= pow(2, 10) && $size < pow(2, 20)) {
return round($size / pow(2, 10), 0)." KB";
}
if ($size >= pow(2, 20) && $size < pow(2, 30)) {
return round($size / pow(2, 20), 1)." MB";
}
if ($size > pow(2, 30)) {
return round($size / pow(2, 30), 2)." GB";
}
}
/**
* Count courses
* @param string $category_code Code of a course category. Default: count
* all courses.
* @return int Number of courses counted
*/
static function count_courses($category_code = null)
{
$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$access_url_rel_course_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$sql = "SELECT COUNT(*) AS number FROM ".$course_table." as c, ".$access_url_rel_course_table." as u
WHERE u.c_id = c.id AND access_url_id='".$current_url_id."'";
if (isset ($category_code)) {
$sql .= " AND category_code = '".Database::escape_string($category_code)."'";
}
} else {
$sql = "SELECT COUNT(*) AS number FROM ".$course_table." ";
if (isset ($category_code)) {
$sql .= " WHERE category_code = '".Database::escape_string($category_code)."'";
}
}
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->number;
}
/**
* Count courses by visibility
* @param int Visibility (0 = closed, 1 = private, 2 = open, 3 = public)
* all courses.
* @return int Number of courses counted
*/
static function count_courses_by_visibility($vis = null)
{
if (!isset($vis)) {
return 0;
}
$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$access_url_rel_course_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$sql = "SELECT COUNT(*) AS number
FROM ".$course_table." as c, ".$access_url_rel_course_table." as u
WHERE u.c_id = c.id AND access_url_id='".$current_url_id."'";
if (isset ($vis)) {
$sql .= " AND visibility = ".intval($vis);
}
} else {
$sql = "SELECT COUNT(*) AS number FROM ".$course_table." ";
if (isset ($vis)) {
$sql .= " WHERE visibility = ".intval($vis);
}
}
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->number;
}
/**
* Count users
* @param int optional, user status (COURSEMANAGER or STUDENT), if it's not setted it'll count all users.
* @param string optional, code of a course category. Default: count only users without filtering category
* @param bool count invisible courses (todo)
* @param bool count only active users (false to only return currently active users)
* @return int Number of users counted
*/
static function count_users(
$status = null,
$category_code = null,
$count_invisible_courses = true,
$only_active = false
) {
// Database table definitions
$course_user_table = Database :: get_main_table(TABLE_MAIN_COURSE_USER);
$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$user_table = Database :: get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
$active_filter = $only_active ? ' AND active=1' : '';
$status_filter = isset($status) ? ' AND status = '.intval($status) : '';
if (api_is_multiple_url_enabled()) {
$sql = "SELECT COUNT(DISTINCT(u.user_id)) AS number
FROM $user_table as u, $access_url_rel_user_table as url
WHERE u.user_id=url.user_id AND access_url_id='".$current_url_id."' $status_filter $active_filter";
if (isset ($category_code)) {
$sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number
FROM $course_user_table cu, $course_table c, $access_url_rel_user_table as url
WHERE c.id = cu.c_id AND
c.category_code = '".Database::escape_string($category_code)."' AND
cu.user_id=url.user_id AND
access_url_id='".$current_url_id."' $status_filter $active_filter";
}
} else {
$sql = "SELECT COUNT(DISTINCT(user_id)) AS number FROM $user_table WHERE 1=1 $status_filter $active_filter";
if (isset ($category_code)) {
$status_filter = isset($status) ? ' AND status = '.intval($status) : '';
$sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number
FROM $course_user_table cu, $course_table c
WHERE c.id = cu.c_id AND c.category_code = '".Database::escape_string(
$category_code
)."' $status_filter $active_filter";
}
}
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->number;
}
/**
* Count activities from track_e_default_table
* @return int Number of activities counted
*/
static function get_number_of_activities()
{
$track_e_default = Database :: get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$sql = "SELECT count(default_id) AS total_number_of_items FROM $track_e_default, $table_user user, $access_url_rel_user_table url WHERE default_user_id = user.user_id AND user.user_id=url.user_id AND access_url_id='".$current_url_id."'";
} else {
$sql = "SELECT count(default_id) AS total_number_of_items FROM $track_e_default, $table_user user WHERE default_user_id = user.user_id ";
}
if (isset($_GET['keyword'])) {
$keyword = Database::escape_string(trim($_GET['keyword']));
$sql .= " AND (user.username LIKE '%".$keyword."%' OR default_event_type LIKE '%".$keyword."%' OR default_value_type LIKE '%".$keyword."%' OR default_value LIKE '%".$keyword."%') ";
}
$res = Database::query($sql);
$obj = Database::fetch_object($res);
return $obj->total_number_of_items;
}
/**
* Get activities data to display
*/
static function get_activities_data($from, $number_of_items, $column, $direction)
{
global $dateTimeFormatLong;
$track_e_default = Database::get_main_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
$column = intval($column);
$from = intval($from);
$number_of_items = intval($number_of_items);
if (!in_array($direction, array('ASC', 'DESC'))) {
$direction = 'DESC';
}
if (api_is_multiple_url_enabled()) {
$sql = "SELECT ".
"default_event_type as col0, ".
"default_value_type as col1, ".
"default_value as col2, ".
"user.username as col3, ".
"user.user_id as col4, ".
"default_date as col5 ".
"FROM $track_e_default as track_default, $table_user as user, $access_url_rel_user_table as url ".
"WHERE track_default.default_user_id = user.user_id AND url.user_id=user.user_id AND access_url_id='".$current_url_id."'";
} else {
$sql = "SELECT ".
"default_event_type as col0, ".
"default_value_type as col1, ".
"default_value as col2, ".
"user.username as col3, ".
"user.user_id as col4, ".
"default_date as col5 ".
"FROM $track_e_default track_default, $table_user user ".
"WHERE track_default.default_user_id = user.user_id ";
}
if (isset($_GET['keyword'])) {
$keyword = Database::escape_string(trim($_GET['keyword']));
$sql .= " AND (user.username LIKE '%".$keyword."%' OR default_event_type LIKE '%".$keyword."%' OR default_value_type LIKE '%".$keyword."%' OR default_value LIKE '%".$keyword."%') ";
}
if (!empty($column) && !empty($direction)) {
$sql .= " ORDER BY col$column $direction";
} else {
$sql .= " ORDER BY col5 DESC ";
}
$sql .= " LIMIT $from, $number_of_items ";
$res = Database::query($sql);
$activities = array();
while ($row = Database::fetch_row($res)) {
if (strpos($row[1], '_object') === false) {
$row[2] = $row[2];
} else {
if (!empty($row[2])) {
$row[2] = unserialize($row[2]);
if (is_array($row[2]) && !empty($row[2])) {
$row[2] = Text::implode_with_key(', ', $row[2]);
}
}
}
if (!empty($row['default_date']) && $row['default_date'] != '0000-00-00 00:00:00') {
$row['default_date'] = api_get_local_time($row['default_date']);
} else {
$row['default_date'] = '-';
}
if (!empty($row[4])) { //user ID
$row[3] = Display::url(
$row[3],
api_get_path(WEB_CODE_PATH).'admin/user_information?user_id='.$row[5],
array('title' => get_lang('UserInfo'))
);
$row[4] = TrackingUserLog::get_ip_from_user_event($row[4], $row[5], true);
