/// <summary>
/// 获取Query获取收藏列表
/// </summary>
/// <param name="query"></param>
/// <returns></returns>
public static PagingDataSet <Favorite> GetFavorites(FavoriteQuery query)
{
PagingDataSet <Favorite> favorites = null;
string cacheKey = CacheKeyManager.GetFavoriteQueryKey(query);
if (HttpContext.Current != null)
{
favorites = HttpContext.Current.Items[cacheKey] as PagingDataSet <Favorite>;
}
if (favorites != null)
{
return(favorites);
}
favorites = HHCache.Instance.Get(cacheKey) as PagingDataSet <Favorite>;
if (favorites == null)
{
int totalRecods;
favorites = new PagingDataSet <Favorite>();
List <Favorite> favoriteList = CommonDataProvider.Instance.GetFavorites(query, out totalRecods);
favorites.Records = favoriteList;
favorites.TotalRecords = totalRecods;
if (HttpContext.Current != null)
{
HttpContext.Current.Items[cacheKey] = favorites;
}
HHCache.Instance.Insert(cacheKey, favorites);
}
return(favorites);
}
/// <summary>
/// FavoriteQuery获取缓存头信息
/// </summary>
/// <param name="userID"></param>
/// <returns></returns>
public static string GetFavoritePrefix(FavoriteQuery favoriteQuery)
{
if (favoriteQuery.UserID < 0)
{
return(FavoriteListPrefix);
}
else
{
return(UserPrefix + string.Format("Favorites/UseID-{0}/", favoriteQuery.UserID));
}
}
/// <summary>
/// FavoriteQuery CacheKey
/// </summary>
/// <param name="favoriteQuery"></param>
/// <returns></returns>
public static string GetFavoriteQueryKey(FavoriteQuery favoriteQuery)
{
return(GetFavoritePrefix(favoriteQuery) + string.Format("PI{0}PS{1}UID{2}FTP{3}FT{4}FM{5}",
favoriteQuery.PageIndex,
favoriteQuery.PageSize,
favoriteQuery.UserID,
favoriteQuery.FavoriteType.HasValue ? (Int32)favoriteQuery.FavoriteType.Value : -1,
favoriteQuery.FavoriteTitleFilter,
favoriteQuery.FavoriteMemoFilter
));
}