/// <summary>
/// Update an existing row in the datasource.
/// </summary>
/// <param name="transactionManager"><see cref="TransactionManager"/> object</param>
/// <param name="entity">School.Entities.Students object to update.</param>
/// <remarks>
/// After updating the datasource, the School.Entities.Students 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 Update(TransactionManager transactionManager, School.Entities.Students entity)
{
SqlDatabase database = new SqlDatabase(this._connectionString);
DbCommand commandWrapper = StoredProcedureProvider.GetCommandWrapper(database, "dbo.Students_Update", _useStoredProcedure);
database.AddInParameter(commandWrapper, "@Id", DbType.Int32, entity.Id);
database.AddInParameter(commandWrapper, "@Name", DbType.String, entity.Name);
database.AddInParameter(commandWrapper, "@Address", DbType.String, entity.Address);
database.AddInParameter(commandWrapper, "@ClassId", DbType.Int32, entity.ClassId);
database.AddInParameter(commandWrapper, "@Birthdate", DbType.Date, entity.Birthdate);
database.AddInParameter(commandWrapper, "@Gender", DbType.String, entity.Gender);
int results = 0;
//Provider Data Requesting Command Event
OnDataRequesting(new CommandEventArgs(commandWrapper, "Update", entity));
if (transactionManager != null)
{
results = Utility.ExecuteNonQuery(transactionManager, commandWrapper);
}
else
{
results = Utility.ExecuteNonQuery(database, commandWrapper);
}
//Stop Tracking Now that it has been updated and persisted.
if (DataRepository.Provider.EnableEntityTracking)
{
EntityManager.StopTracking(entity.EntityTrackingKey);
}
entity.AcceptChanges();
//Provider Data Requested Command Event
OnDataRequested(new CommandEventArgs(commandWrapper, "Update", entity));
return(Convert.ToBoolean(results));
}
/// <summary>
/// Inserts a School.Entities.Students object into the datasource using a transaction.
/// </summary>
/// <param name="transactionManager"><see cref="TransactionManager"/> object</param>
/// <param name="entity">School.Entities.Students object to insert.</param>
/// <remarks>
/// After inserting into the datasource, the School.Entities.Students 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, School.Entities.Students entity)
{
SqlDatabase database = new SqlDatabase(this._connectionString);
DbCommand commandWrapper = StoredProcedureProvider.GetCommandWrapper(database, "dbo.Students_Insert", _useStoredProcedure);
database.AddOutParameter(commandWrapper, "@Id", DbType.Int32, 4);
database.AddInParameter(commandWrapper, "@Name", DbType.String, entity.Name);
database.AddInParameter(commandWrapper, "@Address", DbType.String, entity.Address);
database.AddInParameter(commandWrapper, "@ClassId", DbType.Int32, entity.ClassId);
database.AddInParameter(commandWrapper, "@Birthdate", DbType.Date, entity.Birthdate);
database.AddInParameter(commandWrapper, "@Gender", DbType.String, entity.Gender);
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);
}
object _id = database.GetParameterValue(commandWrapper, "@Id");
entity.Id = (System.Int32)_id;
entity.AcceptChanges();
//Provider Data Requested Command Event
OnDataRequested(new CommandEventArgs(commandWrapper, "Insert", entity));
return(Convert.ToBoolean(results));
}