From 49bf34121169372a8ac6a38afb16e2073dc6d07b Mon Sep 17 00:00:00 2001
From: HosokawaR <thin.river.jp@gmail.com>
Date: Tue, 16 Apr 2024 01:00:02 +0900
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---
 src/infrastructure/api/converters/instructor.ts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/infrastructure/api/converters/instructor.ts b/src/infrastructure/api/converters/instructor.ts
index 66225de1..cdbc3540 100644
--- a/src/infrastructure/api/converters/instructor.ts
+++ b/src/infrastructure/api/converters/instructor.ts
@@ -1,6 +1,9 @@
 import { removeDuplicate } from "~/utils";
 
 export const apiToInstructors = (apiInstructor: string): string[] => {
+  // [Workaround]
+  // 担当教員がいない場合に BE は空文字で返すが、FE は空文字をバリデーションエラーとして扱うため、空配列に変換する
+  if (apiInstructor === "") return [];
   return removeDuplicate(
     apiInstructor.split(/,|、/).map((instructor) => instructor.trim())
   );