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- <?php //$id: $
- /* For licensing terms, see /license.txt */
- /**
- * This is the session library for Chamilo.
- * All main sessions functions should be placed here.
- * @package chamilo.library
- */
- /**
- * Code
- */
- /* LIBRARIES */
- /**
- * This class provides methods for sessions management.
- * Include/require it in your code to use its features.
- *
- * @package chamilo.library
- */
- class SessionManager {
- private function __construct() {
- }
- /**
- * Fetches a session from the database
- * @param int Session ID
- * @return array Session details (id, id_coach, name, nbr_courses, nbr_users, nbr_classes, date_start, date_end, nb_days_access_before_beginning,nb_days_access_after_end, session_admin_id)
- */
- public static function fetch($id) {
- $t = Database::get_main_table(TABLE_MAIN_SESSION);
- if ($id != strval(intval($id))) { return array(); }
- $s = "SELECT * FROM $t WHERE id = $id";
- $r = Database::query($s);
- if (Database::num_rows($r) != 1) { return array(); }
- return Database::fetch_array($r,'ASSOC');
- }
- /**
- * Create a session
- * @author Carlos Vargas from existing code
- * @param string name
- * @param integer Start year (yyyy)
- * @param integer Start month (mm)
- * @param integer Start day (dd)
- * @param integer End year (yyyy)
- * @param integer End month (mm)
- * @param integer End day (dd)
- * @param integer Number of days that the coach can access the session before the start date
- * @param integer Number of days that the coach can access the session after the end date
- * @param integer If 1, means there are no date limits
- * @param mixed If integer, this is the session coach id, if string, the coach ID will be looked for from the user table
- * @param integer ID of the session category in which this session is registered
- * @param integer Visibility after end date (0 = read-only, 1 = invisible, 2 = accessible)
- * @param string Start limit = true if the start date has to be considered
- * @param string End limit = true if the end date has to be considered
- * @todo use an array to replace all this parameters or use the model.lib.php ...
- * @return mixed Session ID on success, error message otherwise
- **/
- public static function create_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end,$sday_end,$snb_days_acess_before,$snb_days_acess_after, $nolimit,$coach_username, $id_session_category,$id_visibility, $start_limit = true, $end_limit = true, $fix_name = false) {
- $name = Database::escape_string(trim($sname));
- $year_start = intval($syear_start);
- $month_start = intval($smonth_start);
- $day_start = intval($sday_start);
- $year_end = intval($syear_end);
- $month_end = intval($smonth_end);
- $day_end = intval($sday_end);
- $nb_days_acess_before = intval($snb_days_acess_before);
- $nb_days_acess_after = intval($snb_days_acess_after);
- $id_session_category = intval($id_session_category);
- $id_visibility = intval($id_visibility);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
-
- if(is_int($coach_username)) {
- $id_coach = $coach_username;
- } else {
- $sql = 'SELECT user_id FROM '.$tbl_user.' WHERE username="'.Database::escape_string($coach_username).'"';
- $rs = Database::query($sql);
- $id_coach = Database::result($rs,0,'user_id');
- }
- if (empty($nolimit)) {
- $date_start ="$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
- $date_end ="$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
- } else {
- $id_visibility = 1; // by default session visibility is read only
- $date_start ="0000-00-00";
- $date_end ="0000-00-00";
- }
-
- if (empty($end_limit)) {
- $date_end ="0000-00-00";
- $id_visibility = 1; // by default session visibility is read only
- }
-
- if (empty($start_limit)) {
- $date_start ="0000-00-00";
- }
-
- if (empty($name)) {
- $msg=get_lang('SessionNameIsRequired');
- return $msg;
- } elseif (empty($coach_username)) {
- $msg=get_lang('CoachIsRequired');
- return $msg;
- } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
- $msg=get_lang('InvalidStartDate');
- return $msg;
- } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
- $msg=get_lang('InvalidEndDate');
- return $msg;
- } elseif(!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
- $msg=get_lang('StartDateShouldBeBeforeEndDate');
- return $msg;
- } else {
- $ready_to_create = false;
- if ($fix_name) {
- $name = self::generate_nice_next_session_name($name);
- if ($name) {
- $ready_to_create = true;
- } else {
- $msg=get_lang('SessionNameAlreadyExists');
- return $msg;
- }
- } else {
- $rs = Database::query("SELECT 1 FROM $tbl_session WHERE name='".$name."'");
- if (Database::num_rows($rs)) {
- $msg=get_lang('SessionNameAlreadyExists');
- return $msg;
- }
- $ready_to_create = true;
- }
-
- if ($ready_to_create) {
- $sql_insert = "INSERT INTO $tbl_session(name,date_start,date_end,id_coach,session_admin_id, nb_days_access_before_beginning, nb_days_access_after_end, session_category_id,visibility)
- VALUES('".$name."','$date_start','$date_end','$id_coach',".api_get_user_id().",".$nb_days_acess_before.", ".$nb_days_acess_after.", ".$id_session_category.", ".$id_visibility.")";
- Database::query($sql_insert);
- $session_id = Database::insert_id();
-
- //Adding to the correct URL
- require_once api_get_path(LIBRARY_PATH).'urlmanager.lib.php';
-
- $tbl_user_rel_access_url= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_USER);
- $access_url_id = api_get_current_access_url_id();
- UrlManager::add_session_to_url($session_id,$access_url_id);
- // add event to system log
- $user_id = api_get_user_id();
- event_system(LOG_SESSION_CREATE, LOG_SESSION_ID, $session_id, api_get_utc_datetime(), $user_id);
- return $session_id;
- }
- }
- }
-
- function session_name_exists($session_name) {
- $session_name = Database::escape_string($session_name);
- $result = Database::fetch_array(Database::query("SELECT COUNT(*) as count FROM ".Database::get_main_table(TABLE_MAIN_SESSION)." WHERE name = '$session_name' "));
- return $result['count'] > 0;
- }
-
- function get_count_admin() {
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $where = '';
- $user_id = api_get_user_id();
- if (api_is_session_admin()==true) {
- $where.=" WHERE s.session_admin_id = $user_id ";
- }
-
- $query_rows = "SELECT count(*) as total_rows
- FROM $tbl_session s
- LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
- INNER JOIN $tbl_user u ON s.id_coach = u.user_id
- $where ";
-
- global $_configuration;
- if ($_configuration['multiple_access_urls']) {
- $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
- $access_url_id = api_get_current_access_url_id();
- if ($access_url_id != -1) {
- $query_rows = "SELECT count(*) as total_rows
- FROM $tbl_session s
- LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
- INNER JOIN $tbl_user u ON s.id_coach = u.user_id
- INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
- $where ";
- }
- }
- $result_rows = Database::query($query_rows);
- $recorset = Database::fetch_array($result_rows);
- $num = $recorset['total_rows'];
- return $num;
- }
- /**
- * Gets the admin session list callback of the admin/session_list.php page
- * @param array order and limit keys
- */
- function get_sessions_admin($options) {
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
-
- $where = 'WHERE 1=1 ';
- $user_id = api_get_user_id();
- if (api_is_session_admin()==true) {
- $where.=" AND s.session_admin_id = $user_id ";
- }
-
- if (!empty($options['where'])) {
- $where .= ' AND '.$options['where'];
- }
-
- $coach_name = " CONCAT (u.lastname , ' ', u.firstname) as coach_name ";
- if (api_is_western_name_order()) {
- $coach_name = " CONCAT (u.firstname, ' ', u.lastname) as coach_name ";
- }
- $query = "SELECT s.name, nbr_courses, s.date_start, s.date_end, $coach_name , sc.name as category_name, s.visibility, u.user_id, s.id ".
