BusinessLogicLayer/TeacherBLL.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

using CheckOnWork.IDAL;
using CheckOnWork.Model;
using CheckOnWork.DALFactory;
using CheckOnWork.WebConfig;

namespace CheckOnWork.BusinessLogicLayer
{
    public class TeacherBLL
    {
        private static readonly ITeacher dal = DALFactory.DataAccess.CreateTeacher();
         /// <summary>
       /// 得到某系的教师返回一个集合
       /// </summary>
       /// <param name="departmentId">系别</param>
       /// <returns></returns>
        public IList<Teacher> GetTeachersByDepartment(int departmentId)
        {
            return dal.GetTeachersByDepartment(departmentId);
        }

         /// <summary>
       /// 添加教师信息 添加失败则返回-1
       /// </summary>
       /// <param name="teacher">teacher对象</param>
       /// <returns></returns>
        public int Insert(Teacher teacher)
        {
            return dal.Insert(teacher);
        }

         /// <summary>
       /// 更新教师信息
       /// </summary>
       /// <param name="teacher">Teacher对象</param>
       /// <returns></returns>
        public int Update(Teacher teacher)
        {
            return dal.Update(teacher);
        }

         /// <summary>
       /// 删除教师信息
       /// </summary>
       /// <param name="id">教师ID</param>
       /// <returns></returns>
        public int Delete(string id)
        {
            return dal.Delete(id);
        }

         /// <summary>
       /// 更改密码
       /// </summary>
       /// <param name="id">ID</param>
       /// <param name="pwd">Password</param>