fix:#75 refactoring duplicate function

services/data-manager/service/db/dbEvents.go

@@ -194,6 +194,11 @@ func NewEvent(collection *core.Collection, event model.Event) (*Event, error) {
 	ev.SetBookedAt(event.BookedAt)
 	ev.SetCourse(event.Course)
 	ev.SetSemester(event.Semester)
+	ev.SetCompulsory(event.Compulsory)
+
+	if event.UUID == "" {
+		event.UUID = uuid.NewString()
+	}
 	ev.SetUUID(event.UUID)
 	return ev, nil
 }