public override bool Equals(object obj)
        {
            if (obj == null || !(obj is ERRestaurantEntity))
            {
                return(false);
            }

            return(RestaurantID.Equals((obj as ERRestaurantEntity).RestaurantID));
        }
        public override bool Equals(object obj)
        {
            if (obj == null || !(obj is ERRestaurantComment))
            {
                return(false);
            }

            return(RestaurantID.Equals((obj as ERRestaurantComment).RestaurantID) &
                   FromUserID.Equals((obj as ERRestaurantComment).FromUserID) &
                   CommentContent.Equals((obj as ERRestaurantComment).CommentContent) &
                   CommentTime.Equals((obj as ERRestaurantComment).CommentTime));
        }