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-------------------------------------------------------------------------------
-- --
-- GNADE : GNu Ada Database Environment --
-- --
-- Author : Juergen Pfeifer <juergen.pfeifer@gmx.net>
--
-- Copyright (C) 2000-2003 Juergen Pfeifer
-- --
-- GNADE is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNADE is implemented to work with GNAT, the GNU Ada compiler. --
-- --
-------------------------------------------------------------------------------
package body GNU.DB.SQLCLI.Generic_Attr.Boolean_String_Attribute is
function To_String (Object : Attribute_Value_Pair_Boolean_String)
return String is
begin
if Object.Value then
return "Y";
else
return "N";
end if;
end To_String;
function GetAttr (Handle : Context;
Attribute : T;
Data : Aux;
MaxLength : SQLSMALLINT := 0;
ErrorCode : access SQLRETURN)
return Attribute_Value_Pair_Boolean_String
is
pragma Assert (MaxLength > 0);
pragma Warnings (Off);
Str : String (1 .. Positive (MaxLength));
pragma Warnings (On);
Len : Base := Base (Str'Length);
Res : Boolean := False;
begin
Get (Handle,
Attribute,
To_SQLPOINTER (Str'Address),
Len,
Data,
ErrorCode);
if Is_SQL_Ok (ErrorCode.all) then
if Len > 1 then
Raise_SQL_Error (ProcedureName => "",
ErrorMessage => "UnexpectedLength");
else
if Len = 1 then
if Str (1) = 'Y' or else Str (1) = 'y'
or else Str (1) = 'F' then
Res := True;
else
if Str (1) /= 'N' and then Str (1) /= 'n' then
Raise_SQL_Error
(ProcedureName => "",
ErrorMessage => "'Y' or 'N' expected");
end if;
end if;
end if;
end if;
end if;
return Attribute_Value_Pair_Boolean_String'(Attribute => Attribute,
Value => Res);
end GetAttr;
procedure SetAttr (Handle : in Context;
AV_Pair : in Attribute_Value_Pair_Boolean_String;
Data : in Aux;
ErrorCode : out SQLRETURN) is
Str : aliased String (1 .. 1);
Length : constant Base := Base (Str'Length);
begin
if AV_Pair.Value then
Str (1) := 'Y';
else
Str (1) := 'N';
end if;
Set (Handle, AV_Pair.Attribute,
To_SQLPOINTER (Str'Address),
Length,
Data,
ErrorCode);
end SetAttr;
end GNU.DB.SQLCLI.Generic_Attr.Boolean_String_Attribute;
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