From bde7c9fa38775a81d53ac0484fa9c98076a0c7d1 Mon Sep 17 00:00:00 2001
From: Andrew Chow <achow101-github@achow101.com>
Date: Tue, 11 Feb 2020 17:10:25 -0500
Subject: Implement SignTransaction in DescriptorScriptPubKeyMan

---
 src/wallet/scriptpubkeyman.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'src/wallet/scriptpubkeyman.cpp')

diff --git a/src/wallet/scriptpubkeyman.cpp b/src/wallet/scriptpubkeyman.cpp
index 67063ad23..1eb9dc4d7 100644
--- a/src/wallet/scriptpubkeyman.cpp
+++ b/src/wallet/scriptpubkeyman.cpp
@@ -1943,7 +1943,16 @@ bool DescriptorScriptPubKeyMan::CanProvide(const CScript& script, SignatureData&
 
 bool DescriptorScriptPubKeyMan::SignTransaction(CMutableTransaction& tx, const std::map<COutPoint, Coin>& coins, int sighash, std::map<int, std::string>& input_errors) const
 {
-    return false;
+    std::unique_ptr<FlatSigningProvider> keys = MakeUnique<FlatSigningProvider>();
+    for (const auto& coin_pair : coins) {
+        std::unique_ptr<FlatSigningProvider> coin_keys = GetSigningProvider(coin_pair.second.out.scriptPubKey, true);
+        if (!coin_keys) {
+            continue;
+        }
+        *keys = Merge(*keys, *coin_keys);
+    }
+
+    return ::SignTransaction(tx, keys.get(), coins, sighash, input_errors);
 }
 
 SigningResult DescriptorScriptPubKeyMan::SignMessage(const std::string& message, const PKHash& pkhash, std::string& str_sig) const
-- 
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