internal override string CreateSqlString(CommandFactory factory, bool isFullName, CreateSqlState state)
{
string sql = state.GetDataSql(this, isFullName);
if (sql != null)
{
return(sql);
}
List <object> objectList = new List <object> ();
object obj;
DataFieldInfo info = _callObject as DataFieldInfo;
if (!Object.Equals(info, null))
{
obj = info.CreateSqlString(factory, isFullName, state);
}
else
{
obj = LambdaExpressionExtend.ConvertLambdaObject(_callObject);
obj = state.AddDataParameter(factory, obj);
}
if (_argsObjects != null)
{
foreach (object item in _argsObjects)
{
object obj1;
DataFieldInfo info1 = item as DataFieldInfo;
if (!Object.Equals(info1, null))
{
obj1 = info1.CreateSqlString(factory, isFullName, state);
}
else
{
obj1 = LambdaExpressionExtend.ConvertLambdaObject(item);
obj1 = state.AddDataParameter(factory, obj1);
}
objectList.Add(obj1);
}
}
switch (_function)
{
case StringFunction.Substring:
if (objectList.Count == 2)
{
sql = factory.CreateSubStringSql(obj, objectList [0], objectList [1]);
}
else
{
sql = factory.CreateSubStringSql(obj, objectList [0], null);
}
break;
case StringFunction.IndexOf:
if (objectList.Count == 2)
{
sql = factory.CreateIndexOfSql(obj, objectList [0], objectList [1]);
}
else
{
sql = factory.CreateIndexOfSql(obj, objectList [0], null);
}
break;
case StringFunction.Replace:
sql = factory.CreateReplaceSql(obj, objectList [0], objectList [1]);
break;
case StringFunction.ToLower:
sql = factory.CreateToLowerSql(obj);
break;
case StringFunction.ToUpper:
sql = factory.CreateToUpperSql(obj);
break;
case StringFunction.Trim:
sql = factory.CreateTrimSql(obj);
break;
}
state.SetDataSql(this, isFullName, sql);
return(sql);
}