chamilo / chamilo-lms

                            $teachersToDelete = array_diff(array_keys($alreadyAddedTeachers), $teachers);

                        }

                        if (!empty($teachersToDelete)) {

                            foreach ($teachersToDelete as $userId) {

                                if ($logger) {

                                    $logger->addInfo("Delete coach #$userId in session #$sessionId of course #$courseId ");

                                }

                                SessionManager::set_coach_to_course_session(

                                    $userId,

                                    $sessionId,

                                    $courseId,

                                    true

                                );

                            }

                        }

                    } else {

                        // Add new teachers only

                        foreach ($teachers as $userId) {

                                );

                            }

                        }

                    } else {

                        // Add new teachers only

                        foreach ($teachers as $userId) {

                            if ($logger) {

                                $logger->addInfo("Add coach #$userId in session #$sessionId of course #$courseId ");

                            }

                            SessionManager::set_coach_to_course_session(

                                $userId,

                                $sessionId,

                                $courseId

                            );

                        }

                    }

                }

            }

        }