mirror of
https://github.com/Pathduck/gallery3.git
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eed57674f9
move an item into its own hierarchy, or into an album where you don't have edit permission.
316 lines
8.9 KiB
PHP
316 lines
8.9 KiB
PHP
<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2008 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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class Item_Model extends ORM_MPTT {
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protected $children = 'items';
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private $relative_path = null;
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private $view_restrictions = null;
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var $rules = array(
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"name" => "required|length[0,255]",
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"title" => "required|length[0,255]",
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"description" => "length[0,255]"
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);
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/**
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* Add a set of restrictions to any following queries to restrict access only to items
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* viewable by the active user.
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* @chainable
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*/
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public function viewable() {
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if (is_null($this->view_restrictions)) {
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if (user::active()->admin) {
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$this->view_restrictions = array();
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} else {
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foreach (user::group_ids() as $id) {
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// Separate the first restriction from the rest to make it easier for us to formulate
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// our where clause below
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if (empty($this->view_restrictions)) {
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$this->view_restrictions[0] = "view_$id";
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} else {
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$this->view_restrictions[1]["view_$id"] = access::ALLOW;
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}
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}
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}
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}
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switch (count($this->view_restrictions)) {
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case 0:
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break;
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case 1:
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$this->where($this->view_restrictions);
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break;
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default:
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$this->open_paren();
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$this->where($this->view_restrictions[0], access::ALLOW);
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$this->orwhere($this->view_restrictions[1]);
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$this->close_paren();
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break;
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}
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return $this;
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}
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/**
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* Is this item an album?
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* @return true if it's an album
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*/
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public function is_album() {
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return $this->type == 'album';
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}
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/**
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* Is this item a photo?
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* @return true if it's a photo
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*/
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public function is_photo() {
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return $this->type == 'photo';
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}
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public function delete() {
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$path = $this->file_path();
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parent::delete();
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// If there is no name, the path is invalid so don't try to delete
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if (!empty($this->name)) {
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if ($this->is_album()) {
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dir::unlink($path);
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} else {
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unlink($path);
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}
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}
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}
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/**
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* Move this item to the specified target.
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*
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* @chainable
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* @param Item_Model $target Target item (must be an album
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* @return ORM_MTPP
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*/
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function move_to($target) {
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$original_path = $this->file_path();
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$original_resize_path = $this->resize_path();
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$original_thumb_path = $this->thumb_path();
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parent::move_to($target, true);
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$this->relative_path = null;
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rename($original_path, $this->file_path());
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if ($this->is_album()) {
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rename(dirname($original_resize_path), dirname($this->resize_path()));
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rename(dirname($original_thumb_path), dirname($this->thumb_path()));
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} else {
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rename($original_resize_path, $this->resize_path());
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rename($original_thumb_path, $this->thumb_path());
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}
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return $this;
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}
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/**
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* album: url::site("albums/2")
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* photo: url::site("photos/3")
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*
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* @param string $query the query string (eg "show=3")
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*/
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public function url($query=array()) {
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if ($this->is_album()) {
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$url = url::site("albums/$this->id");
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} else {
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$url = url::site("photos/$this->id");
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}
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if ($query) {
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$url .= "?$query";
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}
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return $url;
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}
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/**
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* album: /var/albums/album1/album2
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* photo: /var/albums/album1/album2/photo.jpg
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*/
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public function file_path() {
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return VARPATH . "albums/" . $this->_relative_path();
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}
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/**
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* album: http://example.com/gallery3/var/resizes/album1/
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* photo: http://example.com/gallery3/var/albums/album1/photo.jpg
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*/
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public function file_url($full_uri=false) {
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return $full_uri ?
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url::abs_file("var/albums/" . $this->_relative_path()) :
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url::file("var/albums/" . $this->_relative_path());
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}
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/**
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* album: /var/resizes/album1/.thumb.jpg
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* photo: /var/albums/album1/photo.thumb.jpg
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*/
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public function thumb_path() {
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return VARPATH . "thumbs/" . $this->_relative_path() .