- " FROM $tbl_session s ".
- " LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id ".
- " INNER JOIN $tbl_user u ON s.id_coach = u.user_id ".
- $where;
-
- if ($_configuration['multiple_access_urls']) {
- $table_access_url_rel_session= Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
- $access_url_id = api_get_current_access_url_id();
- if ($access_url_id != -1) {
- $where.= " AND ar.access_url_id = $access_url_id ";
- $query = "SELECT s.id, s.name, s.nbr_courses, s.date_start, s.date_end, u.firstname, u.lastname , sc.name as category_name , s.visibility, u.user_id
- FROM $tbl_session s
- LEFT JOIN $tbl_session_category sc ON s.session_category_id = sc.id
- INNER JOIN $tbl_user u ON s.id_coach = u.user_id
- INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
- $where";
- }
- }
- $query .= "ORDER BY ".$options['order']." LIMIT ".$options['limit'];
-
- $result = Database::query($query);
- $formatted_sessions = array();
- if (Database::num_rows($result)) {
- $sessions = Database::store_result($result);
- foreach ($sessions as $session) {
- $session['name'] = Display::url($session['name'], "resume_session.php?id_session=".$session['id']);
-
- $session['coach_name'] = Display::url($session['coach_name'], "user_information.php?user_id=".$session['user_id']);
-
- if ($session['date_start'] == '0000-00-00') {
- $session['date_start'] = '';
- }
- if ($session['date_end'] == '0000-00-00') {
- $session['date_end'] = '';
- }
- switch ($session['visibility']) {
- case SESSION_VISIBLE_READ_ONLY: //1
- $session['visibility'] = get_lang('ReadOnly');
- break;
- case SESSION_VISIBLE: //2
- $session['visibility'] = get_lang('Visible');
- break;
- case SESSION_INVISIBLE: //3
- $session['visibility'] = api_ucfirst(get_lang('Invisible'));
- break;
- }
- $formatted_sessions[] = $session;
- }
- }
- return $formatted_sessions;
- }
-
-
- /**
- * Creates a new course code based in given code
- *
- * @param string wanted code
- * <code>
- * $wanted_code = 'curse' if there are in the DB codes like curse1 curse2 the function will return: course3
- * if the course code doest not exist in the DB the same course code will be returned
- * </code>
- * @return string wanted unused code
- */
- function generate_nice_next_session_name($session_name) {
- $session_name_ok = !self::session_name_exists($session_name);
- if (!$session_name_ok) {
- $table = Database::get_main_table(TABLE_MAIN_SESSION);
- $session_name = Database::escape_string($session_name);
- $sql = "SELECT count(*) as count FROM $table WHERE name LIKE '$session_name%'";
- $result = Database::query($sql);
- if (Database::num_rows($result) > 0 ) {
- $row = Database::fetch_array($result);
- $count = $row['count'] + 1;
- $session_name = $session_name.'_'.$count;
- $result = self::session_name_exists($session_name);
- if (!$result) {
- return $session_name;
- }
- }
- return false;
- }
- return $session_name;
- }
-
- /**
- * Edit a session
- * @author Carlos Vargas from existing code
- * @param integer id
- * @param string name
- * @param integer year_start
- * @param integer month_start
- * @param integer day_start
- * @param integer year_end
- * @param integer month_end
- * @param integer day_end
- * @param integer nb_days_acess_before
- * @param integer nb_days_acess_after
- * @param integer nolimit
- * @param integer id_coach
- * @param integer id_session_category
- * @return $id;
- * The parameter id is a primary key
- **/
- public static function edit_session ($id,$name,$year_start,$month_start,$day_start,$year_end,$month_end,$day_end,$nb_days_acess_before,$nb_days_acess_after,$nolimit,$id_coach, $id_session_category, $id_visibility, $start_limit = true, $end_limit = true) {
- global $_user;
- $name=trim(stripslashes($name));
- $year_start=intval($year_start);
- $month_start=intval($month_start);
- $day_start=intval($day_start);
- $year_end=intval($year_end);
- $month_end=intval($month_end);
- $day_end=intval($day_end);
- $id_coach= intval($id_coach);
- $nb_days_acess_before= intval($nb_days_acess_before);
- $nb_days_acess_after = intval($nb_days_acess_after);
- $id_session_category = intval($id_session_category);
- $id_visibility = intval($id_visibility);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
-
- if (empty($nolimit)) {
- $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
- $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
- } else {
- $date_start = "0000-00-00";
- $date_end = "0000-00-00";
- $id_visibility = 1;//force read only
- }
-
- if (!empty($no_end_limit)) {
- $date_end = "0000-00-00";
- }
-
- if (empty($end_limit)) {
- $date_end ="0000-00-00";
- $id_visibility = 1;//force read only
- }
-
- if (empty($start_limit)) {
- $date_start ="0000-00-00";
- }
-
- if (empty($name)) {
- $msg=get_lang('SessionNameIsRequired');
- return $msg;
- } elseif (empty($id_coach)) {
- $msg=get_lang('CoachIsRequired');
- return $msg;
- } elseif (!empty($start_limit) && empty($nolimit) && (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start))) {
- $msg=get_lang('InvalidStartDate');
- return $msg;
- } elseif (!empty($end_limit) && empty($nolimit) && (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end))) {
- $msg=get_lang('InvalidEndDate');
- return $msg;
- } elseif (!empty($start_limit) && !empty($end_limit) && empty($nolimit) && $date_start >= $date_end) {
- $msg=get_lang('StartDateShouldBeBeforeEndDate');
- return $msg;
- } else {
- $rs = Database::query("SELECT id FROM $tbl_session WHERE name='".Database::escape_string($name)."'");
- $exists = false;
- while ($row = Database::fetch_array($rs)) {
- if($row['id']!=$id)
- $exists = true;
- }
- if ($exists) {
- $msg=get_lang('SessionNameAlreadyExists');
- return $msg;
- } else {
- $sql="UPDATE $tbl_session " .
- "SET name='".Database::escape_string($name)."',
- date_start='".$date_start."',
- date_end='".$date_end."',
- id_coach='".$id_coach."',
- nb_days_access_before_beginning = ".$nb_days_acess_before.",
- nb_days_access_after_end = ".$nb_days_acess_after.",
- session_category_id = ".$id_session_category." ,
- visibility= ".$id_visibility."
- WHERE id='$id'";
- Database::query($sql);
- return $id;
- }
- }
- }
- /**
- * Delete session
- * @author Carlos Vargas from existing code
- * @param array id_checked
- * @param boolean optional, true if the function is called by a webservice, false otherwise.
