friendica/src/Model/Post/Category.php

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<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Model\Post;
use Friendica\Database\DBA;
use Friendica\Model\Item;
use Friendica\Model\Tag;
/**
* Class Category
*
* This Model class handles category table interactions.
* This tables stores user-applied categories related to posts.
*/
class Category
{
const UNKNOWN = 0;
const CATEGORY = 3;
const FILE = 5;
/**
* Generates the legacy item.file field string from an item ID.
* Includes only file and category terms.
*
* @param int $item_id
* @return string
* @throws \Exception
*/
public static function getTextByURIId(int $uri_id, int $uid)
{
$file_text = '';
$tags = DBA::selectToArray('category-view', ['type', 'name'], ['uri-id' => $uri_id, 'uid' => $uid]);
foreach ($tags as $tag) {
if ($tag['type'] == self::CATEGORY) {
$file_text .= '<' . $tag['name'] . '>';
} else {
$file_text .= '[' . $tag['name'] . ']';
}
}
return $file_text;
}
/**
* Inserts new terms for the provided item ID based on the legacy item.file field BBCode content.
* Deletes all previous file terms for the same item ID.
*
* @param integer $item_id item id
* @param $files
* @return void
* @throws \Exception
*/
public static function storeTextByURIId(int $uri_id, int $uid, string $files)
{
$message = Item::selectFirst(['deleted'], ['uri-id' => $uri_id, 'uid' => $uid]);
if (DBA::isResult($message)) {
// Clean up all tags
DBA::delete('post-category', ['uri-id' => $uri_id, 'uid' => $uid]);
if ($message['deleted']) {
return;
}
}
if (preg_match_all("/\[(.*?)\]/ism", $files, $result)) {
foreach ($result[1] as $file) {
$tagid = Tag::getID($file);
if (empty($tagid)) {
continue;
}
DBA::insert('post-category', [
'uri-id' => $uri_id,
'uid' => $uid,
'type' => self::FILE,
'tid' => $tagid
]);
}
}
if (preg_match_all("/\<(.*?)\>/ism", $files, $result)) {
foreach ($result[1] as $file) {
$tagid = Tag::getID($file);
if (empty($tagid)) {
continue;
}
DBA::insert('post-category', [
'uri-id' => $uri_id,
'uid' => $uid,
'type' => self::CATEGORY,
'tid' => $tagid
]);
}
}
}
}