Add change database helper

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/Controller/BoardApiController.php

@@ -24,7 +24,6 @@
 
 namespace OCA\Deck\Controller;
 
-use OCA\Deck\Db\ChangeHelper;
 use OCP\AppFramework\ApiController;
 use OCP\AppFramework\Http;
 use OCP\AppFramework\Http\DataResponse;
@@ -78,7 +77,7 @@ class BoardApiController extends ApiController {
 	 *
 	 * Return the board specified by $this->request->getParam('boardId').
 	 */
-	public function get() {		
+	public function get() {
 		$board = $this->service->find($this->request->getParam('boardId'));
 		return new DataResponse($board, HTTP::STATUS_OK);
 	}

lib/Controller/CardApiController.php

@@ -23,7 +23,6 @@
 
  namespace OCA\Deck\Controller;
 
- use OCA\Deck\Db\ChangeHelper;
  use OCP\AppFramework\ApiController;
  use OCP\AppFramework\Http;
  use OCP\AppFramework\Http\DataResponse;
@@ -71,7 +70,7 @@ class CardApiController extends ApiController {
 	 * @params $title
 	 * @params $type
 	 * @params $order
-	 * 
+	 *
 	 * Get a specific card.
 	 */
 	public function create($title, $type = 'plain', $order = 999) {
@@ -83,20 +82,20 @@ class CardApiController extends ApiController {
 	 * @NoAdminRequired
 	 * @CORS
 	 * @NoCSRFRequired
-	 *	 
-	 * 
+	 *
+	 *
 	 * Update a card
 	 */
 	public function update($title, $type, $order = 0, $description = '', $owner, $duedate = null) {
 		$card = $this->cardService->update($this->request->getParam('cardId'), $title, $this->request->getParam('stackId'), $type, $order, $description, $owner, $duedate, 0);
 		return new DataResponse($card, HTTP::STATUS_OK);
-	}		
+	}
 
 	/**
 	 * @NoAdminRequired
 	 * @CORS
-	 * @NoCSRFRequired	 	 
-	 * 
+	 * @NoCSRFRequired
+	 *
 	 * Delete a specific card.
 	 */
 	public function delete() {
@@ -107,8 +106,8 @@ class CardApiController extends ApiController {
 	/**
 	 * @NoAdminRequired
 	 * @CORS
-	 * @NoCSRFRequired	 	 
-	 * 
+	 * @NoCSRFRequired
+	 *
 	 * Assign a label to a card.
 	 */
 	public function assignLabel($labelId) {

lib/Db/ChangeHelper.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\Deck\Db;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\ICache;
+use OCP\ICacheFactory;
+use OCP\IDBConnection;
+use OCP\IRequest;
+use OCP\IUserManager;
+use OCP\IGroupManager;
+
+class ChangeHelper {
+
+	const TYPE_BOARD = 'boardChanged';
+	const TYPE_CARD = 'cardChanged';
+
+	private $db;
+
+	public function __construct(
+		IDBConnection $db,
+		ICacheFactory $cacheFactory,
+		IRequest $request
+	) {
+		$this->db = $db;
+		$this->cache = $cacheFactory->createDistributed('deck_changes');
+		$this->request = $request;
+	}
+
+	public function boardChanged($boardId) {
+		$time = time();
+		$etag = md5($time . microtime());
+		$this->cache->set(self::TYPE_BOARD . '-' . $boardId, $etag);
+		$sql  = 'UPDATE `*PREFIX*deck_boards` SET `last_modified` = ? WHERE `id` = ?';
+		$this->db->executeUpdate($sql, [$time, $boardId]);
+	}
+
+	public function cardChanged($cardId, $updateCard = true) {
+		$time = time();
+		$etag = md5($time . microtime());
+		$this->cache->set(self::TYPE_CARD . '-' .$cardId, $etag);
+		if ($updateCard) {
+			$sql = 'UPDATE `*PREFIX*deck_cards` SET `last_modified` = ? WHERE `id` = ?';
+			$this->db->executeUpdate($sql, [time(), $cardId]);
+		}
+
+		$sql = 'SELECT s.board_id as id FROM oc_deck_stacks as s inner join oc_deck_cards as c ON c.stack_id = s.id WHERE c.id = ?';
+		$result = $this->db->executeQuery($sql, [$cardId]);
+		if ($row = $result->fetch()) {
+			$this->boardChanged($row['id']);
+		}
+	}
+
+	public function checkEtag($type, $id) {
+		$etag = $this->getEtag($type, $id);
+		if ($this->request->getHeader('If-None-Match') === $etag) {
+			return true;
+		}
+		return false;
+	}
+
+	public function getEtag($type, $id) {
+		$entry = $this->cache->get($type . '-' .$id);
+		if ($entry === 'null') {
+			return '';
+		}
+		return $entry;
+	}
+
+}