- * @return void Nothing, or false on error
- * The parameters is a array to delete sessions
- **/
- public static function delete_session ($id_checked,$from_ws = false) {
- $tbl_session= Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_rel_course= Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $tbl_session_rel_course_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session_rel_user= Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $tbl_url_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
-
- global $_user;
- if(is_array($id_checked)) {
- $id_checked = Database::escape_string(implode(',',$id_checked));
- } else {
- $id_checked = intval($id_checked);
- }
- if (!api_is_platform_admin() && !$from_ws) {
- $sql = 'SELECT session_admin_id FROM '.Database :: get_main_table(TABLE_MAIN_SESSION).' WHERE id='.$id_checked;
- $rs = Database::query($sql);
- if (Database::result($rs,0,0)!=$_user['user_id']) {
- api_not_allowed(true);
- }
- }
- Database::query("DELETE FROM $tbl_session WHERE id IN($id_checked)");
- Database::query("DELETE FROM $tbl_session_rel_course WHERE id_session IN($id_checked)");
- Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session IN($id_checked)");
- Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session IN($id_checked)");
- Database::query("DELETE FROM $tbl_url_session WHERE session_id IN($id_checked)");
- // delete extra session fields
- $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
- $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
- // Delete extra fields from session where field variable is "SECCION"
- $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'SECCION' ";
- $rs_field = Database::query($sql);
- $field_id = 0;
- if (Database::num_rows($rs_field) == 1) {
- $row_field = Database::fetch_row($rs_field);
- $field_id = $row_field[0];
- $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
- $rs_delete_sfv = Database::query($sql_delete_sfv);
- }
- $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
- $rs_field_id = Database::query($sql);
- if (Database::num_rows($rs_field_id) == 0) {
- $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
- $rs_delete_sf = Database::query($sql_delete_sf);
- }
- /*
- $sql = "SELECT distinct field_id FROM $t_sfv WHERE session_id = '$id_checked'";
- $res_field_ids = @Database::query($sql);
- if (Database::num_rows($res_field_ids) > 0) {
- while($row_field_id = Database::fetch_row($res_field_ids)){
- $field_ids[] = $row_field_id[0];
- }
- }
- //delete from table_session_field_value from a given session id
- $sql_session_field_value = "DELETE FROM $t_sfv WHERE session_id = '$id_checked'";
- @Database::query($sql_session_field_value);
- $sql = "SELECT distinct field_id FROM $t_sfv";
- $res_field_all_ids = @Database::query($sql);
- if (Database::num_rows($res_field_all_ids) > 0) {
- while($row_field_all_id = Database::fetch_row($res_field_all_ids)){
- $field_all_ids[] = $row_field_all_id[0];
- }
- }
- if (count($field_ids) > 0 && count($field_all_ids) > 0) {
- foreach($field_ids as $field_id) {
- // check if field id is used into table field value
- if (in_array($field_id,$field_all_ids)) {
- continue;
- } else {
- $sql_session_field = "DELETE FROM $t_sf WHERE id = '$field_id'";
- Database::query($sql_session_field);
- }
- }
- }
- */
- // Add event to system log
- $user_id = api_get_user_id();
- event_system(LOG_SESSION_DELETE, LOG_SESSION_ID, $id_checked, api_get_utc_datetime(), $user_id);
- }
- /**
- * Subscribes users to the given session and optionally (default) unsubscribes previous users
- * @author Carlos Vargas from existing code
- * @param integer Session ID
- * @param array List of user IDs
- * @param bool Whether to unsubscribe existing users (true, default) or not (false)
- * @return void Nothing, or false on error
- **/
- public static function suscribe_users_to_session($id_session, $user_list, $session_visibility = SESSION_VISIBLE_READ_ONLY, $empty_users=true, $send_email=false) {
- if ($id_session!= strval(intval($id_session))) return false;
- foreach($user_list as $intUser){
- if ($intUser!= strval(intval($intUser))) return false;
- }
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $session_info = api_get_session_info($id_session);
- $session_name = $session_info['name'];
- //from function parameter
- if (empty($session_visibility)) {
- $session_visibility = $session_info['visibility']; //loaded from DB
- //default status loaded if empty
- if (empty($session_visibility))
- $session_visibility = SESSION_VISIBLE_READ_ONLY; // by default readonly 1
- } else {
- if (!in_array($session_visibility, array(SESSION_VISIBLE_READ_ONLY, SESSION_VISIBLE, SESSION_INVISIBLE))) {
- $session_visibility = SESSION_VISIBLE_READ_ONLY;
- }
- }
- $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$id_session' ";
-
- $result = Database::query($sql);
- $existingUsers = array();
- while($row = Database::fetch_array($result)) {
- $existingUsers[] = $row['id_user'];
- }
- $sql = "SELECT course_code FROM $tbl_session_rel_course WHERE id_session = '$id_session'";
- $result = Database::query($sql);
- $course_list = array();
- while($row = Database::fetch_array($result)) {
- $course_list[]=$row['course_code'];
- }
- if ($send_email) {
- //global $_configuration;
- //sending emails only
- if (is_array($user_list) && count($user_list)>0) {
- foreach($user_list as $enreg_user) {
- if (!in_array($enreg_user,$existingUsers )) {
- //send email
- $emailbody = '';
- $emailheaders = '';
- $user_info = UserManager::get_user_info_by_id($enreg_user);
- $firstname = $user_info['firstname'];
- $lastname = $user_info['lastname'];
- $email = $user_info['email'];
- $emailto = '"'.$firstname.' '.$lastname.'" <'.$email.'>';
- $emailsubject = '['.get_setting('siteName').'] '.get_lang('YourReg').' '.get_setting('siteName');
- $emailheaders = 'From: '.get_setting('administratorName').' '.get_setting('administratorSurname').' <'.get_setting('emailAdministrator').">\n";
- $emailheaders .= 'Reply-To: '.get_setting('emailAdministrator');
-
- $emailbody = get_lang('Dear')." ".stripslashes(api_get_person_name($firstname, $lastname)).",\n\n".sprintf(get_lang('YouAreRegisterToSessionX'), $session_name) ." \n\n" .get_lang('Address') ." ". get_setting('siteName') ." ". get_lang('Is') ." : ". api_get_path(WEB_PATH) ."\n\n". get_lang('Problem'). "\n\n". get_lang('Formula').",\n\n".get_setting('administratorName')." ".get_setting('administratorSurname')."\n". get_lang('Manager'). " ".get_setting('siteName')."\nT. ".get_setting('administratorTelephone')."\n" .get_lang('Email') ." : ".get_setting('emailAdministrator');
-
- @api_send_mail($emailto, $emailsubject, $emailbody, $emailheaders);
- }
- }
- }
- }
- foreach ($course_list as $enreg_course) {
- // for each course in the session
- $nbr_users=0;
- $enreg_course = Database::escape_string($enreg_course);
- // delete existing users
- if ($empty_users) {
- foreach ($existingUsers as $existing_user) {
- if (!in_array($existing_user, $user_list)) {
- $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND id_user='$existing_user' ";
- Database::query($sql);
- if (Database::affected_rows()) {
- $nbr_users--;
- }
- }
- }
- }
-
- // insert new users into session_rel_course_rel_user and ignore if they already exist
- foreach ($user_list as $enreg_user) {
- if(!in_array($enreg_user, $existingUsers)) {
- $enreg_user = Database::escape_string($enreg_user);
- $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user(id_session,course_code,id_user,visibility) VALUES('$id_session','$enreg_course','$enreg_user','$session_visibility')";
- Database::query($insert_sql);
- if(Database::affected_rows()) {
- $nbr_users++;
- }
- }
- }
- // count users in this session-course relation
- $sql = "SELECT COUNT(id_user) as nbUsers FROM $tbl_session_rel_course_rel_user WHERE id_session='$id_session' AND course_code='$enreg_course' AND status<>2";
