<?php

/**
 * 
 * Copyright (C) 2007  IVLOS
 * 
 * This file is part of PDF Annotation Engine.
 * 
 * PDF Annotation Engine 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.
 * 
 * PDF Annotation Engine 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 PDF Annotation Engine.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * PDF Annotation Engine was originaly made by Infi, The Netherlands.
 * 
 * If you have any questions or suggestions, mail us at hide@address.com
 * 
 **/

class document extends crud_db {
	// static methods

	function from_heading_id($id) {
		$heading = heading::from_id($id);
		
		return document::from_id($heading->document_id);
	}
	
	// regular methods
	
	function check_owner() {
		return ($this->owner_id == user::id());
	}
	
	function is_visible() {
		return ($this->visible == 'true');
	}
	
	function delete() {
		$headings = $this->get_headings();
		
		foreach($headings as $heading) {
			$heading->delete();
		}
		
		shell_exec("rm -rf upload/document-$this->id");
		
		return parent::delete(__CLASS__);
	}
	
	function owner() {
		return user::from_id($this->owner_id);
	}
	
	function get_group() {
		return group::from_id($this->group_id);
	}
	
	function get_headings() {
		return heading::select(array('document_id' => $this->id));
	}
	
	function add_heading($array) {
		$heading = new heading();
		
		$fields = array('title');
		
		foreach($fields as $field) {
			$heading->$field = $array[$field];
		}
		
		$heading->document_id = $this->id;
		
		return $heading->insert();
	}
	
	// inherited static methods

	function from_row($row) {
		return parent::from_row($row, __CLASS__);
	}
	
	function from_values($values) {
		return parent::from_values($values, __CLASS__);
	}
	
	function array_from_id($id) {
		return parent::array_from_id($id, __CLASS__);
	}
	
	function from_id($id) {
		return parent::from_id($id, __CLASS__);
	}

	function select($filter=array()) {
		return parent::select($filter, __CLASS__);
	}
	
	function assoc_list($field, $filter=array()) {
		return parent::assoc_list($field, $filter, __CLASS__);
	}
	
	// inherited regular methods

	function update() {
		return parent::update(__CLASS__);
	}
	
	function insert() {
		return parent::insert(__CLASS__);
	}
}