From dcc42c93262993deeb379a7ca2c498d38d60eb9d Mon Sep 17 00:00:00 2001
From: Scott Pashley <scott.pashley@giantdigital.co.uk>
Date: Wed, 23 Oct 2024 15:11:51 +0100
Subject: [PATCH] Since the field is always treated as TextField, we should
 return an empty string rather than None for those model fields that are not
 nullable.

---
 encrypted_fields/fields.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/encrypted_fields/fields.py b/encrypted_fields/fields.py
index 03e5c45..3caba6d 100644
--- a/encrypted_fields/fields.py
+++ b/encrypted_fields/fields.py
@@ -54,7 +54,7 @@ class EncryptedFieldMixin(object):
             if not isinstance(value, str):
                 value = str(value)
             return self.f.encrypt(bytes(value, "utf-8")).decode("utf-8")
-        return None
+        return ""
 
     def get_db_prep_value(self, value, connection, prepared=False):
         if not prepared: