Add checkin count in attendance and event api

Signed-off-by: Asai Neko <sugar@sne.moe>

service/service_event/get_event_info.go

@@ -45,6 +45,27 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 		return
 	}
 
+	checkinCount, err := new(data.Attendance).CountCheckedInUsersByEventID(payload.Context, payload.Data.EventId)
+	if err != nil {
+		exception := new(exception.Builder).
+			SetStatus(exception.StatusUser).
+			SetService(exception.ServiceEvent).
+			SetEndpoint(exception.EndpointEventServiceInfo).
+			SetType(exception.TypeCommon).
+			SetOriginal(exception.CommonErrorDatabase).
+			SetError(err).
+			Throw(payload.Context)
+
+		result = &EventInfoResult{
+			Common: shared.CommonResult{
+				HttpCode:  500,
+				Exception: exception,
+			},
+		}
+
+		return
+	}
+
 	result = &EventInfoResult{
 		Common: shared.CommonResult{
 			HttpCode: 200,
@@ -57,13 +78,14 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 				Throw(payload.Context),
 		},
 		Data: &data.EventIndexDoc{
-			EventId:     event.EventId.String(),
-			Name:        event.Name,
-			Type:        event.Type,
-			Description: event.Description,
-			StartTime:   event.StartTime,
-			EndTime:     event.EndTime,
-			Thumbnail:   event.Thumbnail,
+			EventId:      event.EventId.String(),
+			Name:         event.Name,
+			Type:         event.Type,
+			Description:  event.Description,
+			StartTime:    event.StartTime,
+			EndTime:      event.EndTime,
+			Thumbnail:    event.Thumbnail,
+			CheckinCount: checkinCount,
 		},
 	}