/// <summary>
/// 获取查询信息
/// </summary>
/// <typeparam name="valueType">对象类型</typeparam>
/// <typeparam name="modelType">模型类型</typeparam>
/// <param name="sqlTool">SQL操作工具</param>
/// <param name="connection"></param>
/// <param name="query">查询信息</param>
/// <param name="readValue"></param>
/// <returns>对象集合</returns>
internal virtual LeftArray <valueType> Select <valueType, modelType>(Sql.Table <valueType, modelType> sqlTool, ref DbConnection connection, ref SelectQuery <modelType> query, Func <DbDataReader, valueType> readValue)
where valueType : class, modelType
where modelType : class
{
try
{
if (query.Sql != null)
{
if (connection == null)
{
connection = GetConnection();
}
if (connection != null)
{
if (query.IndexFieldName != null)
{
sqlTool.CreateIndex(connection, query.IndexFieldName, false);
query.IndexFieldName = null;
}
bool isFinally = false;
try
{
using (DbCommand command = getCommand(connection, query.Sql))
using (DbDataReader reader = command.ExecuteReader(CommandBehavior.SingleResult))
{
int skipCount = query.SkipCount;
while (skipCount != 0 && reader.Read())
{
--skipCount;
}
if (skipCount == 0)
{
LeftArray <valueType> array = new LeftArray <valueType>();
while (reader.Read())
{
valueType value = readValue(reader);
if (value != null)
{
array.Add(value);
}
}
isFinally = true;
return(array.NotNull());
}
}
isFinally = true;
}
finally
{
if (!isFinally)
{
sqlTool.Log.Add(AutoCSer.Log.LogType.Error, query.Sql);
}
}
}
}
}
finally { query.Free(); }
return(default(LeftArray <valueType>));
}
/// <summary>
/// 获取查询信息
/// </summary>
/// <typeparam name="valueType">对象类型</typeparam>
/// <typeparam name="modelType">模型类型</typeparam>
/// <param name="sqlTool">SQL操作工具</param>
/// <param name="connection"></param>
/// <param name="query">查询信息</param>
/// <returns>对象集合</returns>
internal virtual LeftArray <valueType> Select <valueType, modelType>(Sql.Table <valueType, modelType> sqlTool, ref DbConnection connection, ref SelectQuery <modelType> query)
where valueType : class, modelType
where modelType : class
{
try
{
if (query.Sql != null)
{
if (connection == null)
{
connection = GetConnection();
}
if (connection != null)
{
if (query.IndexFieldName != null)
{
sqlTool.CreateIndex(connection, query.IndexFieldName, false);
query.IndexFieldName = null;
}
using (DbCommand command = getCommand(connection, query.Sql))
{
DbDataReader reader = null;
try
{
reader = command.ExecuteReader(CommandBehavior.SingleResult);
}
catch (Exception error)
{
sqlTool.Log.add(AutoCSer.Log.LogType.Error, error, query.Sql);
}
if (reader != null)
{
using (reader)
{
int skipCount = query.SkipCount;
while (skipCount != 0 && reader.Read())
{
--skipCount;
}
if (skipCount == 0)
{
LeftArray <valueType> array = new LeftArray <valueType>();
while (reader.Read())
{
valueType value = AutoCSer.Emit.Constructor <valueType> .New();
DataModel.Model <modelType> .Setter.Set(reader, value, query.MemberMap);
array.Add(value);
}
return(array);
}
}
}
}
}
}
}
finally { query.Free(); }
return(default(LeftArray <valueType>));
}
