/// <summary>
/// 更新一条题目类型种类
/// </summary>
/// <param name="entity">题目类型种类实体</param>
/// <returns>是否成功更新</returns>
public static IMethodResult AdminUpdateProblemCategory(ProblemCategoryEntity entity)
{
if (!AdminManager.HasPermission(PermissionType.ProblemManage))
{
throw new NoPermissionException();
}
if (entity.TypeID <= 0)
{
return(MethodResult.InvalidRequest(RequestType.ProblemCategory));
}
if (String.IsNullOrEmpty(entity.Title))
{
return(MethodResult.FailedAndLog("Problem category title cannot be NULL!"));
}
Boolean success = ProblemCategoryRepository.Instance.UpdateEntity(entity) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No problem category was updated!"));
}
ProblemCategoryCache.RemoveProblemCategoryListCache();//删除缓存
return(MethodResult.SuccessAndLog("Admin update problem category, id = {0}", entity.TypeID.ToString()));
}
/// <summary>
/// 删除指定ID的题目类型种类
/// </summary>
/// <param name="id">题目类型种类ID</param>
/// <returns>是否成功删除</returns>
public static IMethodResult AdminDeleteProblemCategory(Int32 id)
{
if (!AdminManager.HasPermission(PermissionType.ProblemManage))
{
throw new NoPermissionException();
}
if (id <= 0)
{
return(MethodResult.InvalidRequest(RequestType.ProblemCategory));
}
if (ProblemCategoryItemRepository.Instance.CountEntities(id) > 0)
{
return(MethodResult.FailedAndLog("This category still has some problems, please remove these problem from this category first!"));
}
Boolean success = ProblemCategoryRepository.Instance.DeleteEntity(id) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No problem category was deleted!"));
}
ProblemCategoryCache.RemoveProblemCategoryListCache();//删除缓存
return(MethodResult.SuccessAndLog("Admin delete problem category, id = {0}", id.ToString()));
}
///// <summary>
///// 根据ID得到一个题目类型种类实体
///// </summary>
///// <param name="id">题目类型种类ID</param>
///// <returns>题目类型种类实体</returns>
//public static ProblemCategoryEntity GetProblemCategory(Int32 id)
//{
// if (id <= 0)
// {
// throw new InvalidRequstException(RequestType.ProblemCategory);
// }
// List<ProblemCategoryEntity> list = ProblemCategoryManager.GetProblemCategoryList();
// if (list != null && list.Count > 0)
// {
// for (Int32 i = 0; i < list.Count; i++)
// {
// if (list[i].TypeID == id) return list[i];
// }
// }
// throw new NullResponseException(RequestType.ProblemCategory);
//}
/// <summary>
/// 获取所有题目类型种类
/// </summary>
/// <returns>所有题目类型种类</returns>
public static List <ProblemCategoryEntity> GetProblemCategoryList()
{
List <ProblemCategoryEntity> list = ProblemCategoryCache.GetProblemCategoryListCache();//获取缓存
if (list == null)
{
list = ProblemCategoryRepository.Instance.GetAllEntities();
ProblemCategoryCache.SetProblemCategoryListCache(list);//设置缓存
}
return(list);
}
/// <summary>
/// 增加一条题目类型种类
/// </summary>
/// <param name="entity">题目类型种类实体</param>
/// <returns>是否成功增加</returns>
public static IMethodResult AdminInsertProblemCategory(ProblemCategoryEntity entity)
{
if (!AdminManager.HasPermission(PermissionType.ProblemManage))
{
throw new NoPermissionException();
}
if (String.IsNullOrEmpty(entity.Title))
{
return(MethodResult.FailedAndLog("Problem category title cannot be NULL!"));
}
Boolean success = ProblemCategoryRepository.Instance.InsertEntity(entity) > 0;
if (!success)
{
return(MethodResult.FailedAndLog("No problem category was added!"));
}
ProblemCategoryCache.RemoveProblemCategoryListCache();//删除缓存
return(MethodResult.SuccessAndLog("Admin add problem category, title = {0}", entity.Title));
}