using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BLL
{
    /// <summary>
    /// 党课
    /// </summary>
    public class PartyLectureService
    {
        /// <summary>
        /// 根据主键获取党课
        /// </summary>
        /// <param name="partyLectureId"></param>
        /// <returns></returns>
        public static Model.Party_PartyLecture GetPartyLectureById(string partyLectureId)
        {
            return Funs.DB.Party_PartyLecture.FirstOrDefault(e => e.PartyLectureId == partyLectureId);
        }

        /// <summary>
        /// 添加党课
        /// </summary>
        /// <param name="partyLecture"></param>
        public static void AddPartyLecture(Model.Party_PartyLecture partyLecture)
        {
            Model.Party_PartyLecture newPartyLecture = new Model.Party_PartyLecture
            {
                PartyLectureId = partyLecture.PartyLectureId,
                Year = partyLecture.Year,
                Quarter = partyLecture.Quarter,
                CompileMan = partyLecture.CompileMan,
                CompileDate = partyLecture.CompileDate
            };
            Funs.DB.Party_PartyLecture.InsertOnSubmit(newPartyLecture);
            Funs.DB.SubmitChanges();
        }

        /// <summary>
        /// 修改党课
        /// </summary>
        /// <param name="partyLecture"></param>
        public static void UpdatePartyLecture(Model.Party_PartyLecture partyLecture)
        {
            Model.Party_PartyLecture newPartyLecture = Funs.DB.Party_PartyLecture.FirstOrDefault(e => e.PartyLectureId == partyLecture.PartyLectureId);
            if (newPartyLecture != null)
            {
                newPartyLecture.Quarter = partyLecture.Quarter;
                Funs.DB.SubmitChanges();
            }
        }

        /// <summary>
        /// 根据主键删除党课
        /// </summary>
        /// <param name="partyLectureId"></param>
        public static void DeletePartyLectureById(string partyLectureId)
        {
            Model.Party_PartyLecture partyLecture = Funs.DB.Party_PartyLecture.FirstOrDefault(e => e.PartyLectureId == partyLectureId);
            if (partyLecture != null)
            {
                CommonService.DeleteAttachFileById(partyLectureId);
                CommonService.DeleteAttachFileById(partyLectureId + "2");
                CommonService.DeleteAttachFileById(partyLectureId + "3");
                Funs.DB.Party_PartyLecture.DeleteOnSubmit(partyLecture);
                Funs.DB.SubmitChanges();
            }
        }
    }
}