- $rs = Database::query($sql);
- list($nbr_users) = Database::fetch_array($rs);
- // update the session-course relation to add the users total
- $update_sql = "UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'";
- Database::query($update_sql);
- }
- // Delete users from the session
- if ($empty_users===true) {
- Database::query("DELETE FROM $tbl_session_rel_user WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."");
- }
-
- // Insert missing users into session
- $nbr_users = 0;
- foreach ($user_list as $enreg_user) {
- $enreg_user = Database::escape_string($enreg_user);
- $nbr_users++;
- $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user (id_session, id_user) VALUES ('$id_session','$enreg_user')";
- Database::query($insert_sql);
- }
- // update number of users in the session
- $nbr_users = count($user_list);
- if ($empty_users) {
- // update number of users in the session
- $update_sql = "UPDATE $tbl_session SET nbr_users= $nbr_users WHERE id='$id_session' ";
- Database::query($update_sql);
- } else {
- echo $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users + $nbr_users WHERE id='$id_session' ";
- Database::query($update_sql);
- }
- }
- /**
- * Unsubscribe user from session
- *
- * @param int Session id
- * @param int User id
- * @return bool True in case of success, false in case of error
- */
- public static function unsubscribe_user_from_session($session_id, $user_id) {
- $session_id = (int)$session_id;
- $user_id = (int)$user_id;
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $delete_sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user ='$user_id' AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
- Database::query($delete_sql);
- $return = Database::affected_rows();
- // Update number of users
- $update_sql = "UPDATE $tbl_session SET nbr_users= nbr_users - $return WHERE id='$session_id' ";
- Database::query($update_sql);
- // Get the list of courses related to this session
- $course_list = SessionManager::get_course_list_by_session_id($session_id);
- if(!empty($course_list)) {
- foreach($course_list as $course) {
- $course_code = $course['code'];
- // Delete user from course
- Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session='$session_id' AND course_code='$course_code' AND id_user='$user_id'");
- if(Database::affected_rows()) {
- // Update number of users in this relation
- Database::query("UPDATE $tbl_session_rel_course SET nbr_users=nbr_users - 1 WHERE id_session='$session_id' AND course_code='$course_code'");
- }
- }
- }
- return true;
- }
- /** Subscribes courses to the given session and optionally (default) unsubscribes previous users
- * @author Carlos Vargas from existing code
- * @param int Session ID
- * @param array List of courses IDs
- * @param bool Whether to unsubscribe existing users (true, default) or not (false)
- * @return void Nothing, or false on error
- **/
- public static function add_courses_to_session ($id_session, $course_list, $empty_courses=true) {
- // security checks
- if ($id_session!= strval(intval($id_session))) { return false; }
- //foreach($course_list as $intCourse){
- // if ($intCourse!= strval(intval($intCourse))) { return false; }
- //}
- // initialisation
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
- // get general coach ID
- $id_coach = Database::query("SELECT id_coach FROM $tbl_session WHERE id=$id_session");
- $id_coach = Database::fetch_array($id_coach);
- $id_coach = $id_coach[0];
- // get list of courses subscribed to this session
- $rs = Database::query("SELECT course_code FROM $tbl_session_rel_course WHERE id_session=$id_session");
- $existingCourses = Database::store_result($rs);
- $nbr_courses=count($existingCourses);
- // get list of users subscribed to this session
- $sql="SELECT id_user
- FROM $tbl_session_rel_user
- WHERE id_session = $id_session AND relation_type<>".SESSION_RELATION_TYPE_RRHH."";
- $result=Database::query($sql);
- $user_list=Database::store_result($result);
- // remove existing courses from the session
- if ($empty_courses===true) {
- foreach ($existingCourses as $existingCourse) {
- if (!in_array($existingCourse['course_code'], $course_list)){
- Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
- Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='".$existingCourse['course_code']."' AND id_session=$id_session");
- }
- }
- $nbr_courses=0;
- }
- // Pass through the courses list we want to add to the session
- foreach ($course_list as $enreg_course) {
- $enreg_course = Database::escape_string($enreg_course);
- $exists = false;
- // check if the course we want to add is already subscribed
- foreach ($existingCourses as $existingCourse) {
- if ($enreg_course == $existingCourse['course_code']) {
- $exists=true;
- }
- }
- if (!$exists) {
- //if the course isn't subscribed yet
- $sql_insert_rel_course= "INSERT INTO $tbl_session_rel_course (id_session,course_code) VALUES ('$id_session','$enreg_course')";
- Database::query($sql_insert_rel_course);
- //We add the current course in the existing courses array, to avoid adding another time the current course
- $existingCourses[]=array('course_code'=>$enreg_course);
- $nbr_courses++;
- // subscribe all the users from the session to this course inside the session
- $nbr_users=0;
- foreach ($user_list as $enreg_user) {
- $enreg_user_id = Database::escape_string($enreg_user['id_user']);
- $sql_insert = "INSERT IGNORE INTO $tbl_session_rel_course_rel_user (id_session,course_code,id_user) VALUES ('$id_session','$enreg_course','$enreg_user_id')";
- Database::query($sql_insert);
- if (Database::affected_rows()) {
- $nbr_users++;
- }
- }
- Database::query("UPDATE $tbl_session_rel_course SET nbr_users=$nbr_users WHERE id_session='$id_session' AND course_code='$enreg_course'");
- }
- }
- Database::query("UPDATE $tbl_session SET nbr_courses=$nbr_courses WHERE id='$id_session'");
- }
- /**
- * Unsubscribe course from a session
- *
- * @param int Session id
- * @param int Course id
- * @return bool True in case of success, false otherwise
- */
- public static function unsubscribe_course_from_session($session_id, $course_id) {
- $session_id = (int)$session_id;
- $course_id = (int)$course_id;
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- // Get course code
- $course_code = CourseManager::get_course_code_from_course_id($course_id);
- if($course_code == 0) {
- return false;
- }
- // Unsubscribe course
- Database::query("DELETE FROM $tbl_session_rel_course WHERE course_code='$course_code' AND id_session='$session_id'");
- $nb_affected = Database::affected_rows();
- Database::query("DELETE FROM $tbl_session_rel_course_rel_user WHERE course_code='$course_code' AND id_session='$session_id'");
- if($nb_affected > 0) {
- // Update number of courses in the session
- Database::query("UPDATE $tbl_session SET nbr_courses= nbr_courses + $nb_affected WHERE id='$session_id' ");
- return true;
- } else {
- return false;
- }
- }
- /**
- * Creates a new extra field for a given session
- * @param string Field's internal variable name
- * @param int Field's type
- * @param string Field's language var name
- * @return int new extra field id
- */
- public static function create_session_extra_field ($fieldvarname, $fieldtype, $fieldtitle) {
- // database table definition
- $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
- $fieldvarname = Database::escape_string($fieldvarname);
- $fieldtitle = Database::escape_string($fieldtitle);
- $fieldtype = (int)$fieldtype;
- $time = time();
- $sql_field = "SELECT id FROM $t_sf WHERE field_variable = '$fieldvarname'";
- $res_field = Database::query($sql_field);
- $r_field = Database::fetch_row($res_field);
- if (Database::num_rows($res_field)>0) {
- $field_id = $r_field[0];
- } else {
- // save new fieldlabel into course_field table
- $sql = "SELECT MAX(field_order) FROM $t_sf";
- $res = Database::query($sql);
