/// <summary>
/// Updates an existing batch entity (Normally this will be to set the end date on the batch)
/// </summary>
/// <param name="entity">Batch to update</param>
/// <returns>True if the batch was altered</returns>
public bool Update(Vox.Auditing.Model.Batch entity)
{
if (entity == null)
{
throw new ArgumentNullException("entity");
}
if (entity.ID == 0)
{
throw new InvalidBatchException("Cannot updated a batch which has not been added!");
}
if (entity.ClientID == 0)
{
throw new InvalidBatchException("Cannot update a batch with no valid client!");
}
bool updated = false;
// Check if the batch is valid first
using (DataModel.VoxAuditingEntities context = new DataModel.VoxAuditingEntities(connectionString)) {
// Check that no existing batches are open for the current client ID
var validBatch = from m in context.Batches
where m.BatchID == entity.ID
select m;
if (validBatch.Count() == 1)
{
DataModel.Batch selectBatch = validBatch.First();
selectBatch.FinishDate = entity.FinishDate;
updated = context.SaveChanges() != 0;
}
else
{
throw new InvalidBatchException(string.Format("Batch '{0}' does not exist", entity.Number));
}
}
return(updated);
}
/// <summary>
/// Creates a new Batch entry for the given client in the table. The combination of BatchNumber and Client must be unique, if not a InvalidBatchException will
/// be thrown. In addition existing batches must be closed first.
/// </summary>
/// <param name="entity">Batch which will be added.</param>
/// <returns>True if the batch was succesfully added, otherwise false. If the batch is invalid an InvalidBatchException will be thrown</returns>
public bool Add(Vox.Auditing.Model.Batch entity)
{
if (entity == null)
{
throw new ArgumentNullException("entity");
}
if (entity.ID != 0)
{
throw new InvalidBatchException("Cannot add a batch which has already been added!");
}
if (entity.ClientID == 0)
{
throw new InvalidBatchException("Cannot add a batch with no valid client!");
}
bool added = false;
// Check if the batch is valid first
using (DataModel.VoxAuditingEntities context = new DataModel.VoxAuditingEntities(connectionString)) {
// Check that no existing batches are open for the current client ID
var validBatch = from m in context.Batches
where m.MessageClientID == entity.ClientID && m.FinishDate == null
select m;
if (validBatch.Count() == 0)
{
// Try and add the new batch
context.Batches.AddObject(new DataModel.Batch()
{
BatchID = entity.ID,
BatchNumber = entity.Number,
MessageClientID = entity.ClientID,
StartDate = entity.StartDate
});
added = context.SaveChanges() != 0;
}
else
{
throw new InvalidBatchException(string.Format("Batch '{0}' is still open for the given client", validBatch.First().BatchNumber));
}
}
return(added);
}
/// <summary>
/// Cannot remove a existing batch via the repository
/// </summary>
/// <param name="entity"></param>
/// <returns></returns>
public bool Remove(Vox.Auditing.Model.Batch entity)
{
throw new NotImplementedException();
}
/// <summary>
/// Retrieves the batch from the database by search on the BatchID. If a negative ID is used it will throw an ArgumentException
/// </summary>
/// <param name="aName">A batch Number</param>
/// <returns>Null if the batch ID doesn't exist, otherwise a Batch Object with the given ID</returns>
public Vox.Auditing.Model.Batch GetByName(string aName)
{
if (string.IsNullOrEmpty(aName)) { throw new ArgumentException("Cannot search for a Batch Object with a empty ID", "aName"); }
Batch result = null;
using (DataModel.VoxAuditingEntities context = new DataModel.VoxAuditingEntities(connectionString)) {
var selectResult = from m in context.Batches
where m.BatchNumber == aName
select m;
// Check the results. Can only have one result
if (selectResult.Count() == 1) {
DataModel.Batch selectedBatch = selectResult.First();
result = new Batch(selectedBatch.BatchID, selectedBatch.BatchNumber) {
ClientID = selectedBatch.MessageClientID,
StartDate = selectedBatch.StartDate,
FinishDate = selectedBatch.FinishDate
};
}
}
return result;
}
