pics/controllers/ViewPhotoAlbum.php

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<?php
/*****************************************************************************
* ViewPhotoAlbum.php
* Contains the photo album index controller
*
* Kabuki CMS (C) 2013-2015, Aaron van Geffen
*****************************************************************************/
class ViewPhotoAlbum extends HTMLController
{
protected $iterator;
protected $total_count;
protected $base_url;
const PER_PAGE = 24;
public function __construct($title = 'Photos - ' . SITE_TITLE)
{
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// Ensure we're logged in at this point.
if (!Registry::get('user')->isLoggedIn())
throw new NotAllowedException();
// Viewing an album?
if (isset($_GET['tag']))
{
$tag = Tag::fromSlug($_GET['tag']);
$id_tag = $tag->id_tag;
$title = $tag->tag;
$header_box = $this->getHeaderBox($tag);
}
// View the album root.
else
{
$id_tag = 1;
$tag = Tag::fromId($id_tag);
$title = 'Albums';
}
// What page are we at?
$current_page = isset($_GET['page']) ? (int) $_GET['page'] : 1;
parent::__construct($title . ' - Page ' . $current_page . ' - ' . SITE_TITLE);
if (isset($header_box))
$this->page->adopt($header_box);
// Who contributed to this album?
$contributors = $tag->getContributorList();
// Enumerate possible filters
$filters = [];
if (!empty($contributors))
{
$filters[''] = ['id_user' => null, 'caption' => 'Show all photos', 'link' => $tag->getUrl()];
foreach ($contributors as $contributor)
{
$filters[$contributor['slug']] = [
'id_user' => $contributor['id_user'],
'caption' => sprintf('By %s (%s photos)',
$contributor['first_name'], $contributor['num_assets']),
'link' => $tag->getUrl() . '/?by=' . $contributor['slug'],
];
}
}
// Limit to a particular uploader?
$active_filter = '';
$id_user_uploaded = null;
if (!empty($_GET['by']))
{
if (!isset($filters[$_GET['by']]))
throw new UnexpectedValueException('Invalid filter for this album or tag.');
$active_filter = $_GET['by'];
$id_user_uploaded = $filters[$active_filter]['id_user'];
$filters[$active_filter]['is_active'] = true;
}
// Add an interface to query and modify the album/tag
$buttons = $this->getAlbumButtons($tag);
$button_strip = new AlbumButtonBox($buttons, $filters, $active_filter);
$this->page->adopt($button_strip);
// Fetch subalbums, but only if we're on the first page.
if ($current_page === 1)
{
$albums = $this->getAlbums($id_tag);
$index = new AlbumIndex($albums);
$this->page->adopt($index);
}
// Load a photo mosaic for the current tag.
list($mosaic, $total_count) = $this->getPhotoMosaic($id_tag, $id_user_uploaded, $current_page, !isset($is_person));
if (isset($mosaic))
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{
$index = new PhotosIndex($mosaic, Registry::get('user')->isAdmin());
$this->page->adopt($index);
if ($id_tag > 1)
$index->setUrlSuffix('?in=' . $id_tag);
}
// Make a page index as needed, while we're at it.
if ($total_count > self::PER_PAGE)
{
$index = new PageIndex([
'recordCount' => $total_count,
'items_per_page' => self::PER_PAGE,
'start' => ($current_page - 1) * self::PER_PAGE,
'base_url' => $tag->getUrl(),
'page_slug' => 'page/%PAGE%/' . (isset($active_filter) ? '?by=' . $active_filter : ''),
'index_class' => 'pagination-lg justify-content-around justify-content-lg-center',
]);
$this->page->adopt(new PageIndexWidget($index));
}
// Set the canonical url.
$this->page->setCanonicalUrl($tag->getUrl() . ($current_page > 1 ? 'page/' . $current_page . '/' : ''));
}
public function getPhotoMosaic($id_tag, $id_user_uploaded, $page, $sort_linear)
{
// Create an iterator.
list($this->iterator, $total_count) = AssetIterator::getByOptions([
'id_tag' => $id_tag,
'id_user_uploaded' => $id_user_uploaded,
'order' => 'date_captured',
'direction' => $sort_linear ? 'asc' : 'desc',
'limit' => self::PER_PAGE,
'page' => $page,
], true);
$mosaic = $total_count > 0 ? new PhotoMosaic($this->iterator) : null;
return [$mosaic, $total_count];
}
private function getAlbums($id_tag)
{
// Fetch subalbums.
$subalbums = Tag::getAlbums($id_tag);
// What assets are we using?
$id_assets = array_map(function($album) {
return (int) $album['id_asset_thumb'];
}, $subalbums);
// Fetch assets for thumbnails.
$assets = Asset::fromIds($id_assets, 'object');
// Build album list.
$albums = [];
foreach ($subalbums as $album)
{
$albums[$album['id_tag']] = [
'id_tag' => $album['id_tag'],
'caption' => $album['tag'],
'link' => BASEURL . '/' . $album['slug'] . '/',
'thumbnail' => !empty($album['id_asset_thumb']) && isset($assets[$album['id_asset_thumb']])
? $assets[$album['id_asset_thumb']]->getImage() : null,
];
}
return $albums;
}
private function getAlbumButtons(Tag $tag)
{
$buttons = [];
$user = Registry::get('user');
if ($user->isLoggedIn())
{
$buttons[] = [
'url' => BASEURL . '/download/?tag=' . $tag->id_tag,
'caption' => 'Download album',
];
}
if ($tag->id_parent != 0)
{
if ($tag->kind === 'Album')
{
$buttons[] = [
'url' => BASEURL . '/uploadmedia/?tag=' . $tag->id_tag,
'caption' => 'Upload photos here',
];
}
if ($user->isAdmin())
{
if ($tag->kind === 'Album')
{
$buttons[] = [
'url' => BASEURL . '/editalbum/?id=' . $tag->id_tag,
'caption' => 'Edit album',
];
}
elseif ($tag->kind === 'Person')
{
$buttons[] = [
'url' => BASEURL . '/edittag/?id=' . $tag->id_tag,
'caption' => 'Edit tag',
];
}
}
}
if ($user->isAdmin() && (!isset($tag) || $tag->kind === 'Album'))
{
$buttons[] = [
'url' => BASEURL . '/addalbum/?tag=' . $tag->id_tag,
'caption' => 'Create subalbum',
];
}
return $buttons;
}
private function getHeaderBox(Tag $tag)
{
// Can we go up a level?
if ($tag->id_parent != 0)
{
$ptag = Tag::fromId($tag->id_parent);
$back_link = BASEURL . '/' . (!empty($ptag->slug) ? $ptag->slug . '/' : '');
$back_link_title = 'Back to &quot;' . $ptag->tag . '&quot;';
}
elseif ($tag->kind === 'Person')
{
$back_link = BASEURL . '/people/';
$back_link_title = 'Back to &quot;People&quot;';
$is_person = true;
}
$description = !empty($tag->description) ? $tag->description : '';
return new AlbumHeaderBox($tag->tag, $description, $back_link, $back_link_title);
}
public function __destruct()
{
if (isset($this->iterator))
$this->iterator->clean();
}
}