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<?php |
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/** |
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* ownCloud - News |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. See the COPYING file. |
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* |
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* @author Alessandro Cosentino <[email protected]> |
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* @author Bernhard Posselt <[email protected]> |
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* @copyright Alessandro Cosentino 2012 |
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* @copyright Bernhard Posselt 2012, 2014 |
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*/ |
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namespace OCA\News\Db; |
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use Exception; |
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use OCP\IDBConnection; |
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class ItemMapper extends NewsMapper { |
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public function __construct(IDBConnection $db){ |
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parent::__construct($db, 'news_items', Item::class); |
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} |
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private function makeSelectQuery($prependTo='', $oldestFirst=false, |
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$distinctFingerprint=false){ |
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if($oldestFirst) { |
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$ordering = 'ASC'; |
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} else { |
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$ordering = 'DESC'; |
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} |
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return 'SELECT `items`.* FROM `*PREFIX*news_items` `items` '. |
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'JOIN `*PREFIX*news_feeds` `feeds` ' . |
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'ON `feeds`.`id` = `items`.`feed_id` '. |
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'AND `feeds`.`deleted_at` = 0 ' . |
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'AND `feeds`.`user_id` = ? ' . |
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$prependTo . |
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'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` ' . |
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'ON `folders`.`id` = `feeds`.`folder_id` ' . |
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'WHERE `feeds`.`folder_id` = 0 ' . |
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'OR `folders`.`deleted_at` = 0 ' . |
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'ORDER BY `items`.`id` ' . $ordering; |
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} |
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private function makeSelectQueryStatus($prependTo, $status, |
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$oldestFirst=false, $search=[], |
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$distinctFingerprint=false) { |
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$status = (int) $status; |
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$count = count($search); |
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// WARNING: Potential SQL injection if you change this carelessly |
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$sql = 'AND ((`items`.`status` & ' . $status . ') = ' . $status . ') '; |
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$sql .= str_repeat('AND `items`.`search_index` LIKE ? ', $count); |
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$sql .= $prependTo; |
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return $this->makeSelectQuery($sql, $oldestFirst, $distinctFingerprint); |
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} |
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/** |
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* wrap and escape search parameters in a like statement |
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* |
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* @param string[] $search an array of strings that should be searched |
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* @return array with like parameters |
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*/ |
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private function buildLikeParameters($search=[]) { |
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return array_map(function ($param) { |
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$param = addcslashes($param, '\\_%'); |
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return '%' . strtolower($param) . '%'; |
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}, $search); |
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} |
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/** |
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* @param int $id |
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* @param string $userId |
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* @return \OCA\News\Db\Item |
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*/ |
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public function find($id, $userId){ |
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$sql = $this->makeSelectQuery('AND `items`.`id` = ? '); |
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return $this->findEntity($sql, [$userId, $id]); |
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} |
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public function starredCount($userId){ |
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$sql = 'SELECT COUNT(*) AS size FROM `*PREFIX*news_items` `items` '. |
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'JOIN `*PREFIX*news_feeds` `feeds` ' . |
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'ON `feeds`.`id` = `items`.`feed_id` '. |
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'AND `feeds`.`deleted_at` = 0 ' . |
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'AND `feeds`.`user_id` = ? ' . |
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'AND ((`items`.`status` & ' . StatusFlag::STARRED . ') = ' . |
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StatusFlag::STARRED . ')' . |
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'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` ' . |
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'ON `folders`.`id` = `feeds`.`folder_id` ' . |
