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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\Service; |
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use OCP\IConfig; |
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use OCP\AppFramework\Db\DoesNotExistException; |
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use OCP\AppFramework\Utility\ITimeFactory; |
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use OCA\News\Db\ItemMapper; |
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use OCA\News\Db\StatusFlag; |
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use OCA\News\Db\FeedType; |
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use OCA\News\Config\Config; |
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class ItemService extends Service { |
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private $statusFlag; |
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private $config; |
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private $timeFactory; |
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private $itemMapper; |
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private $systemConfig; |
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public function __construct(ItemMapper $itemMapper, |
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StatusFlag $statusFlag, |
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ITimeFactory $timeFactory, |
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Config $config, |
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IConfig $systemConfig){ |
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parent::__construct($itemMapper); |
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$this->statusFlag = $statusFlag; |
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$this->config = $config; |
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$this->timeFactory = $timeFactory; |
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$this->itemMapper = $itemMapper; |
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$this->systemConfig = $systemConfig; |
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} |
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/** |
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* Returns all new items |
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* @param int $id the id of the feed, 0 for starred or all items |
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* @param int $type the type of the feed |
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* @param int $updatedSince a timestamp with the last modification date |
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* returns only items with a >= modified timestamp |
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* @param boolean $showAll if unread items should also be returned |
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* @param string $userId the name of the user |
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* @return array of items |
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*/ |
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public function findAllNew($id, $type, $updatedSince, $showAll, $userId){ |
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$status = $this->statusFlag->typeToStatus($type, $showAll); |
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switch($type){ |
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3 |
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case FeedType::FEED: |
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return $this->itemMapper->findAllNewFeed( |
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$id, $updatedSince, $status, $userId |
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); |
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case FeedType::FOLDER: |
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return $this->itemMapper->findAllNewFolder( |
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$id, $updatedSince, $status, $userId |
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); |
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default: |
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return $this->itemMapper->findAllNew( |
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$updatedSince, $status, $userId |
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); |
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} |
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} |
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/** |
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* Returns all items |
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* @param int $id the id of the feed, 0 for starred or all items |
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* @param int $type the type of the feed |
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* @param int $limit how many items should be returned |
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* @param int $offset the offset |
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* @param boolean $showAll if unread items should also be returned |
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* @param boolean $oldestFirst if it should be ordered by oldest first |
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* @param string $userId the name of the user |
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* @param string[] $search an array of keywords that the result should |
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* contain in either the author, title, link or body |
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* @return array of items |
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*/ |
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public function findAll($id, $type, $limit, $offset, $showAll, $oldestFirst, |
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$userId, $search=[]){ |
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$status = $this->statusFlag->typeToStatus($type, $showAll); |
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switch($type){ |
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case FeedType::FEED: |
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return $this->itemMapper->findAllFeed( |
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$id, $limit, $offset, $status, $oldestFirst, $userId, |
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$search |
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); |
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case FeedType::FOLDER: |
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return $this->itemMapper->findAllFolder( |
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$id, $limit, $offset, $status, $oldestFirst, $userId, |
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$search |
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); |
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default: |
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return $this->itemMapper->findAll( |
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$limit, $offset, $status, $oldestFirst, $userId, $search |
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); |
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} |
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} |
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/** |
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* Star or unstar an item |
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* @param int $feedId the id of the item's feed that should be starred |
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* @param string $guidHash the guidHash of the item that should be starred |
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* @param boolean $isStarred if true the item will be marked as starred, |
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* if false unstar |
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* @param string $userId the name of the user for security reasons |
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* @throws ServiceNotFoundException if the item does not exist |
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*/ |
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public function star($feedId, $guidHash, $isStarred, $userId){ |
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try { |
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$item = $this->itemMapper->findByGuidHash( |
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$guidHash, $feedId, $userId |
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); |
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$item->setLastModified($this->timeFactory->getTime()); |
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if($isStarred){ |
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$item->setStarred(); |
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} else { |
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$item->setUnstarred(); |
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} |
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$this->itemMapper->update($item); |
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} catch(DoesNotExistException $ex) { |
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throw new ServiceNotFoundException($ex->getMessage()); |
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} |
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} |
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/** |
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* Read or unread an item |
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* @param int $itemId the id of the item that should be read |
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* @param boolean $isRead if true the item will be marked as read, |
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* if false unread |
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* @param string $userId the name of the user for security reasons |
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* @throws ServiceNotFoundException if the item does not exist |
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*/ |
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public function read($itemId, $isRead, $userId){ |
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$item = $this->find($itemId, $userId); |
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$item->setLastModified($this->timeFactory->getTime()); |
