From a672a13789c21eef0fdaf0397bc14937f95d2ff7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=BE=9D=E7=91=AA=E8=B2=93?= <imacat@mail.imacat.idv.tw>
Date: Sun, 26 Feb 2023 08:00:58 +0800
Subject: [PATCH] Revised the strip_text filter to return None when the text is
 empty.

---
 src/accounting/utils/strip_text.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/accounting/utils/strip_text.py b/src/accounting/utils/strip_text.py
index 8311f04..cf04ab8 100644
--- a/src/accounting/utils/strip_text.py
+++ b/src/accounting/utils/strip_text.py
@@ -29,4 +29,5 @@ def strip_text(s: str | None) -> str | None:
     """
     if s is None:
         return None
-    return s.strip()
+    s = s.strip()
+    return s if s != "" else None