using System;
using System.Data;
using System.Data.SqlClient;
using System.Collections;
using AIMSModel;
using AIMSObjectQuery;
using System.Collections.Generic;

namespace AIMSDAL
{
    internal partial class DUserPurview
	{
	    #region 插入实体操作部份
	    /// <summary>
        /// 插入
        /// </summary>
		/// <param name="cmd">Command对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>标识列值或影响的记录行数</returns>
		internal static int Insert(SqlCommand cmd, UserPurview userPurview)
		{
		    cmd.Parameters.Clear();
			cmd.CommandText = "insert into UserPurview (MenuId,RoleId) values (@MenuId,@RoleId);select @@identity";
			//从实体中取出值放入Command的参数列表
			cmd.Parameters.Add(new SqlParameter("@MenuId",userPurview.MenuId.HasValue?(object)userPurview.MenuId.Value:(object)DBNull.Value));
			cmd.Parameters.Add(new SqlParameter("@RoleId",userPurview.RoleId.HasValue?(object)userPurview.RoleId.Value:(object)DBNull.Value));
			return Convert.ToInt32(cmd.ExecuteScalar());
		}
	    /// <summary>
        /// 不使用事务的插入方法
        /// </summary>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>标识列值或影响的记录行数</returns>
	    internal static int Insert(UserPurview userPurview)
		{
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
			{
				conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return Insert(cmd, userPurview);
                }
			}
		}
		
		/// <summary>
        /// 使用事务的插入方法
        /// </summary>
        /// <param name="connection">实现共享Connection的对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>标识列值或影响的记录行数</returns>
        internal static int Insert(Connection connection,UserPurview userPurview)
        {
            return Insert(connection.Command, userPurview);
        }
		#endregion
		
		#region 删除实体操作
		
		/// <summary>
        /// 删除
        /// </summary>
		/// <param name="cmd">Command对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
		internal static int ExcuteDeleteCommand(SqlCommand cmd, UserPurview userPurview)
        {
			cmd.Parameters.Clear();
            cmd.CommandText = "delete from UserPurview where Id=@Id";
            //从实体中取出值放入Command的参数列表
		    cmd.Parameters.Add(new SqlParameter("@Id", userPurview.Id));
            return cmd.ExecuteNonQuery();
        }
		/// <summary>
        /// 不使用事务的删除方法
        /// </summary>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
        internal static int Delete(UserPurview userPurview)
        {
            using (SqlConnection conn = new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteDeleteCommand(cmd, userPurview);
                }
            }
        }
		/// <summary>
        /// 使用事务的删除方法
        /// </summary>
        /// <param name="connection">实现共享Connection的对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
        internal static int Delete(Connection connection,UserPurview userPurview)
        {
            return  ExcuteDeleteCommand(connection.Command, userPurview);
		}
		
		/// <summary>
        /// 执行删除命令
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int ExcuteDeleteCommand(SqlCommand cmd, string oql, ParameterList parameters)
        {
            //解析过滤部份Sql语句
            string filterString = SyntaxAnalyzer.ParseSql(oql, new UserPurviewMap());
            if (filterString != string.Empty)
            {
                filterString = " where " + filterString;
            }
            cmd.Parameters.Clear();
            cmd.CommandText = "delete from UserPurview " + filterString;
            //添加参数
            if (parameters != null)
            {
                foreach (string key in parameters.Keys)
                {
                    cmd.Parameters.Add(new SqlParameter(key, parameters[key]));
                }
            }
            return cmd.ExecuteNonQuery();
        }
		
		/// <summary>
        /// 不使用事务的删除方法
        /// </summary>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int Delete(string oql, ParameterList parameters)
        {
            using (SqlConnection conn = new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteDeleteCommand(cmd, oql, parameters);
                }
            }
        }
		
		/// <summary>
        /// 使用事务的删除方法
        /// </summary>
        /// <param name="connection">实现共享Connection的对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int Delete(Connection connection, string oql, ParameterList parameters)
        {
            return ExcuteDeleteCommand(connection.Command, oql, parameters);
        }
		
