From f4060b107c87b133380872d0f1cf61e3fdc59bc1 Mon Sep 17 00:00:00 2001
From: Alex <alex@akselrod.org>
Date: Tue, 31 Oct 2017 12:29:08 -0600
Subject: [PATCH] blockchain/indexers: check for `ErrNoData` in extended
 filters

Since the tx hash has moved to the basic filter, generating an extended filter
can result in `ErrNoData`. This is handled by writing a nil filter and giving
it a zero hash.
---
 blockchain/indexers/cfindex.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/blockchain/indexers/cfindex.go b/blockchain/indexers/cfindex.go
index 1572effd..fd53ece0 100644
--- a/blockchain/indexers/cfindex.go
+++ b/blockchain/indexers/cfindex.go
@@ -222,7 +222,7 @@ func (idx *CfIndex) ConnectBlock(dbTx database.Tx, block *btcutil.Block,
 	}
 
 	f, err = builder.BuildExtFilter(block.MsgBlock())
-	if err != nil {
+	if err != nil && err != gcs.ErrNoData {
 		return err
 	}