<?php
/**
 * Copyright 2009, 2010 AEGEE-Europe
 *
 * This file is part of AEGEE-Europe Online Membership System.
 *
 * AEGEE-Europe Online Membership System 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 3 of the License, or (at your option) any later version.
 *
 * AEGEE-Europe Online Membership System 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 AEGEE-Europe Online Membership System.  If not, see
 * <http://www.gnu.org/licenses/>.
 */

/**
 * Diet Database Access Object. This class provides functionality to
 * load and save countries
 */

require_once(FILESYSTEMROOTPATH."include/classes/IDao.php");
require_once(FILESYSTEMROOTPATH."events/include/model/Diet.php");

class DietDao implements IDao {
	/** MySQL object */
	private $mysql;

	/**
	 * Default constructor
	 */
	public function __construct(MySQL $mysql) {
		$this->mysql = $mysql;
	}

	/**
	 * Load a diet by id
	 *
	 * @param string name of the diet to be loaded
	 * @return Diet containing the data of the requested diet, or NULL in case diet does not exist
	 */
	public function load($id) {
		$query = "SELECT `id`, `name`, `active`, `description` FROM ".EVENTS_MYSQL_INTRANET_DB.".`diets` WHERE `id`='".$id."'";
		if( $this->mysql->query($query) ) {
			return new Diet ($this->mysql->fetchArray());
		}else {
			return array();
		}
	}

	/**
	 * Load all active diets
	 *
	 * @return array of Diet
	 */
	public function loadActive() {
		$query = "SELECT `id`, `name`, `active`, `description` FROM ".EVENTS_MYSQL_INTRANET_DB.".`diets` WHERE `active`='1' ORDER BY `name`";
		if( $this->mysql->query($query) ) {
			$ret = array();
			while( $row = $this->mysql->fetchArray() ) {
				$ret[ $row['id'] ] = new Diet($row);
			}
			return $ret;
		}else {
			return array();
		}
	}

	/**
	 * Load all diets
	 *
	 * @return array of Diet
	 */
	public function loadAll() {
		$query = "SELECT `id`, `name`, `active`, `description` FROM ".EVENTS_MYSQL_INTRANET_DB.".`diets` ORDER BY `active` DESC, `name`";
		if( $this->mysql->query($query) ) {
			$ret = array();
			while( $row = $this->mysql->fetchArray() ) {
				$ret[ $row['id'] ] = new Diet($row);
			}
			return $ret;
		}else {
			return array();
		}
	}

	/**
	 * Save or update a diet
	 *
	 * @param Diet object with the diet data
	 * @return boolean true in case of success, false otherwise
	 */
	public function saveOrUpdate(IModel $diet) {

	}
}
?>