add last_vote_time to account statistics

libraries/chain/account_evaluator.cpp

@@ -279,6 +279,17 @@ void_result account_update_evaluator::do_evaluate( const account_update_operatio
 void_result account_update_evaluator::do_apply( const account_update_operation& o )
 { try {
    database& d = db();
+
+   if( o.new_options.valid() )
+   {
+      d.modify( acnt->statistics( d ), [&]( account_statistics_object& aso )
+      {
+         if((o.new_options->votes != acnt->options.votes ||
+             o.new_options->voting_account != acnt->options.voting_account))
+            aso.last_vote_time = d.head_block_time();
+      } );
+   }
+
    bool sa_before, sa_after;
    d.modify( *acnt, [&](account_object& a){
       if( o.owner )
@@ -320,7 +331,6 @@ void_result account_update_evaluator::do_apply( const account_update_operation&
          sa.account = o.account;
       } );
    }
-
    return void_result();
 } FC_CAPTURE_AND_RETHROW( (o) ) }
 

libraries/chain/include/graphene/chain/account_object.hpp

@@ -82,6 +82,11 @@ namespace graphene { namespace chain {
           */
          share_type pending_vested_fees;
 
+         /**
+          * Keep the date of the last voting activity for this account.
+          */
+         time_point_sec last_vote_time;
+
          /// @brief Split up and pay out @ref pending_fees and @ref pending_vested_fees
          void process_fees(const account_object& a, database& d) const;
 
@@ -463,6 +468,7 @@ FC_REFLECT_DERIVED( graphene::chain::account_statistics_object,
                     (total_core_in_orders)
                     (lifetime_fees_paid)
                     (pending_fees)(pending_vested_fees)
+                    (last_vote_time)
                   )
 
 FC_REFLECT_DERIVED( graphene::chain::pending_dividend_payout_balance_for_holder_object,

libraries/chain/include/graphene/chain/config.hpp

@@ -151,7 +151,7 @@
 #define GRAPHENE_RECENTLY_MISSED_COUNT_INCREMENT             4
 #define GRAPHENE_RECENTLY_MISSED_COUNT_DECREMENT             3
 
-#define GRAPHENE_CURRENT_DB_VERSION                          "PPY2.0"
+#define GRAPHENE_CURRENT_DB_VERSION                          "PPY2.1"
 
 #define GRAPHENE_IRREVERSIBLE_THRESHOLD                      (70 * GRAPHENE_1_PERCENT)
 

tests/tests/voting_tests.cpp

@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2018 oxarbitrage, and contributors.
+ *
+ * The MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <boost/test/unit_test.hpp>
+
+#include <graphene/app/database_api.hpp>
+#include <graphene/chain/exceptions.hpp>
+
+#include <iostream>
+
+#include "../common/database_fixture.hpp"
+
+using namespace graphene::chain;
+using namespace graphene::chain::test;
+
+
+BOOST_FIXTURE_TEST_SUITE(voting_tests, database_fixture)
+
+BOOST_AUTO_TEST_CASE(last_voting_date)
+{
+   try
+   {
+      ACTORS((alice));
+
+      transfer(committee_account, alice_id, asset(100));
+
+      // we are going to vote for this witness
+      auto witness1 = witness_id_type(1)(db);
+
+      auto stats_obj = alice_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(stats_obj.last_vote_time.sec_since_epoch(), 0);
+
+      // alice votes
+      graphene::chain::account_update_operation op;
+      op.account = alice_id;
+      op.new_options = alice.options;
+      op.new_options->votes.insert(witness1.vote_id);
+      trx.operations.push_back(op);
+      sign(trx, alice_private_key);
+      PUSH_TX( db, trx, ~0 );
+
+      auto now = db.head_block_time().sec_since_epoch();
+
+      // last_vote_time is updated for alice
+      stats_obj = alice_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(stats_obj.last_vote_time.sec_since_epoch(), now);
+
+   } FC_LOG_AND_RETHROW()
+}
+BOOST_AUTO_TEST_CASE(last_voting_date_proxy)
+{
+   try
+   {
+      ACTORS((alice)(proxy)(bob));
+
+      transfer(committee_account, alice_id, asset(100));
+      transfer(committee_account, bob_id, asset(200));
+      transfer(committee_account, proxy_id, asset(300));
+
+      generate_block();
+
+      // witness to vote for
+      auto witness1 = witness_id_type(1)(db);
+
+      // round1: alice changes proxy, this is voting activity
+      {
+         graphene::chain::account_update_operation op;
+         op.account = alice_id;
+         op.new_options = alice_id(db).options;
+         op.new_options->voting_account = proxy_id;
+         trx.operations.push_back(op);
+         sign(trx, alice_private_key);
+         PUSH_TX( db, trx, ~0 );
+      }
+      // alice last_vote_time is updated
+      auto alice_stats_obj = alice_id(db).statistics(db);
+      auto round1 = db.head_block_time().sec_since_epoch();
+      BOOST_CHECK_EQUAL(alice_stats_obj.last_vote_time.sec_since_epoch(), round1);
+
+      generate_block();
+
+      // round 2: alice update account but no proxy or voting changes are done
+      {
+         graphene::chain::account_update_operation op;
+         op.account = alice_id;
+         op.new_options = alice_id(db).options;
+         trx.operations.push_back(op);
+         sign(trx, alice_private_key);
+         set_expiration( db, trx );
+         PUSH_TX( db, trx, ~0 );
+      }
+      // last_vote_time is not updated
+      auto round2 = db.head_block_time().sec_since_epoch();
+      alice_stats_obj = alice_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(alice_stats_obj.last_vote_time.sec_since_epoch(), round1);
+
+      generate_block();
+
+      // round 3: bob votes
+      {
+         graphene::chain::account_update_operation op;
+         op.account = bob_id;
+         op.new_options = bob_id(db).options;
+         op.new_options->votes.insert(witness1.vote_id);
+         trx.operations.push_back(op);
+         sign(trx, bob_private_key);
+         set_expiration( db, trx );
+         PUSH_TX(db, trx, ~0);
+      }
+
+      // last_vote_time for bob is updated as he voted
+      auto round3 = db.head_block_time().sec_since_epoch();
+      auto bob_stats_obj = bob_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(bob_stats_obj.last_vote_time.sec_since_epoch(), round3);
+
+      generate_block();
+
+      // round 4: proxy votes
+      {
+         graphene::chain::account_update_operation op;
+         op.account = proxy_id;
+         op.new_options = proxy_id(db).options;
+         op.new_options->votes.insert(witness1.vote_id);
+         trx.operations.push_back(op);
+         sign(trx, proxy_private_key);
+         PUSH_TX(db, trx, ~0);
+      }
+
+      // proxy just voted so the last_vote_time is updated
+      auto round4 = db.head_block_time().sec_since_epoch();
+      auto proxy_stats_obj = proxy_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(proxy_stats_obj.last_vote_time.sec_since_epoch(), round4);
+
+      // alice haves proxy, proxy votes but last_vote_time is not updated for alice
+      alice_stats_obj = alice_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(alice_stats_obj.last_vote_time.sec_since_epoch(), round1);
+
+      // bob haves nothing to do with proxy so last_vote_time is not updated
+      bob_stats_obj = bob_id(db).statistics(db);
+      BOOST_CHECK_EQUAL(bob_stats_obj.last_vote_time.sec_since_epoch(), round3);
+
+   } FC_LOG_AND_RETHROW()
+}
+
+BOOST_AUTO_TEST_SUITE_END()