import - service area in organization & validate in org rancher link

apps/herd/exception.py

@@ -15,3 +15,22 @@ class DuplicateRancherException(APIException):
 class HerdCapacityException(APIException):
     status_code = status.HTTP_403_FORBIDDEN
     default_detail = "مقدار حجم سبک و سنگین وارد شده از ظرفیت گله بیشتر میباشد"  # noqa
+
+
+class HerdException(APIException):
+    """ if quota is not available """
+
+    status_code = status.HTTP_400_BAD_REQUEST
+    default_detail = "خطا در اطلاعات گله"  # noqa
+    default_code = 'error'
+
+    def __init__(self, message=None, status_code=None, code=None):
+        if status_code is not None:
+            self.status_code = status_code
+
+        detail = {
+            "message": message,
+            "status_code": status_code
+        }
+
+        super().__init__(detail)