| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * @copyright Copyright (C) eZ Systems AS. All rights reserved. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * @license For full copyright and license information view LICENSE file distributed with this source code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  | namespace eZ\Bundle\EzPublishCoreBundle\Command; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  | use Doctrine\DBAL\Connection; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | use Exception; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | use eZ\Bundle\EzPublishCoreBundle\ApiLoader\RepositoryConfigurationProvider; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | use eZ\Publish\API\Repository\Repository; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | use eZ\Publish\API\Repository\Values\Content\VersionInfo; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | use eZ\Publish\Core\Base\Exceptions\InvalidArgumentException; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | use PDO; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | use Symfony\Component\Console\Command\Command; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | use Symfony\Component\Console\Input\InputInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | use Symfony\Component\Console\Input\InputOption; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | use Symfony\Component\Console\Output\Output; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | use Symfony\Component\Console\Output\OutputInterface; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | class CleanupVersionsCommand extends Command | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |     const DEFAULT_REPOSITORY_USER = 'admin'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |     const VERSION_DRAFT = 'draft'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |     const VERSION_ARCHIVED = 'archived'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |     const VERSION_PUBLISHED = 'published'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |     const VERSION_ALL = 'all'; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  |     const VERSION_STATUS = [ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |         self::VERSION_DRAFT => VersionInfo::STATUS_DRAFT, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |         self::VERSION_ARCHIVED => VersionInfo::STATUS_ARCHIVED, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |         self::VERSION_PUBLISHED => VersionInfo::STATUS_PUBLISHED, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |     ]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @var \eZ\Publish\API\Repository\Repository | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |     private $repository; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |      * @var \eZ\Publish\API\Repository\UserService | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     private $userService; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * @var \eZ\Publish\API\Repository\ContentService | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |     private $contentService; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * @var \eZ\Publish\API\Repository\PermissionResolver | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |     private $permissionResolver; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |      * @var \eZ\Bundle\EzPublishCoreBundle\ApiLoader\RepositoryConfigurationProvider | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |     private $repositoryConfigurationProvider; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |      * @var \Doctrine\DBAL\Driver\Connection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |     private $connection; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |     public function __construct( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |         Repository $repository, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |         RepositoryConfigurationProvider $repositoryConfigurationProvider, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |         Connection $connection | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |     ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |         $this->repository = $repository; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |         $this->repositoryConfigurationProvider = $repositoryConfigurationProvider; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         $this->connection = $connection; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |         parent::__construct(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |  | 
            
                                                                                                            
                            
            
                                                                    
                                                                                                        
            
            
                | 79 |  | View Code Duplication |     protected function initialize(InputInterface $input, OutputInterface $output) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |         parent::initialize($input, $output); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |         $this->userService = $this->repository->getUserService(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |         $this->contentService = $this->repository->getContentService(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |         $this->permissionResolver = $this->repository->getPermissionResolver(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |         $this->permissionResolver->setCurrentUserReference( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |             $this->userService->loadUserByLogin($input->getOption('user')) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 91 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 92 |  |  |     protected function configure() | 
            
                                                                        
                            
            
                                    
            
            
                | 93 |  |  |     { | 
            
                                                                        
                            
            
                                    
            
            
                | 94 |  |  |         $config = $this->repositoryConfigurationProvider->getRepositoryConfig(); | 
            
                                                                        
                            
            
                                    
            
            
                | 95 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 96 |  |  |         $this | 
            
                                                                        
                            
            
                                    
            
            
                | 97 |  |  |             ->setName('ezplatform:content:cleanup-versions') | 
            
                                                                        
                            
            
                                    
            
            
                | 98 |  |  |             ->setDescription('Remove unwanted content versions. It keeps published version untouched. By default, it keeps also the last archived/draft version.') | 
            
                                                                        
                            
            
                                    
            
            
                | 99 |  |  |             ->addOption( | 
            
                                                                        
                            
            
                                    