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'WHERE `feeds`.`folder_id` = 0 ' . |
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'OR `folders`.`deleted_at` = 0'; |
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$params = [$userId]; |
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$result = $this->execute($sql, $params)->fetch(); |
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return (int) $result['size']; |
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} |
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public function readAll($highestItemId, $time, $userId) { |
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$sql = 'UPDATE `*PREFIX*news_items` ' . |
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'SET `status` = `status` & ? ' . |
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', `last_modified` = ? ' . |
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'WHERE `feed_id` IN (' . |
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'SELECT `id` FROM `*PREFIX*news_feeds` ' . |
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'WHERE `user_id` = ? ' . |
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') '. |
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'AND `id` <= ?'; |
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$params = [~StatusFlag::UNREAD, $time, $userId, $highestItemId]; |
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$this->execute($sql, $params); |
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} |
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public function readFolder($folderId, $highestItemId, $time, $userId) { |
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$sql = 'UPDATE `*PREFIX*news_items` ' . |
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'SET `status` = `status` & ? ' . |
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', `last_modified` = ? ' . |
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'WHERE `feed_id` IN (' . |
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'SELECT `id` FROM `*PREFIX*news_feeds` ' . |
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'WHERE `folder_id` = ? ' . |
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'AND `user_id` = ? ' . |
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') '. |
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'AND `id` <= ?'; |
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$params = [~StatusFlag::UNREAD, $time, $folderId, $userId, |
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$highestItemId]; |
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$this->execute($sql, $params); |
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} |
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public function readFeed($feedId, $highestItemId, $time, $userId){ |
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$sql = 'UPDATE `*PREFIX*news_items` ' . |
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'SET `status` = `status` & ? ' . |
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', `last_modified` = ? ' . |
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'WHERE `feed_id` = ? ' . |
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'AND `id` <= ? ' . |
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'AND EXISTS (' . |
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'SELECT * FROM `*PREFIX*news_feeds` ' . |
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'WHERE `user_id` = ? ' . |
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'AND `id` = ? ) '; |
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$params = [~StatusFlag::UNREAD, $time, $feedId, $highestItemId, |
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$userId, $feedId]; |
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$this->execute($sql, $params); |
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} |
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private function getOperator($oldestFirst) { |
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if($oldestFirst) { |
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return '>'; |
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} else { |
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return '<'; |
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} |
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} |
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public function findAllNew($updatedSince, $status, $userId){ |
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$sql = $this->makeSelectQueryStatus( |
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'AND `items`.`last_modified` >= ? ', $status); |
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$params = [$userId, $updatedSince]; |
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return $this->findEntities($sql, $params); |
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} |
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public function findAllNewFolder($id, $updatedSince, $status, $userId){ |
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$sql = 'AND `feeds`.`folder_id` = ? ' . |
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'AND `items`.`last_modified` >= ? '; |
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$sql = $this->makeSelectQueryStatus($sql, $status); |
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$params = [$userId, $id, $updatedSince]; |
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return $this->findEntities($sql, $params); |
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} |
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public function findAllNewFeed($id, $updatedSince, $status, $userId){ |
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$sql = 'AND `items`.`feed_id` = ? ' . |
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'AND `items`.`last_modified` >= ? '; |
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$sql = $this->makeSelectQueryStatus($sql, $status); |
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$params = [$userId, $id, $updatedSince]; |
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return $this->findEntities($sql, $params); |
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} |
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private function findEntitiesIgnoringNegativeLimit($sql, $params, $limit) { |
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// ignore limit if negative to offer a way to return all feeds |
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if ($limit >= 0) { |
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return $this->findEntities($sql, $params, $limit); |
