From 5da73140a5e1ca4e857ee0f9e387b88c03e5f0f0 Mon Sep 17 00:00:00 2001
From: srowen <srowen@59b500cc-1b3d-0410-9834-0bbf25fbcc57>
Date: Tue, 25 Sep 2012 21:07:16 +0000
Subject: [PATCH] Fix minor NPE on item detail update

git-svn-id: https://zxing.googlecode.com/svn/trunk@2411 59b500cc-1b3d-0410-9834-0bbf25fbcc57
---
 .../zxing/client/android/history/HistoryManager.java  | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/android/src/com/google/zxing/client/android/history/HistoryManager.java b/android/src/com/google/zxing/client/android/history/HistoryManager.java
index aa636d298..198a06adb 100644
--- a/android/src/com/google/zxing/client/android/history/HistoryManager.java
+++ b/android/src/com/google/zxing/client/android/history/HistoryManager.java
@@ -203,11 +203,12 @@ public final class HistoryManager {
         oldDetails = cursor.getString(1);
       }
 
-      String newDetails = oldDetails == null ? itemDetails : oldDetails + " : " + itemDetails;
-      ContentValues values = new ContentValues();
-      values.put(DBHelper.DETAILS_COL, newDetails);
-
-      db.update(DBHelper.TABLE_NAME, values, DBHelper.ID_COL + "=?", new String[] { oldID });
+      if (oldID != null) {
+        String newDetails = oldDetails == null ? itemDetails : oldDetails + " : " + itemDetails;
+        ContentValues values = new ContentValues();
+        values.put(DBHelper.DETAILS_COL, newDetails);
+        db.update(DBHelper.TABLE_NAME, values, DBHelper.ID_COL + "=?", new String[] { oldID });
+      }
 
     } finally {
       close(cursor, db);