From 71b613bc7c43d37b444e5531241c355e23de925c Mon Sep 17 00:00:00 2001
From: Martchus <martchus@gmx.net>
Date: Sat, 9 Mar 2024 12:11:52 +0100
Subject: [PATCH] Avoid error when rebuilding database

---
 lmdb-typed.hh  | 3 ++-
 tests/typed.cc | 8 ++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/lmdb-typed.hh b/lmdb-typed.hh
index dd6f9bf..fc7121e 100644
--- a/lmdb-typed.hh
+++ b/lmdb-typed.hh
@@ -157,7 +157,8 @@ template <class Class, typename Type, typename Parent> struct LMDB_SAFE_EXPORT L
 
     void del(MDBRWTransaction &txn, const Class &t, IDType id)
     {
-        if (const auto rc = txn->del(d_idx, keyConv(d_parent->getMember(t)), id)) {
+        const auto rc = txn->del(d_idx, keyConv(d_parent->getMember(t)), id);
+        if (rc && rc != MDB_NOTFOUND) {
             throw LMDBError("Error deleting from index: ", rc);
         }
     }
diff --git a/tests/typed.cc b/tests/typed.cc
index 3bb3bd6..bc8449b 100644
--- a/tests/typed.cc
+++ b/tests/typed.cc
@@ -104,5 +104,13 @@ TEST_CASE("Basic typed tests", "[basictyped]")
     REQUIRE(out.lastName == "testperson");
     REQUIRE(out.enrolled == m.enrolled);
 
+    // rebuild the database
+    txn.rebuild([] (IDType, Member *member) {
+        return member->firstName != "bertus";
+    });
+    REQUIRE(txn.size() == 2);
+    REQUIRE(txn.size<0>() == txn.size());
+    REQUIRE(!txn.get<0>("bertus", out));
+
     txn.abort();
 }