lib/Db/Stack.php

@@ -28,9 +28,9 @@ class Stack extends RelationalEntity {
 	protected $title;
 	protected $boardId;
 	protected $deletedAt = 0;
+	protected $lastModified = 0;
 	protected $cards = array();
 	protected $order;
-	protected $lastModified = 0;
 
 	public function __construct() {
 		$this->addType('id', 'integer');

lib/Service/AttachmentService.php

@@ -57,6 +57,8 @@ class AttachmentService {
 	private $l10n;
 	/** @var ActivityManager */
 	private $activityManager;
+	/** @var ChangeHelper */
+	private $changeHelper;
 
 	/**
 	 * AttachmentService constructor.
@@ -219,12 +221,11 @@ class AttachmentService {
 	 * @param $cardId
 	 * @param $attachmentId
 	 * @return Response
-	 * @throws \OCA\Deck\NotFoundException
+	 * @throws BadRequestException
 	 * @throws NoPermissionException
 	 * @throws NotFoundException
 	 * @throws \OCP\AppFramework\Db\DoesNotExistException
-	 * @throws \OCP\AppFramework\Db\
-	 * @throws BadRequestException
+	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
 	 */
 	public function display($cardId, $attachmentId) {
 

lib/Service/BoardService.php

@@ -28,6 +28,7 @@ use OCA\Deck\Activity\ChangeSet;
 use OCA\Deck\Db\Acl;
 use OCA\Deck\Db\AclMapper;
 use OCA\Deck\Db\AssignedUsersMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\IPermissionMapper;
 use OCA\Deck\Db\Label;
 use OCA\Deck\Notification\NotificationHelper;
@@ -54,6 +55,7 @@ class BoardService {
 	private $groupManager;
 	private $userId;
 	private $activityManager;
+	private $changeHelper;
 
 	public function __construct(
 		BoardMapper $boardMapper,
@@ -66,6 +68,7 @@ class BoardService {
 		IUserManager $userManager,
 		IGroupManager $groupManager,
 		ActivityManager $activityManager,
+		ChangeHelper $changeHelper,
 		$userId
 	) {
 		$this->boardMapper = $boardMapper;
@@ -78,6 +81,7 @@ class BoardService {
 		$this->userManager = $userManager;
 		$this->groupManager = $groupManager;
 		$this->activityManager = $activityManager;
+		$this->changeHelper = $changeHelper;
 		$this->userId = $userId;
 	}
 
@@ -276,6 +280,7 @@ class BoardService {
 			'PERMISSION_SHARE' => $permissions[Acl::PERMISSION_SHARE]
 		]);
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $new_board, ActivityManager::SUBJECT_BOARD_CREATE);
+		$this->changeHelper->boardChanged($new_board->getId());
 		return $new_board;
 
 	}
@@ -299,6 +304,7 @@ class BoardService {
 		$board->setDeletedAt(time());
 		$board = $this->boardMapper->update($board);
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $board, ActivityManager::SUBJECT_BOARD_DELETE);
+		$this->changeHelper->boardChanged($board->getId());
 		return $board;
 	}
 
