/// <summary>
        /// Get Product Attribute
        /// links:
        ///  docLink: http://sql2x.org/documentationLink/06760f02-f3ec-45ad-bbfe-db43d7a0378f
        /// </summary>
        /// <template>DotNetFrameworkWithDurian</template>
        /// <cardinality>Many</cardinality>
        public List <ProductMaintenanceAttributeIndexWithFilterData> ProductMaintenanceAttributeIndexWithFilter(
            System.Guid productId
            )
        {
            var    ret = new List <ProductMaintenanceAttributeIndexWithFilterData>();
            string sql = @"
select 
     [p].product_name
    ,[par].product_attribute_name
    ,[paur].product_attribute_unit_name
    ,[du].default_user_name
    ,[p].state_rcd
    ,[pa].product_id
    ,[pa].product_attribute_rcd
    ,[pa].product_attribute_unit_rcd
    ,[pa].value
    ,[pa].user_id
    ,[pa].date_time
    ,[pa].product_attribute_id
from product_attribute as [pa]
inner join product as [p] on [p].product_id = [pa].product_id
inner join product_attribute_ref as [par] on [par].product_attribute_rcd = [pa].product_attribute_rcd
left join product_attribute_unit_ref as [paur] on [paur].product_attribute_unit_rcd = [pa].product_attribute_unit_rcd
inner join default_user as [du] on [du].default_user_id = [pa].user_id

where 1 = 1
";

            using (var conn = new SqlConnection(ConfigurationManager.AppSettings["Conn"])) {
                conn.Open();

                using (var command = new SqlCommand(sql, conn)) {
                    if (productId != Guid.Empty)
                    {
                        command.Parameters.Add("@product_id", SqlDbType.UniqueIdentifier).Value = (System.Guid)productId;
                        sql += " and [pa].product_id = @product_id";
                    }

                    command.CommandText = sql;

                    // Logging log = Logging.PerformanceTimeStart("ProductMaintenanceAttributeIndexWithFilter");
                    IDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult);
                    // log.PerformanceTimeStop(sql, command);

                    var ordinals = new ProductMaintenanceAttributeIndexWithFilterDataOrdinals(reader);

                    while (reader.Read())
                    {
                        var data = new ProductMaintenanceAttributeIndexWithFilterData();
                        data.Populate(reader, ordinals);
                        ret.Add(data);
                    }

                    reader.Close();
                }

                return(ret);
            }
        }
 // use ordinals to speed up access to DataReader
 // links:
 //  docLink: http://sql2x.org/documentationLink/327451c3-64a8-4de8-b359-76742d634497
 // parameters:
 //  reader: IDataReader from SQLClient
 public void Populate(IDataReader reader, ProductMaintenanceAttributeIndexWithFilterDataOrdinals ordinals)
 {
     if (!reader.IsDBNull(ordinals.ProductName))
     {
         ProductName = reader.GetString(ordinals.ProductName);
     }
     if (!reader.IsDBNull(ordinals.ProductAttributeName))
     {
         ProductAttributeName = reader.GetString(ordinals.ProductAttributeName);
     }
     if (!reader.IsDBNull(ordinals.ProductAttributeUnitName))
     {
         ProductAttributeUnitName = reader.GetString(ordinals.ProductAttributeUnitName);
     }
     if (!reader.IsDBNull(ordinals.DefaultUserName))
     {
         DefaultUserName = reader.GetString(ordinals.DefaultUserName);
     }
     if (!reader.IsDBNull(ordinals.StateRcd))
     {
         StateRcd = reader.GetString(ordinals.StateRcd);
     }
     if (!reader.IsDBNull(ordinals.ProductId))
     {
         ProductId = reader.GetGuid(ordinals.ProductId);
     }
     if (!reader.IsDBNull(ordinals.ProductAttributeRcd))
     {
         ProductAttributeRcd = reader.GetString(ordinals.ProductAttributeRcd);
     }
     if (!reader.IsDBNull(ordinals.ProductAttributeUnitRcd))
     {
         ProductAttributeUnitRcd = reader.GetString(ordinals.ProductAttributeUnitRcd);
     }
     if (!reader.IsDBNull(ordinals.Value))
     {
         Value = reader.GetString(ordinals.Value);
     }
     if (!reader.IsDBNull(ordinals.UserId))
     {
         UserId = reader.GetGuid(ordinals.UserId);
     }
     if (!reader.IsDBNull(ordinals.DateTime))
     {
         DateTime = reader.GetDateTime(ordinals.DateTime);
     }
     if (!reader.IsDBNull(ordinals.ProductAttributeId))
     {
         ProductAttributeId = reader.GetGuid(ordinals.ProductAttributeId);
     }
 }