public function modify_return()
 {
     $record = RegisterRecord::find(Input::get('record_id'));
     // 是否存在该记录
     if (!isset($record)) {
         return Response::json(array('error_code' => 2, 'message' => '不存在该挂号记录'));
     }
     // 检查该就诊记录是否该医生的
     if ($record->doctor_id != Session::get('doctor.id')) {
         return Response::json(array('error_code' => 3, 'message' => '无法修改该挂号'));
     }
     // 检查就诊状态
     if (!(int) $record->status) {
         return Response::json(array('error_code' => 4, 'message' => '尚未就诊'));
     }
     $record->return_date = Input::get('date');
     $record->status = 2;
     // 修改状态 --> 2 - 需复诊
     if (!$record->save()) {
         return Response::json(array('error_code' => 1, 'message' => '设置失败'));
     }
     // 通过微信公众号向永华发送模板消息
     if (isset($weixin_pay_order) && $weixin_pay_order->status == 'FINISHED') {
         $doctor = $record->doctor;
         WeixinSDK::send_template_message(['touser' => $weixin_pay_order->open_id, 'template_id' => Config::get('weixin.template.return'), 'topcolor' => '#FF00000', 'data' => array('first' => ['value' => '您好,您的复诊时间已到,请及时进行复诊。'], 'keyword1' => ['value' => $record->account->name], 'keyword2' => ['value' => $doctor->department->hospital->name], 'keyword3' => ['value' => $doctor->name], 'keyword4' => ['value' => $record->return_date], 'remark' => ['value' => '祝您身体健康!'])]);
     }
     return Response::json(array('error_code' => 0, 'message' => '设置成功', 'return_date' => $record->return_date));
 }