Merge pull request #2128 from steemit/2126-fix-get-witnesses-by-vote

Fix condenser_api.get_witnesses_by_vote
steemit · Feb 16, 2018 · b767197 · b767197
2 parents 3cecc12 + aabe347
commit b767197
Showing 1 changed file with 17 additions and 7 deletions.
diff --git a/libraries/plugins/apis/condenser_api/condenser_api.cpp b/libraries/plugins/apis/condenser_api/condenser_api.cpp
@@ -1138,16 +1138,26 @@ namespace detail
    DEFINE_API_IMPL( condenser_api_impl, get_witnesses_by_vote )
    {
       CHECK_ARG_SIZE( 2 )
-      auto start = _database_api->list_witnesses( { args[0], 1, database_api::by_name } );
+      account_name_type start_name = args[0].as< account_name_type >();
+      vector< fc::variant > start_key;
+
+      if( start_name == account_name_type() )
+      {
+         start_key.push_back( fc::variant( std::numeric_limits< int64_t >::max() ) );
+         start_key.push_back( fc::variant( account_name_type() ) );
+      }
+      else
+      {
+         auto start = _database_api->list_witnesses( { args[0], 1, database_api::by_name } );
 
-      if( start.witnesses.size() == 0 )
-         return get_witnesses_by_vote_return();
+         if( start.witnesses.size() == 0 )
+            return get_witnesses_by_vote_return();
 
-      auto limit = args[1].as< uint32_t >();
-      vector< fc::variant > start_key;
-      start_key.push_back( fc::variant( start.witnesses[0].votes ) );
-      start_key.push_back( fc::variant( start.witnesses[0].owner ) );
+         start_key.push_back( fc::variant( start.witnesses[0].votes ) );
+         start_key.push_back( fc::variant( start.witnesses[0].owner ) );
+      }
 
+      auto limit = args[1].as< uint32_t >();
       auto witnesses = _database_api->list_witnesses( { fc::variant( start_key ), limit, database_api::by_vote_name } ).witnesses;
 
       get_witnesses_by_vote_return result;