Add isjoined to event info and event list

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

service/service_event/get_event_info.go

@@ -7,6 +7,7 @@ import (
 	"nixcn-cms/service/shared"
 
 	"github.com/google/uuid"
+	"gorm.io/gorm"
 )
 
 type EventInfoData struct {
@@ -15,6 +16,7 @@ type EventInfoData struct {
 
 type EventInfoPayload struct {
 	Context context.Context
+	UserId  uuid.UUID
 	Data    *EventInfoData
 }
 
@@ -87,6 +89,32 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 		return
 	}
 
+	var isJoined bool
+	joinedInfo, err := new(data.Attendance).GetAttendance(payload.Context, payload.UserId, payload.Data.EventId)
+	if err != nil && err != gorm.ErrRecordNotFound {
+		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
+	} else if err == gorm.ErrRecordNotFound {
+		isJoined = false
+	} else if joinedInfo.AttendanceId != uuid.Nil {
+		isJoined = true
+	}
+
 	result = &EventInfoResult{
 		Common: shared.CommonResult{
 			HttpCode: 200,
@@ -106,7 +134,8 @@ func (self *EventServiceImpl) GetEventInfo(payload *EventInfoPayload) (result *E
 			StartTime:    event.StartTime,
 			EndTime:      event.EndTime,
 			Thumbnail:    event.Thumbnail,
-			RequireKyc:   event.EnableKYC,
+			EnableKYC:    event.EnableKYC,
+			IsJoined:     isJoined,
 			JoinCount:    joinCount,
 			CheckinCount: checkinCount,
 		},