@@ -320,6 +326,7 @@ class BoardService {
 		$board->setDeletedAt(0);
 		$board = $this->boardMapper->update($board);
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $board, ActivityManager::SUBJECT_BOARD_RESTORE);
+		$this->changeHelper->boardChanged($board->getId());
 		return $board;
 	}
 
@@ -380,6 +387,7 @@ class BoardService {
 		$this->boardMapper->update($board); // operate on clone so we can check for updated fields
 		$this->boardMapper->mapOwner($board);
 		$this->activityManager->triggerUpdateEvents(ActivityManager::DECK_OBJECT_BOARD, $changes, ActivityManager::SUBJECT_BOARD_UPDATE);
+		$this->changeHelper->boardChanged($board->getId());
 		return $board;
 	}
 
@@ -392,8 +400,8 @@ class BoardService {
 	 * @param $share
 	 * @param $manage
 	 * @return \OCP\AppFramework\Db\Entity
-	 * @throws \OCA\Deck\
 	 * @throws BadRequestException
+	 * @throws \OCA\Deck\NoPermissionException
 	 */
 	public function addAcl($boardId, $type, $participant, $edit, $share, $manage) {
 
@@ -436,6 +444,7 @@ class BoardService {
 		$newAcl = $this->aclMapper->insert($acl);
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $newAcl, ActivityManager::SUBJECT_BOARD_SHARE);
 		$this->boardMapper->mapAcl($newAcl);
+		$this->changeHelper->boardChanged($boardId);
 		return $newAcl;
 	}
 
@@ -475,7 +484,9 @@ class BoardService {
 		$acl->setPermissionShare($share);
 		$acl->setPermissionManage($manage);
 		$this->boardMapper->mapAcl($acl);
-		return $this->aclMapper->update($acl);
+		$board = $this->aclMapper->update($acl);
+		$this->changeHelper->boardChanged($acl->getBoardId());
+		return $board;
 	}
 
 	/**
@@ -503,6 +514,7 @@ class BoardService {
 			}
 		}
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $acl, ActivityManager::SUBJECT_BOARD_UNSHARE);
+		$this->changeHelper->boardChanged($acl->getBoardId());
 		return $this->aclMapper->delete($acl);
 	}
 

lib/Service/CardService.php

@@ -56,6 +56,7 @@ class CardService {
 	private $activityManager;
 	private $commentsManager;
 	private $changeHelper;
+	private $userManager;
 
 	public function __construct(
 		CardMapper $cardMapper,
@@ -485,9 +486,10 @@ class CardService {
 	 * @param $cardId
 	 * @param $userId
 	 * @return bool|null|\OCP\AppFramework\Db\Entity
+	 * @throws BadRequestException
+	 * @throws \OCA\Deck\NoPermissionException
 	 * @throws \OCP\AppFramework\Db\DoesNotExistException
 	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
-	 * @throws BadRequestException
 	 */
 	public function assignUser($cardId, $userId) {
 
@@ -526,10 +528,11 @@ class CardService {
 	 * @param $cardId
 	 * @param $userId
 	 * @return \OCP\AppFramework\Db\Entity
+	 * @throws BadRequestException
 	 * @throws NotFoundException
+	 * @throws \OCA\Deck\NoPermissionException
 	 * @throws \OCP\AppFramework\Db\DoesNotExistException
 	 * @throws \OCP\AppFramework\Db\MultipleObjectsReturnedException
-	 * @throws BadRequestException
 	 */
 	public function unassignUser($cardId, $userId) {
 		$this->permissionService->checkPermission($this->cardMapper, $cardId, Acl::PERMISSION_EDIT);

lib/Service/LabelService.php

@@ -5,24 +5,25 @@
  * @author Julius Härtl <jus@bitgrid.net>
  *
  * @license GNU AGPL version 3 or any later version
- *  
+ *
  *  This program is free software: you can redistribute it and/or modify
  *  it under the terms of the GNU Affero General Public License as
  *  published by the Free Software Foundation, either version 3 of the
  *  License, or (at your option) any later version.
- *  
+ *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU Affero General Public License for more details.
- *  
+ *
  *  You should have received a copy of the GNU Affero General Public License
  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *  
+ *
  */
 
 namespace OCA\Deck\Service;
 
