Move \OC\Comments to PSR-4

3 files changed, 0 insertions, 1197 deletions

diff --git a/lib/private/comments/comment.php b/lib/private/comments/comment.php
deleted file mode 100644
index 60663d61578..00000000000
--- a/lib/private/comments/comment.php
+++ /dev/null
@@ -1,382 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\Comments;
-
-use OCP\Comments\IComment;
-use OCP\Comments\IllegalIDChangeException;
-use OCP\Comments\MessageTooLongException;
-
-class Comment implements IComment {
-
-	protected $data = [
-		'id'              => '',
-		'parentId'        => '0',
-		'topmostParentId' => '0',
-		'childrenCount'   => '0',
-		'message'         => '',
-		'verb'            => '',
-		'actorType'       => '',
-		'actorId'         => '',
-		'objectType'      => '',
-		'objectId'        => '',
-		'creationDT'      => null,
-		'latestChildDT'   => null,
-	];
-
-	/**
-	 * Comment constructor.
-	 *
-	 * @param [] $data	optional, array with keys according to column names from
-	 * 					the comments database scheme
-	 */
-	public function __construct(array $data = null) {
-		if(is_array($data)) {
-			$this->fromArray($data);
-		}
-	}
-
-	/**
-	 * returns the ID of the comment
-	 *
-	 * It may return an empty string, if the comment was not stored.
-	 * It is expected that the concrete Comment implementation gives an ID
-	 * by itself (e.g. after saving).
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getId() {
-		return $this->data['id'];
-	}
-
-	/**
-	 * sets the ID of the comment and returns itself
-	 *
-	 * It is only allowed to set the ID only, if the current id is an empty
-	 * string (which means it is not stored in a database, storage or whatever
-	 * the concrete implementation does), or vice versa. Changing a given ID is
-	 * not permitted and must result in an IllegalIDChangeException.
-	 *
-	 * @param string $id
-	 * @return IComment
-	 * @throws IllegalIDChangeException
-	 * @since 9.0.0
-	 */
-	public function setId($id) {
-		if(!is_string($id)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-
-		$id = trim($id);
-		if($this->data['id'] === '' || ($this->data['id'] !== '' && $id === '')) {
-			$this->data['id'] = $id;
-			return $this;
-		}
-
-		throw new IllegalIDChangeException('Not allowed to assign a new ID to an already saved comment.');
-	}
-
-	/**
-	 * returns the parent ID of the comment
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getParentId() {
-		return $this->data['parentId'];
-	}
-
-	/**
-	 * sets the parent ID and returns itself
-	 *
-	 * @param string $parentId
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setParentId($parentId) {
-		if(!is_string($parentId)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		$this->data['parentId'] = trim($parentId);
-		return $this;
-	}
-
-	/**
-	 * returns the topmost parent ID of the comment
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getTopmostParentId() {
-		return $this->data['topmostParentId'];
-	}
-
-
-	/**
-	 * sets the topmost parent ID and returns itself
-	 *
-	 * @param string $id
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setTopmostParentId($id) {
-		if(!is_string($id)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		$this->data['topmostParentId'] = trim($id);
-		return $this;
-	}
-
-	/**
-	 * returns the number of children
-	 *
-	 * @return int
-	 * @since 9.0.0
-	 */
-	public function getChildrenCount() {
-		return $this->data['childrenCount'];
-	}
-
-	/**
-	 * sets the number of children
-	 *
-	 * @param int $count
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setChildrenCount($count) {
-		if(!is_int($count)) {
-			throw new \InvalidArgumentException('Integer expected.');
-		}
-		$this->data['childrenCount'] = $count;
-		return $this;
-	}
-
-	/**
-	 * returns the message of the comment
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getMessage() {
-		return $this->data['message'];
-	}
-
-	/**
