} elseif (isset($_GET['set_course_only']) && eF_checkParameter($_GET['set_course_only'], 'id')) { //The administrator asked to activate a lesson if (isset($currentUser->coreAccess['lessons']) && $currentUser->coreAccess['lessons'] != 'change') { echo urlencode(_UNAUTHORIZEDACCESS); exit; } try { $lesson = new EfrontLesson($_GET['set_course_only']); $result = eF_getTableData("users_to_lessons", "count(*)", "lessons_ID={$_GET['set_course_only']} and archive=0"); if ($result[0]['count(*)'] > 0) { throw new Exception(_THISLESSONHASUSERSENROLLEDPLEASEREMOVEBEFORESWITCHINGMODE); } $lesson->lesson['course_only'] = 1; if (G_VERSIONTYPE == 'educational') { #cpp#ifdef EDUCATIONAL $lesson->deleteLessonSkill(); } #cpp#endif $lesson->persist(); echo "1"; } catch (Exception $e) { handleAjaxExceptions($e); } exit; } elseif (isset($_GET['add_lesson']) || isset($_GET['edit_lesson']) && eF_checkParameter($_GET['edit_lesson'], 'id')) { //The administrator asked to add or edit a lesson //Set the form post target in correspondance to the current function we are performing if (isset($_GET['add_lesson'])) { $post_target = 'add_lesson=1'; } else { $post_target = 'edit_lesson=' . $_GET['edit_lesson'];