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\Label;
 use OCA\Deck\Db\Acl;
 use OCA\Deck\Db\LabelMapper;
@@ -38,11 +39,14 @@ class LabelService {
 	private $permissionService;
 	/** @var BoardService */
 	private $boardService;
+	/** @var ChangeHelper */
+	private $changeHelper;
 
-	public function __construct(LabelMapper $labelMapper, PermissionService $permissionService, BoardService $boardService) {
+	public function __construct(LabelMapper $labelMapper, PermissionService $permissionService, BoardService $boardService, ChangeHelper $changeHelper) {
 		$this->labelMapper = $labelMapper;
 		$this->permissionService = $permissionService;
 		$this->boardService = $boardService;
+		$this->changeHelper = $changeHelper;
 	}
 
 	/**
@@ -94,6 +98,7 @@ class LabelService {
 		$label->setTitle($title);
 		$label->setColor($color);
 		$label->setBoardId($boardId);
+		$this->changeHelper->boardChanged($boardId);
 		return $this->labelMapper->insert($label);
 	}
 
@@ -116,7 +121,9 @@ class LabelService {
 		if ($this->boardService->isArchived($this->labelMapper, $id)) {
 			throw new StatusException('Operation not allowed. This board is archived.');
 		}
-		return $this->labelMapper->delete($this->find($id));
+		$label = $this->labelMapper->delete($this->find($id));
+		$this->changeHelper->boardChanged($label->getBoardId());
+		return $label;
 	}
 
 	/**
@@ -151,7 +158,8 @@ class LabelService {
 		$label = $this->find($id);
 		$label->setTitle($title);
 		$label->setColor($color);
+		$this->changeHelper->boardChanged($label->getBoardId());
 		return $this->labelMapper->update($label);
 	}
 
-}
+}

lib/Service/StackService.php

@@ -28,6 +28,7 @@ use OCA\Deck\Activity\ChangeSet;
 use OCA\Deck\Db\Acl;
 use OCA\Deck\Db\CardMapper;
 use OCA\Deck\Db\BoardMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\LabelMapper;
 use OCA\Deck\Db\AssignedUsersMapper;
 use OCA\Deck\Db\Stack;
@@ -49,6 +50,7 @@ class StackService {
 	private $assignedUsersMapper;
 	private $attachmentService;
 	private $activityManager;
+	private $changeHelper;
 
 	public function __construct(
 		StackMapper $stackMapper,
@@ -60,7 +62,8 @@ class StackService {
 		CardService $cardService,
 		AssignedUsersMapper $assignedUsersMapper,
 		AttachmentService $attachmentService,
-		ActivityManager $activityManager
+		ActivityManager $activityManager,
+		ChangeHelper $changeHelper
 	) {
 		$this->stackMapper = $stackMapper;
 		$this->boardMapper = $boardMapper;
@@ -72,6 +75,7 @@ class StackService {
 		$this->assignedUsersMapper = $assignedUsersMapper;
 		$this->attachmentService = $attachmentService;
 		$this->activityManager = $activityManager;
+		$this->changeHelper = $changeHelper;
 	}
 
 	private function enrichStackWithCards($stack, $since = -1) {
@@ -203,6 +207,7 @@ class StackService {
 		$stack->setOrder($order);
 		$stack = $this->stackMapper->insert($stack);
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $stack, ActivityManager::SUBJECT_STACK_CREATE);
+		$this->changeHelper->boardChanged($boardId);
 		return $stack;
 	}
 
@@ -227,7 +232,7 @@ class StackService {
 		$stack = $this->stackMapper->update($stack);
 