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if($isRead){ |
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$item->setRead(); |
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} else { |
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$item->setUnread(); |
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} |
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$this->itemMapper->update($item); |
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} |
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/** |
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* Set all items read |
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* @param int $highestItemId all items below that are marked read. This is |
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* used to prevent marking items as read that the users hasn't seen yet |
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* @param string $userId the name of the user |
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*/ |
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public function readAll($highestItemId, $userId){ |
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$time = $this->timeFactory->getTime(); |
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$this->itemMapper->readAll($highestItemId, $time, $userId); |
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} |
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/** |
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* Set a folder read |
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* @param int $folderId the id of the folder that should be marked read |
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* @param int $highestItemId all items below that are marked read. This is |
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* used to prevent marking items as read that the users hasn't seen yet |
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* @param string $userId the name of the user |
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*/ |
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public function readFolder($folderId, $highestItemId, $userId){ |
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$time = $this->timeFactory->getTime(); |
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$this->itemMapper->readFolder( |
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$folderId, $highestItemId, $time, $userId |
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); |
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} |
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/** |
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* Set a feed read |
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* @param int $feedId the id of the feed that should be marked read |
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* @param int $highestItemId all items below that are marked read. This is |
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* used to prevent marking items as read that the users hasn't seen yet |
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* @param string $userId the name of the user |
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*/ |
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1 |
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public function readFeed($feedId, $highestItemId, $userId){ |
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$time = $this->timeFactory->getTime(); |
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$this->itemMapper->readFeed($feedId, $highestItemId, $time, $userId); |
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} |
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/** |
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* This method deletes all unread feeds that are not starred and over the |
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* count of $this->autoPurgeCount starting by the oldest. This is to clean |
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* up the database so that old entries don't spam your db. As criteria for |
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* old, the id is taken |
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*/ |
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public function autoPurgeOld(){ |
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$count = $this->config->getAutoPurgeCount(); |
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if ($count >= 0) { |
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1 |
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$this->itemMapper->deleteReadOlderThanThreshold($count); |
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} |
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2 |
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} |
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/** |
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* Returns the newest item id, use this for marking feeds read |
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* @param string $userId the name of the user |
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* @throws ServiceNotFoundException if there is no newest item |
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* @return int |
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*/ |
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2 |
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public function getNewestItemId($userId) { |
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try { |
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return $this->itemMapper->getNewestItemId($userId); |
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1 |
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} catch(DoesNotExistException $ex) { |
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1 |
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throw new ServiceNotFoundException($ex->getMessage()); |
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} |
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} |
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/** |
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* Returns the starred count |
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* @param string $userId the name of the user |
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* @return int the count |
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*/ |
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1 |
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public function starredCount($userId){ |
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1 |
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return $this->itemMapper->starredCount($userId); |
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} |
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/** |
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* @param string $userId from which user the items should be taken |
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* @return array of items which are starred or unread |
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*/ |
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1 |
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public function getUnreadOrStarred($userId) { |
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1 |
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return $this->itemMapper->findAllUnreadOrStarred($userId); |
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} |
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/** |
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* Deletes all items of a user |
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* @param string $userId the name of the user |
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*/ |
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public function deleteUser($userId) { |
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$this->itemMapper->deleteUser($userId); |
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} |
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/** |
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* Regenerates the search index for all items |
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*/ |
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public function generateSearchIndices($progressbar=null) { |
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if ($progressbar) { |
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$this->systemConfig->setSystemValue('maintenance', true); |
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$progressbar = $progressbar(count($rows)); |
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$progressbar->setFormat('verbose'); |
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} |
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$rows = $this->itemMapper->findAllItemIdsAndUsers(); |
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foreach ($rows as $row) { |
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$item = $this->find($row['id'], $row['user_id']); |
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$item->generateSearchIndex(); |
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$this->itemMapper->update($item); |
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if ($progressbar) { |
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$progressbar->advance(); |
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} |
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} |
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281
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if ($progressbar) { |
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$progressbar->finish(); |
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$this->systemConfig->setSystemValue('maintenance', false); |
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} |
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286
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} |
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288
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} |
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This error can happen if you refactor code and forget to move the variable initialization.
Let’s take a look at a simple example:
The above code is perfectly fine. Now imagine that we re-order the statements:
In that case,
$xwould be read before it is initialized. This was a very basic example, however the principle is the same for the found issue.