tijian_tieying/web/dccdc.DAL/newsinfoDal.cs

using Dapper;
using dccdc.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace dccdc.DAL
{
    public class newsinfoDal
    {
        public List<newsinfoModel> GetAllTreeList()
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                return conn.Query<newsinfoModel>("select * from news_info", new { @zt = 1 }).ToList();
            }
        }
        public List<newsinfoModel> GetAllList()
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                return conn.Query<newsinfoModel>("select * from news_info where zt=1 ").ToList();
            }
        }

        public List<newsinfoModel> GetListByKey(string key)
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                string sql = "select * from news_info where zt=1";
                if (!string.IsNullOrEmpty(key))
                {
                    sql += " and title like @key";
                }
                return conn.Query<newsinfoModel>(sql, new { key = "%" + key + "%" }).ToList();
            }
        }

        public newsinfoModel GetmodelByName(string name)
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                List<newsinfoModel> model = conn.Query<newsinfoModel>("select * from news_info where title=@name", new { name = name }).ToList();
                if (model.Any())
                {
                    return model[0];
                }
                return null;
            }
        }

        public List<newsinfoModel> GetAllList(string id)
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                string param = "";
                if (id != "")
                {
                    param = " and id=@id";
                }
                param += " order by id desc";
                return conn.Query<newsinfoModel>("select * from news_info where 1=1" + param, new { @id = id }).ToList();
            }
        }

        public bool Add(newsinfoModel model)
        {

            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                string sql = @"INSERT INTO [dbo].[news_info]
                                   ([bt]
                                   ,[nr]
                                   ,[lx]
                                   ,[czy]
                                   ,[sj]
                                   ,[zt]
                                   ,[yd])
                             VALUES
                                   (@bt
                                   ,@nr
                                   ,@lx
                                   ,@czy
                                   ,@sj
                                   ,@zt
                                   ,@yd)";
                return (conn.Execute(sql, model) != 0 ? true : false);
            }
        }

        public bool Update(newsinfoModel model)
        {
            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                string sql = @"UPDATE [dbo].[news_info]
                               SET [bt] = @bt
                                  ,[nr] = @nr
                                  ,[lx] = @lx
                                  ,[czy] = @czy
                                  ,[sj] = @sj
                                  ,[zt] = @zt
                                  ,[yd] = @yd
                             WHERE id=@id";
                return (conn.Execute(sql, model) != 0 ? true : false);
            }
        }

        public object delete(string id)
        {
            string sql = "delete from news_info where id=@id";

            using (IDbConnection conn = CommHelper.GetSqlConnection())
            {
                try
                {
                    int result = conn.Execute(sql, new { id = id });
                    if (result > 0)
                    {
                        return new { State = 1, Message = "操作成功！" };
                    }
                    else
                        return new { State = 0, Message = "操作失败！" };
                }
                catch (Exception ex)
                {
                    return new { State = 0, Message = ex.Message };
                }
            }
        }
    }
}