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Viewing changes to plugin/show_dictionary/show_create_table.cc

  • Committer: Brian Aker
  • Date: 2010-10-09 00:49:33 UTC
  • mfrom: (1812.5.8 staging)
  • Revision ID: brian@tangent.org-20101009004933-tehugnkubtzp6uy4
Merge in changes for show create table.

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plugin/show_dictionary/show_create_table.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/show_dictionary/dictionary.h"
 
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#include "drizzled/identifier.h"
 
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#include "drizzled/message.h"
 
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#include "drizzled/message/statement_transform.h"
 
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#include <google/protobuf/text_format.h>
 
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#include <string>
 
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using namespace std;
 
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using namespace drizzled;
 
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ShowCreateTable::ShowCreateTable() :
 
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  plugin::TableFunction("DATA_DICTIONARY", "TABLE_SQL_DEFINITION")
 
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{
 
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  add_field("TABLE_NAME", plugin::TableFunction::STRING, MAXIMUM_IDENTIFIER_LENGTH, false);
 
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  add_field("TABLE_SQL_DEFINITION", plugin::TableFunction::STRING, TABLE_FUNCTION_BLOB_SIZE, false);
 
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}
 
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ShowCreateTable::Generator::Generator(Field **arg) :
 
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  plugin::TableFunction::Generator(arg),
 
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  is_table_primed(false)
 
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{
 
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  statement::Select *select= static_cast<statement::Select *>(getSession().lex->statement);
 
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  if (not select->getShowTable().empty() && not select->getShowSchema().empty())
 
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  {
 
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    table_name.append(select->getShowTable().c_str());
 
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    TableIdentifier identifier(select->getShowSchema().c_str(), select->getShowTable().c_str());
 
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    int error= plugin::StorageEngine::getTableDefinition(getSession(),
 
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                                                         identifier,
 
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                                                         table_message);
 
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    if (error == EEXIST)
 
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      is_table_primed= true;
 
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    std::string foo;
 
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    google::protobuf::TextFormat::PrintToString(table_message, &foo);
 
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  }
 
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}
 
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bool ShowCreateTable::Generator::populate()
 
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{
 
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  enum drizzled::message::TransformSqlError transform_err;
 
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  if (not is_table_primed)
 
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    return false;
 
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  std::string create_sql;
 
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  transform_err= message::transformTableDefinitionToSql(table_message,
 
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                                                        create_sql,
 
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                                                        message::DRIZZLE,
 
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                                                        false);
 
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  if (transform_err != drizzled::message::NONE)
 
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  {
 
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    return false;
 
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  }
 
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  push(table_name);
 
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  push(create_sql);
 
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  is_table_primed= false;
 
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  return true;
 
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}