if (empty($row[4])) {
$row[4] = get_lang('Unknown');
}
}
$activities[] = $row;
}
return $activities;
}
/**
* Get all course categories
* @return array All course categories (code => name)
*/
static function get_course_categories()
{
$category_table = Database :: get_main_table(TABLE_MAIN_CATEGORY);
$sql = "SELECT code, name FROM $category_table ORDER BY tree_pos";
$res = Database::query($sql);
$categories = array();
while ($category = Database::fetch_object($res)) {
$categories[$category->code] = $category->name;
}
return $categories;
}
/**
* Rescale data
* @param array $data The data that should be rescaled
* @param int $max The maximum value in the rescaled data (default = 500);
* @return array The rescaled data, same key as $data
*/
static function rescale($data, $max = 500)
{
$data_max = 1;
foreach ($data as $index => $value) {
$data_max = ($data_max < $value ? $value : $data_max);
}
reset($data);
$result = array();
$delta = $max / $data_max;
foreach ($data as $index => $value) {
$result[$index] = (int)round($value * $delta);
}
return $result;
}
/**
* Show statistics
* @param string $title The title
* @param array $stats
* @param bool $show_total
* @param bool $is_file_size
*/
static function print_stats($title, $stats, $show_total = true, $is_file_size = false)
{
$total = 0;
$data = Statistics::rescale($stats);
echo '
| '.$title.' |
|---|
';
$i = 0;
foreach ($stats as $subtitle => $number) {
$total += $number;
}
foreach ($stats as $subtitle => $number) {
if (!$is_file_size) {
$number_label = number_format($number, 0, ',', '.');
} else {
$number_label = Statistics::make_size_string($number);
}
$percentage = ($total > 0 ? number_format(100 * $number / $total, 1, ',', '.') : '0');
echo '
| '.$subtitle.' |
'.Display::bar_progress($percentage, false).' |
'.$number_label.' | ';
if ($show_total) {
echo ' '.$percentage.'% | ';
}
echo '
';
$i++;
}
if ($show_total) {
if (!$is_file_size) {
$total_label = number_format($total, 0, ',', '.');
} else {
$total_label = Statistics::make_size_string($total);
}
echo '| '.get_lang('Total').': '.$total_label.' |
|---|
';
}
echo '
';
}
/**
* Show some stats about the number of logins
* @param string $type month, hour or day
*/
static function print_login_stats($type)
{
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$table_url = ", $access_url_rel_user_table";
$where_url = " WHERE login_user_id=user_id AND access_url_id='".$current_url_id."'";
$where_url_last = ' AND login_date > DATE_SUB(NOW(),INTERVAL 1 %s)';
} else {
$table_url = '';
$where_url = '';
$where_url_last = ' WHERE login_date > DATE_SUB(NOW(),INTERVAL 1 %s)';
}
switch ($type) {
case 'month':
$months = api_get_months_long();
$period = get_lang('PeriodMonth');
$sql = "SELECT DATE_FORMAT( login_date, '%Y-%m' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url." GROUP BY stat_date ORDER BY login_date ";
$sql_last_x = "SELECT DATE_FORMAT( login_date, '%Y-%m' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url.sprintf(
$where_url_last,
'YEAR'
)." GROUP BY stat_date ORDER BY login_date ";
break;
case 'hour':
$period = get_lang('PeriodHour');
$sql = "SELECT DATE_FORMAT( login_date, '%H' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url." GROUP BY stat_date ORDER BY stat_date ";
$sql_last_x = "SELECT DATE_FORMAT( login_date, '%H' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url.sprintf(
$where_url_last,
'DAY'
)." GROUP BY stat_date ORDER BY stat_date ";
break;
case 'day':
$week_days = api_get_week_days_long();
$period = get_lang('PeriodDay');
$sql = "SELECT DATE_FORMAT( login_date, '%w' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url." GROUP BY stat_date ORDER BY DATE_FORMAT( login_date, '%w' ) ";
