<?php
/**
 * GForge Project Management Facility
 *
 * Copyright 2002 GForge, LLC
 * http://gforge.org/
 *
 * @version   $Id: ProjectGroup.class,v 1.10 2003/06/23 19:47:54 tcopeland Exp $
 *
 * This file is part of GForge.
 *
 * GForge 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 of the License, or
 * (at your option) any later version.
 *
 * GForge 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 GForge; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  US
 */
/*
	Project/Task Manager
	By Tim Perdue, Sourceforge, 11/99
	Heavy rewrite by Tim Perdue April 2000

	Total rewrite in OO and GForge coding guidelines 12/2002 by Tim Perdue
*/


require_once('common/include/Error.class');

	/**
	*	Fetches a ProjectGroup object from the database
	*
	* @param group_project_id	the projectgroup id  
	*	@param data	whether or not the db result handle is passed in
	*	@return	the ProjectGroup object
	*/
	function &projectgroup_get_object($group_project_id,$data=false) {
		global $PROJECTGROUP_OBJ;
		if (!isset($PROJECTGROUP_OBJ["_".$group_project_id."_"])) {
			if ($data) {
				//the db result handle was passed in
			} else {
				$res=db_query("SELECT * FROM project_group_list
				WHERE group_project_id='$group_project_id'");
				if (db_numrows($res) <1 ) {
					$PROJECTGROUP_OBJ["_".$group_project_id."_"]=false;
					return false;
				}
				$data =& db_fetch_array($res);
			}
			$Group =& group_get_object($data["group_id"]);
			$PROJECTGROUP_OBJ["_".$group_project_id."_"]= new ProjectGroup($Group,$group_project_id,$data);
		}
		return $PROJECTGROUP_OBJ["_".$group_project_id."_"];
	}


class ProjectGroup extends Error {

	/**
	 * Associative array of data from db.
	 *
	 * @var	 array   $data_array.
	 */
	var $data_array;

	/**
	 * The Group object.
	 *
	 * @var	 object  $Group.
	 */
	var $Group;
	var $statuses;
	var $categories;
	var $technicians;

	/**
	 *  Constructor.
	 *
	 *	@param	object	The Group object to which this forum is associated.
	 *  @param  int	 The group_project_id.
	 *  @param  array	The associative array of data.
	 *	@return	boolean	success.
	 */
	function ProjectGroup(&$Group, $group_project_id=false, $arr=false) {
		$this->Error();
		if (!$Group || !is_object($Group)) {
			$this->setError('ProjectGroup:: No Valid Group Object');
			return false;
		}
		if ($Group->isError()) {
			$this->setError('ProjectGroup:: '.$Group->getErrorMessage());
			return false;
		}
		$this->Group =& $Group;

		if ($group_project_id) {
			if (!$arr || !is_array($arr)) {
				if (!$this->fetchData($group_project_id)) {
					return false;
				}
			} else {
				$this->data_array =& $arr;
				if ($this->data_array['group_id'] != $this->Group->getID()) {
					$this->setError('Group_id in db result does not match Group Object');
					return false;
				}
			}
			if (!$this->isPublic()) {
				$perm =& $this->Group->getPermission( session_get_user() );

				if (!$perm || !is_object($perm) || !$perm->isMember()) {
					$this->setPermissionDeniedError();
					$this->data_array = null;
					return false;
				}
			}
		}
		return true;
	}

	/**
	 *	create - create a new ProjectGroup in the database.
	 *
	 *	@param	string	The project name.
	 *	@param	string	The project description.
	 *	@param	int	Whether it is (1) public or (0) private .
	 *	@param	string	The email address to send new notifications to.
	 *	@return boolean success.
	 */
	function create($project_name,$description,$is_public=1,$send_all_posts_to='') {

		global $Language;
		
		if (strlen($project_name) < 3) {
			$this->setError($Language->getText('pm_projectgroup','error_min_name_length'));
			return false;
		}
		if (strlen($description) < 10) {
			$this->setError($Language->getText('pm_projectgroup','error_min_desc_length'));
			return false;
		}
		if ($send_all_posts_to && !validate_email($send_all_posts_to)) {
			$this->setInvalidEmailError();
			return false;
		}

		$perm =& $this->Group->getPermission( session_get_user() );

		if (!$perm || !is_object($perm) || !$perm->isPMAdmin()) {
			$this->setPermissionDeniedError();
			return false;
		}