-	 * sets the message of the comment and returns itself
-	 *
-	 * @param string $message
-	 * @return IComment
-	 * @throws MessageTooLongException
-	 * @since 9.0.0
-	 */
-	public function setMessage($message) {
-		if(!is_string($message)) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		$message = trim($message);
-		if(mb_strlen($message, 'UTF-8') > IComment::MAX_MESSAGE_LENGTH) {
-			throw new MessageTooLongException('Comment message must not exceed ' . IComment::MAX_MESSAGE_LENGTH . ' characters');
-		}
-		$this->data['message'] = $message;
-		return $this;
-	}
-
-	/**
-	 * returns the verb of the comment
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getVerb() {
-		return $this->data['verb'];
-	}
-
-	/**
-	 * sets the verb of the comment, e.g. 'comment' or 'like'
-	 *
-	 * @param string $verb
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setVerb($verb) {
-		if(!is_string($verb) || !trim($verb)) {
-			throw new \InvalidArgumentException('Non-empty String expected.');
-		}
-		$this->data['verb'] = trim($verb);
-		return $this;
-	}
-
-	/**
-	 * returns the actor type
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getActorType() {
-		return $this->data['actorType'];
-	}
-
-	/**
-	 * returns the actor ID
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getActorId() {
-		return $this->data['actorId'];
-	}
-
-	/**
-	 * sets (overwrites) the actor type and id
-	 *
-	 * @param string $actorType e.g. 'users'
-	 * @param string $actorId e.g. 'zombie234'
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setActor($actorType, $actorId) {
-		if(
-		       !is_string($actorType) || !trim($actorType)
-		    || !is_string($actorId)   || !trim($actorId)
-		) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		$this->data['actorType'] = trim($actorType);
-		$this->data['actorId']   = trim($actorId);
-		return $this;
-	}
-
-	/**
-	 * returns the creation date of the comment.
-	 *
-	 * If not explicitly set, it shall default to the time of initialization.
-	 *
-	 * @return \DateTime
-	 * @since 9.0.0
-	 */
-	public function getCreationDateTime() {
-		return $this->data['creationDT'];
-	}
-
-	/**
-	 * sets the creation date of the comment and returns itself
-	 *
-	 * @param \DateTime $timestamp
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setCreationDateTime(\DateTime $timestamp) {
-		$this->data['creationDT'] = $timestamp;
-		return $this;
-	}
-
-	/**
-	 * returns the DateTime of the most recent child, if set, otherwise null
-	 *
-	 * @return \DateTime|null
-	 * @since 9.0.0
-	 */
-	public function getLatestChildDateTime() {
-		return $this->data['latestChildDT'];
-	}
-
-	/**
-	 * sets the date of the most recent child
-	 *
-	 * @param \DateTime $dateTime
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setLatestChildDateTime(\DateTime $dateTime = null) {
-		$this->data['latestChildDT'] = $dateTime;
-		return $this;
-	}
-
-	/**
-	 * returns the object type the comment is attached to
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getObjectType() {
-		return $this->data['objectType'];
-	}
-
-	/**
-	 * returns the object id the comment is attached to
-	 *
-	 * @return string
-	 * @since 9.0.0
-	 */
-	public function getObjectId() {
-		return $this->data['objectId'];
-	}
-
-	/**
-	 * sets (overwrites) the object of the comment
-	 *
-	 * @param string $objectType e.g. 'files'
-	 * @param string $objectId e.g. '16435'
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function setObject($objectType, $objectId) {
-		if(
-		       !is_string($objectType) || !trim($objectType)
-		    || !is_string($objectId)   || !trim($objectId)
-		) {
-			throw new \InvalidArgumentException('String expected.');
-		}
-		$this->data['objectType'] = trim($objectType);
-		$this->data['objectId']   = trim($objectId);
-		return $this;
-	}
-
-	/**
-	 * sets the comment data based on an array with keys as taken from the
-	 * database.
