Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/admin/statistics/statistics.lib.php

627 lines
26 KiB

<?php
/* For licensing terms, see /license.txt */
require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
/**
* This class provides some functions for statistics
* @package chamilo.statistics
*/
class Statistics {
/**
* Converts a number of bytes in a formatted string
* @param int $size
* @return string Formatted file size
*/
function make_size_string($size) {
if ($size < pow(2,10)) return $size." bytes";
if ($size >= 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 $category_code Code of a course category. Default: count
* all courses.
* @return int Number of courses counted
*/
function count_courses($category_code = NULL) {
global $_configuration;
$course_table = Database :: get_main_table(TABLE_MAIN_COURSE);
$access_url_rel_course_table= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT COUNT(*) AS number FROM ".$course_table." as c, ".$access_url_rel_course_table." as u WHERE u.course_code=c.code AND access_url_id='".$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 $obj->number;
}
/**
* Count users
* @param int optional, user status (COURSEMANAGER or STUDENT), if it's not setted it'll count all users.
* @param string optional, code of a course category. Default: count only users without filtering category
* @todo count invisible courses
* @return int Number of users counted
*/
function count_users($status = null, $category_code = null, $count_invisible_courses = true) {
global $_configuration;
// 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);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$status_filter = isset($status)?' AND status = '.intval($status):'';
$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."' $status_filter ";
if (isset ($category_code)) {
$sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number FROM $course_user_table cu, $course_table c, $access_url_rel_user_table as url WHERE c.code = cu.course_code AND c.category_code = '".Database::escape_string($category_code)."' AND cu.user_id=url.user_id AND access_url_id='".$current_url_id."' $status_filter ";
}
} else {
$status_filter = isset($status)?' WHERE status = '.intval($status):'';
$sql = "SELECT COUNT(DISTINCT(user_id)) AS number FROM $user_table $status_filter ";
if (isset ($category_code)) {
$status_filter = isset($status)?' AND status = '.intval($status):'';
$sql = "SELECT COUNT(DISTINCT(cu.user_id)) AS number FROM $course_user_table cu, $course_table c WHERE c.code = cu.course_code AND c.category_code = '".Database::escape_string($category_code)."' $status_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
*/
function get_number_of_activities() {
// Database table definitions
global $_configuration;
$track_e_default = Database :: get_statistic_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);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$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 $obj->total_number_of_items;
}
/**
* Get activities data to display
*/
function get_activities_data($from, $number_of_items, $column, $direction) {
global $dateTimeFormatLong, $_configuration;
$track_e_default = Database :: get_statistic_table(TABLE_STATISTIC_TRACK_E_DEFAULT);
$table_user = Database::get_main_table(TABLE_MAIN_USER);
$table_course = Database::get_main_table(TABLE_MAIN_COURSE);
$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'))) {
$direction = 'DESC';
}
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT
default_event_type as col0,
default_value_type as col1,
default_value as col2,
user.username as col3,
default_date as col4
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,
default_date as col4
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 col4 DESC ";
}
$sql .= " LIMIT $from,$number_of_items ";
$res = Database::query($sql);
$activities = array ();
while ($row = Database::fetch_row($res)) {
$row[4] = api_get_local_time($row[4], null, date_default_timezone_get());
$activities[] = $row;
}
return $activities;
}
/**
* Get all course categories
* @return array All course categories (code => name)
*/
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 $data
*/
function rescale($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 $is_file_size
*/
function print_stats($title, $stats, $show_total = true, $is_file_size = false) {
$total = 0;
$data = Statistics::rescale($stats);
echo '<table class="data_table" cellspacing="0" cellpadding="3">
<tr><th colspan="'.($show_total ? '4' : '3').'">'.$title.'</th></tr>';
$i = 0;
foreach ($stats as $subtitle => $number) {
$total += $number;
}
foreach ($stats as $subtitle => $number) {
//$i = $i % 13;
/*if (api_strlen($subtitle) > 30) {
$subtitle = '<acronym title="'.$subtitle.'">'.$subtitle.'</acronym>';
}*/
if (!$is_file_size) {
$number_label = number_format($number, 0, ',', '.');
} else {
$number_label = Statistics::make_size_string($number);
}
echo '<tr class="row_'.($i%2 == 0 ? 'odd' : 'even').'">
<td width="150">'.$subtitle.'</td>
<td width="550">
'.Display::return_icon('bar_1u.gif', get_lang('Statistics') ,array('width' => $data[$subtitle], 'height' => '10')).'
