// 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, ProductSearchByCategoryCodeDataOrdinals 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.Identifier))
{
Identifier = reader.GetString(ordinals.Identifier);
}
if (!reader.IsDBNull(ordinals.Value))
{
Value = reader.GetString(ordinals.Value);
}
if (!reader.IsDBNull(ordinals.ProductInfoValue))
{
ProductInfoValue = reader.GetString(ordinals.ProductInfoValue);
}
if (!reader.IsDBNull(ordinals.ProductImageTypeRcd))
{
ProductImageTypeRcd = reader.GetString(ordinals.ProductImageTypeRcd);
}
if (!reader.IsDBNull(ordinals.ProductImageTypeName))
{
ProductImageTypeName = reader.GetString(ordinals.ProductImageTypeName);
}
if (!reader.IsDBNull(ordinals.Image))
{
Image = (System.Byte[])reader[ordinals.Image];
}
}
/// <summary>Search products by category</summary>
/// <cardinality>Many</cardinality>
public List <ProductSearchByCategoryCodeData> ProductSearchByCategoryCode(
String productCategoryCode,
bool onParent
)
{
var ret = new List <ProductSearchByCategoryCodeData>();
string sql = @"
select
p.product_id
,p.product_name
,( select top 1 pid.identifier
from product_identifier as pid
where pid.product_id = p.product_id
order by pid.date_time
) as identifier
,( select top 1 pa.value
from product_attribute as pa
where pa.product_id = p.product_id
order by pa.date_time
) as value
,( select top 1 pi.product_info_value
from product_info as pi
where pi.product_id = p.product_id
order by pi.date_time
) as product_info_value
,( select top 1 pi.product_image_type_rcd
from product_image as pi
where pi.product_id = p.product_id
order by pi.date_time
) as product_image_type_rcd
,( select top 1 pi.product_image_type_rcd
from product_image as pi
inner join product_image_type_ref as pit on pit.product_image_type_rcd = pi.product_image_type_rcd
where pi.product_id = p.product_id
order by pi.date_time
) as product_image_type_name
,( select top 1 pi.image
from product_image as pi
where pi.product_id = p.product_id
order by pi.date_time
) as image
from product as p
inner join product_category_mapping as pcm on pcm.product_id = p.product_id
inner join product_category as pc on pc.product_category_id = pcm.product_category_id
left join product_category as pcp on pcp.product_category_id = pc.product_category_parent_id
--realwhere
where pc.product_category_code = @product_category_code
and p.product_became_id is null
";
if (onParent)
{
sql += " or pcp.product_category_code = @product_category_code\r\n";
}
sql += " order by p.product_name, identifier\r\n";
using (var conn = new SqlConnection(ConfigurationManager.AppSettings["Conn"])) {
conn.Open();
using (var command = new SqlCommand(sql, conn)) {
command.Parameters.Add("@product_category_code", SqlDbType.NVarChar).Value = productCategoryCode;
IDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult);
var ordinals = new ProductSearchByCategoryCodeDataOrdinals(reader);
while (reader.Read())
{
var data = new ProductSearchByCategoryCodeData();
data.Populate(reader, ordinals);
ret.Add(data);
}
reader.Close();
}
return(ret);
}
}
