/// <summary>
/// 批量添加上课时间段
/// <para>作 者:Huang GaoLiang </para>
/// <para>创建时间：2018-09-26 </para>
/// </summary>
/// <param name="list">上课时间段集合</param>
/// <param name="toTermId">学期编号</param>
/// <returns>返回受影响的行数</returns>
internal async Task <int> AddTaskDatSchoolTime(List <TblDatSchoolTime> list, long toTermId)
{
TblDatSchoolTimeRepository schoolTimeRepository = new TblDatSchoolTimeRepository();
await schoolTimeRepository.DeleteTask(toTermId); //先删除，后添加
return(await schoolTimeRepository.AddTask(list));
}
/// <summary>
/// 根据主键删除一条上课时间段
/// <para>作 者:Huang GaoLiang </para>
/// <para>创建时间：2018-09-07 </para>
/// </summary>
/// <param name="schoolTimeId">上课时间段主键编号</param>
/// <exception cref="AMS.Core.BussinessException">
/// 异常ID：7,上课时间段编号不能为空
/// </exception>
public static async Task Remove(long schoolTimeId)
{
if (schoolTimeId < 1)
{
throw new BussinessException((byte)ModelType.Datum, 7);
}
// 1、查询需要数据的删除
TblDatSchoolTimeRepository schoolTimeRepository = new TblDatSchoolTimeRepository();
TblDatSchoolTime schoolTime = await schoolTimeRepository.LoadTask(schoolTimeId);
// 2、校验是否可以删除（在课表中被使用的时间段不允许被删除）
CanDelete(schoolTimeId, schoolTime.TermId);
List <TblDatSchoolTime> schoolTimeList = new List <TblDatSchoolTime>();
schoolTimeList = await SchoolTimeCombinated(schoolTimeRepository, schoolTime, schoolTimeList);
await schoolTimeRepository.DeleteTask(schoolTime.TermId, schoolTime.WeekDay, schoolTime.Duration);
await schoolTimeRepository.AddTask(schoolTimeList);
}