From c4e5e09434b08e6e496c1f93ae87e7a92cf2f42d Mon Sep 17 00:00:00 2001
From: Kazuki Murahama <kazuki.murahama@gmail.com>
Date: Fri, 16 Oct 2020 07:12:04 +0900
Subject: [PATCH] fixed no fields bug

---
 src/js/config/FormFieldSelectTable.tsx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/js/config/FormFieldSelectTable.tsx b/src/js/config/FormFieldSelectTable.tsx
index 5bef2e7..663b7f0 100644
--- a/src/js/config/FormFieldSelectTable.tsx
+++ b/src/js/config/FormFieldSelectTable.tsx
@@ -56,6 +56,12 @@ const useFormFieldSelectTable = (
 ) => {
   const [appFields, setAppfields] = useState<FormField[]>([]);
   const [selectedFields, setSelectedFields] = useState<FormField[]>(defaultSelectedFields);
+  useEffect(() => {
+    // reset initial value when no default selected fields
+    if (defaultSelectedFields.length === 0 && appFields.length > 0) {
+      setSelectedFields([{ code: appFields[0].code }]);
+    }
+  }, [appFields, defaultSelectedFields.length]);
   const onChangeSelect = useCallback(
     (event: SyntheticEvent<HTMLSelectElement>, index: number) => {
       const value = event.currentTarget.value;