/// <summary>
/// Retrieves data from the data base into a CSLA editable child business object of type <see cref="Category"/>
/// using the criteria provided.
/// </summary>
/// <param name="criteria">Object of type <see cref="CategoryCriteria"/></param>
/// <returns></returns>
private void Child_Fetch(CategoryCriteria criteria)
{
bool cancel = false;
OnChildFetching(criteria, ref cancel);
if (cancel)
{
return;
}
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
using (var command = new SqlCommand("[dbo].[CSLA_Category_Select]", connection))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddRange(ADOHelper.SqlParameters(criteria.StateBag));
command.Parameters.AddWithValue("@p_NameHasValue", criteria.NameHasValue);
command.Parameters.AddWithValue("@p_DescnHasValue", criteria.DescriptionHasValue);
using (var reader = new SafeDataReader(command.ExecuteReader()))
{
if (reader.Read())
{
Map(reader);
}
else
{
throw new Exception(String.Format("The record was not found in 'dbo.Category' using the following criteria: {0}.", criteria));
}
}
}
}
OnChildFetched();
}
/// <summary>
/// Deletes data in the data base using the criteria specified in the CategoryCriteria object.
/// </summary>
/// <param name="criteria">Object of type <see cref="CategoryCriteria"/></param>
/// <returns></returns>
protected void DataPortal_Delete(CategoryCriteria criteria, SqlConnection connection)
{
bool cancel = false;
OnDeleting(criteria, connection, ref cancel);
if (cancel)
{
return;
}
using (var command = new SqlCommand("[dbo].[CSLA_Category_Delete]", connection))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddRange(ADOHelper.SqlParameters(criteria.StateBag));
//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throw new DBConcurrencyException("The entity is out of date on the client.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.");
}
}
OnDeleted();
}
protected override void DataPortal_Execute()
{
string commandText = String.Format("SELECT COUNT(1) FROM {0} {1}", Criteria.TableFullName, ADOHelper.BuildWhereStatement(Criteria.StateBag));
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
using (var command = new SqlCommand(commandText, connection))
{
command.Parameters.AddRange(ADOHelper.SqlParameters(Criteria.StateBag));
Result = (int)command.ExecuteScalar() > 0;
}
}
}
private void Child_Fetch(CategoryCriteria criteria)
{
bool cancel = false;
OnFetching(criteria, ref cancel);
if (cancel)
{
return;
}
RaiseListChangedEvents = false;
// Fetch Child objects.
using (var connection = new SqlConnection(ADOHelper.ConnectionString))
{
connection.Open();
using (var command = new SqlCommand("[dbo].[CSLA_Category_Select]", connection))
{
command.CommandType = CommandType.StoredProcedure;
command.Parameters.AddRange(ADOHelper.SqlParameters(criteria.StateBag));
command.Parameters.AddWithValue("@p_NameHasValue", criteria.NameHasValue);
command.Parameters.AddWithValue("@p_DescnHasValue", criteria.DescriptionHasValue);
using (var reader = new SafeDataReader(command.ExecuteReader()))
{
if (reader.Read())
{
do
{
this.Add(PetShop.Tests.Collections.EditableChild.Category.GetCategory(reader));
} while(reader.Read());
}
}
}
}
RaiseListChangedEvents = true;
OnFetched();
}
