using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.ViewModel.Cultureplan;
using EMIS.DataLogic.Repositories;

namespace EMIS.DataLogic.Common.Cultureplan
{
    public class CoursematerialDAL
    {
        public CoursematerialRepository CoursematerialRepository { get; set; }
        public ClassGroupingRepository ClassGroupingRepository { get; set; }

        /// <summary>
        /// 查询对应的课程信息CoursematerialView
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<CoursematerialView> GetCoursematerialViewQueryable(Expression<Func<EM_Coursematerial, bool>> exp)
        {
            var query = from cou in CoursematerialRepository.GetList(exp)
                        join cg in ClassGroupingRepository.Entities
                        on cou.ClassGroupingID equals cg.ClassGroupingID into tempcg
                        from coucg in tempcg.DefaultIfEmpty()
                        select new CoursematerialView
                        {
                            CoursematerialID = cou.CoursematerialID,
                            CourseCode = cou.CourseCode,
                            CourseName = cou.CourseName,
                            Abbreviation = cou.Abbreviation,
                            EnglishName = cou.EnglishName,
                            StandardName = cou.StandardName,
                            CourseEdition = cou.CourseEdition,
                            CourseLevelID = cou.CourseLevelID,
                            CourseScienceID = cou.CourseScienceID,
                            ClassGroupingID = cou.ClassGroupingID,
                            ClassName = coucg.ClassName,
                            CourseSynopsis = cou.CourseSynopsis,
                            CourseReserve = cou.CourseReserve,
                            IsEnable = cou.IsEnable == true ? true : false,
                            Remark = cou.Remark,
                            RecordStatus = cou.RecordStatus,
                            CreateUserID = cou.CreateUserID,
                            CreateTime = cou.CreateTime,
                            ModifyUserID = cou.ModifyUserID,
                            ModifyTime = cou.ModifyTime
                        };

            return query;
        }

    }
}