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $stack, ActivityManager::SUBJECT_STACK_DELETE);
-
+		$this->changeHelper->boardChanged($stack->getBoardId());
 		$this->enrichStackWithCards($stack);
 		return $stack;
 	}
@@ -276,6 +281,7 @@ class StackService {
 		$changes->setAfter($stack);
 		$stack = $this->stackMapper->update($stack);
 		$this->activityManager->triggerUpdateEvents(ActivityManager::DECK_OBJECT_BOARD, $changes, ActivityManager::SUBJECT_STACK_UPDATE);
+		$this->changeHelper->boardChanged($stack->getBoardId());
 		return $stack;
 	}
 
@@ -318,7 +324,7 @@ class StackService {
 			$this->stackMapper->update($stack);
 			$result[$stack->getOrder()] = $stack;
 		}
-
+		$this->changeHelper->boardChanged($stackToSort->getBoardId());
 		return $result;
 	}
 }

tests/unit/Db/BoardTest.php

@@ -26,6 +26,7 @@ class BoardTest extends TestCase {
 			'labels' => array(),
 			'permissions' => [],
 			'deletedAt' => 0,
+			'lastModified' => 0,
 			'acl' => array(),
 			'archived' => false,
 			'users' => ['user1', 'user2'],
@@ -43,6 +44,7 @@ class BoardTest extends TestCase {
 			'labels' => array("foo", "bar"),
 			'permissions' => [],
 			'deletedAt' => 0,
+			'lastModified' => 0,
 			'acl' => array(),
 			'archived' => false,
 			'users' => [],
@@ -67,10 +69,11 @@ class BoardTest extends TestCase {
 			'labels' => array(),
 			'permissions' => [],
 			'deletedAt' => 0,
+			'lastModified' => 0,
 			'acl' => array(),
 			'archived' => false,
 			'shared' => 1,
 			'users' => [],
 		], $board->jsonSerialize());
 	}
-}
+}

tests/unit/Db/StackTest.php

@@ -39,7 +39,8 @@ class StackTest extends \Test\TestCase {
 			'title' => "My Stack",
 			'order' => 1,
 			'boardId' => 1,
-			'deletedAt' => 0
+			'deletedAt' => 0,
+			'lastModified' => 0,
 		], $board->jsonSerialize());
 	}
 	public function testJsonSerializeWithCards() {
@@ -52,7 +53,8 @@ class StackTest extends \Test\TestCase {
 			'order' => 1,
 			'boardId' => 1,
 			'cards' => array("foo", "bar"),
-			'deletedAt' => 0
+			'deletedAt' => 0,
+			'lastModified' => 0,
 		], $board->jsonSerialize());
 	}
 }

tests/unit/Service/AttachmentServiceTest.php

@@ -30,6 +30,7 @@ use OCA\Deck\Db\Acl;
 use OCA\Deck\Db\Attachment;
 use OCA\Deck\Db\AttachmentMapper;
 use OCA\Deck\Db\CardMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\InvalidAttachmentType;
 use OCP\AppFramework\Http\Response;
 use OCP\AppFramework\IAppContainer;
@@ -73,6 +74,8 @@ class AttachmentServiceTest extends TestCase {
 	private $cache;
 	/** @var IL10N */
 	private $l10n;
+	/** @var ChangeHelper */
+	private $changeHelper;
 
 	/**
 	 * @throws \OCP\AppFramework\QueryException
@@ -99,8 +102,9 @@ class AttachmentServiceTest extends TestCase {
 			->willReturn($this->appContainer);
 
 		$this->l10n = $this->createMock(IL10N::class);
+		$this->changeHelper = $this->createMock(ChangeHelper::class);
 
