using System;
using DeiNiu.wms.Data.Model;
using System.Data;
namespace DeiNiu.wms.Logical
{
    [Serializable]
    public class Llesson 
    {
		Lesson _obj;


        public Llesson()
        {
           
            Initialize();
        }

        public Lesson GetLesson 
        {
            get
            {
                return _obj;
            }
        }
		
		/// <summary>
		/// get all data
		/// </summary>
        public DataSet GetAllData()
        {
           return _obj.Query();
        }

        /// <summary>
        /// get all data
        /// </summary>
        public DataSet GetAllActiveData()
        {
            return _obj.QueryActived();
        }

 	
		/// <summary>
		/// get a record by id
		/// </summary>
        public void Initialize(int id)
		{
            _obj = id != 0 ? new Lesson(id) : new Lesson();
		}

        /// <summary>
		/// get a record by id 0
		/// </summary>
        public void Initialize()
        {
            Initialize(0);
        }
        /// <summary>
        /// 指定类别的课程列表
        /// </summary>
        /// <returns></returns>
        public DataTable GetLessonsByCat(int catId)
        {
            return _obj.GetActivedLessonsByCat(  catId);
        }

        public DataTable GetAllActivedCategories()
        {
            return new LessonCategory().QueryActived().Tables[0];
        }
    }

   
}