public function cataloguesubscribeusersTask()
 {
     require_once _adm_ . '/lib/lib.directory.php';
     require_once _adm_ . '/class.module/class.directory.php';
     require_once _lms_ . '/lib/lib.course.php';
     require_once _lms_ . '/lib/lib.edition.php';
     require_once _lms_ . '/lib/lib.date.php';
     $acl_man =& Docebo::user()->getAclManager();
     $edition_man = new EditionManager();
     $date_man = new DateManager();
     $id_catalogue = Get::req('id_catalogue', DOTY_INT, 0);
     $back_url = 'index.php?modname=catalogue&op=catlist&of_platform=lms';
     $jump_url = 'index.php?r=' . $this->link . '/cataloguesubscribeusers';
     //if we are a subadmin, check which courses/catalogues we can see
     $can_see_catalogue = true;
     if (Docebo::user()->getUserLevelId() != ADMIN_GROUP_GODADMIN) {
         require_once _base_ . '/lib/lib.preference.php';
         $adminManager = new AdminPreference();
         $admin_courses = $adminManager->getAdminCourse(Docebo::user()->getIdST());
         $all_courses = false;
         if (isset($admin_courses['course'][0])) {
             $all_courses = true;
         }
         if (isset($admin_courses['course'][-1])) {
             require_once _lms_ . '/lib/lib.catalogue.php';
             $cat_man = new Catalogue_Manager();
             $admin_courses['catalogue'] = $cat_man->getUserAllCatalogueId(Docebo::user()->getIdSt());
             if (count($admin_courses['catalogue']) == 0 && Get::sett('on_catalogue_empty', 'off') == 'on') {
                 $all_courses = true;
             }
         }
         if (!isset($admin_courses['catalogue'][$id_catalogue])) {
             $can_see_catalogue = false;
         }
     }
     //invalid specified catalogue
     if ($id_catalogue <= 0 || !$can_see_catalogue) {
         $this->render('invalid', array('message' => Lang::t('_INVALID_CATALOGUE', 'subscribe'), 'back_url' => $back_url));
         return;
     }
     //check if the selected catalogue has any courses
     $courses_list = $this->_getCatalogueCourses($id_catalogue, isset($admin_courses['course']) ? $admin_courses['course'] : false);
     if (count($courses_list) <= 0) {
         $this->render('invalid', array('message' => Lang::t('_NO_COURSES_IN_THE_CATALOGUE', 'subscribe'), 'back_url' => $back_url));
         return;
     }
     $name = $this->_getCatalogueName($id_catalogue);
     if (isset($_POST['cancelselector'])) {
         //--- UNDO: return to catalogue list -------------------------------------
         Util::jump_to($back_url);
     } elseif (isset($_POST['okselector'])) {
         //--- USERS SELECTION IS CONFIRMED: now select editions (if any) ---------
         //check user selection
         $_selector = new UserSelector();
         $json = new Services_JSON();
         $_entity_selected = $_selector->getSelection($_POST);
         $user_selected =& $acl_man->getAllUsersFromSelection($_entity_selected);
         //free some memory from garbage variables
         unset($_selector);
         unset($_entity_selected);
         //if no user selected, than give invalid screen
         if (!is_array($user_selected) || count($user_selected) <= 0) {
             $this->render('invalid', array('message' => Lang::t('_EMPTY_SELECTION', 'subscribe'), 'back_url' => $back_url));
             return;
         }
         //extract editions info data by courses
         $editions_list = $edition_man->getEditionsInfoByCourses(array_keys($courses_list), true);
         //extract editions info data by courses
         $classrooms_list = $date_man->getDatesInfoByCourses(array_keys($courses_list), true);
         $tables = array('editions' => false, 'classrooms' => false);
         //check if the catalogue has editions; if any, than set the editions selector
         if (count($editions_list) > 0 || count($classrooms_list) > 0) {
             //set title
             $page_title_arr = array($back_url => Lang::t('_SUBSCRIBE', 'subscribe'), $name, Lang::t('_SUBSCRIBE', 'subscribe'));
             if (count($editions_list) > 0) {
                 //instantiate a new table for editions selection
                 require_once _base_ . '/lib/lib.table.php';
                 $tb = new Table(0, Lang::t('_CATALOGUE_SUBSCRIBE_CHOOSE_EDITIONS', 'subscribe'), Lang::t('_CATALOGUE_SUBSCRIBE_CHOOSE_EDITIONS', 'subscribe'));
                 $head_style = array('align_center', '', 'align_center');
                 $head_label = array(Lang::t('_COURSE_CODE', 'course'), Lang::t('_COURSE_NAME', 'course'), Lang::t('_CLASSROOM_EDITION', 'course'));
                 $tb->addHead($head_label, $head_style);
                 //set table rows
                 foreach ($editions_list as $id_course => $editions) {
                     $line = array();
                     $cinfo = $courses_list[$id_course];
                     $line[] = $cinfo->code;
                     $line[] = $cinfo->name;
                     //create the dropdown with the editions for every course
                     $_dropdown = array();
                     foreach ($editions as $id_edition => $ed_info) {
                         $_line_content = '';
                         //print begin and end date
                         if ($ed_info->date_begin != '') {
                             $_line_content .= '[' . $ed_info->code . '] ' . $ed_info->name . ' ' . '(' . Format::date($ed_info->date_begin, 'date') . ' - ' . Format::date($ed_info->date_end, 'date') . ')';
                         }
                         //check if the string is valid
                         if ($_line_content == '') {
                             //...
