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/* - mode: c++ c-basic-offset: 2; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
* Copyright (C) 2008 MySQL
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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 "drizzled/server_includes.h"
#include "drizzled/field/date.h"
#include "drizzled/error.h"
#include "drizzled/table.h"
#include "drizzled/temporal.h"
#include "drizzled/session.h"
#include <sstream>
#include <string>
#include CMATH_H
#if defined(CMATH_NAMESPACE)
using namespace CMATH_NAMESPACE;
#endif
/****************************************************************************
** Drizzle date type stored in 3 bytes
** In number context: YYYYMMDD
****************************************************************************/
/*
Store string into a date field
SYNOPSIS
Field_date::store()
from Date string
len Length of date field
cs Character set (not used)
RETURN
0 ok
1 Value was cut during conversion
2 Wrong date string
3 Datetime value that was cut (warning level NOTE)
This is used by opt_range.cc:get_mm_leaf(). Note that there is a
nearly-identical class Field_date doesn't ever return 3 from its
store function.
*/
int Field_date::store(const char *from,
uint32_t len,
const CHARSET_INFO * const )
{
#ifdef NOTDEFINED
long tmp;
DRIZZLE_TIME l_time;
int error;
Session *session= table ? table->in_use : current_session;
enum enum_drizzle_timestamp_type ret;
if ((ret= str_to_datetime(from, len, &l_time,
(TIME_FUZZY_DATE |
(session->variables.sql_mode &
(MODE_NO_ZERO_DATE | MODE_INVALID_DATES))),
&error)) <= DRIZZLE_TIMESTAMP_ERROR)
{
tmp= 0;
error= 2;
}
else
{
tmp= l_time.day + l_time.month*32 + l_time.year*16*32;
if (!error && (ret != DRIZZLE_TIMESTAMP_DATE) &&
(l_time.hour || l_time.minute || l_time.second || l_time.second_part))
error= 3; // Datetime was cut (note)
}
if (error)
set_datetime_warning(error == 3 ? DRIZZLE_ERROR::WARN_LEVEL_NOTE :
DRIZZLE_ERROR::WARN_LEVEL_WARN,
ER_WARN_DATA_TRUNCATED,
from, len, DRIZZLE_TIMESTAMP_DATE, 1);
int3store(ptr, tmp);
#endif /* NOTDEFINED */
/*
* Try to create a DateTime from the supplied string. Throw an error
* if unable to create a valid DateTime. A DateTime is used so that
* automatic conversion from the higher-storage DateTime can be used
* and matches on datetime format strings can occur.
*/
drizzled::DateTime temporal;
if (! temporal.from_string(from, (size_t) len))
{
my_error(ER_INVALID_DATETIME_VALUE, MYF(ME_FATALERROR), from);
return 2;
}
/* Create the stored integer format. @TODO This should go away. Should be up to engine... */
uint32_t int_value= (temporal.years() * 16 * 32) + (temporal.months() * 32) + temporal.days();
int3store(ptr, int_value);
return 0;
}
int Field_date::store(double from)
{
if (from < 0.0 || from > 99991231235959.0)
{
/* Convert the double to a string using stringstream */
std::stringstream ss;
std::string tmp;
ss.precision(18); /* 18 places should be fine for error display of double input. */
ss << from; ss >> tmp;
my_error(ER_INVALID_DATETIME_VALUE, MYF(ME_FATALERROR), tmp.c_str());
return 2;
}
return Field_date::store((int64_t) rint(from), false);
}
int Field_date::store(int64_t from, bool)
{
/*
* Try to create a DateTime from the supplied integer. Throw an error
* if unable to create a valid DateTime.
