/// <summary>
/// Inserts a PetShop.Business.Product object into the datasource using a transaction.
/// </summary>
/// <param name="transactionManager"><see cref="TransactionManager"/> object</param>
/// <param name="entity">PetShop.Business.Product object to insert.</param>
/// <remarks>
/// After inserting into the datasource, the PetShop.Business.Product object will be updated
/// to refelect any changes made by the datasource. (ie: identity or computed columns)
/// </remarks>
/// <returns>Returns true if operation is successful.</returns>
/// <exception cref="System.Exception">The command could not be executed.</exception>
/// <exception cref="System.Data.DataException">The <paramref name="transactionManager"/> is not open.</exception>
/// <exception cref="System.Data.Common.DbException">The command could not be executed.</exception>
public override bool Insert(TransactionManager transactionManager, PetShop.Business.Product entity)
{
SqlDatabase database = new SqlDatabase(this._connectionString);
DbCommand commandWrapper = StoredProcedureProvider.GetCommandWrapper(database, "dbo.Product_Insert", _useStoredProcedure);
database.AddInParameter(commandWrapper, "@ProductId", DbType.AnsiString, entity.ProductId);
database.AddInParameter(commandWrapper, "@CategoryId", DbType.AnsiString, entity.CategoryId);
database.AddInParameter(commandWrapper, "@Name", DbType.AnsiString, entity.Name);
database.AddInParameter(commandWrapper, "@Descn", DbType.AnsiString, entity.Descn);
database.AddInParameter(commandWrapper, "@Image", DbType.AnsiString, entity.Image);
int results = 0;
//Provider Data Requesting Command Event
OnDataRequesting(new CommandEventArgs(commandWrapper, "Insert", entity));
if (transactionManager != null)
{
results = Utility.ExecuteNonQuery(transactionManager, commandWrapper);
}
else
{
results = Utility.ExecuteNonQuery(database, commandWrapper);
}
entity.OriginalProductId = entity.ProductId;
entity.AcceptChanges();
//Provider Data Requested Command Event
OnDataRequested(new CommandEventArgs(commandWrapper, "Insert", entity));
return(Convert.ToBoolean(results));
}
protected override void DataPortal_Update()
{
bool cancel = false;
OnUpdating(ref cancel);
if (cancel) return;
if(OriginalProductId != ProductId)
{
// Insert new child.
Product item = new Product {ProductId = ProductId, CategoryId = CategoryId, Name = Name, Description = Description, Image = Image};
item = item.Save();
// Mark editable child lists as dirty. This code may need to be updated to one-to-one relationships.
foreach(Item itemToUpdate in Items)
{
itemToUpdate.ProductId = ProductId;
}
// Create a new connection.
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
FieldManager.UpdateChildren(this, connection);
}
// Delete the old.
var criteria = new ProductCriteria {ProductId = OriginalProductId};
DataPortal_Delete(criteria);
// Mark the original as the new one.
OriginalProductId = ProductId;
OnUpdated();
return;
}
const string commandText = "UPDATE [dbo].[Product] SET [ProductId] = @p_ProductId, [CategoryId] = @p_CategoryId, [Name] = @p_Name, [Descn] = @p_Descn, [Image] = @p_Image WHERE [ProductId] = @p_OriginalProductId; SELECT [ProductId] FROM [dbo].[Product] WHERE [ProductId] = @p_OriginalProductId";
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
using(var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddWithValue("@p_OriginalProductId", this.OriginalProductId);
command.Parameters.AddWithValue("@p_ProductId", this.ProductId);
command.Parameters.AddWithValue("@p_CategoryId", this.CategoryId);
command.Parameters.AddWithValue("@p_Name", ADOHelper.NullCheck(this.Name));
command.Parameters.AddWithValue("@p_Descn", ADOHelper.NullCheck(this.Description));
command.Parameters.AddWithValue("@p_Image", ADOHelper.NullCheck(this.Image));
//result: The number of rows changed, inserted, or deleted. -1 for select statements; 0 if no rows were affected, or the statement failed.
int result = command.ExecuteNonQuery();
if (result == 0)
throw new DBConcurrencyException("The entity is out of date on the client. Please update the entity and try again. This could also be thrown if the sql statement failed to execute.");
LoadProperty(_originalProductIdProperty, this.ProductId);
}
FieldManager.UpdateChildren(this, connection);
}
OnUpdated();
}
private void Child_Update(Product product, Supplier supplier, SqlConnection connection)
{
bool cancel = false;
OnChildUpdating(product, supplier, connection, ref cancel);
if (cancel) return;
if(connection.State != ConnectionState.Open) connection.Open();
const string commandText = "UPDATE [dbo].[Item] SET [ItemId] = @p_ItemId, [ProductId] = @p_ProductId, [ListPrice] = @p_ListPrice, [UnitCost] = @p_UnitCost, [Supplier] = @p_Supplier, [Status] = @p_Status, [Name] = @p_Name, [Image] = @p_Image WHERE [ItemId] = @p_OriginalItemId; SELECT [ItemId] FROM [dbo].[Item] WHERE [ItemId] = @p_OriginalItemId";
using(var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddWithValue("@p_OriginalItemId", this.OriginalItemId);
command.Parameters.AddWithValue("@p_ItemId", this.ItemId);
command.Parameters.AddWithValue("@p_ProductId", product != null ? product.ProductId : this.ProductId);
command.Parameters.AddWithValue("@p_ListPrice", ADOHelper.NullCheck(this.ListPrice));
command.Parameters.AddWithValue("@p_UnitCost", ADOHelper.NullCheck(this.UnitCost));
command.Parameters.AddWithValue("@p_Supplier", ADOHelper.NullCheck(supplier != null ? supplier.SuppId : this.Supplier));
command.Parameters.AddWithValue("@p_Status", ADOHelper.NullCheck(this.Status));
command.Parameters.AddWithValue("@p_Name", ADOHelper.NullCheck(this.Name));
command.Parameters.AddWithValue("@p_Image", ADOHelper.NullCheck(this.Image));
// result: The number of rows changed, inserted, or deleted. -1 for select statements; 0 if no rows were affected, or the statement failed.
int result = command.ExecuteNonQuery();
if (result == 0)
throw new DBConcurrencyException("The entity is out of date on the client. Please update the entity and try again. This could also be thrown if the sql statement failed to execute.");
// Update foreign keys values. This code will update the values passed in from the parent only if no errors occurred after executing the query.
if(product != null && product.ProductId != this.ProductId)
LoadProperty(_productIdProperty, product.ProductId);
// Update foreign keys values. This code will update the values passed in from the parent only if no errors occurred after executing the query.
if(supplier != null && supplier.SuppId != this.Supplier)
LoadProperty(_supplierProperty, supplier.SuppId);
// Update non-identity primary key value.
LoadProperty(_originalItemIdProperty, this.ItemId);
}
// A child relationship exists on this Business Object but its type is not a child type (E.G. EditableChild).
// TODO: Please override OnChildUpdated() and update this child manually.
// FieldManager.UpdateChildren(this, connection);
OnChildUpdated();
}
private void Child_Update(Product product, SqlConnection connection)
{
Child_Update(product, null, connection);
}
private void Child_Insert(Product product, SqlConnection connection)
{
Child_Insert(product, null, connection);
}