- $order = 0;
- if (Database::num_rows($res)>0) {
- $row = Database::fetch_row($res);
- $order = $row[0]+1;
- }
- $sql = "INSERT INTO $t_sf
- SET field_type = '$fieldtype',
- field_variable = '$fieldvarname',
- field_display_text = '$fieldtitle',
- field_order = '$order',
- tms = FROM_UNIXTIME($time)";
- $result = Database::query($sql);
- $field_id=Database::insert_id();
- }
- return $field_id;
- }
- /**
- * Update an extra field value for a given session
- * @param integer Course ID
- * @param string Field variable name
- * @param string Field value
- * @return boolean true if field updated, false otherwise
- */
- public static function update_session_extra_field_value ($session_id,$fname,$fvalue='') {
- $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
- $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
- $fname = Database::escape_string($fname);
- $session_id = (int)$session_id;
- $fvalues = '';
- if(is_array($fvalue))
- {
- foreach($fvalue as $val)
- {
- $fvalues .= Database::escape_string($val).';';
- }
- if(!empty($fvalues))
- {
- $fvalues = substr($fvalues,0,-1);
- }
- }
- else
- {
- $fvalues = Database::escape_string($fvalue);
- }
- $sqlsf = "SELECT * FROM $t_sf WHERE field_variable='$fname'";
- $ressf = Database::query($sqlsf);
- if(Database::num_rows($ressf)==1)
- { //ok, the field exists
- // Check if enumerated field, if the option is available
- $rowsf = Database::fetch_array($ressf);
- $tms = time();
- $sqlsfv = "SELECT * FROM $t_sfv WHERE session_id = '$session_id' AND field_id = '".$rowsf['id']."' ORDER BY id";
- $ressfv = Database::query($sqlsfv);
- $n = Database::num_rows($ressfv);
- if ($n>1) {
- //problem, we already have to values for this field and user combination - keep last one
- while($rowsfv = Database::fetch_array($ressfv))
- {
- if($n > 1)
- {
- $sqld = "DELETE FROM $t_sfv WHERE id = ".$rowsfv['id'];
- $resd = Database::query($sqld);
- $n--;
- }
- $rowsfv = Database::fetch_array($ressfv);
- if($rowsfv['field_value'] != $fvalues)
- {
- $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
- $resu = Database::query($sqlu);
- return($resu?true:false);
- }
- return true;
- }
- } else if ($n==1) {
- //we need to update the current record
- $rowsfv = Database::fetch_array($ressfv);
- if($rowsfv['field_value'] != $fvalues)
- {
- $sqlu = "UPDATE $t_sfv SET field_value = '$fvalues', tms = FROM_UNIXTIME($tms) WHERE id = ".$rowsfv['id'];
- //error_log('UM::update_extra_field_value: '.$sqlu);
- $resu = Database::query($sqlu);
- return($resu?true:false);
- }
- return true;
- } else {
- $sqli = "INSERT INTO $t_sfv (session_id,field_id,field_value,tms) " .
- "VALUES ('$session_id',".$rowsf['id'].",'$fvalues',FROM_UNIXTIME($tms))";
- //error_log('UM::update_extra_field_value: '.$sqli);
- $resi = Database::query($sqli);
- return($resi?true:false);
- }
- } else {
- return false; //field not found
- }
- }
- /**
- * Checks the relationship between a session and a course.
- * @param int $session_id
- * @param int $course_id
- * @return bool Returns TRUE if the session and the course are related, FALSE otherwise.
- * */
- public static function relation_session_course_exist ($session_id, $course_id) {
- $tbl_session_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
- $return_value = false;
- $sql= "SELECT course_code FROM $tbl_session_course WHERE id_session = ".Database::escape_string($session_id)." AND course_code = '".Database::escape_string($course_id)."'";
- $result = Database::query($sql);
- $num = Database::num_rows($result);
- if ($num>0) {
- $return_value = true;
- }
- return $return_value;
- }
- /**
- * Get the session information by name
- * @param string session name
- * @return mixed false if the session does not exist, array if the session exist
- * */
- public static function get_session_by_name ($session_name) {
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $sql = 'SELECT id, id_coach, date_start, date_end FROM '.$tbl_session.' WHERE name="'.Database::escape_string($session_name).'"';
- $result = Database::query($sql);
- $num = Database::num_rows($result);
- if ($num>0){
- return Database::fetch_array($result);
- } else {
- return false;
- }
- }
- /**
- * Create a session category
- * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
- * @param string name
- * @param integer year_start
- * @param integer month_start
- * @param integer day_start
- * @param integer year_end
- * @param integer month_end
- * @param integer day_end
- * @return $id_session;
- **/
- public static function create_category_session($sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $name= trim($sname);
- $year_start= intval($syear_start);
- $month_start=intval($smonth_start);
- $day_start=intval($sday_start);
- $year_end=intval($syear_end);
- $month_end=intval($smonth_end);
- $day_end=intval($sday_end);
- $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
- $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
- if (empty($name)) {
- $msg=get_lang('SessionCategoryNameIsRequired');
- return $msg;
- } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
- $msg=get_lang('InvalidStartDate');
- return $msg;
- } elseif (!$month_end && !$day_end && !$year_end) {
- $date_end = "null";
- } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
- $msg=get_lang('InvalidEndDate');
- return $msg;
- } elseif($date_start >= $date_end) {
- $msg=get_lang('StartDateShouldBeBeforeEndDate');
- return $msg;
- }
- $access_url_id = api_get_current_access_url_id();
- $sql = "INSERT INTO $tbl_session_category (name, date_start, date_end, access_url_id)
- VALUES('".Database::escape_string($name)."','$date_start','$date_end', '$access_url_id')";
- Database::query($sql);
- $id_session = Database::insert_id();
- // Add event to system log
- $user_id = api_get_user_id();
- event_system(LOG_SESSION_CATEGORY_CREATE, LOG_SESSION_CATEGORY_ID, $id_session, api_get_utc_datetime(), $user_id);
- return $id_session;
- }
- /**
- * Edit a sessions categories
- * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>,from existing code
- * @param integer id
- * @param string name
- * @param integer year_start
- * @param integer month_start
- * @param integer day_start
- * @param integer year_end
- * @param integer month_end
- * @param integer day_end
- * @return $id;
- * The parameter id is a primary key
- **/
- public static function edit_category_session($id, $sname,$syear_start,$smonth_start,$sday_start,$syear_end,$smonth_end, $sday_end){
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $name= trim($sname);
- $year_start= intval($syear_start);
- $month_start=intval($smonth_start);
- $day_start=intval($sday_start);
- $year_end=intval($syear_end);
- $month_end=intval($smonth_end);
- $day_end=intval($sday_end);
- $id=intval($id);
- $date_start = "$year_start-".(($month_start < 10)?"0$month_start":$month_start)."-".(($day_start < 10)?"0$day_start":$day_start);
- $date_end = "$year_end-".(($month_end < 10)?"0$month_end":$month_end)."-".(($day_end < 10)?"0$day_end":$day_end);
- if (empty($name)) {
- $msg=get_lang('SessionCategoryNameIsRequired');
- return $msg;
- } elseif (!$month_start || !$day_start || !$year_start || !checkdate($month_start,$day_start,$year_start)) {
- $msg=get_lang('InvalidStartDate');
- return $msg;
- } elseif (!$month_end && !$day_end && !$year_end) {
- $date_end = null;
- } elseif (!$month_end || !$day_end || !$year_end || !checkdate($month_end,$day_end,$year_end)) {
- $msg=get_lang('InvalidEndDate');
- return $msg;
- } elseif($date_start >= $date_end) {
- $msg=get_lang('StartDateShouldBeBeforeEndDate');
- return $msg;
- }
- if ( $date_end <> null ) {
- $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
- ", date_end = '$date_end' WHERE id= '".$id."' ";
- } else {
- $sql = "UPDATE $tbl_session_category SET name = '".Database::escape_string($name)."', date_start = '$date_start' ".