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} else { |
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return $this->findEntities($sql, $params); |
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} |
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} |
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public function findAllFeed($id, $limit, $offset, $status, $oldestFirst, |
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$userId, $search=[]){ |
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$params = [$userId]; |
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$params = array_merge($params, $this->buildLikeParameters($search)); |
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$params[] = $id; |
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$sql = 'AND `items`.`feed_id` = ? '; |
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if($offset !== 0){ |
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$sql .= 'AND `items`.`id` ' . |
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$this->getOperator($oldestFirst) . ' ? '; |
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$params[] = $offset; |
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} |
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$sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, |
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$search); |
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return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); |
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} |
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public function findAllFolder($id, $limit, $offset, $status, $oldestFirst, |
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$userId, $search=[]){ |
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$params = [$userId]; |
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$params = array_merge($params, $this->buildLikeParameters($search)); |
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$params[] = $id; |
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$sql = 'AND `feeds`.`folder_id` = ? '; |
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if($offset !== 0){ |
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$sql .= 'AND `items`.`id` ' . |
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$this->getOperator($oldestFirst) . ' ? '; |
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$params[] = $offset; |
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} |
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$sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, |
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$search); |
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return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); |
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} |
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public function findAll($limit, $offset, $status, $oldestFirst, $userId, |
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$search=[]){ |
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$params = [$userId]; |
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$params = array_merge($params, $this->buildLikeParameters($search)); |
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$sql = ''; |
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if($offset !== 0){ |
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$sql .= 'AND `items`.`id` ' . |
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$this->getOperator($oldestFirst) . ' ? '; |
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$params[] = $offset; |
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} |
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$sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, |
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$search); |
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return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); |
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} |
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250
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public function findAllUnreadOrStarred($userId) { |
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$params = [$userId]; |
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$status = StatusFlag::UNREAD | StatusFlag::STARRED; |
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$sql = 'AND ((`items`.`status` & ' . $status . ') > 0) '; |
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$sql = $this->makeSelectQuery($sql); |
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return $this->findEntities($sql, $params); |
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} |
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259
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260
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1 |
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public function findByGuidHash($guidHash, $feedId, $userId){ |
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1 |
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$sql = $this->makeSelectQuery( |
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'AND `items`.`guid_hash` = ? ' . |
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1 |
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'AND `feeds`.`id` = ? '); |
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1 |
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return $this->findEntity($sql, [$userId, $guidHash, $feedId]); |
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} |
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268
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269
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/** |
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270
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* Delete all items for feeds that have over $threshold unread and not |
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271
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* starred items |
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272
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* @param int $threshold the number of items that should be deleted |
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273
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*/ |
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274
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2 |
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public function deleteReadOlderThanThreshold($threshold){ |
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275
