From 05144c4e0629c3dad7399945d5c42a221fc271bb Mon Sep 17 00:00:00 2001
From: turtlebasket <turtlebasket@gmail.com>
Date: Wed, 31 Aug 2022 18:43:45 +0000
Subject: [PATCH] auction key iterator

---
 x/cosmostest/memdb/biddb.go | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/x/cosmostest/memdb/biddb.go b/x/cosmostest/memdb/biddb.go
index f5c173e..5eaf13a 100644
--- a/x/cosmostest/memdb/biddb.go
+++ b/x/cosmostest/memdb/biddb.go
@@ -152,3 +152,23 @@ func (b *bidDB) ClearAuction(auctionId string) error {
 
 	return err
 }
+
+// Iterate over all auction keys in memory. VIEW-ONLY.
+func (b *bidDB) ForEachAuction(viewFunc func(string) error) error {
+	err := b.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		// can customize options down here if we want
+		iter := txn.NewIterator(opts)
+		defer iter.Close()
+		for iter.Rewind(); iter.Valid(); iter.Next() {
+			item := iter.Item()
+			key := string(item.Key())
+			err := viewFunc(key)
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	return err
+}