-	 *
-	 * @param [] $data
-	 * @return IComment
-	 */
-	protected function fromArray($data) {
-		foreach(array_keys($data) as $key) {
-			// translate DB keys to internal setter names
-			$setter = 'set' . implode('', array_map('ucfirst', explode('_', $key)));
-			$setter = str_replace('Timestamp', 'DateTime', $setter);
-
-			if(method_exists($this, $setter)) {
-				$this->$setter($data[$key]);
-			}
-		}
-
-		foreach(['actor', 'object'] as $role) {
-			if(isset($data[$role . '_type']) && isset($data[$role . '_id'])) {
-				$setter = 'set' . ucfirst($role);
-				$this->$setter($data[$role . '_type'], $data[$role . '_id']);
-			}
-		}
-
-		return $this;
-	}
-}
diff --git a/lib/private/comments/manager.php b/lib/private/comments/manager.php
deleted file mode 100644
index b986c8c51f9..00000000000
--- a/lib/private/comments/manager.php
+++ /dev/null
@@ -1,753 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\Comments;
-
-use Doctrine\DBAL\Exception\DriverException;
-use OCP\Comments\CommentsEvent;
-use OCP\Comments\IComment;
-use OCP\Comments\ICommentsManager;
-use OCP\Comments\NotFoundException;
-use OCP\DB\QueryBuilder\IQueryBuilder;
-use OCP\IDBConnection;
-use OCP\IConfig;
-use OCP\ILogger;
-use OCP\IUser;
-use Symfony\Component\EventDispatcher\EventDispatcherInterface;
-
-class Manager implements ICommentsManager {
-
-	/** @var  IDBConnection */
-	protected $dbConn;
-
-	/** @var  ILogger */
-	protected $logger;
-
-	/** @var IConfig */
-	protected $config;
-
-	/** @var EventDispatcherInterface */
-	protected $dispatcher;
-
-	/** @var IComment[]  */
-	protected $commentsCache = [];
-
-	/**
-	 * Manager constructor.
-	 *
-	 * @param IDBConnection $dbConn
-	 * @param ILogger $logger
-	 * @param IConfig $config
-	 * @param EventDispatcherInterface $dispatcher
-	 */
-	public function __construct(
-		IDBConnection $dbConn,
-		ILogger $logger,
-		IConfig $config,
-		EventDispatcherInterface $dispatcher
-	) {
-		$this->dbConn = $dbConn;
-		$this->logger = $logger;
-		$this->config = $config;
-		$this->dispatcher = $dispatcher;
-	}
-
-	/**
-	 * converts data base data into PHP native, proper types as defined by
-	 * IComment interface.
-	 *
-	 * @param array $data
-	 * @return array
-	 */
-	protected function normalizeDatabaseData(array $data) {
-		$data['id'] = strval($data['id']);
-		$data['parent_id'] = strval($data['parent_id']);
-		$data['topmost_parent_id'] = strval($data['topmost_parent_id']);
-		$data['creation_timestamp'] = new \DateTime($data['creation_timestamp']);
-		if (!is_null($data['latest_child_timestamp'])) {
-			$data['latest_child_timestamp'] = new \DateTime($data['latest_child_timestamp']);
-		}
-		$data['children_count'] = intval($data['children_count']);
-		return $data;
-	}
-
-	/**
-	 * prepares a comment for an insert or update operation after making sure
-	 * all necessary fields have a value assigned.