$sql_last_x = "SELECT DATE_FORMAT( login_date, '%w' ) AS stat_date , count( login_id ) AS number_of_logins FROM ".$table.$table_url.$where_url.sprintf(
$where_url_last,
'WEEK'
)." GROUP BY stat_date ORDER BY DATE_FORMAT( login_date, '%w' ) ";
break;
}
$res_last_x = Database::query($sql_last_x);
$result_last_x = array();
while ($obj = Database::fetch_object($res_last_x)) {
$stat_date = $obj->stat_date;
switch ($type) {
case 'month':
$stat_date = explode('-', $stat_date);
$stat_date[1] = $months[$stat_date[1] - 1];
$stat_date = implode(' ', $stat_date);
break;
case 'day':
$stat_date = $week_days[$stat_date];
break;
}
$result_last_x[$stat_date] = $obj->number_of_logins;
}
Statistics::print_stats(get_lang('LastLogins').' ('.$period.')', $result_last_x, true);
flush(); //flush web request at this point to see something already while the full data set is loading
echo '
';
$res = Database::query($sql);
$result = array();
while ($obj = Database::fetch_object($res)) {
$stat_date = $obj->stat_date;
switch ($type) {
case 'month':
$stat_date = explode('-', $stat_date);
$stat_date[1] = $months[$stat_date[1] - 1];
$stat_date = implode(' ', $stat_date);
break;
case 'day':
$stat_date = $week_days[$stat_date];
break;
}
$result[$stat_date] = $obj->number_of_logins;
}
Statistics::print_stats(get_lang('AllLogins').' ('.$period.')', $result, true);
}
/**
* Print the number of recent logins
*/
static function print_recent_login_stats()
{
$total_logins = array();
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$table_url = ", $access_url_rel_user_table";
$where_url = " AND login_user_id=user_id AND access_url_id='".$current_url_id."'";
} else {
$table_url = '';
$where_url = '';
}
$sql[get_lang(
'Thisday'
)] = "SELECT count(login_user_id) AS number FROM $table $table_url WHERE DATE_ADD(login_date, INTERVAL 1 DAY) >= NOW() $where_url";
$sql[get_lang(
'Last7days'
)] = "SELECT count(login_user_id) AS number FROM $table $table_url WHERE DATE_ADD(login_date, INTERVAL 7 DAY) >= NOW() $where_url";
$sql[get_lang(
'Last31days'
)] = "SELECT count(login_user_id) AS number FROM $table $table_url WHERE DATE_ADD(login_date, INTERVAL 31 DAY) >= NOW() $where_url";
$sql[get_lang(
'Total'
)] = "SELECT count(login_user_id) AS number FROM $table $table_url WHERE 1=1 $where_url";
foreach ($sql as $index => $query) {
$res = Database::query($query);
$obj = Database::fetch_object($res);
$total_logins[$index] = $obj->number;
}
Statistics::print_stats(get_lang('Logins'), $total_logins, false);
}
/**
* Show some stats about the accesses to the different course tools
*/
static function print_tool_stats()
{
$tableCourse = Database::get_main_table(TABLE_MAIN_COURSE);
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_ACCESS);
$access_url_rel_course_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
$tools = array(
'announcement',
'assignment',
'calendar_event',
'chat',
'conference',
'course_description',
'document',
'dropbox',
'group',
'learnpath',
'link',
'quiz',
'student_publication',
'user',
'forum'
);
$tool_names = array();
foreach ($tools as $tool) {
$tool_names[$tool] = get_lang(ucfirst($tool), '');
}
if (api_is_multiple_url_enabled()) {
$sql = "SELECT access_tool, count( access_id ) AS number_of_logins
FROM $table, $access_url_rel_course_table u, $tableCourse c
WHERE access_tool IN ('".implode(
"','",
$tools
)."') AND c.id = u.c_id AND c.id = c_id AND access_url_id='".$current_url_id."' ".
"GROUP BY access_tool ";
} else {
$sql = "SELECT access_tool, count( access_id ) AS number_of_logins FROM $table ".
"WHERE access_tool IN ('".implode("','", $tools)."') ".
