diff options
author | Bernhard Posselt <dev@bernhard-posselt.com> | 2016-07-23 21:24:54 +0200 |
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committer | Bernhard Posselt <dev@bernhard-posselt.com> | 2016-07-23 21:24:54 +0200 |
commit | 004fcbbcc7609ca83807f2e38967ef54f469bf72 (patch) | |
tree | 49eb99b4ea92b2045793fc567f719b31ec7f9042 /db/itemmapper.php | |
parent | 60abc0ed4438c9b6fda245b0dc33cb483bc2aeaf (diff) |
Move to new directory structure
Diffstat (limited to 'db/itemmapper.php')
-rw-r--r-- | db/itemmapper.php | 403 |
1 files changed, 0 insertions, 403 deletions
diff --git a/db/itemmapper.php b/db/itemmapper.php deleted file mode 100644 index 091022c6c..000000000 --- a/db/itemmapper.php +++ /dev/null @@ -1,403 +0,0 @@ -<?php -/** - * ownCloud - News - * - * This file is licensed under the Affero General Public License version 3 or - * later. See the COPYING file. - * - * @author Alessandro Cosentino <cosenal@gmail.com> - * @author Bernhard Posselt <dev@bernhard-posselt.com> - * @copyright Alessandro Cosentino 2012 - * @copyright Bernhard Posselt 2012, 2014 - */ - -namespace OCA\News\Db; - -use Exception; -use OCA\News\Utility\Time; -use OCP\IDBConnection; - - -class ItemMapper extends NewsMapper { - - public function __construct(IDBConnection $db, Time $time) { - parent::__construct($db, 'news_items', Item::class, $time); - } - - private function makeSelectQuery($prependTo = '', $oldestFirst = false, - $distinctFingerprint = false) { - if ($oldestFirst) { - $ordering = 'ASC'; - } else { - $ordering = 'DESC'; - } - - return 'SELECT `items`.* FROM `*PREFIX*news_items` `items` ' . - 'JOIN `*PREFIX*news_feeds` `feeds` ' . - 'ON `feeds`.`id` = `items`.`feed_id` ' . - 'AND `feeds`.`deleted_at` = 0 ' . - 'AND `feeds`.`user_id` = ? ' . - $prependTo . - 'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` ' . - 'ON `folders`.`id` = `feeds`.`folder_id` ' . - 'WHERE `feeds`.`folder_id` = 0 ' . - 'OR `folders`.`deleted_at` = 0 ' . - 'ORDER BY `items`.`id` ' . $ordering; - } - - private function makeSelectQueryStatus($prependTo, $status, - $oldestFirst = false, $search = [], - $distinctFingerprint = false) { - $status = (int)$status; - $count = count($search); - - // WARNING: Potential SQL injection if you change this carelessly - $sql = 'AND ((`items`.`status` & ' . $status . ') = ' . $status . ') '; - $sql .= str_repeat('AND `items`.`search_index` LIKE ? ', $count); - $sql .= $prependTo; - - return $this->makeSelectQuery($sql, $oldestFirst, $distinctFingerprint); - } - - /** - * wrap and escape search parameters in a like statement - * - * @param string[] $search an array of strings that should be searched - * @return array with like parameters - */ - private function buildLikeParameters($search = []) { - return array_map(function ($param) { - $param = addcslashes($param, '\\_%'); - return '%' . mb_strtolower($param, 'UTF-8') . '%'; - }, $search); - } - - /** - * @param int $id - * @param string $userId - * @return \OCA\News\Db\Item - */ - public function find($id, $userId) { - $sql = $this->makeSelectQuery('AND `items`.`id` = ? '); - return $this->findEntity($sql, [$userId, $id]); - } - - public function starredCount($userId) { - $sql = 'SELECT COUNT(*) AS size FROM `*PREFIX*news_items` `items` ' . - 'JOIN `*PREFIX*news_feeds` `feeds` ' . - 'ON `feeds`.`id` = `items`.`feed_id` ' . - 'AND `feeds`.`deleted_at` = 0 ' . - 'AND `feeds`.`user_id` = ? ' . - 'AND ((`items`.`status` & ' . StatusFlag::STARRED . ') = ' . - StatusFlag::STARRED . ')' . - 'LEFT OUTER JOIN `*PREFIX*news_folders` `folders` ' . - 'ON `folders`.`id` = `feeds`.`folder_id` ' . - 'WHERE `feeds`.`folder_id` = 0 ' . - 'OR `folders`.