From a41070b7d74b2e8c3788b36a55289d15cddd87cd Mon Sep 17 00:00:00 2001
From: HystericalDragon <HystericalDragons@proton.me>
Date: Fri, 15 Mar 2024 18:00:50 +0800
Subject: [PATCH] fix(database): not save empty list

Signed-off-by: HystericalDragon <HystericalDragons@proton.me>
---
 .../nekohasekai/sagernet/database/ListConverter.kt | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/app/src/main/java/io/nekohasekai/sagernet/database/ListConverter.kt b/app/src/main/java/io/nekohasekai/sagernet/database/ListConverter.kt
index 9d59f019..c144f00e 100644
--- a/app/src/main/java/io/nekohasekai/sagernet/database/ListConverter.kt
+++ b/app/src/main/java/io/nekohasekai/sagernet/database/ListConverter.kt
@@ -7,13 +7,21 @@ class ListConverter {
         @TypeConverter
         @JvmStatic
         fun fromList(list: List<String>): String {
-            return list.joinToString(",")
+            return if (list.isEmpty()) {
+                ""
+            } else {
+                list.joinToString(",")
+            }
         }
 
         @TypeConverter
         @JvmStatic
-        fun toList(string: String): List<String> {
-            return string.split(",")
+        fun toList(str: String): List<String> {
+            return if (str.isBlank()) {
+                listOf()
+            } else {
+                str.split(",")
+            }
         }
     }
 }