- ", date_end = NULL WHERE id= '".$id."' ";
- }
- $result = Database::query($sql);
- return ($result? true:false);
- }
- /**
- * Delete sessions categories
- * @author Jhon Hinojosa <jhon.hinojosa@dokeos.com>, from existing code
- * @param array id_checked
- * @param bool include delete session
- * @param bool optional, true if the function is called by a webservice, false otherwise.
- * @return void Nothing, or false on error
- * The parameters is a array to delete sessions
- **/
- public static function delete_session_category($id_checked, $delete_session = false,$from_ws = false){
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- if(is_array($id_checked)) {
- $id_checked=Database::escape_string(implode(',',$id_checked));
- } else {
- $id_checked=intval($id_checked);
- }
- $sql = "SELECT id FROM $tbl_session WHERE session_category_id IN (".$id_checked.")";
- $result = @Database::query($sql);
- while ($rows = Database::fetch_array($result)) {
- $session_id = $rows['id'];
- if ($delete_session) {
- if ($from_ws) {
- SessionManager::delete_session($session_id,true);
- } else {
- SessionManager::delete_session($session_id);
- }
- }
- }
- $sql = "DELETE FROM $tbl_session_category WHERE id IN (".$id_checked.")";
- $rs = @Database::query($sql);
- $result = Database::affected_rows();
- // Add event to system log
- $user_id = api_get_user_id();
- event_system(LOG_SESSION_CATEGORY_DELETE, LOG_SESSION_CATEGORY_ID, $id_checked, api_get_utc_datetime(), $user_id);
- // delete extra session fields where field variable is "PERIODO"
- $t_sf = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
- $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
- $sql = "SELECT t_sfv.field_id FROM $t_sfv t_sfv, $t_sf t_sf WHERE t_sfv.session_id = '$id_checked' AND t_sf.field_variable = 'PERIODO' ";
- $rs_field = Database::query($sql);
- $field_id = 0;
- if (Database::num_rows($rs_field) > 0) {
- $row_field = Database::fetch_row($rs_field);
- $field_id = $row_field[0];
- $sql_delete_sfv = "DELETE FROM $t_sfv WHERE session_id = '$id_checked' AND field_id = '$field_id'";
- $rs_delete_sfv = Database::query($sql_delete_sfv);
- }
- $sql = "SELECT * FROM $t_sfv WHERE field_id = '$field_id' ";
- $rs_field_id = Database::query($sql);
- if (Database::num_rows($rs_field_id) == 0) {
- $sql_delete_sf = "DELETE FROM $t_sf WHERE id = '$field_id'";
- $rs_delete_sf = Database::query($sql_delete_sf);
- }
- return true;
- }
- /**
- * Get a list of sessions of which the given conditions match with an = 'cond'
- * @param array $conditions a list of condition (exemple : array('status =' =>STUDENT) or array('s.name LIKE' => "%$needle%")
- * @param array $order_by a list of fields on which sort
- * @return array An array with all sessions of the platform.
- * @todo optional course code parameter, optional sorting parameters...
- */
- public static function get_sessions_list($conditions = array(), $order_by = array()) {
- $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
- $session_category_table = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $user_table = Database::get_main_table(TABLE_MAIN_USER);
- $table_access_url_rel_session = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
-
- $access_url_id = api_get_current_access_url_id();
-
- $return_array = array();
- $sql_query = " SELECT s.id, s.name, s.nbr_courses, s.date_start, s.date_end, u.firstname, u.lastname, sc.name as category_name, s.promotion_id
- FROM $session_table s
- INNER JOIN $user_table u ON s.id_coach = u.user_id
- INNER JOIN $table_access_url_rel_session ar ON ar.session_id = s.id
- LEFT JOIN $session_category_table sc ON s.session_category_id = sc.id
- WHERE ar.access_url_id = $access_url_id ";
-
- if (count($conditions)>0) {
- $sql_query .= ' AND ';
- foreach ($conditions as $field=>$value) {
- $field = Database::escape_string($field);
- $value = Database::escape_string($value);
- $sql_query .= $field." '".$value."'";
- }
- }
- if (count($order_by)>0) {
- $sql_query .= ' ORDER BY '.Database::escape_string(implode(',',$order_by));
- }
- //echo $sql_query;
- $sql_result = Database::query($sql_query);
- if (Database::num_rows($sql_result)>0) {
- while ($result = Database::fetch_array($sql_result)) {
- $return_array[$result['id']] = $result;
- }
- }
- return $return_array;
- }
-
- /**
- * Get the session category information by id
- * @param string session category ID
- * @return mixed false if the session category does not exist, array if the session category exists
- */
- public static function get_session_category ($id) {
- $id = intval($id);
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $sql = 'SELECT id, name, date_start, date_end FROM '.$tbl_session_category.' WHERE id="'.$id.'"';
- $result = Database::query($sql);
- $num = Database::num_rows($result);
- if ($num>0){
- return Database::fetch_array($result);
- } else {
- return false;
- }
- }
-
- /**
- * Get all session categories (filter by access_url_id)
- * @return mixed false if the session category does not exist, array if the session category exists
- */
- public static function get_all_session_category() {
- $tbl_session_category = Database::get_main_table(TABLE_MAIN_SESSION_CATEGORY);
- $id = api_get_current_access_url_id();
- $sql = 'SELECT * FROM '.$tbl_session_category.' WHERE access_url_id ="'.$id.'" ORDER BY name ASC';
- $result = Database::query($sql);
- if (Database::num_rows($result) > 0 ){
- $data = Database::store_result($result,'ASSOC');
- return $data;
- } else {
- return false;
- }
- }
- /**
- * Assign a coach to course in session with status = 2
- * @param int - user id
- * @param int - session id
- * @param string - course code
- * @param bool - optional, if is true the user don't be a coach now, otherwise it'll assign a coach
- * @return bool true if there are affected rows, otherwise false
- */
- public static function set_coach_to_course_session($user_id, $session_id = 0, $course_code = '',$nocoach = false) {
- // Definition of variables
- $user_id = intval($user_id);
- if (!empty($session_id)) {
- $session_id = intval($session_id);
- } else {
- $session_id = api_get_session_id();
- }
- if (!empty($course_code)) {
- $course_code = Database::escape_string($course_code);
- } else {
- $course_code = api_get_course_id();
- }
- // definitios of tables
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- // check if user is a teacher
- $sql= "SELECT * FROM $tbl_user WHERE status='1' AND user_id = '$user_id'";
- $rs_check_user = Database::query($sql);
- if (Database::num_rows($rs_check_user) > 0) {
- if ($nocoach) {
- // check if user_id exits int session_rel_user
- $sql = "SELECT id_user FROM $tbl_session_rel_user WHERE id_session = '$session_id' AND id_user = '$user_id'";
- $res = Database::query($sql);
- if (Database::num_rows($res) > 0) {
- // The user don't be a coach now
- $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 0 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