`deleted_at` = 0'; - - $params = [$userId]; - - $result = $this->execute($sql, $params)->fetch(); - - return (int)$result['size']; - } - - - public function readAll($highestItemId, $time, $userId) { - $sql = 'UPDATE `*PREFIX*news_items` ' . - 'SET `status` = `status` & ? ' . - ', `last_modified` = ? ' . - 'WHERE `feed_id` IN (' . - 'SELECT `id` FROM `*PREFIX*news_feeds` ' . - 'WHERE `user_id` = ? ' . - ') ' . - 'AND `id` <= ?'; - $params = [~StatusFlag::UNREAD, $time, $userId, $highestItemId]; - $this->execute($sql, $params); - } - - - public function readFolder($folderId, $highestItemId, $time, $userId) { - $sql = 'UPDATE `*PREFIX*news_items` ' . - 'SET `status` = `status` & ? ' . - ', `last_modified` = ? ' . - 'WHERE `feed_id` IN (' . - 'SELECT `id` FROM `*PREFIX*news_feeds` ' . - 'WHERE `folder_id` = ? ' . - 'AND `user_id` = ? ' . - ') ' . - 'AND `id` <= ?'; - $params = [~StatusFlag::UNREAD, $time, $folderId, $userId, - $highestItemId]; - $this->execute($sql, $params); - } - - - public function readFeed($feedId, $highestItemId, $time, $userId) { - $sql = 'UPDATE `*PREFIX*news_items` ' . - 'SET `status` = `status` & ? ' . - ', `last_modified` = ? ' . - 'WHERE `feed_id` = ? ' . - 'AND `id` <= ? ' . - 'AND EXISTS (' . - 'SELECT * FROM `*PREFIX*news_feeds` ' . - 'WHERE `user_id` = ? ' . - 'AND `id` = ? ) '; - $params = [~StatusFlag::UNREAD, $time, $feedId, $highestItemId, - $userId, $feedId]; - - $this->execute($sql, $params); - } - - - private function getOperator($oldestFirst) { - if ($oldestFirst) { - return '>'; - } else { - return '<'; - } - } - - - public function findAllNew($updatedSince, $status, $userId) { - $sql = $this->makeSelectQueryStatus( - 'AND `items`.`last_modified` >= ? ', $status); - $params = [$userId, $updatedSince]; - return $this->findEntities($sql, $params); - } - - - public function findAllNewFolder($id, $updatedSince, $status, $userId) { - $sql = 'AND `feeds`.`folder_id` = ? ' . - 'AND `items`.`last_modified` >= ? '; - $sql = $this->makeSelectQueryStatus($sql, $status); - $params = [$userId, $id, $updatedSince]; - return $this->findEntities($sql, $params); - } - - - public function findAllNewFeed($id, $updatedSince, $status, $userId) { - $sql = 'AND `items`.`feed_id` = ? ' . - 'AND `items`.`last_modified` >= ? '; - $sql = $this->makeSelectQueryStatus($sql, $status); - $params = [$userId, $id, $updatedSince]; - return $this->findEntities($sql, $params); - } - - - private function findEntitiesIgnoringNegativeLimit($sql, $params, $limit) { - // ignore limit if negative to offer a way to return all feeds - if ($limit >= 0) { - return $this->findEntities($sql, $params, $limit); - } else { - return $this->findEntities($sql, $params); - } - } - - - public function findAllFeed($id, $limit, $offset, $status, $oldestFirst, - $userId, $search = []) { - $params = [$userId]; - $params = array_merge($params, $this->buildLikeParameters($search)); - $params[] = $id; - - $sql = 'AND `items`.`feed_id` = ? '; - if ($offset !== 0) { - $sql .= 'AND `items`.`id` ' . - $this->getOperator($oldestFirst) . ' ? '; - $params[] = $offset; - } - $sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, - $search); - return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); - } - - - public function findAllFolder($id, $limit, $offset, $status, $oldestFirst, - $userId, $search = []) { - $params = [$userId]; - $params = array_merge($params, $this->buildLikeParameters($search)); - $params[] = $id; - - $sql = 'AND `feeds`.`folder_id` = ? '; - if ($offset !== 0) { - $sql .= 'AND `items`.`id` ' . - $this->getOperator($oldestFirst) . ' ? '; - $params[] = $offset; - } - $sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, - $search); - return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); - } - - - public function findAll($limit, $offset, $status, $oldestFirst, $userId, - $search = []) { - $params = [$userId]; - $params = array_merge($params, $this->buildLikeParameters($search)); - $sql = ''; - if ($offset !== 0) { - $sql .= 'AND `items`.`id` ' . - $this->getOperator($oldestFirst) . ' ? '; - $params[] = $offset; - } - $sql = $this->makeSelectQueryStatus($sql, $status, $oldestFirst, - $search); - - return $this->findEntitiesIgnoringNegativeLimit($sql, $params, $limit); - } - - - public function findAllUnreadOrStarred($userId) { - $params = [$userId]; - $status = StatusFlag::UNREAD | StatusFlag::STARRED; - $sql = 'AND ((`items`.