-        $this->attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->permissionService, $this->application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
+        $this->attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->changeHelper, $this->permissionService, $this->application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
     }
 
     public function testRegisterAttachmentService() {
@@ -112,7 +116,7 @@ class AttachmentServiceTest extends TestCase {
 		$application->expects($this->any())
 			->method('getContainer')
 			->willReturn($appContainer);
-		$attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->permissionService, $application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
+		$attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->changeHelper, $this->permissionService, $application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
 		$attachmentService->registerAttachmentService('custom', MyAttachmentService::class);
 		$this->assertEquals($fileServiceMock, $attachmentService->getService('deck_file'));
 		$this->assertEquals(MyAttachmentService::class, get_class($attachmentService->getService('custom')));
@@ -130,7 +134,7 @@ class AttachmentServiceTest extends TestCase {
 		$application->expects($this->any())
 			->method('getContainer')
 			->willReturn($appContainer);
-		$attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->permissionService, $application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
+		$attachmentService = new AttachmentService($this->attachmentMapper, $this->cardMapper, $this->changeHelper, $this->permissionService, $application, $this->cacheFactory, $this->userId, $this->l10n, $this->activityManager);
 		$attachmentService->registerAttachmentService('custom', MyAttachmentService::class);
 		$attachmentService->getService('deck_file_invalid');
 	}

tests/unit/Service/BoardServiceTest.php

@@ -31,6 +31,7 @@ use OCA\Deck\Db\AssignedUsers;
 use OCA\Deck\Db\AssignedUsersMapper;
 use OCA\Deck\Db\Board;
 use OCA\Deck\Db\BoardMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\LabelMapper;
 use OCA\Deck\Notification\NotificationHelper;
 use OCP\IUser;
@@ -62,7 +63,8 @@ class BoardServiceTest extends TestCase {
 	private $groupManager;
 	/** @var ActivityManager */
 	private $activityManager;
-
+	/** @var ChangeHelper */
+	private $changeHelper;
 	private $userId = 'admin';
 
 	public function setUp() {
@@ -77,6 +79,7 @@ class BoardServiceTest extends TestCase {
 		$this->userManager = $this->createMock(IUserManager::class);
 		$this->groupManager = $this->createMock(IGroupManager::class);
 		$this->activityManager = $this->createMock(ActivityManager::class);
+		$this->changeHelper = $this->createMock(ChangeHelper::class);
 
 		$this->service = new BoardService(
 			$this->boardMapper,
@@ -89,6 +92,7 @@ class BoardServiceTest extends TestCase {
 			$this->userManager,
 			$this->groupManager,
 			$this->activityManager,
+			$this->changeHelper,
 			$this->userId
 		);
 

tests/unit/Service/CardServiceTest.php

@@ -29,6 +29,7 @@ use OCA\Deck\Db\AssignedUsers;
 use OCA\Deck\Db\AssignedUsersMapper;
 use OCA\Deck\Db\Card;
 use OCA\Deck\Db\CardMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\StackMapper;
 use OCA\Deck\Db\BoardMapper;
 use OCA\Deck\Db\LabelMapper;
@@ -69,6 +70,8 @@ class CardServiceTest extends TestCase {
 	private $commentsManager;
 	/** @var ICommentsManager|MockObject */
 	private $userManager;
+	/** @var ChangeHelper|MockObject */
+	private $changeHelper;
 
 	public function setUp() {
 		    parent::setUp();
@@ -84,6 +87,7 @@ class CardServiceTest extends TestCase {
 		$this->activityManager = $this->createMock(ActivityManager::class);
 		$this->commentsManager = $this->createMock(ICommentsManager::class);
 		$this->userManager = $this->createMock(IUserManager::class);
+		$this->changeHelper = $this->createMock(ChangeHelper::class);
 		$this->cardService = new CardService(
 			$this->cardMapper,
 			$this->stackMapper,
@@ -97,6 +101,7 @@ class CardServiceTest extends TestCase {
 			$this->activityManager,
 			$this->commentsManager,
 			$this->userManager,
+			$this->changeHelper,
 			'user1'
         );
     }

tests/unit/Service/LabelServiceTest.php

@@ -24,6 +24,7 @@
 namespace OCA\Deck\Service;
 
