From d8cd48d6adba1b59df79d5374089b609ef7982b1 Mon Sep 17 00:00:00 2001
From: theoreticalbts <theoreticalbts@users.noreply.github.com>
Date: Thu, 21 Jan 2016 11:02:02 -0500
Subject: [PATCH] Implement by_asset_balance index #529

---
 .../include/graphene/chain/account_object.hpp | 26 ++++++++++++++-----
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/libraries/chain/include/graphene/chain/account_object.hpp b/libraries/chain/include/graphene/chain/account_object.hpp
index 69c66789..a3f2b3ab 100644
--- a/libraries/chain/include/graphene/chain/account_object.hpp
+++ b/libraries/chain/include/graphene/chain/account_object.hpp
@@ -289,8 +289,8 @@ namespace graphene { namespace chain {
          map< account_id_type, set<account_id_type> > referred_by;
    };
 
-   struct by_asset;
    struct by_account_asset;
+   struct by_asset_balance;
    /**
     * @ingroup object_index
     */
@@ -298,12 +298,26 @@ namespace graphene { namespace chain {
       account_balance_object,
       indexed_by<
          ordered_unique< tag<by_id>, member< object, object_id_type, &object::id > >,
-         ordered_unique< tag<by_account_asset>, composite_key<
-            account_balance_object,
-            member<account_balance_object, account_id_type, &account_balance_object::owner>,
-            member<account_balance_object, asset_id_type, &account_balance_object::asset_type> >
+         ordered_unique< tag<by_account_asset>,
+            composite_key<
+               account_balance_object,
+               member<account_balance_object, account_id_type, &account_balance_object::owner>,
+               member<account_balance_object, asset_id_type, &account_balance_object::asset_type>
+            >
          >,
-         ordered_non_unique< tag<by_asset>, member<account_balance_object, asset_id_type, &account_balance_object::asset_type> >
+         ordered_unique< tag<by_asset_balance>,
+            composite_key<
+               account_balance_object,
+               member<account_balance_object, asset_id_type, &account_balance_object::asset_type>,
+               member<account_balance_object, share_type, &account_balance_object::balance>,
+               member<account_balance_object, account_id_type, &account_balance_object::owner>
+            >,
+            composite_key_compare<
+               std::less< asset_id_type >,
+               std::greater< share_type >,
+               std::less< account_id_type >
+            >
+         >
       >
    > account_balance_object_multi_index_type;