<?php
/*
 *  $Id$
 *
 * 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.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.phpdoctrine.com>.
 */
/**
 * Doctrine_AuditLog
 *
 * @package     Doctrine
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @category    Object Relational Mapping
 * @link        www.phpdoctrine.com
 * @since       1.0
 * @version     $Revision$
 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
 */
class Doctrine_AuditLog
{
    public function audit()
    {

    }
    public function deleteTriggerSql(Doctrine_Table $table)
    {
    	$conn = $table->getConnection();
    	$columnNames = $table->getColumnNames();
    	$oldColumns  = array_map(array($this, 'formatOld'), $columnNames);
        $sql  = 'CREATE TRIGGER '
              . $conn->quoteIdentifier($table->getTableName()) . '_ddt' . ' DELETE ON '
              . $conn->quoteIdentifier($table->getTableName())
              . ' BEGIN'
              . ' INSERT INTO ' . $table->getTableName() . '_dvt ('
              . implode(', ', array_map(array($conn, 'quoteIdentifier'), $columnNames))
              . ') VALUES ('
              . implode(', ', array_map(array($conn, 'quoteIdentifier'), $oldColumns))
              . ');'
              . ' END;';
        return $sql;
    }
    public function updateTriggerSql(Doctrine_Table $table)
    {
    	$conn = $table->getConnection();
    	$columnNames = $table->getColumnNames();
    	$oldColumns  = array_map(array($this, 'formatOld'), $columnNames);
        $sql  = 'CREATE TRIGGER '
              . $conn->quoteIdentifier($table->getTableName()) . '_dut' . ' UPDATE ON '
              . $conn->quoteIdentifier($table->getTableName())
              . ' BEGIN'
              . ' INSERT INTO ' . $table->getTableName() . '_dvt ('
              . implode(', ', array_map(array($conn, 'quoteIdentifier'), $columnNames))
              . ') VALUES ('
              . implode(', ', array_map(array($conn, 'quoteIdentifier'), $oldColumns))
              . ');'
              . ' END;';
        return $sql;
    }
    public function formatOld($column)
    {
        return 'old.' . $column;
    }
}