public static VolumeDiscountCollection LoadForGroup(Int32 groupId, int maximumRows, int startRowIndex, string sortExpression)
{
//CREATE THE DYNAMIC SQL TO LOAD OBJECT
StringBuilder selectQuery = new StringBuilder();
selectQuery.Append("SELECT");
if (maximumRows > 0)
{
selectQuery.Append(" TOP " + (startRowIndex + maximumRows).ToString());
}
selectQuery.Append(" " + VolumeDiscount.GetColumnNames("ac_VolumeDiscounts"));
selectQuery.Append(" FROM ac_VolumeDiscounts, ac_VolumeDiscountGroups");
selectQuery.Append(" WHERE ac_VolumeDiscounts.VolumeDiscountId = ac_VolumeDiscountGroups.VolumeDiscountId");
selectQuery.Append(" AND ac_VolumeDiscountGroups.GroupId = @groupId");
selectQuery.Append(" AND StoreId = @storeId");
if (!string.IsNullOrEmpty(sortExpression))
{
selectQuery.Append(" ORDER BY " + sortExpression);
}
Database database = Token.Instance.Database;
DbCommand selectCommand = database.GetSqlStringCommand(selectQuery.ToString());
database.AddInParameter(selectCommand, "@groupId", System.Data.DbType.Int32, groupId);
database.AddInParameter(selectCommand, "@storeId", System.Data.DbType.Int32, Token.Instance.StoreId);
//EXECUTE THE COMMAND
VolumeDiscountCollection results = new VolumeDiscountCollection();
int thisIndex = 0;
int rowCount = 0;
using (IDataReader dr = database.ExecuteReader(selectCommand))
{
while (dr.Read() && ((maximumRows < 1) || (rowCount < maximumRows)))
{
if (thisIndex >= startRowIndex)
{
VolumeDiscount volumeDiscount = new VolumeDiscount();
VolumeDiscount.LoadDataReader(volumeDiscount, dr);
results.Add(volumeDiscount);
rowCount++;
}
thisIndex++;
}
dr.Close();
}
return(results);
}
/// <summary>
/// Get discounts that apply to a specific product for the current user
/// </summary>
/// <param name="productId">ID of the product to check</param>
/// <returns>Discounts that apply to a specific product for the current user.</returns>
private static VolumeDiscountCollection GetProductDiscountsForProduct(int productId)
{
//INITIALIZE THE RETURN SET
VolumeDiscountCollection availableDiscounts = new VolumeDiscountCollection();
//FIRST GET DISCOUNTS APPLIED DIRECTLY TO PRODUCT
VolumeDiscountCollection productDiscounts = VolumeDiscountDataSource.LoadForProduct(productId);
//TEST DISCOUNTS FOR USER
foreach (VolumeDiscount testDiscount in productDiscounts)
{
if (testDiscount.IsValidForUser(Token.Instance.User))
{
availableDiscounts.Add(testDiscount);
}
}
return(availableDiscounts);
}
public static VolumeDiscountCollection LoadForCriteria(string sqlCriteria, int maximumRows, int startRowIndex, string sortExpression)
{
//CREATE THE DYNAMIC SQL TO LOAD OBJECT
StringBuilder selectQuery = new StringBuilder();
selectQuery.Append("SELECT");
if (maximumRows > 0)
{
selectQuery.Append(" TOP " + (startRowIndex + maximumRows).ToString());
}
selectQuery.Append(" " + VolumeDiscount.GetColumnNames(string.Empty));
selectQuery.Append(" FROM ac_VolumeDiscounts");
string whereClause = string.IsNullOrEmpty(sqlCriteria) ? string.Empty : " WHERE " + sqlCriteria;
selectQuery.Append(whereClause);
if (!string.IsNullOrEmpty(sortExpression))
{
selectQuery.Append(" ORDER BY " + sortExpression);
}
Database database = Token.Instance.Database;
DbCommand selectCommand = database.GetSqlStringCommand(selectQuery.ToString());
//EXECUTE THE COMMAND
VolumeDiscountCollection results = new VolumeDiscountCollection();
int thisIndex = 0;
int rowCount = 0;
using (IDataReader dr = database.ExecuteReader(selectCommand))
{
while (dr.Read() && ((maximumRows < 1) || (rowCount < maximumRows)))
{
if (thisIndex >= startRowIndex)
{
VolumeDiscount volumeDiscount = new VolumeDiscount();
VolumeDiscount.LoadDataReader(volumeDiscount, dr);
results.Add(volumeDiscount);
rowCount++;
}
thisIndex++;
}
dr.Close();
}
return(results);
}
/// <summary>
/// Get discounts that apply to a product by virtue of category assignment.
/// </summary>
/// <param name="productId">The product to check for category discounts</param>
/// <returns>The discounts that apply to a product</returns>
private static VolumeDiscountCollection GetCategoryDiscountsForProduct(int productId)
{
//FIND ALL PRODUCTS THAT ARE A DESCENDANT OF THE CATEGORY
StringBuilder categorySql = new StringBuilder();
categorySql.Append("SELECT DISTINCT CP.ParentLevel,CVD.VolumeDiscountId");
categorySql.Append(" FROM ((ac_CatalogNodes CN INNER JOIN ac_CategoryParents CP ON CN.CategoryId = CP.CategoryId)");
categorySql.Append(" INNER JOIN ac_CategoryVolumeDiscounts CVD ON CP.ParentId = CVD.CategoryId)");
categorySql.Append(" WHERE CN.CatalogNodeId = @productId");
categorySql.Append(" AND CN.CatalogNodeTypeId = 1");
categorySql.Append(" ORDER BY CP.ParentLevel DESC");
//EXECUTE THE QUERY
Database database = Token.Instance.Database;
DbCommand command = database.GetSqlStringCommand(categorySql.ToString());
database.AddInParameter(command, "@productId", System.Data.DbType.Int32, productId);
//BUILD LIST OF VOLUME DISCOUNT IDS APPLICABLE FOR THE USER
User user = Token.Instance.User;
List <int> volumeDiscountIds = new List <int>();
int lastLevel = -1;
bool levelChanged = false;
using (IDataReader dr = database.ExecuteReader(command))
{
while (dr.Read() && !levelChanged)
{
int thisLevel = (int)dr.GetByte(0);
int volumeDiscountId = dr.GetInt32(1);
VolumeDiscount v = VolumeDiscountDataSource.Load(volumeDiscountId);
if (v.IsValidForUser(user))
{
if ((lastLevel > -1) && (lastLevel != thisLevel))
{
levelChanged = true;
}
else
{
volumeDiscountIds.Add(dr.GetInt32(1));
lastLevel = thisLevel;
}
}
}
dr.Close();
}
//INITIALIZE THE RETURN SET
VolumeDiscountCollection discounts = new VolumeDiscountCollection();
//DID WE FIND DISCOUNTS ON A CATEGORY?
if (volumeDiscountIds.Count > 0)
{
//BUILD THE COLLECTION OF DISCOUNTS
foreach (int id in volumeDiscountIds)
{
VolumeDiscount v = VolumeDiscountDataSource.Load(id);
if (v != null)
{
discounts.Add(v);
}
}
}
else
{
//NO DISCOUNT FOUND ON A CATEGORY, RETURN ANY GLOBAL DISCOUNTS
VolumeDiscountCollection globalDiscounts = VolumeDiscountDataSource.LoadGlobal();
foreach (VolumeDiscount v in globalDiscounts)
{
if (v.IsValidForUser(user))
{
discounts.Add(v);
}
}
}
//RETURN ANY CATEGORY DISCOUNTS FOUND
return(discounts);
}
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