<?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: Replace.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/Operation/RowBased.php';
require_once 'PHPUnit/Extensions/Database/Operation/Insert.php';
require_once 'PHPUnit/Extensions/Database/Operation/Update.php';
require_once 'PHPUnit/Extensions/Database/Operation/Exception.php';

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

/**
 * Updates the rows in a given dataset using primary key columns.
 *
 * @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_Operation_Replace extends PHPUnit_Extensions_Database_Operation_RowBased {
  
  protected $operationName = 'REPLACE';

  protected function buildOperationQuery(PHPUnit_Extensions_Database_DataSet_ITableMetaData $databaseTableMetaData, PHPUnit_Extensions_Database_DataSet_ITable $table, PHPUnit_Extensions_Database_DB_IDatabaseConnection $connection) {
    $keys = $databaseTableMetaData->getPrimaryKeys();
    
    $whereStatement = 'WHERE ' . implode(' AND ', $this->buildPreparedColumnArray($keys, $connection));
    
    $query = "
        	SELECT COUNT(*)
        	FROM {$connection->quoteSchemaObject($table->getTableMetaData()->getTableName())}
        	{$whereStatement}
        ";
    
    return $query;
  }

  protected function buildOperationArguments(PHPUnit_Extensions_Database_DataSet_ITableMetaData $databaseTableMetaData, PHPUnit_Extensions_Database_DataSet_ITable $table, $row) {
    $args = array();
    
    foreach ($databaseTableMetaData->getPrimaryKeys() as $columnName) {
      $args[] = $table->getValue($row, $columnName);
    }
    
    return $args;
  }

  /**
   * @param PHPUnit_Extensions_Database_DB_IDatabaseConnection $connection
   * @param PHPUnit_Extensions_Database_DataSet_IDataSet $dataSet
   */
  public function execute(PHPUnit_Extensions_Database_DB_IDatabaseConnection $connection, PHPUnit_Extensions_Database_DataSet_IDataSet $dataSet) {
    $insertOperation = new PHPUnit_Extensions_Database_Operation_Insert();
    $updateOperation = new PHPUnit_Extensions_Database_Operation_Update();
    
    $databaseDataSet = $connection->createDataSet();
    
    foreach ($dataSet as $table) {
      /* @var $table PHPUnit_Extensions_Database_DataSet_ITable */
      $databaseTableMetaData = $databaseDataSet->getTableMetaData($table->getTableMetaData()->getTableName());
      
      $insertQuery = $insertOperation->buildOperationQuery($databaseTableMetaData, $table, $connection);
      $updateQuery = $updateOperation->buildOperationQuery($databaseTableMetaData, $table, $connection);
      $selectQuery = $this->buildOperationQuery($databaseTableMetaData, $table, $connection);
      
      $insertStatement = $connection->getConnection()->prepare($insertQuery);
      $updateStatement = $connection->getConnection()->prepare($updateQuery);
      $selectStatement = $connection->getConnection()->prepare($selectQuery);
      
      for ($i = 0; $i < $table->getRowCount(); $i ++) {
        $selectArgs = $this->buildOperationArguments($databaseTableMetaData, $table, $i);
        $query = $selectQuery;
        $args = $selectArgs;
        try {
          $selectStatement->execute($selectArgs);
          
          if ($selectStatement->fetchColumn(0) > 0) {
            $updateArgs = $updateOperation->buildOperationArguments($databaseTableMetaData, $table, $i);
            $query = $updateQuery;
            $args = $updateArgs;
            $updateStatement->execute($updateArgs);
          } else {
            $insertArgs = $insertOperation->buildOperationArguments($databaseTableMetaData, $table, $i);
            $query = $insertQuery;
            $args = $insertArgs;
            $insertStatement->execute($insertArgs);
          }
        } catch (Exception $e) {
          throw new PHPUnit_Extensions_Database_Operation_Exception($this->operationName, $query, $args, $table, $e->getMessage());
        }
      }
    }
  }
}
?>
