/// <summary>
/// 根据ID获取课程实体
/// </summary>
/// <param name="courseid">课程ID</param>
/// <returns></returns>
public static Entity.CourseEntity GetCourseByID(string courseid)
{
Entity.CourseEntity model = new CourseEntity();
DataTable dt = new DAL.CourseDAL().GetCourseByID(courseid);
if (dt.Rows.Count > 0)
{
model.FillData(dt.Rows[0]);
}
return model;
}
/// <summary>
/// 获取课程列表(分页)
/// </summary>
/// <param name="pid">上级ID</param>
/// <param name="keywords">关键词</param>
/// <param name="orderby">排序</param>
/// <param name="isAsc">ture 升序 false 降序</param>
/// <param name="pageSize">页size</param>
/// <param name="index">页码</param>
/// <param name="total">返回总记录数</param>
/// <param name="pages">返回总页数</param>
/// <returns></returns>
public static List<Entity.CourseEntity> GetCourses(string pid, string keywords, CourseOrderBy orderby, bool isAsc, int pageSize, int index, out int total, out int pages)
{
List<Entity.CourseEntity> list = new List<Entity.CourseEntity>();
string table = "Courses c left join CourseCategory p on c.CategoryID=p.CategoryID join Users u on c.TeacherID=u.UserID";
string columns = " c.*,p.CategoryName CName,u.Name TName,u.PhotoPath";
StringBuilder build = new StringBuilder();
build.Append(" c.Status!= 9 and p.Status!= 9");
if (pid != "-1" && pid != "")
{
build.Append(" and (c.CategoryID='" + pid + "' or p.PID='" + pid + "') ");
}
if (keywords != "")
{
build.Append(" and (c.CourseName like '%" + keywords + "%' or p.CategoryName like '%" + keywords + "%')");
}
DataTable dt = CommonBusiness.GetPagerData(table, columns, build.ToString(), "c.ID", "c." + orderby.ToString(), pageSize, index, out total, out pages, isAsc);
foreach (DataRow dr in dt.Rows)
{
CourseEntity model = new CourseEntity();
model.FillData(dr);
list.Add(model);
}
return list;
}