		#endregion
		
		#region 更新实体操作
		
		/// <summary>
        /// 更新
        /// </summary>
		/// <param name="cmd">Command对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
		internal static int ExcuteUpdateCommand(SqlCommand cmd, UserPurview userPurview)
		{
		    cmd.CommandText = "update UserPurview set MenuId=@MenuId,RoleId=@RoleId where Id=@Id";
			//从实体中取出值放入Command的参数列表
			cmd.Parameters.Add(new SqlParameter("@MenuId",userPurview.MenuId.HasValue?(object)userPurview.MenuId.Value:(object)DBNull.Value));
			cmd.Parameters.Add(new SqlParameter("@RoleId",userPurview.RoleId.HasValue?(object)userPurview.RoleId.Value:(object)DBNull.Value));
			cmd.Parameters.Add(new SqlParameter("@Id", userPurview.Id));
            return cmd.ExecuteNonQuery();
		}
		
		/// <summary>
        /// 不使用事务的更新方法
        /// </summary>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
	    internal static int Update(UserPurview userPurview)
		{
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
			{
				conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteUpdateCommand(cmd, userPurview);
                }
			}
		}
		/// <summary>
        /// 使用事务的更新方法
        /// </summary>
        /// <param name="connection">实现共享Connection的对象</param>
        /// <param name="userPurview">实体类对象</param>
        /// <returns>影响的记录行数</returns>
        internal static int Update(Connection connection,UserPurview userPurview)
        {
            return ExcuteUpdateCommand(connection.Command, userPurview);
		}
		/// <summary>
        /// 执行更新命令
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int ExcuteUpdateCommand(SqlCommand cmd, string oql, ParameterList parameters)
        {
            //解析过滤部份Sql语句
            string updateString = SyntaxAnalyzer.ParseSql(oql, new UserPurviewMap());
            cmd.CommandText = "update UserPurview set " + updateString;
			cmd.Parameters.Clear();
            //添加参数
            if (parameters != null)
            {
                foreach (string key in parameters.Keys)
                {
                    cmd.Parameters.Add(new SqlParameter(key, parameters[key]));
                }
            }
            return cmd.ExecuteNonQuery();
        }
		
		/// <summary>
        /// 不使用事务的更新方法
        /// </summary>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int Update(string oql, ParameterList parameters)
        {
            using (SqlConnection conn = new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteUpdateCommand(cmd, oql, parameters);
                }
            }
        }
		
		/// <summary>
        /// 使用事务的更新方法
        /// </summary>
        /// <param name="connection">实现共享Connection的对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>影响的记录行数</returns>
        internal static int Update(Connection connection, string oql, ParameterList parameters)
        {
            return ExcuteUpdateCommand(connection.Command, oql, parameters);
        }
		#endregion
		
		#region 查询实体集合
		/// <summary>
        /// 执行Command获取对象列表
        /// </summary>
        /// <param name="cmd">Command对象</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象列表</returns>
        internal static List<UserPurview> ExcuteSelectCommand(SqlCommand cmd,RecursiveType recursiveType,int recursiveDepth)
        {
            List<UserPurview> userPurviewList = new List<UserPurview>();
            using (SqlDataReader dr = cmd.ExecuteReader())
            {
                while (dr.Read())
                {
                    UserPurview userPurview = DataReaderToEntity(dr);
                    userPurviewList.Add(userPurview);
                }
            }
			return userPurviewList;
        }
		/// <summary>
        /// 执行查询命令
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> ExcuteSelectCommand(SqlCommand cmd, string oql, ParameterList parameters,RecursiveType recursiveType,int recursiveDepth)
        {
            //解析过滤部份Sql语句
            string filterString = SyntaxAnalyzer.ParseSql(oql, new UserPurviewMap());
            if (filterString != string.Empty)
            {
				if(filterString.Trim().ToLower().IndexOf("order ")!=0)
                	filterString = " where " + filterString;
            }
            cmd.Parameters.Clear();
            cmd.CommandText = "select * from UserPurview " + filterString;
            //添加参数
            if (parameters != null)
            {
                foreach (string key in parameters.Keys)
                {
                    cmd.Parameters.Add(new SqlParameter(key, parameters[key]));
                }
            }
            return ExcuteSelectCommand(cmd, recursiveType, recursiveDepth);
        }
		