-	 *
-	 * @param IComment $comment
-	 * @return IComment returns the same updated IComment instance as provided
-	 *                  by parameter for convenience
-	 * @throws \UnexpectedValueException
-	 */
-	protected function prepareCommentForDatabaseWrite(IComment $comment) {
-		if(    !$comment->getActorType()
-			|| !$comment->getActorId()
-			|| !$comment->getObjectType()
-			|| !$comment->getObjectId()
-			|| !$comment->getVerb()
-		) {
-			throw new \UnexpectedValueException('Actor, Object and Verb information must be provided for saving');
-		}
-
-		if($comment->getId() === '') {
-			$comment->setChildrenCount(0);
-			$comment->setLatestChildDateTime(new \DateTime('0000-00-00 00:00:00', new \DateTimeZone('UTC')));
-			$comment->setLatestChildDateTime(null);
-		}
-
-		if(is_null($comment->getCreationDateTime())) {
-			$comment->setCreationDateTime(new \DateTime());
-		}
-
-		if($comment->getParentId() !== '0') {
-			$comment->setTopmostParentId($this->determineTopmostParentId($comment->getParentId()));
-		} else {
-			$comment->setTopmostParentId('0');
-		}
-
-		$this->cache($comment);
-
-		return $comment;
-	}
-
-	/**
-	 * returns the topmost parent id of a given comment identified by ID
-	 *
-	 * @param string $id
-	 * @return string
-	 * @throws NotFoundException
-	 */
-	protected function determineTopmostParentId($id) {
-		$comment = $this->get($id);
-		if($comment->getParentId() === '0') {
-			return $comment->getId();
-		} else {
-			return $this->determineTopmostParentId($comment->getId());
-		}
-	}
-
-	/**
-	 * updates child information of a comment
-	 *
-	 * @param string	$id
-	 * @param \DateTime	$cDateTime	the date time of the most recent child
-	 * @throws NotFoundException
-	 */
-	protected function updateChildrenInformation($id, \DateTime $cDateTime) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select($qb->createFunction('COUNT(`id`)'))
-				->from('comments')
-				->where($qb->expr()->eq('parent_id', $qb->createParameter('id')))
-				->setParameter('id', $id);
-
-		$resultStatement = $query->execute();
-		$data = $resultStatement->fetch(\PDO::FETCH_NUM);
-		$resultStatement->closeCursor();
-		$children = intval($data[0]);
-
-		$comment = $this->get($id);
-		$comment->setChildrenCount($children);
-		$comment->setLatestChildDateTime($cDateTime);
-		$this->save($comment);
-	}
-
-	/**
-	 * Tests whether actor or object type and id parameters are acceptable.
-	 * Throws exception if not.
-	 *
-	 * @param string $role
-	 * @param string $type
-	 * @param string $id
-	 * @throws \InvalidArgumentException
-	 */
-	protected function checkRoleParameters($role, $type, $id) {
-		if(
-			   !is_string($type) || empty($type)
-			|| !is_string($id) || empty($id)
-		) {
-			throw new \InvalidArgumentException($role . ' parameters must be string and not empty');
-		}
-	}
-
-	/**
-	 * run-time caches a comment
-	 *
-	 * @param IComment $comment
-	 */
-	protected function cache(IComment $comment) {
-		$id = $comment->getId();
-		if(empty($id)) {
-			return;
-		}
-		$this->commentsCache[strval($id)] = $comment;
-	}
-
-	/**
-	 * removes an entry from the comments run time cache
-	 *
-	 * @param mixed $id the comment's id
-	 */
-	protected function uncache($id) {
-		$id = strval($id);
-		if (isset($this->commentsCache[$id])) {
-			unset($this->commentsCache[$id]);
-		}
-	}
-
-	/**
-	 * returns a comment instance
-	 *
-	 * @param string $id the ID of the comment
-	 * @return IComment
-	 * @throws NotFoundException
-	 * @throws \InvalidArgumentException
-	 * @since 9.0.0
-	 */
-	public function get($id) {
-		if(intval($id) === 0) {
-			throw new \InvalidArgumentException('IDs must be translatable to a number in this implementation.');
-		}
-
-		if(isset($this->commentsCache[$id])) {
-			return $this->commentsCache[$id];
-		}
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$resultStatement = $qb->select('*')
-			->from('comments')
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $id, IQueryBuilder::PARAM_INT)
-			->execute();
-
-		$data = $resultStatement->fetch();
-		$resultStatement->closeCursor();
-		if(!$data) {
-			throw new NotFoundException();
-		}
-
-		$comment = new Comment($this->normalizeDatabaseData($data));
-		$this->cache($comment);
-		return $comment;
-	}
-
-	/**
-	 * returns the comment specified by the id and all it's child comments.
-	 * At this point of time, we do only support one level depth.
