfileField'),false);
}
if ($export_csv) {
$csv_content[] = array ();
}
$all_datas = array();
$course_code = $_course['id'];
foreach ($a_students as $student_id => $student) {
$student_datas = UserManager :: get_user_info_by_id($student_id);
$avg_time_spent = $avg_student_score = $avg_student_progress = $total_assignments = $total_messages = 0;
$nb_courses_student = 0;
$avg_time_spent = Tracking :: get_time_spent_on_the_course($student_id, $course_code);
$avg_student_score = Tracking :: get_average_test_scorm_and_lp($student_id, $course_code);
$avg_student_progress = Tracking :: get_avg_student_progress($student_id, $course_code);
$total_assignments = Tracking :: count_student_assignments($student_id, $course_code);
$total_messages = Tracking :: count_student_messages($student_id, $course_code);
$row = array();
$row[] = $student_datas['official_code'];
if ($is_western_name_order) {
$row[] = $student_datas['firstname'];
$row[] = $student_datas['lastname'];
} else {
$row[] = $student_datas['lastname'];
$row[] = $student_datas['firstname'];
}
$row[] = api_time_to_hms($avg_time_spent);
if (is_null($avg_student_score)) {$avg_student_score=0;}
if (is_null($avg_student_progress)) {$avg_student_progress=0;}
$row[] = $avg_student_progress.'%';
$row[] = $avg_student_score.'%';
$row[] = $total_assignments;
$row[] = $total_messages;
$row[] = Tracking :: get_first_connection_date_on_the_course($student_id, $course_code);
$row[] = Tracking :: get_last_connection_date_on_the_course($student_id, $course_code);
$row[] = '.'2rightarrow.gif)