 
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\Label;
 use OCA\Deck\Db\LabelMapper;
 use Test\TestCase;
@@ -38,6 +39,8 @@ class LabelServiceTest extends TestCase {
     private $labelService;
 	/** @var BoardService|\PHPUnit\Framework\MockObject\MockObject */
 	private $boardService;
+	/** @var ChangeHelper|\PHPUnit\Framework\MockObject\MockObject */
+	private $changeHelper;
 
     public function setUp() {
 		parent::setUp();
@@ -46,10 +49,12 @@ class LabelServiceTest extends TestCase {
         $this->permissionService = $this->getMockBuilder(PermissionService::class)
             ->disableOriginalConstructor()->getMock();
         $this->boardService = $this->createMock(BoardService::class);
+        $this->changeHelper = $this->createMock(ChangeHelper::class);
         $this->labelService = new LabelService(
             $this->labelMapper,
             $this->permissionService,
-			$this->boardService
+			$this->boardService,
+			$this->changeHelper
         );
     }
 
@@ -95,13 +100,15 @@ class LabelServiceTest extends TestCase {
     }
 
     public function testDelete() {
+		$label = new Label();
+		$label->setId(1);
         $this->labelMapper->expects($this->once())
             ->method('find')
-            ->willReturn(new Label());
+            ->willReturn($label);
         $this->labelMapper->expects($this->once())
             ->method('delete')
-            ->willReturn(1);
-        $this->assertEquals(1, $this->labelService->delete(123));
+            ->willReturn($label);
+        $this->assertEquals($label, $this->labelService->delete(1));
     }
 
-}
+}

tests/unit/Service/StackServiceTest.php

@@ -30,6 +30,7 @@ use OCA\Deck\Db\AssignedUsersMapper;
 use OCA\Deck\Db\Card;
 use OCA\Deck\Db\CardMapper;
 use OCA\Deck\Db\BoardMapper;
+use OCA\Deck\Db\ChangeHelper;
 use OCA\Deck\Db\Label;
 use OCA\Deck\Db\LabelMapper;
 use OCA\Deck\Db\Stack;
@@ -66,6 +67,8 @@ class StackServiceTest extends TestCase {
 	private $cardService;
 	/** @var ActivityManager|\PHPUnit\Framework\MockObject\MockObject */
 	private $activityManager;
+	/** @var ChangeHelper|\PHPUnit\Framework\MockObject\MockObject */
+	private $changeHelper;
 
 	public function setUp() {
 		parent::setUp();
@@ -79,6 +82,7 @@ class StackServiceTest extends TestCase {
 		$this->attachmentService = $this->createMock(AttachmentService::class);
 		$this->labelMapper = $this->createMock(LabelMapper::class);
 		$this->activityManager = $this->createMock(ActivityManager::class);
+		$this->changeHelper = $this->createMock(ChangeHelper::class);
 
 		$this->stackService = new StackService(
 			$this->stackMapper,
@@ -90,7 +94,8 @@ class StackServiceTest extends TestCase {
 			$this->cardService,
 			$this->assignedUsersMapper,
 			$this->attachmentService,
-			$this->activityManager
+			$this->activityManager,
+			$this->changeHelper
 		);
 	}
 
@@ -185,6 +190,7 @@ class StackServiceTest extends TestCase {
 		$stackToBeDeleted->setId(1);
 		$this->stackMapper->expects($this->once())->method('find')->willReturn($stackToBeDeleted);
 		$this->stackMapper->expects($this->once())->method('update')->willReturn($stackToBeDeleted);
+		$this->cardMapper->expects($this->once())->method('findAll')->willReturn([]);
 		$this->stackService->delete(123);
 		$this->assertTrue($stackToBeDeleted->getDeletedAt() <= time(), "deletedAt is in the past");
 		$this->assertTrue($stackToBeDeleted->getDeletedAt() > 0, "deletedAt is set");