#374 Fixed game records sync doubling

core/src/cz/nic/tablexia/model/game/GameDAO.java

@@ -157,7 +157,11 @@ public class GameDAO {
     public static final String GAME_SELECT_FOR_USER_AND_DEFINITION = "SELECT id, user_id, difficulty_number, game_number, random_seed, start_time, end_time FROM game WHERE user_id = ? AND game_number = ? AND end_time IS NOT NULL AND end_time != 0 ORDER BY start_time ASC";
     public static final String GAME_SELECT_COUNT_FOR_GAME = "SELECT count(id) FROM game WHERE game_number = ? AND user_id = ?";
     public static final String GAME_SELECT_ALL_FOR_USER_SYNC = "SELECT id, user_id, difficulty_number, game_number, random_seed, start_time, end_time FROM game where user_id = ? AND sync_at is null";
+
     public static final String GAME_SELECT_BY_START_AND_END = "SELECT id FROM game WHERE user_id = ? AND start_time = ? AND end_time = ?";
+    public static final String GAME_SELECT_BY_START_AND_NULL_END = "SELECT id FROM game WHERE user_id = ? AND start_time = ? AND end_time IS NULL";
+
+
     public static final String GAME_SELECT_LAST_SCORES_FOR_USER_AND_GAME = "SELECT value FROM game_score INNER JOIN game ON game_score.game_id=game.id AND game.user_id=? AND game.game_number=? WHERE game_score.key=? AND end_time IS NOT NULL ORDER BY game_id DESC LIMIT 1";
     public static final String GAME_SELECT_FOR_RANK_MANAGER = "SELECT id, difficulty_number, game_number, start_time, end_time FROM game WHERE user_id = ? AND end_time IS NOT NULL AND end_time != 0 ORDER BY end_time ASC";
 
@@ -222,10 +226,17 @@ public class GameDAO {
     }
 
     public static Long selectGameByTimes(long userId, long startTime, long endTime) throws SQLException {
-        PreparedStatement statement = TablexiaStorage.getInstance().prepareStatement(GAME_SELECT_BY_START_AND_END);
+        // workaround for sync error -> serialized JSON from server contains 0 instead of NULL
+//        PreparedStatement statement = TablexiaStorage.getInstance().prepareStatement(GAME_SELECT_BY_START_AND_END);
+        PreparedStatement statement = TablexiaStorage.getInstance().prepareStatement(endTime != 0 ? GAME_SELECT_BY_START_AND_END : GAME_SELECT_BY_START_AND_NULL_END);
         statement.setLong(1, userId);
         statement.setLong(2, startTime);
-        statement.setLong(3, endTime);
+
+        // workaround for sync error -> serialized JSON from server contains 0 instead of NULL
+//        statement.setLong(3, endTime);
+        if (endTime != 0) {
+            statement.setLong(3, endTime);
+        }
 
         Long gameId = null;
         ResultSet resultSet = statement.executeQuery();