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path: root/modules/rss/controllers/rss.php
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<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2008 Bharat Mediratta
 *
 * 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 of the License, 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., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
class Rss_Controller extends Controller {
  public static $page_size = 30;

  public function albums($id) {
    $item = ORM::factory("item", $id);
    if (!access::can("view", $item)) {
      return Kohana::show_404();
    }

    $page = $this->input->get("page", 1);
    if ($page < 1) {
      url::redirect("rss/albums/{$item->id}");
    }

    $children = $item
      ->viewable()
      ->descendants(self::$page_size, ($page - 1) * self::$page_size, "photo");
    $max_pages = ceil($item->viewable()->descendants_count("photo") / self::$page_size);

    if ($page > $max_pages) {
      url::redirect("rss/albums/{$item->id}?page=$max_pages");
    }

    $view = new View("feed.mrss");
    $view->title = $item->title;
    $view->link = url::abs_site("albums/{$item->id}");
    $view->description = $item->description;
    $view->feed_link = url::abs_site("rss/albums/{$item->id}");
    $view->children = $children;

    if ($page > 1) {
      $previous_page = $page - 1;
      $view->previous_page_link = url::site("rss/albums/{$item->id}?page={$previous_page}");
    }

    if ($page < $max_pages) {
      $next_page = $page + 1;
      $view->next_page_link = url::site("rss/albums/{$item->id}?page={$next_page}");
    }

    // @todo do we want to add an upload date to the items table?
    $view->pub_date = date("D, d M Y H:i:s T");

    rest::http_content_type(rest::RSS);
    print $view;
  }

  public function tags($id) {
    $tag = ORM::factory("tag", $id);
    if (!$tag->loaded) {
      return Kohana::show_404();
    }

    $page = $this->input->get("page", 1);
    if ($page < 1) {
      url::redirect("rss/tags/{$tag->id}");
    }

    $children = $tag->items(self::$page_size, ($page - 1) * self::$page_size, "photo");
    $max_pages = ceil($tag->count / self::$page_size);

    if ($page > $max_pages) {
      url::redirect("rss/tags/{$tag->id}?page=$max_pages");
    }

    $view = new View("feed.mrss");
    $view->title = $tag->name;
    $view->link = url::abs_site("tags/{$tag->id}");
    $view->description = t("Photos related to %tag_name", array("tag_name" => $tag->name));
    $view->feed_link = url::abs_site("rss/tags/{$tag->id}");
    $view->children = $children;

    if ($page > 1) {
      $previous_page = $page - 1;
      $view->previous_page_link = url::site("rss/tags/{$tag->id}?page={$previous_page}");
    }

    if ($page < $max_pages) {
      $next_page = $page + 1;
      $view->next_page_link = url::site("rss/tags/{$tag->id}?page={$next_page}");
    }

    // @todo do we want to add an upload date to the items table?
    $view->pub_date = date("D, d M Y H:i:s T");

    rest::http_content_type(rest::RSS);
    print $view;
  }
}