~drizzle-trunk/drizzle/development

/* - mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-

 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:

 *

 *  Copyright (C) 2010 Brian Aker

 *

 *  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; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  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 <plugin/information_schema_dictionary/dictionary.h>

using namespace std;

using namespace drizzled;

ReferentialConstraints::ReferentialConstraints() :

  InformationSchema("REFERENTIAL_CONSTRAINTS")

{

  add_field("CONSTRAINT_CATALOG");

  add_field("CONSTRAINT_SCHEMA");

  add_field("CONSTRAINT_NAME");

  add_field("UNIQUE_CONSTRAINT_CATALOG");

  add_field("UNIQUE_CONSTRAINT_SCHEMA");

  add_field("UNIQUE_CONSTRAINT_NAME");

  add_field("MATCH_OPTION");

  add_field("UPDATE_RULE");

  add_field("DELETE_RULE");

}

ReferentialConstraints::Generator::Generator(drizzled::Field **arg) :

  InformationSchema::Generator(arg),

  foreign_key_generator(getSession())

{

}

bool ReferentialConstraints::Generator::populate()

{

  drizzled::generator::FieldPair field_pair;

  while (!!(field_pair= foreign_key_generator))

  {

    const drizzled::message::Table *table_message= field_pair.first;

    const message::Table::ForeignKeyConstraint &foreign_key(table_message->fk_constraint(field_pair.second));

    // CONSTRAINT_CATALOG

    push(table_message->catalog());

    // CONSTRAINT_SCHEMA

    push(table_message->schema());

    // CONSTRAINT_NAME

    push(foreign_key.name());

    // UNIQUE_CONSTRAINT_CATALOG

    push(table_message->catalog());

    // UNIQUE_CONSTRAINT_SCHEMA

    push(table_message->schema());

    // UNIQUE_CONSTRAINT_NAME

    push(" ");

    // MATCH_OPTION 

    push(drizzled::message::type(foreign_key.match()));

    //UPDATE_RULE

    push(drizzled::message::type(foreign_key.update_option()));

    //DELETE_RULE

    push(drizzled::message::type(foreign_key.delete_option()));

    return true;

  }

  return false;

}