`status` & ' . $status . ') > 0) '; - $sql = $this->makeSelectQuery($sql); - return $this->findEntities($sql, $params); - } - - - public function findByGuidHash($guidHash, $feedId, $userId) { - $sql = $this->makeSelectQuery( - 'AND `items`.`guid_hash` = ? ' . - 'AND `feeds`.`id` = ? '); - - return $this->findEntity($sql, [$userId, $guidHash, $feedId]); - } - - - /** - * Delete all items for feeds that have over $threshold unread and not - * starred items - * @param int $threshold the number of items that should be deleted - */ - public function deleteReadOlderThanThreshold($threshold) { - $status = StatusFlag::STARRED | StatusFlag::UNREAD; - $params = [$status, $threshold]; - - $sql = 'SELECT (COUNT(*) - `feeds`.`articles_per_update`) AS `size`, ' . - '`feeds`.`id` AS `feed_id`, `feeds`.`articles_per_update` ' . - 'FROM `*PREFIX*news_items` `items` ' . - 'JOIN `*PREFIX*news_feeds` `feeds` ' . - 'ON `feeds`.`id` = `items`.`feed_id` ' . - 'AND NOT ((`items`.`status` & ?) > 0) ' . - 'GROUP BY `feeds`.`id`, `feeds`.`articles_per_update` ' . - 'HAVING COUNT(*) > ?'; - - $result = $this->execute($sql, $params); - - while ($row = $result->fetch()) { - - $size = (int)$row['size']; - $limit = $size - $threshold; - - if ($limit > 0) { - $params = [$status, $row['feed_id'], $limit]; - - $sql = 'DELETE FROM `*PREFIX*news_items` ' . - 'WHERE `id` IN (' . - 'SELECT `id` FROM `*PREFIX*news_items` ' . - 'WHERE NOT ((`status` & ?) > 0) ' . - 'AND `feed_id` = ? ' . - 'ORDER BY `id` ASC ' . - 'LIMIT ?' . - ')'; - - $this->execute($sql, $params); - } - } - - } - - - public function getNewestItemId($userId) { - $sql = 'SELECT MAX(`items`.`id`) AS `max_id` ' . - 'FROM `*PREFIX*news_items` `items` ' . - 'JOIN `*PREFIX*news_feeds` `feeds` ' . - 'ON `feeds`.`id` = `items`.`feed_id` ' . - 'AND `feeds`.`user_id` = ?'; - $params = [$userId]; - - $result = $this->findOneQuery($sql, $params); - - return (int)$result['max_id']; - } - - - /** - * Deletes all items of a user - * @param string $userId the name of the user - */ - public function deleteUser($userId) { - $sql = 'DELETE FROM `*PREFIX*news_items` ' . - 'WHERE `feed_id` IN (' . - 'SELECT `feeds`.`id` FROM `*PREFIX*news_feeds` `feeds` ' . - 'WHERE `feeds`.`user_id` = ?' . - ')'; - - $this->execute($sql, [$userId]); - } - - - /** - * Returns a list of ids and userid of all items - */ - public function findAllIds($limit = null, $offset = null) { - $sql = 'SELECT `id` FROM `*PREFIX*news_items`'; - return $this->execute($sql, [], $limit, $offset)->fetchAll(); - } - - /** - * Update search indices of all items - */ - public function updateSearchIndices() { - // update indices in steps to prevent memory issues on larger systems - $step = 1000; // update 1000 items at a time - $itemCount = 1; - $offset = 0; - - // stop condition if there are no previously fetched items - while ($itemCount > 0) { - $items = $this->findAllIds($step, $offset); - $itemCount = count($items); - $this->updateSearchIndex($items); - $offset += $step; - } - } - - private function updateSearchIndex(array $items = []) { - foreach ($items as $row) { - $sql = 'SELECT * FROM `*PREFIX*news_items` WHERE `id` = ?'; - $params = [$row['id']]; - $item = $this->findEntity($sql, $params); - $item->generateSearchIndex(); - $this->update($item); - } - } - - public function readItem($itemId, $isRead, $lastModified, $userId) { - $item = $this->find($itemId, $userId); - - // reading an item should set all of the same items as read, whereas - // marking an item as unread should only mark the selected instance - // as unread - if ($isRead) { - $sql = 'UPDATE `*PREFIX*news_items` - SET `status` = `status` & ?, - `last_modified` = ? - WHERE `fingerprint` = ? - AND `feed_id` IN ( - SELECT `f`.`id` FROM `*PREFIX*news_feeds` AS `f` - WHERE `f`.`user_id` = ? - )'; - $params = [~StatusFlag::UNREAD, $lastModified, - $item->getFingerprint(), $userId]; - $this->execute($sql, $params); - } else { - $item->setLastModified($lastModified); - $item->setUnread(); - $this->update($item); - } - } - -} |