/// <summary>
/// 更新一条公告
/// </summary>
/// <param name="entity">对象实体</param>
/// <returns>是否成功更新</returns>
public static IMethodResult AdminUpdateNews(NewsEntity entity)
{
if (!AdminManager.HasPermission(PermissionType.NewsManage))
{
throw new NoPermissionException();
}
if (String.IsNullOrEmpty(entity.Title))
{
return(MethodResult.FailedAndLog("News title can not be NULL!"));
}
if (String.IsNullOrEmpty(entity.Description))
{
return(MethodResult.FailedAndLog("News content can not be NULL!"));
}
entity.PublishDate = DateTime.Now;
Boolean success = NewsRepository.Instance.UpdateEntity(entity) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No news was updated!"));
}
NewsCache.SetNewsCache(entity);//更新缓存
if (entity.AnnounceID != NewsRepository.DEFAULTID)
{
NewsCache.RemoveLastestNewsListCache();//删除缓存
}
return(MethodResult.SuccessAndLog("Admin update news, id = {0}", entity.AnnounceID.ToString()));
}
private void RefreshCatalog()
{
Thread t = new Thread(() => {
Invoke(new Action(() =>
{
button_refresh.Enabled = false;
progressBar1.Visible = true;
label_progress.Visible = true;
}));
_topics = NewsCache.RefreshCatalog(progressBar1, label_progress);
Invoke(new Action(() =>
{
listView1.Items.Clear();
imageList1.Images.Clear();
for (int i = 0; i < _topics.Count; i++)
{
imageList1.Images.Add(_topics[i].Icon);
var item = listView1.Items.Add(_topics[i].Details.name);
item.ImageIndex = i;
item.SubItems.Add(_topics[i].Details.publisher);
item.SubItems.Add(_topics[i].Details.description);
}
button_refresh.Enabled = true;
progressBar1.Visible = false;
label_progress.Visible = false;
}));
});
t.IsBackground = true;
t.Start();
}
/// <summary>
/// 增加一条公告
/// </summary>
/// <param name="entity">对象实体</param>
/// <returns>是否成功增加</returns>
public static IMethodResult AdminInsertNews(NewsEntity entity)
{
if (!AdminManager.HasPermission(PermissionType.NewsManage))
{
throw new NoPermissionException();
}
if (String.IsNullOrEmpty(entity.Title))
{
return(MethodResult.FailedAndLog("News title can not be NULL!"));
}
if (String.IsNullOrEmpty(entity.Description))
{
return(MethodResult.FailedAndLog("News content can not be NULL!"));
}
entity.PublishDate = DateTime.Now;
Boolean success = NewsRepository.Instance.InsertEntity(entity) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No news was added!"));
}
NewsCache.RemoveLastestNewsListCache(); //删除缓存
NewsCache.RemoveNewsCountCache(); //删除缓存
return(MethodResult.SuccessAndLog("Admin add news, title = {0}", entity.Title));
}
/// <summary>
/// 获取公告总数(有缓存)
/// </summary>
/// <returns>公告总数</returns>
private static Int32 CountNews()
{
Int32 recordCount = NewsCache.GetNewsCountCache();//获取缓存
if (recordCount < 0)
{
recordCount = NewsRepository.Instance.CountEntities() - 1;
NewsCache.SetNewsCountCache(recordCount);//设置缓存
}
return(recordCount);
}
/// <summary>
/// 获取最近公告
/// </summary>
/// <param name="count">获取公告数</param>
/// <returns>最近公告</returns>
public static List <NewsEntity> GetLastestNewsList()
{
List <NewsEntity> list = NewsCache.GetLastestNewsListCache();//获取缓存
if (list == null)
{
list = NewsRepository.Instance.GetLastEntities(HOMEPAGE_PAGE_SIZE);
NewsCache.SetLastestNewsListCache(list);//设置缓存
}
return(list);
}
/// <summary>
/// 根据ID得到一个公告实体
/// </summary>
/// <param name="id">公告ID</param>
/// <returns>公告实体</returns>
public static NewsEntity GetNews(Int32 id)
{
if (id <= 0)
{
throw new InvalidRequstException(RequestType.News);
}
NewsEntity entity = NewsCache.GetNewsCache(id);//读取缓存
if (entity == null)
{
entity = NewsRepository.Instance.GetEntity(id);
NewsCache.SetNewsCache(entity);//设置缓存
}
if (entity == null)
{
throw new NullResponseException(RequestType.News);
}
return(entity);
}
/// <summary>
/// 删除指定ID的公告
/// </summary>
/// <param name="ids">逗号分隔的公告ID</param>
/// <returns>是否成功删除</returns>
public static IMethodResult AdminDeleteNews(String ids)
{
if (!AdminManager.HasPermission(PermissionType.NewsManage))
{
throw new NoPermissionException();
}
if (!RegexVerify.IsNumericIDs(ids))
{
return(MethodResult.InvalidRequest(RequestType.News));
}
String[] arrids = ids.Split(',');
String defaultID = NewsRepository.DEFAULTID.ToString();
for (Int32 i = 0; i < arrids.Length; i++)
{
if (String.Equals(arrids[i], defaultID))
{
return(MethodResult.FailedAndLog("Can not delete the default news!"));
}
}
Boolean success = NewsRepository.Instance.DeleteEntities(ids) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No news was deleted!"));
}
ids.ForEachInIDs(',', id =>
{
NewsCache.RemoveNewsCache(id); //删除缓存
});
NewsCache.RemoveLastestNewsListCache(); //删除缓存
NewsCache.RemoveNewsCountCache(); //删除缓存
return(MethodResult.SuccessAndLog("Admin delete news, id = {0}", ids));
}
/// <summary>
/// 更新广告Redis
/// </summary>
/// <param name="obj">存储到Redis对象</param>
/// <returns></returns>
public void SetADSRedis()
{
NewsCache fundCache = new NewsCache();
fundCache.RefreshAdList();
}
