Drizzled Public API Documentation

set_option.cc
00001 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
00002  *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
00003  *
00004  *  Copyright (C) 2009 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; either version 2 of the License, or
00009  *  (at your option) any later version.
00010  *
00011  *  This program is distributed in the hope that it will be useful,
00012  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  *  GNU General Public License for more details.
00015  *
00016  *  You should have received a copy of the GNU General Public License
00017  *  along with this program; if not, write to the Free Software
00018  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
00019  */
00020 
00021 #include <config.h>
00022 #include <drizzled/show.h>
00023 #include <drizzled/session.h>
00024 #include <drizzled/statement/set_option.h>
00025 
00026 namespace drizzled
00027 {
00028 
00029 namespace statement
00030 {
00031 SetOption::SetOption(Session *in_session) :
00032   Statement(in_session),
00033   one_shot_set(false)
00034   {
00035     set_command(SQLCOM_SET_OPTION);
00036     init_select(&lex());
00037     lex().option_type= OPT_SESSION;
00038     lex().var_list.empty();
00039   }
00040 } // namespace statement
00041 
00042 bool statement::SetOption::execute()
00043 {
00044   TableList *all_tables= lex().query_tables;
00045 
00046   if (session().openTablesLock(all_tables))
00047   {
00048     return true;
00049   }
00050   bool res= sql_set_variables(&session(), lex().var_list);
00051   if (res)
00052   {
00053     /*
00054      * We encountered some sort of error, but no message was sent.
00055      * Send something semi-generic here since we don't know which
00056      * assignment in the list caused the error.
00057      */
00058     if (! session().is_error())
00059     {
00060       my_error(ER_WRONG_ARGUMENTS, MYF(0), "SET");
00061     }
00062   }
00063   else
00064   {
00065     session().my_ok();
00066   }
00067 
00068   return res;
00069 }
00070 
00071 } /* namespace drizzled */