                         }
                         //add to dropdown list and sort the list alphabetically
                         $_dropdown[$id_edition] = $_line_content;
                         asort($_dropdown);
                     }
                     $line[] = Form::getInputDropdown('dropdown', 'sel_editions_' . $id_course, 'sel_editions[' . $id_course . ']', $_dropdown, false, '');
                     $tb->addBody($line);
                 }
                 $tables['editions'] = $tb;
             }
             if (count($classrooms_list) > 0) {
                 //instantiate a new table for editions selection
                 require_once _base_ . '/lib/lib.table.php';
                 $tb = new Table(0, Lang::t('_COURSE_TYPE_EDITION', 'course'), Lang::t('_CLASSROOM', 'standard'));
                 $head_style = array('align_center', '', 'align_center');
                 $head_label = array(Lang::t('_COURSE_CODE', 'course'), Lang::t('_COURSE_NAME', 'course'), Lang::t('_CLASSROOM_EDITION', 'course'));
                 $tb->addHead($head_label, $head_style);
                 //set table rows
                 foreach ($classrooms_list as $id_course => $classrooms) {
                     $line = array();
                     $cinfo = $courses_list[$id_course];
                     $line[] = $cinfo->code;
                     $line[] = $cinfo->name;
                     //create the dropdown with the editions for every course
                     $_dropdown = array();
                     foreach ($classrooms as $id_date => $cl_info) {
                         $_line_content = '';
                         //print begin and end date
                         if ($cl_info->date_begin != '') {
                             $_line_content .= '[' . $cl_info->code . '] ' . $cl_info->name . ' ' . '(' . Format::date($cl_info->date_begin, 'date') . ' - ' . Format::date($cl_info->date_end, 'date') . ')';
                         }
                         //check if the string is valid
                         if ($_line_content == '') {
                             //...
                         }
                         //add to dropdown list and sort the list alphabetically
                         $_dropdown[$id_date] = $_line_content;
                         asort($_dropdown);
                     }
                     $line[] = Form::getInputDropdown('dropdown', 'sel_classrooms_' . $id_course, 'sel_classrooms[' . $id_course . ']', $_dropdown, false, '');
                     $tb->addBody($line);
                 }
                 $tables['classrooms'] = $tb;
             }
             $this->render('catalogue_editions', array('id_catalogue' => $id_catalogue, 'page_title_arr' => $page_title_arr, 'num_users_selected' => count($user_selected), '_sel_users' => $json->encode($user_selected), 'tables' => $tables));
         } else {
             //no editions in the catalogue's courses, call the save operation directly
             $data = array();
             foreach ($user_selected as $user) {
                 foreach ($courses_list as $idCourse => $course) {
                     $data[] = array($user, $idCourse, false, false);
                 }
             }
             $num_subscribed = $this->_subscribeUsersToCatalogue($data);
             Util::jump_to($back_url . '&res=' . $num_subscribed);
             //_operation_successful
         }
     } else {
         //--- USER SELECTION IS IN PROGRESS: show selector -----------------------
         $user_select = new UserSelector();
         $user_select->show_user_selector = TRUE;
         $user_select->show_group_selector = TRUE;
         $user_select->show_orgchart_selector = TRUE;
         //$user_select->show_orgchart_simple_selector = TRUE;
         //filter selectable user by sub-admin permission
         $user_select->setUserFilter('exclude', array($this->acl_man->getAnonymousId()));
         if (Docebo::user()->getUserLevelId() != ADMIN_GROUP_GODADMIN) {
             require_once _base_ . '/lib/lib.preference.php';
             $adminManager = new AdminPreference();
             $admin_tree = $adminManager->getAdminTree(Docebo::user()->getIdST());
             $admin_users = $this->acl_man->getAllUsersFromIdst($admin_tree);
             $user_select->setUserFilter('user', $admin_users);
             $user_select->setUserFilter('group', $admin_tree);
         }
         if (Get::req('is_updating', DOTY_INT, false)) {
             //...
         } else {
             $user_select->requested_tab = PEOPLEVIEW_TAB;
             $user_select->resetSelection();
         }
         $page_title_arr = array($back_url => Lang::t('_SUBSCRIBE', 'subscribe'), $name, Lang::t('_SUBSCRIBE', 'subscribe'));
         $user_select->addFormInfo(Form::getHidden('is_updating', 'is_updating', 1) . Form::getHidden('id_catalogue', 'id_catalogue', $id_catalogue));
         //$user_select->setPageTitle($page_title_arr);
         //$user_select->resetSelection($_SESSION['report_tempdata']['rows_filter']['users']);
         $user_select->loadSelector(Util::str_replace_once('&', '&amp;', $jump_url), $page_title_arr, false, true);
     }
 }