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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 Sun Microsystems, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT 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
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include <drizzled/function/time/date.h>
#include <drizzled/temporal.h>
namespace drizzled
{
/* Abstract CURRENT_TIMESTAMP function. See also Item_func_curtime */
class Item_func_now :public Item_date_func
{
protected:
int64_t value;
char buff[type::Time::MAX_STRING_LENGTH];
uint32_t buff_length;
type::Time ltime;
DateTime cached_temporal;
public:
Item_func_now() :Item_date_func() {}
Item_func_now(Item *a) :Item_date_func(a) {}
enum Item_result result_type () const { return STRING_RESULT; }
int64_t val_int() { assert(fixed == 1); return value; }
int save_in_field(Field *to, bool no_conversions);
String *val_str(String *str);
void fix_length_and_dec();
/**
* For NOW() and sisters, there is no argument, and we
* return a cached Date value that we create during fix_length_and_dec.
*
* Always returns true, since a DateTime can always be constructed
* from a time_t
*
* @param Reference to a DateTime to populate
*/
bool get_temporal(DateTime &temporal);
bool get_date(type::Time &res, uint32_t fuzzy_date);
virtual void store_now_in_TIME(type::Time &now_time)=0;
};
class Item_func_now_local :public Item_func_now
{
public:
Item_func_now_local() :Item_func_now() {}
Item_func_now_local(Item *a) :Item_func_now(a) {}
const char *func_name() const { return "now"; }
virtual void store_now_in_TIME(type::Time &now_time);
virtual enum Functype functype() const { return NOW_FUNC; }
};
class Item_func_now_utc :public Item_func_now
{
public:
Item_func_now_utc() :Item_func_now() {}
Item_func_now_utc(Item *a) :Item_func_now(a) {}
const char *func_name() const { return "utc_timestamp"; }
virtual void store_now_in_TIME(type::Time &now_time);
};
} /* namespace drizzled */
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