- $rs_update = Database::query($sql);
- if (Database::affected_rows() > 0) return true;
- else return false;
- } else {
- // The user don't be a coach now
- $sql = "DELETE FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
- $rs_delete = Database::query($sql);
- if (Database::affected_rows() > 0) return true;
- else return false;
- }
- } else {
- // Assign user like a coach to course
- // First check if the user is registered in the course
- $sql = "SELECT id_user FROM $tbl_session_rel_course_rel_user WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id'";
- $rs_check = Database::query($sql);
- //Then update or insert
- if (Database::num_rows($rs_check) > 0) {
- $sql = "UPDATE $tbl_session_rel_course_rel_user SET status = 2 WHERE id_session = '$session_id' AND course_code = '$course_code' AND id_user = '$user_id' ";
- $rs_update = Database::query($sql);
- if (Database::affected_rows() > 0) return true;
- else return false;
- } else {
- $sql = " INSERT INTO $tbl_session_rel_course_rel_user(id_session, course_code, id_user, status) VALUES('$session_id', '$course_code', '$user_id', 2)";
- $rs_insert = Database::query($sql);
- if (Database::affected_rows() > 0) return true;
- else return false;
- }
- }
- } else {
- return false;
- }
- }
- /**
- * Subscribes sessions to human resource manager (Dashboard feature)
- * @param int Human Resource Manager id
- * @param array Sessions id
- * @param int Relation type
- **/
- public static function suscribe_sessions_to_hr_manager($hr_manager_id,$sessions_list) {
- global $_configuration;
- // Database Table Definitions
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_session_rel_course_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
- $hr_manager_id = intval($hr_manager_id);
- $affected_rows = 0;
- //Deleting assigned sessions to hrm_id
- if ($_configuration['multiple_access_urls']) {
- $sql = "SELECT id_session FROM $tbl_session_rel_user s INNER JOIN $tbl_session_rel_access_url a ON (a.session_id = s.id_session) WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." AND access_url_id = ".api_get_current_access_url_id()."";
- } else {
- $sql = "SELECT id_session FROM $tbl_session_rel_user s WHERE id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH."";
- }
- $result = Database::query($sql);
- if (Database::num_rows($result) > 0) {
- while ($row = Database::fetch_array($result)) {
- $sql = "DELETE FROM $tbl_session_rel_user WHERE id_session = {$row['id_session']} AND id_user = $hr_manager_id AND relation_type=".SESSION_RELATION_TYPE_RRHH." ";
- Database::query($sql);
- }
- }
- /*
- //Deleting assigned courses in sessions to hrm_id
- $sql = "SELECT * FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
- $result = Database::query($sql);
- if (Database::num_rows($result) > 0) {
- $sql = "DELETE FROM $tbl_session_rel_course_user WHERE id_user = $hr_manager_id ";
- Database::query($sql);
- }
- */
- // inserting new sessions list
- if (is_array($sessions_list)) {
- foreach ($sessions_list as $session_id) {
- $session_id = intval($session_id);
- $insert_sql = "INSERT IGNORE INTO $tbl_session_rel_user(id_session, id_user, relation_type) VALUES($session_id, $hr_manager_id, '".SESSION_RELATION_TYPE_RRHH."')";
- Database::query($insert_sql);
- $affected_rows = Database::affected_rows();
- }
- }
- return $affected_rows;
- }
- /**
- * Get sessions followed by human resources manager
- * @param int Human resources manager or Session admin id
- * @return array sessions
- */
- public static function get_sessions_followed_by_drh($hr_manager_id) {
- global $_configuration;
- // Database Table Definitions
- $tbl_session = Database::get_main_table(TABLE_MAIN_SESSION);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $tbl_session_rel_access_url = Database::get_main_table(TABLE_MAIN_ACCESS_URL_REL_SESSION);
- $hr_manager_id = intval($hr_manager_id);
- $assigned_sessions_to_hrm = array();
- if ($_configuration['multiple_access_urls']) {
- $sql = "SELECT * FROM $tbl_session s INNER JOIN $tbl_session_rel_user sru ON (sru.id_session = s.id) LEFT JOIN $tbl_session_rel_access_url a ON (s.id = a.session_id)
- WHERE sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' AND access_url_id = ".api_get_current_access_url_id()."";
- } else {
- $sql = "SELECT * FROM $tbl_session s
- INNER JOIN $tbl_session_rel_user sru ON sru.id_session = s.id AND sru.id_user = '$hr_manager_id' AND sru.relation_type = '".SESSION_RELATION_TYPE_RRHH."' ";
- }
- $rs_assigned_sessions = Database::query($sql);
- if (Database::num_rows($rs_assigned_sessions) > 0) {
- while ($row_assigned_sessions = Database::fetch_array($rs_assigned_sessions)) {
- $assigned_sessions_to_hrm[$row_assigned_sessions['id']] = $row_assigned_sessions;
- }
- }
- return $assigned_sessions_to_hrm;
- }
-
- /**
- * Gets the list of courses by session filtered by access_url
- * @param int session id
- * @return array list of courses
- */
- public static function get_course_list_by_session_id ($session_id) {
- $tbl_course = Database::get_main_table(TABLE_MAIN_COURSE);
- $tbl_session_rel_course = Database::get_main_table(TABLE_MAIN_SESSION_COURSE);
-
- // select the courses
- $sql = "SELECT * FROM $tbl_course c INNER JOIN $tbl_session_rel_course src ON c.code = src.course_code
- WHERE src.id_session = '$session_id' ORDER BY title;";
- $result = Database::query($sql);
- $num_rows = Database::num_rows($result);
- $courses = array();
- if ($num_rows > 0) {
- while ($row = Database::fetch_array($result,'ASSOC')) {
- $courses[$row['id']] = $row;
- }
- }
- return $courses;
- }
- /**
- * Get the session id based on the original id and field name in the extra fields. Returns 0 if session was not found
- *
- * @param string Original session id
- * @param string Original field name
- * @return int Session id
- */
- public static function get_session_id_from_original_id($original_session_id_value, $original_session_id_name) {
- $t_sfv = Database::get_main_table(TABLE_MAIN_SESSION_FIELD_VALUES);
- $table_field = Database::get_main_table(TABLE_MAIN_SESSION_FIELD);
- $sql_session = "SELECT session_id FROM $table_field sf INNER JOIN $t_sfv sfv ON sfv.field_id=sf.id WHERE field_variable='$original_session_id_name' AND field_value='$original_session_id_value'";
- $res_session = Database::query($sql_session);
- $row = Database::fetch_object($res_session);
- if ($row) {
- return $row->session_id;
- } else {
- return 0;
- }
- }
-
- /**
- * Get users by session
- * @param int sesssion id
- * @param int filter by status
- * @return array a list with an user list
- */
- public static function get_users_by_session($id, $with_status = false) {
- if (empty($id)) {
- return array();
- }
- $id = intval($id);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $tbl_session_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_USER);
- $sql = 'SELECT '.$tbl_user.'.user_id, lastname, firstname, username
- FROM '.$tbl_user.'
- INNER JOIN '.$tbl_session_rel_user.'
