public function updateStudentTuitions($classId, $tuitions) { try { $tId = session('instId'); $sts = explode('|', $tuitions); $class = new \Home\Model\ClassModel(); $class->startTrans(); for ($i = 0; $i < count($sts); $i++) { $st = explode(':', $sts[$i]); $class->updateStudentTuitionForClass($tId, (int) $classId, (int) $st[0], (int) $st[1] * 100); $class->updateStudentTuitionForClassDetailAndStudentRela($tId, (int) $classId, (int) $st[0], (int) $st[1] * 100); } $class->commit(); $data = "true"; } catch (Exception $e) { $class->rollback(); $data = "false"; } $this->ajaxReturn($data); }