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Viewing changes to plugin/session_dictionary/variables.cc

  • Committer: Monty Taylor
  • Date: 2010-10-21 23:10:12 UTC
  • mto: (1879.1.2 build)
  • mto: This revision was merged to the branch mainline in revision 1880.
  • Revision ID: mordred@inaugust.com-20101021231012-uhsebiqo23xi0ygy
Updated AUTHORS list with everyone from bzr logs.

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plugin/session_dictionary/variables.cc
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/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2010 Brian Aker
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 *
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 *  This program is free software; you can redistribute it and/or modify
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 *  it under the terms of the GNU General Public License as published by
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 *  the Free Software Foundation; either version 2 of the License, or
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 *  (at your option) any later version.
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 *
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 *  This program is distributed in the hope that it will be useful,
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 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 *  GNU General Public License for more details.
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 *
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 *  You should have received a copy of the GNU General Public License
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 *  along with this program; if not, write to the Free Software
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 *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
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 */
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#include <config.h>
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#include <plugin/session_dictionary/dictionary.h>
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#include <drizzled/user_var_entry.h>
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#define LARGEST_USER_VARIABLE_NAME 128
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namespace session_dictionary {
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Variables::Variables() :
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  drizzled::plugin::TableFunction("DATA_DICTIONARY", "USER_DEFINED_VARIABLES")
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{
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  add_field("VARIABLE_NAME", drizzled::plugin::TableFunction::STRING, LARGEST_USER_VARIABLE_NAME, false);
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  add_field("VARIABLE_VALUE", drizzled::plugin::TableFunction::STRING, LARGEST_USER_VARIABLE_NAME, true);
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}
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Variables::Generator::Generator(drizzled::Field **arg) :
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  drizzled::plugin::TableFunction::Generator(arg),
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  user_vars(getSession().getUserVariables()),
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  iter(user_vars.begin())
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{
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}
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Variables::Generator::~Generator()
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{
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}
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bool Variables::Generator::populate()
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{
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  while (iter != user_vars.end())
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  {
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    char buff[LARGEST_USER_VARIABLE_NAME];
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    drizzled::String tmp(buff, sizeof(buff), drizzled::system_charset_info);
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    bool null_value;
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    uint32_t decimals= 4; // arbitrary
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    (*iter).second->val_str(&null_value, &tmp, decimals);
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    // VARIABLE_NAME
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    push((*iter).first);
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    // VARIABLE_VALUE 
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    if (null_value)
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      push();
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    else
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      push(tmp.c_str());
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    iter++;
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    return true;
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  }
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  return false;
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}
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} /* namespace session_dictionary */