OA2021/DAL/TicketService.cs

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

namespace DAL
{
    public class TicketService
    {
        /// <summary>
        /// 查询所有
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回集合</returns>
        List<Ticket> excuteSql(string sql, params SqlParameter[] param)
        {
            return ServiceBase<Ticket>.excuteSql(new Ticket(), "Ticket", sql, CommandType.Text, param);
        }


        /// <summary>
        /// 获取单个对象
        /// </summary>
        /// <param name="sql">sql语句</param>
        /// <param name="param">可变参数数组</param>
        /// <returns>返回空或者单个对象</returns>
        Ticket excuteType(string sql, params SqlParameter[] param)
        {
            //查询结果放入对象集合
            List<Ticket> vList = excuteSql(sql, param);
            //判断集合是否为空
            if (vList == null || vList.Count == 0)
                //返回null
                return null;
            //返回单个对象
            return vList[0];
        }

        /// <summary>
        /// 增加
        /// </summary>
        /// <returns></returns>
        public bool AddTicketInfo(Ticket r)
        {
            string sql = "insert into Ticket values(@Country,@Area,@ScenicSpot,@Address,@Contact,@Price,@Currency,@Star,@StartDate,@Remark,@IsDel)";

            SqlParameter[] parameter = new SqlParameter[]{
                new SqlParameter("@Country",r.Country),
                new SqlParameter("@Area",r.Area),
                new SqlParameter("@ScenicSpot",r.ScenicSpot),
                new SqlParameter("@Address",r.Address),
                new SqlParameter("@Contact",r.Contact),
                new SqlParameter("@Price",r.Price),
                new SqlParameter("@Currency",r.Currency),
                new SqlParameter("@Star",r.Star),
                new SqlParameter("@StartDate",r.StartDate),
                new SqlParameter("@Remark",r.Remark),  
                new SqlParameter("@IsDel",r.IsDel)
            };
            if (SqlHelper.ExecuteNonQuery(sql, CommandType.Text, parameter) > 0)                                                                        
                return true;
            return false;
        }

        /// <summary>
        /// 获取全部 - 分页
        /// </summary>
        /// <returns></returns>
        public List<Ticket> GetTicketInfo(int pageIndex, out int sumPage, out int totalRecord, string txtWhere)
        {
            string sqlwhere = null;
            if (txtWhere == null || txtWhere == "")
            {
                sqlwhere = " IsDel = 0";
            }
            else
            {
                sqlwhere = " IsDel = 0 or Country like '%" + txtWhere + "%' or Area like '%" + txtWhere + "%' or ScenicSpot like '%" + txtWhere + "%'";
            }

            return PageBase<Ticket>.excutePageSql(new Ticket(), "Ticket", "Ticket", "*", "Star desc", sqlwhere, 20, pageIndex, out sumPage, out totalRecord);
        }
                                                                                                  
        public bool Del(int id)
        {
            if (SqlHelper.ExecuteNonQuery("update Ticket set IsDel = 1 where Id = @Id", CommandType.Text, new SqlParameter("@Id", id)) >0)
                return true;
            return false;
        }

        /// <summary>
        /// 编辑
        /// </summary>
        /// <returns></returns>
        public bool EditTicket(Ticket r)
        {
            string sql = "update Ticket set Country = @Country,Area = @Area,ScenicSpot = @ScenicSpot,Address = @Address,Contact = @Contact,Price = @Price,Currency = @Currency,Star = @Star,StartDate = @StartDate,Remark = @Remark where Id = @Id";

            SqlParameter[] parameter = new SqlParameter[]{
                new SqlParameter("@Country",r.Country),
                new SqlParameter("@Area",r.Area),
                new SqlParameter("@ScenicSpot",r.ScenicSpot),
                new SqlParameter("@Address",r.Address),
                new SqlParameter("@Contact",r.Contact),
                new SqlParameter("@Price",r.Price),
                new SqlParameter("@Currency",r.Currency),
                new SqlParameter("@Star",r.Star),
                new SqlParameter("@StartDate",r.StartDate),
                new SqlParameter("@Remark",r.Remark),
                new SqlParameter("@Id",r.Id)
           };

            if (SqlHelper.ExecuteNonQuery(sql, CommandType.Text, parameter) > 0)
                return true;
            return false;
        }

        public Ticket GetTicketByID(int id)
        {
            //调用获取单个对象的方法
            return excuteType("select * from Ticket where Id = @id and isdel=0", new SqlParameter("@id", id));
        }
    }
}