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($this->type == "album" ? "/.album.jpg" : "");
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}
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/**
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* album: http://example.com/gallery3/var/resizes/album1/.thumb.jpg
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* photo: http://example.com/gallery3/var/albums/album1/photo.thumb.jpg
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*/
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public function thumb_url($full_uri=true) {
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return ($full_uri ?
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url::abs_file("var/thumbs/" . $this->_relative_path()) :
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url::file("var/thumbs/" . $this->_relative_path())) .
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($this->type == "album" ? "/.album.jpg" : "");
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}
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/**
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* album: /var/resizes/album1/.resize.jpg
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* photo: /var/albums/album1/photo.resize.jpg
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*/
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public function resize_path() {
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return VARPATH . "resizes/" . $this->_relative_path() .
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($this->type == "album" ? "/.album.jpg" : "");
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}
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/**
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* album: http://example.com/gallery3/var/resizes/album1/.resize.jpg
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* photo: http://example.com/gallery3/var/albums/album1/photo.resize.jpg
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*/
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public function resize_url($full_uri=true) {
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return ($full_uri ?
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url::abs_file("var/resizes/" . $this->_relative_path()) :
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url::file("var/resizes/" . $this->_relative_path())) .
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($this->type == "album" ? "/.album.jpg" : "");
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}
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/**
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* Return the relative path to this item's file.
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* @return string
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*/
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private function _relative_path() {
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if (empty($this->relative_path)) {
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foreach ($this->parents() as $parent) {
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if ($parent->id > 1) {
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$paths[] = $parent->name;
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}
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}
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$paths[] = $this->name;
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$this->relative_path = implode($paths, "/");
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}
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return $this->relative_path;
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}
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/**
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* @see ORM::__get()
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*/
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public function __get($column) {
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if ($column == "owner") {
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// This relationship depends on an outside module, which may not be present so handle
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// failures gracefully.
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try {
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return model_cache::get("user", $this->owner_id);
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} catch (Exception $e) {
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return null;
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}
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} else {
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return parent::__get($column);
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}
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}
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/**
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* @see ORM::save()
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*/
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public function save() {
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if (!empty($this->changed) && $this->changed != array("view_count" => "view_count")) {
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$this->updated = time();
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if (!$this->loaded) {
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$this->created = $this->updated;
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}
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}
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return parent::save();
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}
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/**
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* Return the Item_Model representing the cover for this album.
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* @return Item_Model or null if there's no cover
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*/
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public function album_cover() {
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if ($this->type != "album") {
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return null;
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}
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if (empty($this->album_cover_item_id)) {
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return null;
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}
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return model_cache::get("item", $this->album_cover_item_id);
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}
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/**
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* Find the position of the given child id in this album. The resulting value is 1-indexed, so
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* the first child in the album is at position 1.
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*/
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public function get_position($child_id) {
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// Right now we only sort by id ascending, so bake that assumption in here.
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// @todo fix this when we introduce sort orders.
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return ORM::factory("item")
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->where("parent_id", $this->id)
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->where("id <=", $child_id)
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->count_all();
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}
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/**
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* Return an <img> tag for the thumbnail.
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* @param array $extra_attrs Extra attributes to add to the img tag
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* @return string
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*/
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public function thumb_tag($extra_attrs, $max=null) {
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$width = $this->thumb_width;
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$height = $this->thumb_height;
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if (isset($max)) {
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if ($width > $height) {
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$height = (int)($max * ($height / $width));
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$width = $max;
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} else {
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$width = (int)($max * ($width / $height));
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$height = $max;
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}
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}
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return html::image(array("src" => $this->thumb_url(),
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"alt" => $this->title,
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"width" => $width,
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"height" => $height),
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$extra_attrs);
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}
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/**
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* Return an <img> tag for the thumbnail.
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* @param array $extra_attrs Extra attributes to add to the img tag
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* @return string
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*/
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public function resize_tag($extra_attrs) {
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return html::image(array("src" => $this->resize_url(),
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"alt" => $this->title,
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"width" => $this->resize_width,
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"height" => $this->resize_height),
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$extra_attrs);
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}
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}
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