"GROUP BY access_tool ";
}
$res = Database::query($sql);
$result = array();
while ($obj = Database::fetch_object($res)) {
$result[$tool_names[$obj->access_tool]] = $obj->number_of_logins;
}
Statistics::print_stats(get_lang('PlatformToolAccess'), $result, true);
}
/**
* Show some stats about the number of courses per language
*/
static function print_course_by_language_stats()
{
$table = Database :: get_main_table(TABLE_MAIN_COURSE);
$access_url_rel_course_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$sql = "SELECT course_language, count( c.code ) AS number_of_courses ".
"FROM $table as c, $access_url_rel_course_table as u
WHERE u.c_id = c.id AND access_url_id='".$current_url_id."'
GROUP BY course_language ORDER BY number_of_courses DESC";
} else {
$sql = "SELECT course_language, count(code) AS number_of_courses ".
"FROM $table GROUP BY course_language ORDER BY number_of_courses DESC";
}
$res = Database::query($sql);
$result = array();
while ($obj = Database::fetch_object($res)) {
$result[$obj->course_language] = $obj->number_of_courses;
}
Statistics::print_stats(get_lang('CountCourseByLanguage'), $result, true);
}
/**
* Shows the number of users having their picture uploaded in Dokeos.
*/
static function print_user_pictures_stats()
{
$user_table = Database :: get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$url_condition = ", $access_url_rel_user_table as url WHERE url.user_id=u.user_id AND access_url_id='".$current_url_id."'";
$url_condition2 = " AND url.user_id=u.user_id AND access_url_id='".$current_url_id."'";
$table = ", $access_url_rel_user_table as url ";
}
$sql = "SELECT COUNT(*) AS n FROM $user_table as u ".$url_condition;
$res = Database::query($sql);
$count1 = Database::fetch_object($res);
$sql = "SELECT COUNT(*) AS n FROM $user_table as u $table ".
"WHERE LENGTH(picture_uri) > 0 $url_condition2";
$res = Database::query($sql);
$count2 = Database::fetch_object($res);
// #users without picture
$result[get_lang('No')] = $count1->n - $count2->n;
$result[get_lang('Yes')] = $count2->n; // #users with picture
Statistics::print_stats(get_lang('CountUsers').' ('.get_lang('UserPicture').')', $result, true);
}
static function print_activities_stats()
{
echo ''.get_lang('ImportantActivities').'
';
// Create a search-box
$form = new FormValidator('search_simple', 'get', api_get_path(
WEB_CODE_PATH
).'admin/statistics/index.php', '', 'width=200px', false);
$renderer =& $form->defaultRenderer();
$renderer->setElementTemplate('{element} ');
$form->addElement('hidden', 'report', 'activities');
$form->addElement('hidden', 'activities_direction', 'DESC');
$form->addElement('hidden', 'activities_column', '4');
$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('activities', array(
'Statistics',
'get_number_of_activities'
), array(
'Statistics',
'get_activities_data'
), 5, 50, 'DESC');
$parameters = array();
$parameters['report'] = 'activities';
if (isset($_GET['keyword'])) {
$parameters['keyword'] = Security::remove_XSS($_GET['keyword']);
}
$table->set_additional_parameters($parameters);
$table->set_header(0, get_lang('EventType'));
$table->set_header(1, get_lang('DataType'));
$table->set_header(2, get_lang('Value'));
$table->set_header(3, get_lang('UserName'));
$table->set_header(4, get_lang('IPAddress'));
$table->set_header(5, get_lang('Date'));
$table->display();
}
/**
* Shows statistics about the time of last visit to each course.