-	 *
-	 * @param string $id
-	 * @param int $limit max number of entries to return, 0 returns all
-	 * @param int $offset the start entry
-	 * @return array
-	 * @since 9.0.0
-	 *
-	 * The return array looks like this
-	 * [
-	 *   'comment' => IComment, // root comment
-	 *   'replies' =>
-	 *   [
-	 *     0 =>
-	 *     [
-	 *       'comment' => IComment,
-	 *       'replies' => []
-	 *     ]
-	 *     1 =>
-	 *     [
-	 *       'comment' => IComment,
-	 *       'replies'=> []
-	 *     ],
-	 *     …
-	 *   ]
-	 * ]
-	 */
-	public function getTree($id, $limit = 0, $offset = 0) {
-		$tree = [];
-		$tree['comment'] = $this->get($id);
-		$tree['replies'] = [];
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select('*')
-				->from('comments')
-				->where($qb->expr()->eq('topmost_parent_id', $qb->createParameter('id')))
-				->orderBy('creation_timestamp', 'DESC')
-				->setParameter('id', $id);
-
-		if($limit > 0) {
-			$query->setMaxResults($limit);
-		}
-		if($offset > 0) {
-			$query->setFirstResult($offset);
-		}
-
-		$resultStatement = $query->execute();
-		while($data = $resultStatement->fetch()) {
-			$comment = new Comment($this->normalizeDatabaseData($data));
-			$this->cache($comment);
-			$tree['replies'][] = [
-				'comment' => $comment,
-				'replies' => []
-			];
-		}
-		$resultStatement->closeCursor();
-
-		return $tree;
-	}
-
-	/**
-	 * returns comments for a specific object (e.g. a file).
-	 *
-	 * The sort order is always newest to oldest.
-	 *
-	 * @param string $objectType the object type, e.g. 'files'
-	 * @param string $objectId the id of the object
-	 * @param int $limit optional, number of maximum comments to be returned. if
-	 * not specified, all comments are returned.
-	 * @param int $offset optional, starting point
-	 * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
-	 * that may be returned
-	 * @return IComment[]
-	 * @since 9.0.0
-	 */
-	public function getForObject(
-			$objectType,
-			$objectId,
-			$limit = 0,
-			$offset = 0,
-			\DateTime $notOlderThan = null
-	) {
-		$comments = [];
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select('*')
-				->from('comments')
-				->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-				->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-				->orderBy('creation_timestamp', 'DESC')
-				->setParameter('type', $objectType)
-				->setParameter('id', $objectId);
-
-		if($limit > 0) {
-			$query->setMaxResults($limit);
-		}
-		if($offset > 0) {
-			$query->setFirstResult($offset);
-		}
-		if(!is_null($notOlderThan)) {
-			$query
-				->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
-				->setParameter('notOlderThan', $notOlderThan, 'datetime');
-		}
-
-		$resultStatement = $query->execute();
-		while($data = $resultStatement->fetch()) {
-			$comment = new Comment($this->normalizeDatabaseData($data));
-			$this->cache($comment);
-			$comments[] = $comment;
-		}
-		$resultStatement->closeCursor();
-
-		return $comments;
-	}
-
-	/**
-	 * @param $objectType string the object type, e.g. 'files'
-	 * @param $objectId string the id of the object
-	 * @param \DateTime $notOlderThan optional, timestamp of the oldest comments
-	 * that may be returned
-	 * @return Int
-	 * @since 9.0.0
-	 */
-	public function getNumberOfCommentsForObject($objectType, $objectId, \DateTime $notOlderThan = null) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->select($qb->createFunction('COUNT(`id`)'))
-				->from('comments')
-				->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-				->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-				->setParameter('type', $objectType)
-				->setParameter('id', $objectId);
-
-		if(!is_null($notOlderThan)) {
-			$query
-				->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan')))
-				->setParameter('notOlderThan', $notOlderThan, 'datetime');
-		}
-
-		$resultStatement = $query->execute();
-		$data = $resultStatement->fetch(\PDO::FETCH_NUM);
-		$resultStatement->closeCursor();
-		return intval($data[0]);
-	}
-
-	/**
-	 * creates a new comment and returns it. At this point of time, it is not
-	 * saved in the used data storage. Use save() after setting other fields
-	 * of the comment (e.g. message or verb).