- ON '.$tbl_user.'.user_id = '.$tbl_session_rel_user.'.id_user
- AND '.$tbl_session_rel_user.'.id_session = '.$id;
- if ($with_status !== false) {
- $with_status = intval($with_status);
- $sql .= " WHERE relation_type = $with_status ";
- }
- $result = Database::query($sql);
- while ($row = Database::fetch_array($result,'ASSOC')) {
- $return_array[] = $row;
- }
-
- return $return_array;
- }
-
- public static function get_sessions_by_coach($user_id) {
- $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
- return Database::select('*', $session_table, array('where'=>array('id_coach = ?'=>$user_id)));
- }
-
- /*
- public static function get_coaches_by_session($session_id, $course_code) {
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
-
- $sql = "SELECT user.user_id
- FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
- WHERE session_rcru.id_user = user.user_id AND
- session_rcru.id_session = '".intval($session_id)."' AND
- session_rcru.course_code ='".Database::escape_string($course_code)."' AND
- session_rcru.status = 2 ";
- $result = Database::query($sql);
- while ($row = Database::fetch_array($result,'ASSOC')) {
- $return_array[] = $row;
- }
- return $return_array;
- }*/
-
- /**
- * Gets user status within a session
- * @param $user_id
- * @param $course_code
- * @param $session_id
- * @return unknown_type
- */
- public function get_user_status_in_session($user_id, $course_code, $session_id) {
- $tbl_session_rel_course_rel_user = Database::get_main_table(TABLE_MAIN_SESSION_COURSE_USER);
- $tbl_user = Database::get_main_table(TABLE_MAIN_USER);
- $sql = "SELECT session_rcru.status
- FROM $tbl_session_rel_course_rel_user session_rcru, $tbl_user user
- WHERE session_rcru.id_user = user.user_id AND
- session_rcru.id_session = '".intval($session_id)."' AND
- session_rcru.course_code ='".Database::escape_string($course_code)."' AND
- user.user_id = ".intval($user_id);
- $result = Database::query($sql);
- $status = false;
- if (Database::num_rows($result)) {
- $status = Database::fetch_row($result);
- $status = $status['0'];
- }
- return $status;
- }
-
-
- public static function get_session_by_user($coach_id, $user_id) {
-
- }
-
- function get_all_sessions_by_promotion($id) {
- $t = Database::get_main_table(TABLE_MAIN_SESSION);
- return Database::select('*', $t, array('where'=>array('promotion_id = ?'=>$id)));
- }
-
- function suscribe_sessions_to_promotion($promotion_id, $list) {
- $t = Database::get_main_table(TABLE_MAIN_SESSION);
- $params['promotion_id'] = 0;
- Database::update($t, $params, array('promotion_id = ?'=>$promotion_id));
-
- $params['promotion_id'] = $promotion_id;
- if (!empty($list)) {
- foreach ($list as $session_id) {
- $session_id= intval($session_id);
- Database::update($t, $params, array('id = ?'=>$session_id));
- }
- }
- }
-
- /**
- * Updates a session status
- * @param int session id
- * @param int status
- */
- public function set_session_status($session_id, $status) {
- $t = Database::get_main_table(TABLE_MAIN_SESSION);
- $params['visibility'] = $status;
- Database::update($t, $params, array('id = ?'=>$session_id));
- }
-
- /**
- * Copies a session with the same data to a new session.
- * The new copy is not assigned to the same promotion. @see suscribe_sessions_to_promotions() for that
- * @param int Session ID
- * @param bool Whether to copy the relationship with courses
- * @param bool Whether to copy the relationship with users
- * @param bool New courses will be created
- * @return int The new session ID on success, 0 otherwise
- * @todo make sure the extra session fields are copied too
- */
- /**
- * @param $id
- * @param $copy_courses
- * @param $copy_users
- * @param $create_new_courses
- * @param $set_exercises_lp_invisible
- * @return unknown_type
- */
- public function copy_session($id, $copy_courses = true, $copy_users = true, $create_new_courses = false, $set_exercises_lp_invisible = false) {
- $id = intval($id);
- $s = self::fetch($id);
- $s['year_start'] = substr($s['date_start'],0,4);
- $s['month_start'] = substr($s['date_start'],5,2);
- $s['day_start'] = substr($s['date_start'],8,2);
- $s['year_end'] = substr($s['date_end'],0,4);
- $s['month_end'] = substr($s['date_end'],5,2);
- $s['day_end'] = substr($s['date_end'],8,2);
- $consider_start = true;
- if ($s['year_start'].'-'.$s['month_start'].'-'.$s['day_start'] == '0000-00-00') {
- $consider_start = false;
- }
- $consider_end = true;
- if ($s['year_end'].'-'.$s['month_end'].'-'.$s['day_end'] == '0000-00-00') {
- $consider_end = false;
- }
-
- $sid = self::create_session($s['name'].' '.get_lang('Copy'),
- $s['year_start'], $s['month_start'], $s['day_start'],
- $s['year_end'],$s['month_end'],$s['day_end'],
- $s['nb_days_acess_before_beginning'],$s['nb_days_acess_after_end'],
- false,(int)$s['id_coach'], $s['session_category_id'],
- (int)$s['visibility'],$consider_start, $consider_end, true);
-
- if (!is_numeric($sid) || empty($sid)) {
- return false;
- }
-
- if ($copy_courses) {
- // Register courses from the original session to the new session
- $courses = self::get_course_list_by_session_id($id);
-
- $short_courses = $new_short_courses = array();
- if (is_array($courses) && count($courses)>0) {
- foreach ($courses as $course) {
- $short_courses[] = $course;
- }
- }
- $courses = null;
-
- //We will copy the current courses of the session to new courses
- if (!empty($short_courses)) {
- if ($create_new_courses) {
- //Just in case
- if (function_exists('ini_set')) {
- ini_set('memory_limit','256M');
- ini_set('max_execution_time',0);
- }
- $params = array();
- $params['skip_lp_dates'] = true;
-
- foreach ($short_courses as $course_data) {
- $course_info = CourseManager::copy_course_simple($course_data['title'].' '.get_lang('Copy'), $course_data['course_code'], $id, $sid, $params);
- if ($course_info) {
- //By default new elements are invisible
- if ($set_exercises_lp_invisible) {
- require_once api_get_path(SYS_CODE_PATH).'newscorm/learnpathList.class.php';
- $list = new LearnpathList('', $course_info['code'], $sid);
- $flat_list = $list->get_flat_list();
- if (!empty($flat_list)) {
- foreach($flat_list as $lp_id => $data) {
- api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0, $sid);
- api_item_property_update($course_info, TOOL_LEARNPATH, $lp_id, 'invisible', api_get_user_id(), 0 ,0, 0, 0);
- }
- }
- $quiz_table = Database::get_course_table(TABLE_QUIZ_TEST);
- $course_id = $course_info['real_id'];
- //@todo check this query
- $sql = "UPDATE $quiz_table SET active = 0 WHERE c_id = $course_id ";
- $result=Database::query($sql);
- }
- $new_short_courses[] = $course_info['code'];
- }
- }
- } else {
- foreach($short_courses as $course_data) {
- $new_short_courses[] = $course_data['code'];
- }
- }
- $short_courses = $new_short_courses;
- $res = self::add_courses_to_session($sid, $short_courses, true);
- $short_courses = null;
- }
- }
- if ($copy_users) {
- // Register users from the original session to the new session
- $users = self::get_users_by_session($id);
- $short_users = array();
- if (is_array($users) && count($users)>0) {
- foreach ($users as $user) {
- $short_users[] = $user['user_id'];
- }
- }
- $users = null;
- //Subscribing in read only mode
- $res = self::suscribe_users_to_session($sid, $short_users, SESSION_VISIBLE_READ_ONLY, true, false);
- $short_users = null;
- }
- return $sid;
- }
-
- function user_is_general_coach($user_id, $session_id) {
- $session_id = intval($session_id);
- $user_id = intval($user_id);
- $session_table = Database::get_main_table(TABLE_MAIN_SESSION);
- $sql = "SELECT DISTINCT id
- FROM $session_table
- WHERE session.id_coach = '".$user_id."' AND id = '$session_id'";
- $result = Database::query($sql);
- if ($result && Database::num_rows($result)) {
- return true;
- }
- return false;
- }
- }
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