Core/DBLayer: Convert PAppend() queries to prepared statements No.1

src/server/game/Battlegrounds/ArenaTeamMgr.cpp

@@ -153,6 +153,8 @@ void ArenaTeamMgr::DistributeArenaPoints()
 
     SQLTransaction trans = CharacterDatabase.BeginTransaction();
 
+    PreparedStatement* stmt;
+
     // Cycle that gives points to all players
     for (std::map<uint32, uint32>::iterator playerItr = PlayerPoints.begin(); playerItr != PlayerPoints.end(); ++playerItr)
     {
@@ -160,7 +162,12 @@ void ArenaTeamMgr::DistributeArenaPoints()
         if (Player* player = HashMapHolder<Player>::Find(playerItr->first))
             player->ModifyArenaPoints(playerItr->second, &trans);
         else    // Update database
-            trans->PAppend("UPDATE characters SET arenaPoints=arenaPoints+%u WHERE guid=%u", playerItr->second, playerItr->first);
+        {
+            stmt = CharacterDatabase.GetPreparedStatement(CHAR_UPD_CHAR_ARENA_POINTS);
+            stmt->setUInt32(0, playerItr->second);
+            stmt->setUInt32(1, playerItr->first);
+            trans->Append(stmt);
+        }
     }
 
     CharacterDatabase.CommitTransaction(trans);