<?php
# $Id$
# http://www.mapbender.org/index.php/class_database_table_key.php
# Copyright (C) 2002 CCGIS 
#
# 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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

class database_table_key{
	/*
	* Class variables:
	*/
	var $keyName;		
	var $columnName;
	var $isPrimary = false; 
	
	function database_table_key($aKeyName, $aColumnName, $isPrimary) {
		$this->keyName = $aKeyName;
		$this->columnName = $aColumnName;
		$this->isPrimary = $isPrimary;
	}
	
	function getKey() {
		return $this->keyName . "," . $this->columnName . "," .  $this->isPrimary;
	}
	
	function isPrimary() {
		return $this->isPrimary;
	}
	
	function getColumnName() {
		return $this->columnName;
	}
	
	function getKeyName() {
		return $this->keyName;
	}
	
	function getMysql() {
		$sql = "";
		if ($this->isPrimary()) {
			$sql .= " PRIMARY";
		}
		$sql .= " KEY";
		if ($this->getKeyName()) {
			$sql .= " " . $this->getKeyName();
		}
		$sql .= " (" . $this->getColumnName() . ")";
		$sql .= "\n\n";
		return $sql;
	}
	
	function destroyKey () {
		settype(&$this, 'null');
	}
}

?>