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

namespace EMIS.DataLogic.MinorManage.MinorSetting
{
    public class MinorControlDAL
    {
        public MinorControlRepository minorControlRepository { get; set; }
        public CollegeRepository collegeRepository { get; set; }
        public SchoolyearRepository schoolyearRepository { get; set; }

        public IQueryable<MinorControlView> GetMinorControlViewQueryable(Expression<Func<ER_MinorControl, bool>> exp)
        {
            var query = from mcr in minorControlRepository.GetList(exp)
                        join cr in collegeRepository.Entities
                        on mcr.CollegeID equals cr.CollegeID
                        into gcr
                        from gcrt in gcr.DefaultIfEmpty()
                        join year in schoolyearRepository.Entities
                        on mcr.SchoolyearID equals year.SchoolyearID
                        select new MinorControlView
                        {
                            MinorControlID = mcr.MinorControlID,
                            CollegeID = mcr.CollegeID,
                            CollegeName = gcrt.Name,
                            SchoolyearID = mcr.SchoolyearID,
                            SchoolyearCode = year.Code,
                            GradeYearID = mcr.GradeyearID,
                            StartDate = mcr.StartDate,
                            EndDate = mcr.EndDate
                        };
            return query;
        }
    }
}