		$sql="INSERT INTO project_group_list (group_id,project_name,is_public,
			description,send_all_posts_to)
			VALUES ('".$this->Group->getId()."','". htmlspecialchars($project_name) ."','$is_public',
			'". htmlspecialchars($description) ."','$send_all_posts_to')";

		db_begin();
		$result=db_query($sql);
		if (!$result) {
			db_rollback();
			$this->setError('Error Adding ProjectGroup: '.db_error());
			return false;
		}
		$this->group_project_id=db_insertid($result,'project_group_list','group_project_id');
		$this->fetchData($this->group_project_id);

		db_commit();
		return true;
	}

	/**
	 *  fetchData - re-fetch the data for this ProjectGroup from the database.
	 *
	 *  @param  int	 The project group ID.
	 *  @return	boolean	success.
	 */
	function fetchData($group_project_id) {
		$res=db_query("SELECT * FROM project_group_list
			WHERE group_project_id='$group_project_id'
			AND group_id='". $this->Group->getID() ."'");
		if (!$res || db_numrows($res) < 1) {
			$this->setError('ProjectGroup:: Invalid group_project_id');
			return false;
		}
		$this->data_array =& db_fetch_array($res);
		db_free_result($res);
		return true;
	}

	/**
	 *	getGroup - get the Group object this ProjectGroup is associated with.
	 *
	 *	@return	object	The Group object.
	 */
	function &getGroup() {
		return $this->Group;
	}

	/**
	 *	getID - get this GroupProjectID.
	 *
	 *	@return	int	The group_project_id #.
	 */
	function getID() {
		return $this->data_array['group_project_id'];
	}

	/**
	 *	isPublic - Is this projectGroup open to the general public.
	 *
	 *	@return boolean	allow.
	 */
	function isPublic() {
		return $this->data_array['is_public'];
	}

	/**
	 *	getName - get the name of this projectGroup.
	 *
	 *	@return string	The name of this projectGroup.
	 */
	function getName() {
		return $this->data_array['project_name'];
	}

	/**
	 *	getSendAllPostsTo - an optional email address to send all task updates to.
	 *
	 *	@return string	The email address.
	 */
	function getSendAllPostsTo() {
		return $this->data_array['send_all_posts_to'];
	}

	/**
	 *	getDescription - the description of this ProjectGroup.
	 *
	 *	@return string	The description.
	 */
	function getDescription() {
		return $this->data_array['description'];
	}

	/**
	 *	getTaskCount - the total number of tasks in this ProjectGroup.
	 *
	 *	@return int	The count.
	 * /
	function getTaskCount() {
		return $this->data_array['total'];
	}*/

	/**
	 * getStatuses - Return result set of statuses.
	 *
	 * @returns Database result set.
	 */
	function getStatuses () {
		if (!$this->statuses) {
			$sql='SELECT * FROM project_status';
			$this->statuses=db_query($sql);
		}
		return $this->statuses;
	}

	/**
	 * getCategories - Return result set of categories.
	 *
	 * @returns Database result set.
	 */
	function getCategories () {
		if (!$this->categories) {
			$sql="SELECT category_id,category_name 
				FROM project_category 
				WHERE group_project_id='".$this->getID()."'";
			$this->categories=db_query($sql);
		}
		return $this->categories;
	}

	/**
	 * getTechnicians - Return a result set of pm technicians in this group.
	 *
	 * @returns Datbase result set.
	 */
	function getTechnicians () {
		if (!$this->technicians) {
			$sql="SELECT users.user_id,users.realname 
				FROM users,user_group 
				WHERE users.user_id=user_group.user_id 
				AND user_group.group_id='". $this->Group->getID() ."' 
				AND user_group.project_flags IN (1,2) 
				ORDER BY users.user_name";
			$this->technicians=db_query($sql);
		}
		return $this->technicians;
	}

	/**
	 *	create - create a new ProjectGroup in the database.
	 *
	 *	@param	string	The project name.
	 *	@param	string	The project description.
	 *	@param	int	Whether it is (1) public or (0) private .
	 *	@param	string	The email address to send new notifications to.
	 *	@return boolean success.
	 */
	function update($project_name,$description,$is_public=1,$send_all_posts_to='') {

		global $Language;
		if (strlen($project_name) < 3) {
			$this->setError($Language->getText('pm_projectgroup','error_min_name_length'));
			return false;
		}
		if (strlen($description) < 10) {
			$this->setError($Language->getText('pm_projectgroup','error_min_desc_length'));
			return false;
		}
		if ($send_all_posts_to && !validate_email($send_all_posts_to)) {
			$this->setInvalidEmailError();
			return false;
		}

		$perm =& $this->Group->getPermission( session_get_user() );

		if (!$perm || !is_object($perm) || !$perm->isPMAdmin()) {
			$this->setPermissionDeniedError();
			return false;
		}

		$res=db_query("UPDATE project_group_list SET
			project_name='". htmlspecialchars($project_name) ."',
			description='". htmlspecialchars($description) ."',
			is_public='$is_public',
			send_all_posts_to='$send_all_posts_to'
			WHERE group_id='".$this->Group->getID()."'
			AND group_project_id='".$this->getID()."'");

		if (!$res || db_affected_rows($res) < 1) {
			$this->setError('Error On Update: '.db_error());
			return false;
		}
		return true;
	}

}

?>