protected T Do <T>(DBBuilder dbBuilder, Func <IDbConnection, T> fn)
{
if (dbBuilder.Transaction != null)
{
return(fn(dbBuilder.Transaction.Connection));
}
else if (this.Transaction != null)
{
return(fn(dbBuilder.SetTransaction(this.Transaction).Transaction.Connection));
}
else
{
using (var connection = DBAdapter.CreateConnection(this.connection.ConnectionString))
{
if (connection.State != ConnectionState.Open)
{
connection.Open();
}
T result = fn(connection);
if (connection.State != ConnectionState.Closed)
{
connection.Close();
}
return(result);
}
}
}
/// <summary>
/// 创建新连接开启事务
/// </summary>
public void Begin(string connectionName = null)
{
IDbConnection connection = DBAdapter.CreateConnection(CFConfig.GetConnection(connectionName).ConnectionString);
connection.Open();
this.Transaction = connection.BeginTransaction(IsolationLevel.Serializable);
disposeConnection = true;
}