ルームに入場する際にルーム参加者初期化

ABVJE_BL/src/jp/agentec/abook/abv/bl/data/dao/ChatRoomDao.java

@@ -187,6 +187,7 @@ public class ChatRoomDao extends AbstractDao {
 	}
 
 	public void insertChatRoomUsers(List<Integer> attendUsers, Integer chatRoomId) {
+		update("delete from r_chat_room_shop_member where chat_room_id = ?", new Integer[]{chatRoomId});
 		for (Integer attendUserId : attendUsers) {
 			insert("insert or replace into r_chat_room_shop_member (chat_room_id, shop_member_id) values (?,?)", new Integer[]{chatRoomId, attendUserId});
 		}