		/// <summary>
        /// 根据对象查询语句查询实体集合
        /// </summary>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> Select()
        {
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = "select * from UserPurview";
                    return ExcuteSelectCommand(cmd, RecursiveType.Parent, 1);
                }
            }
        }
		/// <summary>
        /// 根据对象查询语句查询实体集合
        /// </summary>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> Select(RecursiveType recursiveType, int recursiveDepth)
        {
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    cmd.CommandText = "select * from UserPurview";
                    return ExcuteSelectCommand(cmd, recursiveType, recursiveDepth);
                }
            }
        }
		
		/// <summary>
        /// 根据对象查询语句查询实体集合
        /// </summary>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> Select(string oql, ParameterList parameters)
        {
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteSelectCommand(cmd, oql, parameters, RecursiveType.Parent, 1);
                }
            }
        }
		
		/// <summary>
        /// 根据对象查询语句查询实体集合
        /// </summary>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> Select(string oql, ParameterList parameters,RecursiveType recursiveType, int recursiveDepth)
        {
			using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteSelectCommand(cmd, oql, parameters, recursiveType, recursiveDepth);
                }
            }
        }
		
		/// <summary>
        /// 根据对象查询语句查询实体集合（启用事务）
        /// </summary>
        /// <param name="connection">连接对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象集合</returns>
        internal static List<UserPurview> Select(Connection connection, string oql, ParameterList parameters, RecursiveType recursiveType, int recursiveDepth)
        {
            return ExcuteSelectCommand(connection.Command, oql, parameters,recursiveType, recursiveDepth);
        }
		#endregion
		
		#region 查询单个实体
		
		/// <summary>
        /// 递归查询单个实体
        /// </summary>
        /// <param name="cmd">Command对象</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体对象</returns>
		internal static UserPurview ExcuteSelectSingleCommand(SqlCommand cmd,RecursiveType recursiveType,int recursiveDepth)
		{
			UserPurview userPurview=null;
			using (SqlDataReader dr = cmd.ExecuteReader())
            {
			    if(dr.Read())
				    userPurview = DataReaderToEntity(dr);
			}
			if(userPurview==null)
			    return userPurview;
            return userPurview;
		}
		/// <summary>
        /// 更据对象查询语句递归查询单个实体
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体对象</returns>
        internal static UserPurview ExcuteSelectSingleCommand(SqlCommand cmd, string oql, ParameterList parameters,RecursiveType recursiveType,int recursiveDepth)
        {
            //解析过滤部份Sql语句
            string filterString = SyntaxAnalyzer.ParseSql(oql, new UserPurviewMap());
			if(filterString!=string.Empty)
			{
			    filterString=" where "+filterString;
			}
            cmd.CommandText = "select * from UserPurview " + filterString;
			cmd.Parameters.Clear();
            //添加参数
            if (parameters != null)
            {
                foreach (string key in parameters.Keys)
                {
                    cmd.Parameters.Add(new SqlParameter(key, parameters[key]));
                }
            }
            return ExcuteSelectSingleCommand(cmd, recursiveType, recursiveDepth);
        }
				
		/// <summary>
        /// 更据对象查询语句递归查询单个实体
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体对象</returns>
        internal static UserPurview SelectSingle(string oql, ParameterList parameters, RecursiveType recursiveType, int recursiveDepth)
        {
            using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return ExcuteSelectSingleCommand(cmd, oql, parameters, recursiveType, recursiveDepth);
                }   
            } 
        }
		
