coursemanagerbll.cs

guan yu pai ke xi tong de ruan jian

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

using Y2T03.CourseScheduler.CourseModel;
using Y2T03.CourseScheduler.CourseDAL;
using Y2T03.CourseScheduler.DALFactory;
using Y2T03.CourseScheduler.IDAL;

namespace Y2T03.CourseScheduler.CourseBLL
{
    /// <summary>
    /// CourseManagerBLL 的业务逻辑层
    /// </summary>
    public class CourseManagerBLL
    {
        public CourseManagerBLL()
        { }

        #region 新增课程
        /// <summary>
        /// 新增课程
        /// </summary>
        /// <param name="course">课程实体对象</param>
        /// <returns>true = 成功, false = 失败</returns>
        public static bool Create(Course course)
        {
            string title = course.Title.Trim().ToString();
            string courseCode = course.CourseCode.Trim().ToString();
            int productId = course.Product.ProductId;
            string sectionCode = course.Section.SectionCode;

            if (title.Length <= 50 && courseCode.Length <= 10)
            {
                bool flg = CourseManagerBLL.CheckIsExits(title, productId, sectionCode);

                if (flg == false)
                {
                    return DALFactory.DataAccess.GetCourseManager().Create(course);
                }
                else
                {
                    return false;
                }
            }
            else
            {
                return false;
            }
        }
        #endregion

        #region 终止课程
        /// <summary>
        /// 终止课程
        /// </summary>
        /// <param name="courseId">课程编号</param>
        /// <returns>true = 成功, false = 失败</returns>
        public static bool Delete(int courseId)
        {
            return DALFactory.DataAccess.GetCourseManager().Delete(courseId);
        }
        #endregion

        #region 修改课程
        /// <summary>
        /// 修改课程
        /// </summary>
        /// <param name="course">课程实体对象</param>
        /// <returns>true = 成功, false = 失败</returns>
        public static bool Update(Course course)
        {
            string title = course.Title.Trim().ToString();
            string courseCode = course.CourseCode.Trim().ToString();
            int productId = course.Product.ProductId;
            string sectionCode = course.Section.SectionCode;

            if (title.Length <= 50 && courseCode.Length <= 10)
            {
                return DALFactory.DataAccess.GetCourseManager().Update(course);
            }
            else
            {
                return false;
            }
        }
        #endregion

        #region 获得教学产品列表
        /// <summary>
        /// 获得教学产品列表
        /// </summary>
        /// <returns>教学产品列表</returns>
        public static IList<Product> GetProducts()
        {
            return DALFactory.DataAccess.GetCourseManager().GetProducts();
        }
        #endregion

        #region 获得教学产品
        /// <summary>
        /// 获得教学产品
        /// </summary>
        /// <param name="productId">教学产品类型编号</param>
        /// <returns>教学产品类型实体对象</returns>
        public static Product GetProduct(int productId)
        {
            return DALFactory.DataAccess.GetCourseManager().GetProduct(productId);
        }
        #endregion

        #region 获得学习阶段列表
        /// <summary>
        /// 获得学习阶段列表
        /// </summary>
        /// <returns>学习阶段列表</returns>
        public static IList<Section> GetSections()
        {
            return DALFactory.DataAccess.GetCourseManager().GetSections();
        }
        #endregion

        #region 获得学习阶段
        /// <summary>
        /// 获得学习阶段
        /// </summary>
        /// <param name="sectionCode">学习阶段编码</param>
        /// <returns>学习阶段实体对象</returns>
        public static Section GetSection(string sectionCode)
        {
            return DALFactory.DataAccess.GetCourseManager().GetSection(sectionCode);
        }
        #endregion

        #region 获得专业技术方向列表
        /// <summary>
        /// 获得专业技术方向列表
        /// </summary>
        /// <returns>专业技术方向列表</returns>
        public static IList<Speciality> GetSpecialities()
        {
            return DALFactory.DataAccess.GetCourseManager().GetSpecialities();
        }
        #endregion

        #region 获得专业技术方向
        /// <summary>
        /// 获得专业技术方向
        /// </summary>
        /// <param name="specialityId">专业技术方向编号</param>
        /// <returns>专业技术方向实体对象</returns>
        public static Speciality GetSpeciality(int specialityId)
        {
            return DALFactory.DataAccess.GetCourseManager().GetSpeciality(specialityId);
        }
        #endregion

        #region 获得某教学产品的指定学习阶段的所有课程
        /// <summary>
        /// 获得某教学产品的指定学习阶段的所有课程
        /// </summary>
        /// <param name="productId">教学产品类型编号</param>
        /// <param name="sectionCode">学习阶段编码</param>
        /// <returns>课程列表</returns>
        public static IList<Course> GetCourses(int productId, string sectionCode)
        {
            return DALFactory.DataAccess.GetCourseManager().GetCourses(productId, sectionCode);
        }
        #endregion

        #region 根据课程编号获取课程
        /// <summary>
        /// 根据课程编号获取课程
        /// </summary>
        /// <param name="courseId">课程编号</param>
        /// <returns>课程实体对象</returns>
        public static Course GetCourse(int courseId)
        {
            return DALFactory.DataAccess.GetCourseManager().GetCourse(courseId);
        }
        #endregion

        #region 获得课程名称列表
        /// <summary>
        /// 获得课程名称列表
        /// </summary>
        /// <returns>课程名称列表</returns>
        public IList<Course> GetCourses()
        {
            return DALFactory.DataAccess.GetCourseManager().GetCourses();
        }
        #endregion

        #region 插入时检查课程名称是否存在
        /// <summary>
        /// 插入时检查课程名称是否存在
        /// </summary>
        /// <param name="title">课程名称</param>
        /// <param name="productId">产品名称</param>
        /// <param name="sectionCode">阶段名称</param>
        /// <returns>true = 有, false = 没有.</returns>
        public static bool CheckIsExits(string title, int productId, string sectionCode)
        {
            return DALFactory.DataAccess.GetCourseManager().CheckIsExits(title, productId, sectionCode);
        }
        #endregion
    }
}