*/
drizzled::DateTime temporal;
if (! temporal.from_int64_t(from))
{
/* Convert the integer to a string using stringstream */
std::stringstream ss;
std::string tmp;
ss << from; ss >> tmp;
my_error(ER_INVALID_DATETIME_VALUE, MYF(ME_FATALERROR), tmp.c_str());
return 2;
}
/* Create the stored integer format. @TODO This should go away. Should be up to engine... */
uint32_t int_value= (temporal.years() * 16 * 32) + (temporal.months() * 32) + temporal.days();
int3store(ptr, int_value);
return 0;
}
int Field_date::store_time(DRIZZLE_TIME *ltime,
enum enum_drizzle_timestamp_type time_type)
{
long tmp;
int error= 0;
if (time_type == DRIZZLE_TIMESTAMP_DATE ||
time_type == DRIZZLE_TIMESTAMP_DATETIME)
{
tmp=ltime->year*16*32+ltime->month*32+ltime->day;
if (check_date(ltime, tmp != 0,
(TIME_FUZZY_DATE |
(current_session->variables.sql_mode &
(MODE_NO_ZERO_DATE | MODE_INVALID_DATES))), &error))
{
char buff[MAX_DATE_STRING_REP_LENGTH];
String str(buff, sizeof(buff), &my_charset_utf8_general_ci);
make_date(ltime, &str);
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED,
str.ptr(), str.length(), DRIZZLE_TIMESTAMP_DATE, 1);
}
if (!error && ltime->time_type != DRIZZLE_TIMESTAMP_DATE &&
(ltime->hour || ltime->minute || ltime->second || ltime->second_part))
{
char buff[MAX_DATE_STRING_REP_LENGTH];
String str(buff, sizeof(buff), &my_charset_utf8_general_ci);
make_datetime(ltime, &str);
set_datetime_warning(DRIZZLE_ERROR::WARN_LEVEL_NOTE,
ER_WARN_DATA_TRUNCATED,
str.ptr(), str.length(), DRIZZLE_TIMESTAMP_DATE, 1);
error= 3;
}
}
else
{
tmp=0;
error= 1;
set_warning(DRIZZLE_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
}
int3store(ptr,tmp);
return error;
}
double Field_date::val_real(void)
{
return (double) Field_date::val_int();
}
int64_t Field_date::val_int(void)
{
uint32_t j= uint3korr(ptr);
j= (j % 32L)+(j / 32L % 16L)*100L + (j/(16L*32L))*10000L;
return (int64_t) j;
}
String *Field_date::val_str(String *val_buffer,
String *)
{
val_buffer->alloc(field_length);
val_buffer->length(field_length);
uint32_t tmp=(uint32_t) uint3korr(ptr);
int part;
char *pos=(char*) val_buffer->ptr()+10;
/* Open coded to get more speed */
*pos--=0; // End NULL
part=(int) (tmp & 31);
*pos--= (char) ('0'+part%10);
*pos--= (char) ('0'+part/10);
*pos--= '-';
part=(int) (tmp >> 5 & 15);
*pos--= (char) ('0'+part%10);
*pos--= (char) ('0'+part/10);
*pos--= '-';
part=(int) (tmp >> 9);
*pos--= (char) ('0'+part%10); part/=10;
*pos--= (char) ('0'+part%10); part/=10;
*pos--= (char) ('0'+part%10); part/=10;
*pos= (char) ('0'+part);
return val_buffer;
}
bool Field_date::get_date(DRIZZLE_TIME *ltime,uint32_t fuzzydate)
{
uint32_t tmp=(uint32_t) uint3korr(ptr);
ltime->day= tmp & 31;
ltime->month= (tmp >> 5) & 15;
ltime->year= (tmp >> 9);
ltime->time_type= DRIZZLE_TIMESTAMP_DATE;
ltime->hour= ltime->minute= ltime->second= ltime->second_part= ltime->neg= 0;
return ((!(fuzzydate & TIME_FUZZY_DATE) && (!ltime->month || !ltime->day)) ?
1 : 0);
}
bool Field_date::get_time(DRIZZLE_TIME *ltime)
{
return Field_date::get_date(ltime,0);
}
int Field_date::cmp(const unsigned char *a_ptr, const unsigned char *b_ptr)
{
uint32_t a,b;
a=(uint32_t) uint3korr(a_ptr);
b=(uint32_t) uint3korr(b_ptr);
return (a < b) ? -1 : (a > b) ? 1 : 0;
}
void Field_date::sort_string(unsigned char *to,uint32_t )
{
to[0] = ptr[2];
to[1] = ptr[1];
to[2] = ptr[0];
}
void Field_date::sql_type(String &res) const
{
res.set_ascii(STRING_WITH_LEN("date"));
}
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