<?php
// $Revision: 1.1.2.5 $
// ------------------------------------------------------------------------- //
//  XooNIps - Neuroinformatics Base Platform System                          //
//  Copyright (C) 2005-2011 RIKEN, Japan All rights reserved.                //
//  http://xoonips.sourceforge.jp/                                           //
// ------------------------------------------------------------------------- //
//  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.                                      //
//                                                                           //
//  You may not change or alter any portion of this comment or credits       //
//  of supporting developers from this source code or any supporting         //
//  source code which is considered copyrighted (c) material of the          //
//  original comment or credit authors.                                      //
//                                                                           //
//  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA //
// ------------------------------------------------------------------------- //
if ( ! defined( 'XOOPS_ROOT_PATH' ) ) {
  exit();
}

/**
 * @brief abstract handler object of ranking tables
 *
 */
class XooNIpsOrmAbstractRankingHandler extends XooNIpsTableObjectHandler {

  /**
   * object column names
   * @var array
   */
  var $columns = array();

  /**
   * flag of sum table handler
   * @var bool
   */
  var $is_sum_table = false;

  /**
   * get object column names
   *
   * @access private
   * @param array $columns
   */
  function get_columns() {
    return $this->columns;
  }

  /**
   * set object column names
   *
   * @access private
   * @param array $columns
   */
  function _set_columns( $columns ) {
    $this->columns = $columns;
  }

  /**
   * set sum table flag
   *
   * @access private
   */
  function _set_sum_table() {
    $this->is_sum_table = true;
  }

  /**
   * copy ranking data from ranking_sum_* table for rebuild rankings
   *
   * @return bool FALSE if failed
   */
  function copy_from_sum_table() {
    if ( $this->is_sum_table ) {
      die( 'invalid operation found in '.__FILE__.' at '.__LINE__ );
    }
    $columns = implode( ', ', $this->columns );
    $name = $this->__table_name;
    $table = $this->db->prefix( $name );
    $sum_name = str_replace( 'ranking_', 'ranking_sum_', $name );
    $sum_table = $this->db->prefix( $sum_name );
    $sql = 'INSERT INTO '.$table.' ( '.$columns.' ) SELECT '.$columns.' FROM '.$sum_table;
    return $this->_query( $sql, true );
  }
}

?>
