OA2021/DAL/AirGoodsService.cs

using Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;

namespace DAL
{
    public class AirGoodsService
    {
        List<AirGoods> excuteSql(string sql, params SqlParameter[] param)
        {
            return ServiceBase<AirGoods>.excuteSql(new AirGoods(), "AirGoods", sql, CommandType.Text, param);
        }
        AirGoods excuteType(string sql, params SqlParameter[] param)
        {
            //查询结果放入对象集合
            List<AirGoods> hdList = excuteSql(sql, param);
            //判断集合是否为空
            if (hdList == null || hdList.Count == 0)
                //返回null
                return null;
            //返回单个对象
            return hdList[0];
        }

        //增Add
        public bool Add(AirGoods Dov)
        {
            string sql = "insert into AirGoods values(@Diid,@Goods,@Price,@Num,@SubPrices,@Remark,@Oper,@Opdate,@Isdel);SELECT @@IDENTITY";

            SqlParameter[] parameter = new SqlParameter[]{
                new SqlParameter("@Diid",Dov.Diid),
                new SqlParameter("@Goods",Dov.Goods),
                new SqlParameter("@Price",Dov.Price),
                new SqlParameter("@Num",Dov.Num),
                new SqlParameter("@SubPrices",Dov.SubPrices),
                new SqlParameter("@Remark",Dov.Remark),
                new SqlParameter("@Oper",Dov.Oper),
                new SqlParameter("@Opdate",Dov.Opdate),
                new SqlParameter("@Isdel",Dov.Isdel)
            };

            if (SqlHelper.ExecuteNonQuery(sql, CommandType.Text, parameter) > 0)
                return true;
            return false;
        }
        //改Update
        public bool Edit(AirGoods Dov)
        {
            string sql = "update AirGoods set Diid=@Diid,Goods=@Goods,Price=@Price,Num=@Num,SubPrices=@SubPrices,Remark=@Remark,"
                + "Oper=@Oper,Opdate=@Opdate,Isdel=@Isdel where Id = @Id";

            SqlParameter[] parameter = new SqlParameter[]{
                new SqlParameter("@Diid",Dov.Diid),
                new SqlParameter("@Goods",Dov.Goods),
                new SqlParameter("@Price",Dov.Price),
                new SqlParameter("@Num",Dov.Num),
                new SqlParameter("@SubPrices",Dov.SubPrices),
                new SqlParameter("@Remark",Dov.Remark),
                new SqlParameter("@Oper",Dov.Oper),
                new SqlParameter("@Opdate",Dov.Opdate),
                new SqlParameter("@Isdel",Dov.Isdel),
                new SqlParameter("@Id",Dov.Id)
            };

            if (SqlHelper.ExecuteNonQuery(sql, CommandType.Text, parameter) > 0)
                return true;
            return false;
        }
        //删
        public bool delOA(int id)
        {
            if (SqlHelper.ExecuteNonQuery("update AirGoods set Isdel=1 where Id=@Id", CommandType.Text, new SqlParameter("@Id", id)) > 0)
                return true;
            return false;
        }

        /// <summary>
        /// 查找所有数据 - 分页
        /// </summary>
        /// <returns></returns>
        public List<AirGoods> GetAll(int diid)
        {
            return excuteSql("select * from AirGoods where Isdel=0 and Diid="+diid);
        }

        public AirGoods getById(int id)
        {
            return excuteType("select * from AirGoods where Isdel=0 and Id=@id", new SqlParameter("@id", id));
        }
    }
}