		/// <summary>
        /// 更据对象查询语句查询单个实体
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>实体对象</returns>
        internal static UserPurview SelectSingle(string oql, ParameterList parameters)
        {
            return SelectSingle(oql,parameters,RecursiveType.Parent,1);
        }
		
		/// <summary>
        /// 更据对象查询语句并启用事务查询单个实体
        /// </summary>
        /// <param name="connection">连接对象</param>
        /// <param name="oql">对象查询语句</param>
        /// <param name="parameters">参数列表</param>
        /// <returns>实体对象</returns>
        internal static UserPurview SelectSingle(Connection connection, string oql, ParameterList parameters, RecursiveType recursiveType, int recursiveDepth)
        {
            return ExcuteSelectSingleCommand(connection.Command, oql, parameters, recursiveType, recursiveDepth);
        }
		
		/// <summary>
        /// 更据主键值递归查询单个实体
        /// </summary>
        /// <param name="cmd">Command对象</param>
        /// <param name="id">主键值</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体对象</returns>
        internal static UserPurview SelectSingle(SqlCommand cmd, int? id,RecursiveType recursiveType,int recursiveDepth)
		{
		    cmd.Parameters.Clear();
			if(id.HasValue)
			{
		    	cmd.CommandText = "select * from UserPurview where Id=@pk";
				cmd.Parameters.Add(new SqlParameter("@pk",id.Value));
			}
			else
			{
			    cmd.CommandText = "select * from UserPurview where Id is null";
			}
			return ExcuteSelectSingleCommand(cmd, recursiveType, recursiveDepth);
		}
		
		/// <summary>
        /// 按主键字段查询特定实体
        /// </summary>
        /// <param name="id">主键值</param>
        /// <returns>实体类对象</returns>
        internal static UserPurview SelectSingle(int? id)
        {
            using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return SelectSingle(cmd,id,RecursiveType.Parent,1);
                }   
            } 
        }
		/// <summary>
        /// 按主键字段查询特定实体
        /// </summary>
        /// <param name="id">主键值</param>
		/// <param name="recursiveType">递归类型</param>
        /// <param name="recursiveDepth">递归深度</param>
        /// <returns>实体类对象</returns>
        internal static UserPurview SelectSingle(int? id, RecursiveType recursiveType, int recursiveDepth)
        {
            using(SqlConnection conn=new SqlConnection(Connection.ConnectionString))
            {
                conn.Open();
                using (SqlCommand cmd = conn.CreateCommand())
                {
                    return SelectSingle(cmd,id, recursiveType, recursiveDepth);
                }   
            } 
        }
		
		/// <summary>
        /// 使用事务并按主键字段查询特定实体
        /// </summary>
		/// <param name="connection">连接对象</param>
        /// <param name="id">主键值</param>
        /// <returns>实体类对象</returns>
        internal static UserPurview SelectSingle(Connection connection,int? id, RecursiveType recursiveType, int recursiveDepth)
        {
			return SelectSingle(connection.Command, id, recursiveType, recursiveDepth);
        }
		#endregion
		
				
		/// <summary>
        /// 从DataReader中取出值生成实体对象
        /// </summary>
        /// <param name="searcher">查询对象</param>
        /// <returns>过滤条件字符串</returns>
		private static UserPurview DataReaderToEntity(SqlDataReader dr)
		{
		    UserPurview entity = new UserPurview ();
			if(dr["Id"]!=System.DBNull.Value)
			{
			    entity.Id=Convert.ToInt32(dr["Id"]);
			}
			if(dr["MenuId"]!=System.DBNull.Value)
			{
			    entity.MenuId=Convert.ToInt32(dr["MenuId"]);
			}
			if(dr["RoleId"]!=System.DBNull.Value)
			{
			    entity.RoleId=Convert.ToInt32(dr["RoleId"]);
			}
			return entity;
		}
	}
}