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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
* Copyright (C) 2010 Stewart Smith
*
* 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/session.h>
#include <drizzled/function/str/strfunc.h>
using namespace drizzled;
class DatabaseFunction :public Item_str_func
{
public:
DatabaseFunction() :Item_str_func() {}
String *val_str(String *);
void fix_length_and_dec()
{
max_length= MAX_FIELD_NAME * system_charset_info->mbmaxlen;
maybe_null=1;
}
const char *func_name() const { return "database"; }
const char *fully_qualified_func_name() const { return "database()"; }
};
String *DatabaseFunction::val_str(String *str)
{
assert(fixed == 1);
Session *session= current_session;
if (session->db.empty())
{
null_value= 1;
return 0;
}
else
str->copy(session->db.c_str(), session->db.length(), system_charset_info);
return str;
}
plugin::Create_function<DatabaseFunction> *database_function= NULL;
static int initialize(drizzled::plugin::Registry ®istry)
{
database_function= new plugin::Create_function<DatabaseFunction>("database");
registry.add(database_function);
return 0;
}
static int finalize(drizzled::plugin::Registry ®istry)
{
registry.remove(database_function);
delete database_function;
return 0;
}
DRIZZLE_DECLARE_PLUGIN
{
DRIZZLE_VERSION_ID,
"database_function",
"1.0",
"Stewart Smith",
"returns the current database",
PLUGIN_LICENSE_GPL,
initialize, /* Plugin Init */
finalize, /* Plugin Deinit */
NULL, /* system variables */
NULL /* config options */
}
DRIZZLE_DECLARE_PLUGIN_END;
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