// 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, ProductHistoryDataOrdinals ordinals)
{
if (!reader.IsDBNull(ordinals.ProductId))
{
ProductId = reader.GetGuid(ordinals.ProductId);
}
if (!reader.IsDBNull(ordinals.ProductName))
{
ProductName = reader.GetString(ordinals.ProductName);
}
if (!reader.IsDBNull(ordinals.StateName))
{
StateName = reader.GetString(ordinals.StateName);
}
if (!reader.IsDBNull(ordinals.DateTime))
{
DateTime = reader.GetDateTime(ordinals.DateTime);
}
if (!reader.IsDBNull(ordinals.UserName))
{
UserName = reader.GetString(ordinals.UserName);
}
if (!reader.IsDBNull(ordinals.ProductBecameId))
{
ProductBecameId = reader.GetGuid(ordinals.ProductBecameId);
}
}
/// <summary>Get product history</summary>
/// <cardinality>Many</cardinality>
public List <ProductHistoryData> ProductHistory(
Guid productId
)
{
var ret = new List <ProductHistoryData>();
string sql = @"
select
p.product_id
,p.product_name
,sr.default_state_name as state_name
,p.date_time
,u.default_user_name as user_name
,p.product_became_id
from product as p
inner join default_user as u on u.default_user_id = p.user_id
inner join default_state_ref as sr on sr.default_state_rcd = p.state_rcd
where p.product_id = @product_id
order by p.date_time
";
using (var conn = new SqlConnection(ConfigurationManager.AppSettings["Conn"])) {
conn.Open();
using (var command = new SqlCommand(sql, conn)) {
command.Parameters.Add("@product_id", SqlDbType.UniqueIdentifier).Value = productId;
IDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult);
var ordinals = new ProductHistoryDataOrdinals(reader);
while (reader.Read())
{
var data = new ProductHistoryData();
data.Populate(reader, ordinals);
ret.Add(data);
}
reader.Close();
}
return(ret);
}
}
