Drizzled Public API Documentation

sysdate_local.cc
00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2008 Sun Microsystems, Inc.
00005  *
00006  *  This program is free software; you can redistribute it and/or modify
00007  *  it under the terms of the GNU General Public License as published by
00008  *  the Free Software Foundation; version 2 of the License.
00009  *
00010  *  This program is distributed in the hope that it will be useful,
00011  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00012  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013  *  GNU General Public License for more details.
00014  *
00015  *  You should have received a copy of the GNU General Public License
00016  *  along with this program; if not, write to the Free Software
00017  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00018  */
00019 
00020 #include <config.h>
00021 
00022 #include <drizzled/function/time/sysdate_local.h>
00023 #include <drizzled/tztime.h>
00024 #include <drizzled/session.h>
00025 #include <drizzled/field.h>
00026 
00027 namespace drizzled {
00028 
00033 void Item_func_sysdate_local::store_now_in_TIME(type::Time &now_time)
00034 {
00035   getSession().variables.time_zone->gmt_sec_to_TIME(now_time, time(NULL));
00036 }
00037 
00038 
00039 String *Item_func_sysdate_local::val_str(String *)
00040 {
00041   assert(fixed == 1);
00042   store_now_in_TIME(ltime);
00043 
00044   size_t length= type::Time::MAX_STRING_LENGTH;
00045   ltime.convert(buff, length);
00046   buff_length= length;
00047   str_value.set(buff, length, &my_charset_bin);
00048 
00049   return &str_value;
00050 }
00051 
00052 
00053 int64_t Item_func_sysdate_local::val_int()
00054 {
00055   assert(fixed == 1);
00056   store_now_in_TIME(ltime);
00057   int64_t tmp;
00058   ltime.convert(tmp);
00059 
00060   return tmp;
00061 }
00062 
00063 double Item_func_sysdate_local::val_real()
00064 {
00065   assert(fixed == 1);
00066 
00067   store_now_in_TIME(ltime);
00068   int64_t tmp;
00069   ltime.convert(tmp);
00070 
00071   return int64_t2double(tmp);
00072 }
00073 
00074 
00075 void Item_func_sysdate_local::fix_length_and_dec()
00076 {
00077   decimals= 0;
00078   collation.set(&my_charset_bin);
00079   max_length= DateTime::MAX_STRING_LENGTH*MY_CHARSET_BIN_MB_MAXLEN;
00080 }
00081 
00082 
00083 bool Item_func_sysdate_local::get_date(type::Time &res, uint32_t )
00084 {
00085   store_now_in_TIME(ltime);
00086   res= ltime;
00087   return 0;
00088 }
00089 
00090 
00091 int Item_func_sysdate_local::save_in_field(Field *to, bool )
00092 {
00093   store_now_in_TIME(ltime);
00094   to->set_notnull();
00095   to->store_time(ltime, type::DRIZZLE_TIMESTAMP_DATETIME);
00096 
00097   return 0;
00098 }
00099 
00100 } /* namespace drizzled */