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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
*
* 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
*/
#ifndef DRIZZLED_SELECT_DUMPVAR_H
#define DRIZZLED_SELECT_DUMPVAR_H
#include "drizzled/error.h"
#include "drizzled/error.h"
#include <vector>
namespace drizzled
{
class select_dumpvar :public select_result_interceptor {
ha_rows row_count;
public:
std::vector<var *> var_list;
select_dumpvar() { var_list.clear(); row_count= 0;}
~select_dumpvar() {}
int prepare(List<Item> &list, Select_Lex_Unit *u)
{
unit= u;
if (var_list.size() != list.elements)
{
my_message(ER_WRONG_NUMBER_OF_COLUMNS_IN_SELECT,
ER(ER_WRONG_NUMBER_OF_COLUMNS_IN_SELECT), MYF(0));
return 1;
}
return 0;
}
void cleanup()
{
row_count= 0;
}
bool send_data(List<Item> &items)
{
std::vector<var *>::const_iterator iter= var_list.begin();
List_iterator<Item> it(items);
Item *item= NULL;
var *current_var;
if (unit->offset_limit_cnt)
{ // using limit offset,count
unit->offset_limit_cnt--;
return(0);
}
if (row_count++)
{
my_message(ER_TOO_MANY_ROWS, ER(ER_TOO_MANY_ROWS), MYF(0));
return(1);
}
while ((iter != var_list.end()) && (item= it++))
{
current_var= *iter;
if (current_var->local == 0)
{
Item_func_set_user_var *suv= new Item_func_set_user_var(current_var->s, item);
suv->fix_fields(session, 0);
suv->check(0);
suv->update();
}
++iter;
}
return(session->is_error());
}
bool send_eof()
{
if (! row_count)
push_warning(session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
ER_SP_FETCH_NO_DATA, ER(ER_SP_FETCH_NO_DATA));
/*
In order to remember the value of affected rows for ROW_COUNT()
function, SELECT INTO has to have an own SQLCOM.
TODO: split from SQLCOM_SELECT
*/
session->my_ok(row_count);
return 0;
}
};
} /* namespace drizzled */
#endif /* DRIZZLED_SELECT_DUMPVAR_H */
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