-	 *
-	 * @param string $actorType the actor type (e.g. 'users')
-	 * @param string $actorId a user id
-	 * @param string $objectType the object type the comment is attached to
-	 * @param string $objectId the object id the comment is attached to
-	 * @return IComment
-	 * @since 9.0.0
-	 */
-	public function create($actorType, $actorId, $objectType, $objectId) {
-		$comment = new Comment();
-		$comment
-			->setActor($actorType, $actorId)
-			->setObject($objectType, $objectId);
-		return $comment;
-	}
-
-	/**
-	 * permanently deletes the comment specified by the ID
-	 *
-	 * When the comment has child comments, their parent ID will be changed to
-	 * the parent ID of the item that is to be deleted.
-	 *
-	 * @param string $id
-	 * @return bool
-	 * @throws \InvalidArgumentException
-	 * @since 9.0.0
-	 */
-	public function delete($id) {
-		if(!is_string($id)) {
-			throw new \InvalidArgumentException('Parameter must be string');
-		}
-
-		try {
-			$comment = $this->get($id);
-		} catch (\Exception $e) {
-			// Ignore exceptions, we just don't fire a hook then
-			$comment = null;
-		}
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments')
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $id);
-
-		try {
-			$affectedRows = $query->execute();
-			$this->uncache($id);
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-
-		if ($affectedRows > 0 && $comment instanceof IComment) {
-			$this->dispatcher->dispatch(CommentsEvent::EVENT_DELETE, new CommentsEvent(
-				CommentsEvent::EVENT_DELETE,
-				$comment
-			));
-		}
-
-		return ($affectedRows > 0);
-	}
-
-	/**
-	 * saves the comment permanently
-	 *
-	 * if the supplied comment has an empty ID, a new entry comment will be
-	 * saved and the instance updated with the new ID.
-	 *
-	 * Otherwise, an existing comment will be updated.
-	 *
-	 * Throws NotFoundException when a comment that is to be updated does not
-	 * exist anymore at this point of time.
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 * @throws NotFoundException
-	 * @since 9.0.0
-	 */
-	public function save(IComment $comment) {
-		if($this->prepareCommentForDatabaseWrite($comment)->getId() === '') {
-			$result = $this->insert($comment);
-		} else {
-			$result = $this->update($comment);
-		}
-
-		if($result && !!$comment->getParentId()) {
-			$this->updateChildrenInformation(
-					$comment->getParentId(),
-					$comment->getCreationDateTime()
-			);
-			$this->cache($comment);
-		}
-
-		return $result;
-	}
-
-	/**
-	 * inserts the provided comment in the database
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 */
-	protected function insert(IComment &$comment) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->insert('comments')
-			->values([
-				'parent_id'					=> $qb->createNamedParameter($comment->getParentId()),
-				'topmost_parent_id' 		=> $qb->createNamedParameter($comment->getTopmostParentId()),
-				'children_count' 			=> $qb->createNamedParameter($comment->getChildrenCount()),
-				'actor_type' 				=> $qb->createNamedParameter($comment->getActorType()),
-				'actor_id' 					=> $qb->createNamedParameter($comment->getActorId()),
-				'message' 					=> $qb->createNamedParameter($comment->getMessage()),
-				'verb' 						=> $qb->createNamedParameter($comment->getVerb()),
-				'creation_timestamp' 		=> $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'),
-				'latest_child_timestamp'	=> $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'),
-				'object_type' 				=> $qb->createNamedParameter($comment->getObjectType()),
-				'object_id' 				=> $qb->createNamedParameter($comment->getObjectId()),
-			])
-			->execute();
-
-		if ($affectedRows > 0) {
-			$comment->setId(strval($qb->getLastInsertId()));
-		}
-
-		$this->dispatcher->dispatch(CommentsEvent::EVENT_ADD, new CommentsEvent(
-			CommentsEvent::EVENT_ADD,
-			$comment
-		));
-
-		return $affectedRows > 0;
-	}
-
-	/**
-	 * updates a Comment data row
-	 *
-	 * @param IComment $comment
-	 * @return bool
-	 * @throws NotFoundException
-	 */
-	protected function update(IComment $comment) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->update('comments')
-				->set('parent_id',				$qb->createNamedParameter($comment->getParentId()))
-				->set('topmost_parent_id', 		$qb->createNamedParameter($comment->getTopmostParentId()))
-				->set('children_count',			$qb->createNamedParameter($comment->getChildrenCount()))
-				->set('actor_type', 			$qb->createNamedParameter($comment->getActorType()))
-				->set('actor_id', 				$qb->createNamedParameter($comment->getActorId()))
-				->set('message',				$qb->createNamedParameter($comment->getMessage()))
-				->set('verb',					$qb->createNamedParameter($comment->getVerb()))
-				->set('creation_timestamp',		$qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'))
-				->set('latest_child_timestamp',	$qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'))
-				->set('object_type',			$qb->createNamedParameter($comment->getObjectType()))
-				->set('object_id',				$qb->createNamedParameter($comment->getObjectId()))
-			->where($qb->expr()->eq('id', $qb->createParameter('id')))
-			->setParameter('id', $comment->getId())
-			->execute();
-
-		if($affectedRows === 0) {
-			throw new NotFoundException('Comment to update does ceased to exist');
-		}
-
-		$this->dispatcher->dispatch(CommentsEvent::EVENT_UPDATE, new CommentsEvent(
-			CommentsEvent::EVENT_UPDATE,
-			$comment
-		));
-
-		return $affectedRows > 0;
-	}
-
-	/**
-	 * removes references to specific actor (e.g. on user delete) of a comment.
-	 * The comment itself must not get lost/deleted.
-	 *
-	 * @param string $actorType the actor type (e.g. 'users')
-	 * @param string $actorId a user id
-	 * @return boolean
-	 * @since 9.0.0
-	 */
-	public function deleteReferencesOfActor($actorType, $actorId) {
-		$this->checkRoleParameters('Actor', $actorType, $actorId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->update('comments')
-			->set('actor_type',	$qb->createNamedParameter(ICommentsManager::DELETED_USER))
-			->set('actor_id',	$qb->createNamedParameter(ICommentsManager::DELETED_USER))
-			->where($qb->expr()->eq('actor_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('actor_id', $qb->createParameter('id')))
-			->setParameter('type', $actorType)
-			->setParameter('id', $actorId)
-			->execute();
-
-		$this->commentsCache = [];
-
-		return is_int($affectedRows);
-	}
-
-	/**
-	 * deletes all comments made of a specific object (e.g. on file delete)
-	 *
-	 * @param string $objectType the object type (e.g. 'files')
-	 * @param string $objectId e.g. the file id
-	 * @return boolean
-	 * @since 9.0.0
-	 */
-	public function deleteCommentsAtObject($objectType, $objectId) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$affectedRows = $qb
-			->delete('comments')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id')))
-			->setParameter('type', $objectType)
-			->setParameter('id', $objectId)
-			->execute();
-
-		$this->commentsCache = [];
-
-		return is_int($affectedRows);
-	}
-
-	/**
-	 * deletes the read markers for the specified user
-	 *
-	 * @param \OCP\IUser $user
-	 * @return bool
-	 * @since 9.0.0
-	 */
-	public function deleteReadMarksFromUser(IUser $user) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments_read_markers')
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->setParameter('user_id', $user->getUID());
-
-		try {
-			$affectedRows = $query->execute();
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-		return ($affectedRows > 0);
-	}
-
-	/**
-	 * sets the read marker for a given file to the specified date for the
-	 * provided user
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @param \DateTime $dateTime
-	 * @param IUser $user
-	 * @since 9.0.0
-	 */
-	public function setReadMark($objectType, $objectId, \DateTime $dateTime, IUser $user) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$values = [
-			'user_id'         => $qb->createNamedParameter($user->getUID()),
-			'marker_datetime' => $qb->createNamedParameter($dateTime, 'datetime'),
-			'object_type'     => $qb->createNamedParameter($objectType),
-			'object_id'       => $qb->createNamedParameter($objectId),
-		];
-
-		// Strategy: try to update, if this does not return affected rows, do an insert.