</td>
<td align="right">'.$number_label.'</td>';
if ($show_total) {
echo '<td align="right"> '.($total>0?number_format(100*$number/$total, 1, ',', '.'):'0').'%</td>';
}
echo '</tr>';
$i ++;
}
if ($show_total) {
if (!$is_file_size) {
$total_label = number_format($total, 0, ',', '.');
} else {
$total_label = Statistics::make_size_string($total);
}
echo '<tr><th colspan="4" align="right">'.get_lang('Total').': '.$total_label.'</td></tr>';
}
echo '</table>';
}
/**
* Show some stats about the number of logins
* @param string $type month, hour or day
*/
function print_login_stats($type) {
global $_configuration;
$table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$access_url_rel_user_table= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$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 '<br />';
$res = Database::query($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
*/
function print_recent_login_stats() {
global $_configuration;
$total_logins = array();
$table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LOGIN);
$access_url_rel_user_table= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$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
*/
function print_tool_stats() {
global $_configuration;
$table = Database::get_statistic_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($tool), '');
}
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT access_tool, count( access_id )
AS number_of_logins FROM $table, $access_url_rel_course_table
WHERE access_tool IN ('".implode("','",$tools)."') AND course_code = access_cours_code 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
*/
function print_course_by_language_stats() {
global $_configuration;
$table = Database :: get_main_table(TABLE_MAIN_COURSE);
$access_url_rel_course_table= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_COURSE);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT course_language, count( c.code )
AS number_of_courses
FROM $table as c, $access_url_rel_course_table as u WHERE u.course_code=c.code AND access_url_id='".$current_url_id."' GROUP BY course_language";
} else {
$sql = "SELECT course_language, count( code )
AS number_of_courses
FROM $table GROUP BY course_language ";
}
$res = Database::query($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.
*/
function print_user_pictures_stats() {
global $_configuration;
$user_table = Database :: get_main_table(TABLE_MAIN_USER);
$access_url_rel_user_table= Database :: get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$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);
}
function print_activities_stats() {
echo '<h4>'.get_lang('ImportantActivities').'</h4>';
// Create a search-box
$form = new FormValidator('search_simple','get',api_get_path(WEB_CODE_PATH).'admin/statistics/index.php?action=activities','','width=200px',false);
$renderer =& $form->defaultRenderer();
$renderer->setElementTemplate('<span>{element}</span> ');
$form->addElement('hidden','action','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('SearchActivities'),'class="search"');
echo '<div class="actions">';
$form->display();
echo '</div>';
$table = new SortableTable('activities', array('Statistics','get_number_of_activities'), array('Statistics','get_activities_data'),4,50,'DESC');
$parameters = array();
$parameters['action'] = 'activities';
if (isset($_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('Date'));
$table->display();
}
/**
* Shows statistics about the time of last visit to each course.
*/
function print_course_last_visit() {
global $_configuration;
$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] = 'access_cours_code';
$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','action','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'];
$table = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_LASTACCESS);
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT * FROM $table, $access_url_rel_course_table WHERE course_code = access_cours_code AND access_url_id='".$current_url_id."'
GROUP BY access_cours_code
HAVING access_cours_code <> ''
AND DATEDIFF( NOW() , access_date ) <= ". $date_diff;
} else {
$sql = "SELECT * FROM $table
GROUP BY access_cours_code
HAVING access_cours_code <> ''
AND DATEDIFF( NOW() , 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.','.$per_page;
echo '<p>'.get_lang('LastAccess').' &gt;= '.$date_diff.' '.get_lang('Days').'</p>';
$res = Database::query($sql);
if (Database::num_rows($res) > 0) {
$courses = array ();
while ($obj = Database::fetch_object($res)) {
$course = array ();
$course[]= '<a href="'.api_get_path(WEB_PATH).'courses/'.$obj->access_cours_code.'">'.$obj->access_cours_code.' <a>';
$course[] = api_convert_and_format_date($obj->access_date);
$courses[] = $course;
}
$parameters['action'] = 'courselastvisit';
$parameters['date_diff'] = $date_diff;
$parameters['action'] = '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 (), $parameters);
} else {
echo get_lang('NoSearchResults');
}
}
/**
* Displays the statistics of the messages sent and received by each user in the social network
* @param string Type of message: 'sent' or 'received'
* @return array Message list
*/
function get_messages($message_type) {
global $_configuration;
$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':
$field = 'user_receiver_id';
break;
}
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT lastname, firstname, username,
COUNT($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";
} 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";
}
$res = Database::query($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'], $messages['lastname']).'<br />('.$messages['username'].')';
$messages_sent[$users] = $messages['count_message'];
}
return $messages_sent;
}
/**
* Count the number of friends for social network users
*/
function get_friends() {
global $_configuration;
$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);
$current_url_id = api_get_current_access_url_id();
if ($_configuration['multiple_access_urls']) {
$sql = "SELECT lastname, firstname, username,
COUNT(friend_user_id) AS count_friend
FROM ".$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";
} 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";
}
$res = Database::query($sql);
$list_friends = array();
while ($friends = Database::fetch_array($res)) {
$users = api_get_person_name($friends['firstname'], $friends['lastname']).'<br />('.$friends['username'].')';
$list_friends[$users] = $friends['count_friend'];
}
return $list_friends;
}
}