*/
static function print_course_last_visit()
{
$access_url_rel_course_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
$columns[0] = 'c_id';
$columns[1] = 'access_date';
$sql_order[SORT_ASC] = 'ASC';
$sql_order[SORT_DESC] = 'DESC';
$per_page = isset($_GET['per_page']) ? intval($_GET['per_page']) : 10;
$page_nr = isset($_GET['page_nr']) ? intval($_GET['page_nr']) : 1;
$column = isset($_GET['column']) ? intval($_GET['column']) : 0;
$date_diff = isset($_GET['date_diff']) ? intval($_GET['date_diff']) : 60;
if (!in_array($_GET['direction'], array(SORT_ASC, SORT_DESC))) {
$direction = SORT_ASC;
} else {
$direction = isset($_GET['direction']) ? $_GET['direction'] : SORT_ASC;
}
$form = new FormValidator('courselastvisit', 'get');
$form->addElement('hidden', 'report', 'courselastvisit');
$form->add_textfield('date_diff', get_lang('Days'), true);
$form->addRule('date_diff', 'InvalidNumber', 'numeric');
$form->addElement('style_submit_button', 'submit', get_lang('Search'), 'class="search"');
if (!isset($_GET['date_diff'])) {
$defaults['date_diff'] = 60;
} else {
$defaults['date_diff'] = Security::remove_XSS($_GET['date_diff']);
}
$form->setDefaults($defaults);
$form->display();
$values = $form->exportValues();
$date_diff = $values['date_diff'];
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
$tableCourse = Database::get_main_table(TABLE_MAIN_COURSE);
if (api_is_multiple_url_enabled()) {
$sql = "SELECT access_date, c.code FROM $table s , $access_url_rel_course_table u, $tableCourse c
WHERE c.id = u.c_id AND c.id = s.c_id AND access_url_id='".$current_url_id."' ".
"GROUP BY access_cours_code ".
"HAVING s.c_id <> '' ".
"AND DATEDIFF( '".date('Y-m-d h:i:s')."' , access_date ) <= ".$date_diff;
} else {
$sql = "SELECT access_date, c.code FROM $table , $tableCourse c
WHERE c_id = c.id
GROUP BY c_id
HAVING c_id <> ''AND
DATEDIFF( '".date('Y-m-d h:i:s')."' , access_date ) <= ".$date_diff;
}
$res = Database::query($sql);
$number_of_courses = Database::num_rows($res);
$sql .= ' ORDER BY '.$columns[$column].' '.$sql_order[$direction];
$from = ($page_nr - 1) * $per_page;
$sql .= ' LIMIT '.$from.','.$per_page;
echo ''.get_lang('LastAccess').' >= '.$date_diff.' '.get_lang('Days').'
';
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$courses = array();
while ($obj = Database::fetch_object($res)) {
$course = array();
$course[] = ''.$obj->code.' ';
//Allow sort by date hiding the numerical date
$course[] = ''.$obj->access_date.''.api_convert_and_format_date(
$obj->access_date
);
$courses[] = $course;
}
$parameters['date_diff'] = $date_diff;
$parameters['report'] = 'courselastvisit';
$table_header[] = array(get_lang("CourseCode"), true);
$table_header[] = array(get_lang("LastAccess"), true);
Display :: display_sortable_table(
$table_header,
$courses,
array('column' => $column, 'direction' => $direction),
array(),
$parameters
);
} else {
echo get_lang('NoSearchResults');
}
}
/**
* Displays the statistics of the messages sent and received by each user in the social network
* @param string Type of message: 'sent' or 'received'
* @return array Message list
*/
static function get_messages($message_type)
{
$message_table = Database::get_main_table(TABLE_MAIN_MESSAGE);
$user_table = Database::get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
switch ($message_type) {
case 'sent':
$field = 'user_sender_id';
break;
case 'received':
$field = 'user_receiver_id';
break;
}
if (api_is_multiple_url_enabled()) {
$sql = "SELECT lastname, firstname, username, COUNT($field) AS count_message ".
"FROM ".$access_url_rel_user_table." as url, ".$message_table." m ".
"LEFT JOIN ".$user_table." u ON m.$field = u.user_id ".
"WHERE url.user_id = m.$field AND access_url_id='".$current_url_id."' ".
"GROUP BY m.$field ORDER BY count_message DESC ";
} else {
$sql = "SELECT lastname, firstname, username, COUNT($field) AS count_message ".
"FROM ".$message_table." m ".
"LEFT JOIN ".$user_table." u ON m.$field = u.user_id ".
