<?php
/**
 * PHPUnit
 *
 * Copyright (c) 2002-2008, Sebastian Bergmann <sb@sebastian-bergmann.de>.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *   * Neither the name of Sebastian Bergmann nor the names of his
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @category   Testing
 * @package    PHPUnit
 * @author     Mike Lively <m@digitalsandwich.com>
 * @copyright  2002-2008 Sebastian Bergmann <sb@sebastian-bergmann.de>
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    SVN: $Id: TableMetaDataFilter.php 1985 2007-12-26 18:11:55Z sb $
 * @link       http://www.phpunit.de/
 * @since      File available since Release 3.2.0
 */

require_once 'PHPUnit/Framework.php';
require_once 'PHPUnit/Util/Filter.php';

require_once 'PHPUnit/Extensions/Database/DataSet/AbstractTableMetaData.php';

PHPUnit_Util_Filter::addFileToFilter(__FILE__, 'PHPUNIT');

/**
 * A TableMetaData decorator that allows filtering out columns from another 
 * metaData object.
 *
 * @category   Testing
 * @package    PHPUnit
 * @author     Mike Lively <m@digitalsandwich.com>
 * @copyright  2008 Mike Lively <m@digitalsandwich.com>
 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License
 * @version    Release: 3.2.9
 * @link       http://www.phpunit.de/
 * @since      Class available since Release 3.2.0
 */
class PHPUnit_Extensions_Database_DataSet_TableMetaDataFilter extends PHPUnit_Extensions_Database_DataSet_AbstractTableMetaData
{

    /**
     * The table meta data being decorated.
     * @var PHPUnit_Extensions_Database_DataSet_ITableMetaData
     */
    protected $originalMetaData;

    /**
     * The columns to exclude from the meta data.
     * @var Array
     */
    protected $excludeColumns;

    /**
     * Creates a new filtered table meta data object filtering out 
     * $excludeColumns.
     *
     * @param PHPUnit_Extensions_Database_DataSet_ITableMetaData $originalMetaData
     * @param array $excludeColumns
     */
    public function __construct(PHPUnit_Extensions_Database_DataSet_ITableMetaData $originalMetaData, Array $excludeColumns)
    {
        $this->originalMetaData = $originalMetaData;
        $this->excludeColumns = $excludeColumns;
    }

    /**
     * Returns the names of the columns in the table.
     *
     * @return array
     */
    public function getColumns()
    {
        return array_values(array_diff($this->originalMetaData->getColumns(), $this->excludeColumns));
    }

    /**
     * Returns the names of the primary key columns in the table.
     *
     * @return array
     */
    public function getPrimaryKeys()
    {
        return $this->originalMetaData->getPrimaryKeys();
    }

    /**
     * Returns the name of the table.
     *
     * @return string
     */
    public function getTableName()
    {
        return $this->originalMetaData->getTableName();
    }
}
?>
