public async Task <IDataConnectionTransaction> BeginTransaction()
{
if (CurrentTransaction != null)
{
throw new InvalidOperationException("Transaction is already started");
}
var connection = await GetOpenConnectionAsync();
var transaction = connection.BeginTransaction();
var result = new DataConnectionTransaction <T>(this, transaction);
return(result);
}
/// <summary>
/// Specifies an existing <see cref="DbTransaction" /> to be used for database operations.
/// </summary>
/// <param name="transaction"> The transaction to be used. </param>
internal virtual IDataConnectionTransaction UseTransaction(DataConnectionTransaction <T> transaction)
{
if (transaction == null)
{
if (DataConnectionTransaction != null)
{
DataConnectionTransaction = null;
}
}
else
{
if (CurrentTransaction != null)
{
throw new InvalidOperationException("Transaction is already started");
}
DataConnectionTransaction = transaction;
}
return(DataConnectionTransaction);
}