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2 |
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$status = StatusFlag::STARRED | StatusFlag::UNREAD; |
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2 |
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$params = [$status, $threshold]; |
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278
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$sql = 'SELECT (COUNT(*) - `feeds`.`articles_per_update`) AS `size`, ' . |
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279
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2 |
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'`feeds`.`id` AS `feed_id`, `feeds`.`articles_per_update` ' . |
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280
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2 |
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'FROM `*PREFIX*news_items` `items` ' . |
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281
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2 |
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'JOIN `*PREFIX*news_feeds` `feeds` ' . |
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282
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2 |
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'ON `feeds`.`id` = `items`.`feed_id` ' . |
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283
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2 |
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'AND NOT ((`items`.`status` & ?) > 0) ' . |
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284
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2 |
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'GROUP BY `feeds`.`id`, `feeds`.`articles_per_update` ' . |
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285
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2 |
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'HAVING COUNT(*) > ?'; |
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286
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287
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2 |
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$result = $this->execute($sql, $params); |
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288
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289
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2 |
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while($row = $result->fetch()) { |
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290
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291
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2 |
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$size = (int) $row['size']; |
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292
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2 |
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$limit = $size - $threshold; |
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293
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294
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2 |
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if($limit > 0) { |
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295
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1 |
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$params = [$status, $row['feed_id'], $limit]; |
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296
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297
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$sql = 'DELETE FROM `*PREFIX*news_items` ' . |
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298
|
1 |
|
'WHERE `id` IN (' . |
|
299
|
1 |
|
'SELECT `id` FROM `*PREFIX*news_items` ' . |
|
300
|
1 |
|
'WHERE NOT ((`status` & ?) > 0) ' . |
|
301
|
1 |
|
'AND `feed_id` = ? ' . |
|
302
|
1 |
|
'ORDER BY `id` ASC ' . |
|
303
|
1 |
|
'LIMIT ?' . |
|
304
|
1 |
|
')'; |
|
305
|
|
|
|
|
306
|
1 |
|
$this->execute($sql, $params); |
|
307
|
1 |
|
} |
|
308
|
2 |
|
} |
|
309
|
|
|
|
|
310
|
2 |
|
} |
|
311
|
|
|
|
|
312
|
|
|
|
|
313
|
2 |
|
public function getNewestItemId($userId) { |
|
314
|
|
|
$sql = 'SELECT MAX(`items`.`id`) AS `max_id` ' . |
|
315
|
2 |
|
'FROM `*PREFIX*news_items` `items` '. |
|
316
|
2 |
|
'JOIN `*PREFIX*news_feeds` `feeds` ' . |
|
317
|
2 |
|
'ON `feeds`.`id` = `items`.`feed_id` '. |
|
318
|
2 |
|
'AND `feeds`.`user_id` = ?'; |
|
319
|
2 |
|
$params = [$userId]; |
|
320
|
|
|
|
|
321
|
2 |
|
$result = $this->findOneQuery($sql, $params); |
|
322
|
|
|
|
|
323
|
1 |
|
return (int) $result['max_id']; |
|
324
|
|
|
} |
|
325
|
|
|
|
|
326
|
|
|
|
|
327
|
|
|
/** |
|
328
|
|
|
* Deletes all items of a user |
|
329
|
|
|
* @param string $userId the name of the user |
|
330
|
|
|
*/ |
|
331
|
1 |
|
public function deleteUser($userId) { |
|
332
|
|
|
$sql = 'DELETE FROM `*PREFIX*news_items` ' . |
|
333
|
1 |
|
'WHERE `feed_id` IN (' . |
|
334
|
1 |
|
'SELECT `feeds`.`id` FROM `*PREFIX*news_feeds` `feeds` ' . |
|
335
|
1 |
|
'WHERE `feeds`.`user_id` = ?' . |
|
336
|
1 |
|
')'; |
|
337
|
|
|
|
|
338
|
1 |
|
$this->execute($sql, [$userId]); |
|
339
|
1 |
|
} |
|
340
|
|
|
|
|
341
|
|
|
|
|
342
|
|
|
/** |
|
343
|
|
|
* Returns a list of ids and userid of all items |
|
344
|
|
|
*/ |
|
345
|
|
|
public function findAllIds($limit=null, $offset=null) { |
|
346
|
|
|
$sql = 'SELECT `id` FROM `*PREFIX*news_items`'; |
|
347
|
|
|
return $this->execute($sql, [], $limit, $offset)->fetchAll(); |
|
348
|
|
|
} |
|
349
|
|
|
|
|
350
|
|
|
/** |
|
351
|
|
|
* Update search indices of all items |
|
352
|
|
|
*/ |
|
353
|
|
|
public function updateSearchIndices() { |
|
354
|
|
|
// update indices in steps to prevent memory issues on larger systems |
|
355
|
|
|
$step = 1000; // update 1000 items at a time |
|
356
|
|
|
$itemCount = 1; |
|
357
|
|
|
$offset = 0; |
|
358
|
|
|
|
|
359
|
|
|
// stop condition if there are no previously fetched items |
|
360
|
|
|
while ($itemCount > 0) { |
|
361
|
|
|
$items = $this->findAllIds($step, $offset); |
|
362
|
|
|
$itemCount = count($items); |
|
363
|
|
|
$this->updateSearchIndex($items); |
|
364
|
|
|
$offset += $step; |
|
365
|
|
|
} |
|
366
|
|
|
} |
|
367
|
|
|
|
|
368
|
|
|
private function updateSearchIndex(array $items=[]) { |
|
369
|
|
|
foreach ($items as $row) { |
|
370
|
|
|
try { |
|
371
|
|
|
$sql = 'SELECT * FROM `*PREFIX*news_items` WHERE `id` = ?'; |
|
372
|
|
|
$params = [$row['id']]; |
|
373
|
|
|
$item = $this->findEntity($sql, $params); |
|
374
|
|
|
$item->generateSearchIndex(); |
|
375
|
|
|
$this->update($item); |
|
376
|
|
|
} catch (Exception $e) { |
|
377
|
|
|
continue; |
|
378
|
|
|
} |
|
379
|
|
|
} |
|
380
|
|
|
} |
|
381
|
|
|
|
|
382
|
|
|
|
|
383
|
|
|
} |
|
384
|
|
|
|