用户确认加入家庭已存在则返回174

Controller/SensorGateway/GatewayFamilyMemberController.py

@@ -213,6 +213,10 @@ class GatewayFamilyMemberView(View):
         family_join = FamilyMemberJoin.objects.filter(id=join_id, status=0)
         if not family_join.exists():
             return response.json(173)
+        family_member = FamilyMember.objects.filter(family_id=family_join.first().family_id,
+                                                    user_id=family_join.first().user_id)
+        if family_member.exists():
+            return response.json(174)
         try:
             now_time = int(time.time())
             with transaction.atomic():