"GROUP BY m.$field ORDER BY count_message DESC ";
}
$res = Database::query($sql);
$messages_sent = array();
while ($messages = Database::fetch_array($res)) {
if (empty($messages['username'])) {
$messages['username'] = get_lang('Unknown');
}
$users = api_get_person_name(
$messages['firstname'],
$messages['lastname']
).'
('.$messages['username'].')';
$messages_sent[$users] = $messages['count_message'];
}
return $messages_sent;
}
/**
* Count the number of friends for social network users
*/
static function get_friends()
{
$user_friend_table = Database::get_main_table(TABLE_MAIN_USER_REL_USER);
$user_table = Database::get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if (api_is_multiple_url_enabled()) {
$sql = "SELECT lastname, firstname, username, COUNT(friend_user_id) AS count_friend ".
"FROM ".$access_url_rel_user_table." as url, ".$user_friend_table." uf ".
"LEFT JOIN ".$user_table." u ON uf.user_id = u.user_id ".
"WHERE uf.relation_type <> '".USER_RELATION_TYPE_RRHH."' AND uf.user_id = url.user_id AND access_url_id='".$current_url_id."' ".
"GROUP BY uf.user_id ORDER BY count_friend DESC ";
} else {
$sql = "SELECT lastname, firstname, username, COUNT(friend_user_id) AS count_friend ".
"FROM ".$user_friend_table." uf ".
"LEFT JOIN ".$user_table." u ON uf.user_id = u.user_id ".
"WHERE uf.relation_type <> '".USER_RELATION_TYPE_RRHH."' ".
"GROUP BY uf.user_id ORDER BY count_friend DESC ";
}
$res = Database::query($sql);
$list_friends = array();
while ($friends = Database::fetch_array($res)) {
$users = api_get_person_name(
$friends['firstname'],
$friends['lastname']
).'
('.$friends['username'].')';
$list_friends[$users] = $friends['count_friend'];
}
return $list_friends;
}
/**
* Print the number of users that didn't login for a certain period of time
*/
static function print_users_not_logged_in_stats()
{
$total_logins = array();
$table = Database::get_main_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$access_url_rel_user_table = Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
$total = self::count_users();
if (api_is_multiple_url_enabled()) {
$table_url = ", $access_url_rel_user_table";
$where_url = " AND login_user_id=user_id AND access_url_id='".$current_url_id."'";
} else {
$table_url = '';
$where_url = '';
}
$sql[get_lang('Thisday')] =
"SELECT count(distinct(login_user_id)) AS number ".
" FROM $table $table_url ".
" WHERE DATE_ADD(login_date, INTERVAL 1 DAY) >= NOW() $where_url";
$sql[get_lang('Last7days')] =
"SELECT count(distinct(login_user_id)) AS number ".
" FROM $table $table_url ".
" WHERE DATE_ADD(login_date, INTERVAL 7 DAY) >= NOW() $where_url";
$sql[get_lang('Last31days')] =
"SELECT count(distinct(login_user_id)) AS number ".
" FROM $table $table_url ".
" WHERE DATE_ADD(login_date, INTERVAL 31 DAY) >= NOW() $where_url";
$sql[sprintf(get_lang('LastXMonths'), 6)] =
"SELECT count(distinct(login_user_id)) AS number ".
" FROM $table $table_url ".
" WHERE DATE_ADD(login_date, INTERVAL 6 MONTH) >= NOW() $where_url";
$sql[get_lang('NeverConnected')] =
"SELECT count(distinct(login_user_id)) AS number ".
" FROM $table $table_url WHERE 1=1 $where_url";
foreach ($sql as $index => $query) {
$res = Database::query($query);
$obj = Database::fetch_object($res);
$r = $total - $obj->number;
$total_logins[$index] = $r < 0 ? 0 : $r;
}
Statistics::print_stats(get_lang('StatsUsersDidNotLoginInLastPeriods'), $total_logins, false);
}
}