-		$affectedRows = $qb
-			->update('comments_read_markers')
-			->set('user_id',         $values['user_id'])
-			->set('marker_datetime', $values['marker_datetime'])
-			->set('object_type',     $values['object_type'])
-			->set('object_id',       $values['object_id'])
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
-			->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
-			->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
-			->execute();
-
-		if ($affectedRows > 0) {
-			return;
-		}
-
-		$qb->insert('comments_read_markers')
-			->values($values)
-			->execute();
-	}
-
-	/**
-	 * returns the read marker for a given file to the specified date for the
-	 * provided user. It returns null, when the marker is not present, i.e.
-	 * no comments were marked as read.
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @param IUser $user
-	 * @return \DateTime|null
-	 * @since 9.0.0
-	 */
-	public function getReadMark($objectType, $objectId, IUser $user) {
-		$qb = $this->dbConn->getQueryBuilder();
-		$resultStatement = $qb->select('marker_datetime')
-			->from('comments_read_markers')
-			->where($qb->expr()->eq('user_id', $qb->createParameter('user_id')))
-			->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR)
-			->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR)
-			->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR)
-			->execute();
-
-		$data = $resultStatement->fetch();
-		$resultStatement->closeCursor();
-		if(!$data || is_null($data['marker_datetime'])) {
-			return null;
-		}
-
-		return new \DateTime($data['marker_datetime']);
-	}
-
-	/**
-	 * deletes the read markers on the specified object
-	 *
-	 * @param string $objectType
-	 * @param string $objectId
-	 * @return bool
-	 * @since 9.0.0
-	 */
-	public function deleteReadMarksOnObject($objectType, $objectId) {
-		$this->checkRoleParameters('Object', $objectType, $objectId);
-
-		$qb = $this->dbConn->getQueryBuilder();
-		$query = $qb->delete('comments_read_markers')
-			->where($qb->expr()->eq('object_type', $qb->createParameter('object_type')))
-			->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id')))
-			->setParameter('object_type', $objectType)
-			->setParameter('object_id', $objectId);
-
-		try {
-			$affectedRows = $query->execute();
-		} catch (DriverException $e) {
-			$this->logger->logException($e, ['app' => 'core_comments']);
-			return false;
-		}
-		return ($affectedRows > 0);
-	}
-}
diff --git a/lib/private/comments/managerfactory.php b/lib/private/comments/managerfactory.php
deleted file mode 100644
index 044463d1e96..00000000000
--- a/lib/private/comments/managerfactory.php
+++ /dev/null
@@ -1,62 +0,0 @@
-<?php
-/**
- * @author Arthur Schiwon <blizzz@owncloud.com>
- * @author Joas Schilling <nickvergessen@owncloud.com>
- * @author Thomas Müller <thomas.mueller@tmit.eu>
- * @author Vincent Petry <pvince81@owncloud.com>
- *
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * 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, version 3,
- * along with this program.  If not, see <http://www.gnu.org/licenses/>
- *
- */
-namespace OC\Comments;
-
-use OCP\Comments\ICommentsManager;
-use OCP\Comments\ICommentsManagerFactory;
-use OCP\IServerContainer;
-
-class ManagerFactory implements ICommentsManagerFactory {
-
-	/**
-	 * Server container
-	 *
-	 * @var IServerContainer
-	 */
-	private $serverContainer;
-
-	/**
-	 * Constructor for the comments manager factory
-	 *
-	 * @param IServerContainer $serverContainer server container
-	 */
-	public function __construct(IServerContainer $serverContainer) {
-		$this->serverContainer = $serverContainer;
-	}
-
-	/**
-	 * creates and returns an instance of the ICommentsManager
-	 *
-	 * @return ICommentsManager
-	 * @since 9.0.0
-	 */
-	public function getManager() {
-		return new Manager(
-			$this->serverContainer->getDatabaseConnection(),
-			$this->serverContainer->getLogger(),
-			$this->serverContainer->getConfig(),
-			$this->serverContainer->getEventDispatcher()
-		);
-	}
-}