forked from Public/pics
77 lines
2.0 KiB
PHP
77 lines
2.0 KiB
PHP
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<?php
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/*****************************************************************************
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* PhotoAlbum.php
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* Contains key class PhotoAlbum.
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*
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* Kabuki CMS (C) 2013-2015, Aaron van Geffen
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*****************************************************************************/
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class PhotoAlbum extends Tag
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{
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public static function getHierarchy($order, $direction)
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{
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$db = Registry::get('db');
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$res = $db->query('
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SELECT *
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FROM tags
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WHERE kind = {string:album}
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ORDER BY id_parent, {raw:order}',
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[
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'order' => $order . ($direction == 'up' ? ' ASC' : ' DESC'),
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'album' => 'Album',
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]);
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$albums_by_parent = [];
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while ($row = $db->fetch_assoc($res))
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{
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if (!isset($albums_by_parent[$row['id_parent']]))
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$albums_by_parent[$row['id_parent']] = [];
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$albums_by_parent[$row['id_parent']][] = $row + ['children' => []];
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}
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$albums = self::getChildrenRecursively(0, 0, $albums_by_parent);
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$rows = self::flattenChildrenRecursively($albums);
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return $rows;
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}
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private static function getChildrenRecursively($id_parent, $level, &$albums_by_parent)
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{
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$children = [];
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if (!isset($albums_by_parent[$id_parent]))
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return $children;
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foreach ($albums_by_parent[$id_parent] as $child)
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{
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if (isset($albums_by_parent[$child['id_tag']]))
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$child['children'] = self::getChildrenRecursively($child['id_tag'], $level + 1, $albums_by_parent);
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$child['tag'] = ($level ? str_repeat('—', $level * 2) . ' ' : '') . $child['tag'];
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$children[] = $child;
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}
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return $children;
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}
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private static function flattenChildrenRecursively($albums)
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{
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if (empty($albums))
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return [];
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$rows = [];
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foreach ($albums as $album)
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{
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$rows[] = array_intersect_key($album, array_flip(['id_tag', 'tag', 'slug', 'count']));
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if (!empty($album['children']))
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{
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$children = self::flattenChildrenRecursively($album['children']);
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foreach ($children as $child)
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$rows[] = array_intersect_key($child, array_flip(['id_tag', 'tag', 'slug', 'count']));
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}
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}
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return $rows;
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}
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}
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