~drizzle-trunk/drizzle/development

/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2008 Sun Microsystems

 *

 *  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

 */

#include "config.h"

#include "drizzled/function/time/curdate.h"

#include "drizzled/tztime.h"

#include "drizzled/temporal.h"

#include "drizzled/session.h"

namespace drizzled

{

void Item_func_curdate::fix_length_and_dec()

{

  collation.set(&my_charset_bin);

  decimals=0;

  max_length=Date::MAX_STRING_LENGTH*MY_CHARSET_BIN_MB_MAXLEN;

  store_now_in_TIME(&ltime);

  /* We don't need to set second_part and neg because they already 0 */

  ltime.hour= ltime.minute= ltime.second= 0;

  ltime.time_type= DRIZZLE_TIMESTAMP_DATE;

  /** 

   * @TODO Remove ltime completely when timezones are reworked.  Using this

   * technique now to avoid a large patch...

   */

  cached_temporal.set_years(ltime.year);

  cached_temporal.set_months(ltime.month);

  cached_temporal.set_days(ltime.day);

}

/**

    Converts current time in time_t to DRIZZLE_TIME represenatation for local

    time zone. Defines time zone (local) used for whole CURDATE function.

*/

void Item_func_curdate_local::store_now_in_TIME(DRIZZLE_TIME *now_time)

{

  Session *session= current_session;

  time_t tmp= session->query_start();

  (void) cached_temporal.from_time_t(tmp);

  now_time->year= cached_temporal.years();

  now_time->month= cached_temporal.months();

  now_time->day= cached_temporal.days();

  now_time->hour= 0;

  now_time->minute= 0;

  now_time->second= 0;

}

/**

    Converts current time in time_t to DRIZZLE_TIME represenatation for UTC

    time zone. Defines time zone (UTC) used for whole UTC_DATE function.

*/

void Item_func_curdate_utc::store_now_in_TIME(DRIZZLE_TIME *now_time)

{

  Session *session= current_session;

  time_t tmp= session->query_start();

  (void) cached_temporal.from_time_t(tmp);

  now_time->year= cached_temporal.years();

  now_time->month= cached_temporal.months();

  now_time->day= cached_temporal.days();

  now_time->hour= 0;

  now_time->minute= 0;

  now_time->second= 0;

}

bool Item_func_curdate::get_temporal(Date &to)

{

  to= cached_temporal;

  return true;

}

} /* namespace drizzled */