Dapper扩展之~~~Dapper.Contrib

平台之大势何人能挡？ 带着你的Net飞奔吧！http://www.cnblogs.com/dunitian/p/4822808.html#skill

上一篇文章：Dapper逆天入门~强类型，动态类型，多映射，多返回值，增删改查+存储过程+事物案例演示

 官方地址：https://github.com/StackExchange/dapper-dot-net/tree/master/Dapper.Contrib

实战案例：https://github.com/dunitian/LoTCode/tree/master/PawChina（更新ing）

注意点：Model里面的Table和Key是Dapper.Contrib.Extensions命名空间下的~~~~如果不是~~请看下篇文章（点我）

 

用法很简单，贴一下帮助类：

///
    /// 扩展方法
    ///
    public  abstract  partial  class  DapperDataAsync
    {
        #region 查询系
        ///
        /// 获取Model-Key为int类型
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task GetAsync( int  id, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.GetAsync(id, transaction, commandTimeout);
            }
        }
        ///
        /// 获取Model-Key为long类型
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task GetAsync( long  id, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.GetAsync(id, transaction, commandTimeout);
            }
        }
        ///
        /// 获取Model-Key为Guid类型
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task GetAsync(System.Guid id, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.GetAsync(id, transaction, commandTimeout);
            }
        }
        ///
        /// 获取Model-Key为string类型
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task GetAsync( string  id, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.GetAsync(id, transaction, commandTimeout);
            }
        }
        ///
        /// 获取Model集合（没有Where条件）
        ///
        ///
        ///
        public  static  async Task> GetAllAsync()  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.GetAllAsync();
            }
        }
        #endregion

        #region 增删改
        ///
        /// 插入一个Model
        ///
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task< int > InsertAsync(T model, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                return  await conn.InsertAsync(model, transaction, commandTimeout);
            }
        }

        ///
        /// 更新一个Model
        ///
        ///
        ///
        ///
        ///
        ///
        ///
        public  static  async Task UpdateAsync(T model, IDbTransaction transaction =  null ,  int ? commandTimeout =  null )  where  T :  class ,  new ()
        {
            using  ( var  conn = ConnFactory.GetConnection())
            {
                bool  b = await conn.UpdateAsync(model, transaction, commandTimeout);
                if  (b) {  return  model; }
                else  {  return  null ; }
            }
        }
        #endregion

        #region 分页查询
        ///
        /// 分页查询(为什么不用out，请参考：http://www.cnblogs.com/dunitian/p/5556909.html)
        ///
        /// 查询语句
        /// 动态参数
        /// total语句
        /// Total动态参数
        ///
        public  static  async Task< string > PageLoadAsync( string  sql,  object  p =  null ,  string  sqlTotal =  "" ,  object  p2 =  null )
        {
            var  rows = await QueryAsync(sql.ToString(), p);
            var  total = rows.Count();
            if  (!sqlTotal.IsNullOrWhiteSpace()) { total = await ExecuteScalarAsync< int >(sqlTotal, p2); }
            return  new  { rows = rows, total = total }.ObjectToJson();
        }
        #endregion
    }

 博客地址：http://dnt.dkill.net

本文转自毒逆天博客园博客，原文链接：http://www.cnblogs.com/dunitian/p/5710382.html，如需转载请自行联系原作者