Drizzled Public API Documentation

date.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/date.h>
00023 #include <drizzled/temporal.h>
00024 
00025 namespace drizzled
00026 {
00027 
00028 String *Item_date::val_str(String *str)
00029 {
00030   assert(fixed);
00031 
00032   /* We have our subclass convert a Date temporal for us */
00033   Date temporal;
00034   if (! get_temporal(temporal))
00035     return (String *) NULL; /* get_temporal throws error. */
00036 
00037   if (str->alloc(type::Time::MAX_STRING_LENGTH))
00038   {
00039     null_value= true;
00040     return (String *) NULL;
00041   }
00042 
00043   /* Convert the Date to a string and return it */
00044   size_t new_length;
00045   new_length= temporal.to_string(str->c_ptr(), type::Time::MAX_STRING_LENGTH);
00046   assert(new_length < type::Time::MAX_STRING_LENGTH);
00047   str->length(new_length);
00048   return str;
00049 }
00050 
00051 int64_t Item_date::val_int()
00052 {
00053   assert(fixed);
00054 
00055   /* We have our subclass convert a Date temporal for us */
00056   Date temporal;
00057   if (! get_temporal(temporal))
00058     return 0; /* get_temporal throws error. */
00059 
00060   /* Convert the Date to a string and return it */
00061   int32_t int_value;
00062   temporal.to_int32_t(&int_value);
00063   return (int64_t) int_value;
00064 }
00065 
00066 } /* namespace drizzled */