            
            
                | 100 |  |  |                 'status', | 
            
                                                                        
                            
            
                                    
            
            
                | 101 |  |  |                 't', | 
            
                                                                        
                            
            
                                    
            
            
                | 102 |  |  |                 InputOption::VALUE_OPTIONAL, | 
            
                                                                        
                            
            
                                    
            
            
                | 103 |  |  |                 sprintf( | 
            
                                                                        
                            
            
                                    
            
            
                | 104 |  |  |                     "Select which version types should be removed: '%s', '%s', '%s'.", | 
            
                                                                        
                            
            
                                    
            
            
                | 105 |  |  |                     self::VERSION_DRAFT, | 
            
                                                                        
                            
            
                                    
            
            
                | 106 |  |  |                     self::VERSION_ARCHIVED, | 
            
                                                                        
                            
            
                                    
            
            
                | 107 |  |  |                     self::VERSION_ALL | 
            
                                                                        
                            
            
                                    
            
            
                | 108 |  |  |                 ), | 
            
                                                                        
                            
            
                                    
            
            
                | 109 |  |  |                 self::VERSION_ALL | 
            
                                                                        
                            
            
                                    
            
            
                | 110 |  |  |             ) | 
            
                                                                        
                            
            
                                    
            
            
                | 111 |  |  |             ->addOption( | 
            
                                                                        
                            
            
                                    
            
            
                | 112 |  |  |                 'keep', | 
            
                                                                        
                            
            
                                    
            
            
                | 113 |  |  |                 'k', | 
            
                                                                        
                            
            
                                    
            
            
                | 114 |  |  |                 InputOption::VALUE_OPTIONAL, | 
            
                                                                        
                            
            
                                    
            
            
                | 115 |  |  |                 "Sets number of the most recent versions (both drafts and archived) which won't be removed.", | 
            
                                                                        
                            
            
                                    
            
            
                | 116 |  |  |                 $config['options']['default_version_archive_limit'] | 
            
                                                                        
                            
            
                                    
            
            
                | 117 |  |  |             ) | 
            
                                                                        
                            
            
                                    
            
            
                | 118 |  |  |             ->addOption( | 
            
                                                                        
                            
            
                                    
            
            
                | 119 |  |  |                 'user', | 
            
                                                                        
                            
            
                                    
            
            
                | 120 |  |  |                 'u', | 
            
                                                                        
                            
            
                                    
            
            
                | 121 |  |  |                 InputOption::VALUE_OPTIONAL, | 
            
                                                                        
                            
            
                                    
            
            
                | 122 |  |  |                 'eZ Platform username (with Role containing at least Content policies: remove, read, versionread)', | 
            
                                                                        
                            
            
                                    
            
            
                | 123 |  |  |                 self::DEFAULT_REPOSITORY_USER | 
            
                                                                        
                            
            
                                    
            
            
                | 124 |  |  |             ); | 
            
                                                                        
                            
            
                                    
            
            
                | 125 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |     protected function execute(InputInterface $input, OutputInterface $output) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |         if (($keep = (int) $input->getOption('keep')) < 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |             throw new InvalidArgumentException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |                 'status', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |                 'Keep value can not be negative.' | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |             ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |         $status = $input->getOption('status'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |         $contentIds = $this->getObjectsIds($keep, $status); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |         $contentIdsCount = count($contentIds); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |         if ($contentIdsCount === 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |             $output->writeln('<info>There is no Content matching given criteria.</info>'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |             return; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |         $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |             '<info>Found %d Content IDs matching given criteria.</info>', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |             $contentIdsCount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         )); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |         $removedVersionsCounter = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |         $removeAll = $status === self::VERSION_ALL; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |         $removeDrafts = $status === self::VERSION_DRAFT; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |         $removeArchived = $status === self::VERSION_ARCHIVED; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |         foreach ($contentIds as $contentId) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |             try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |                 $contentInfo = $this->contentService->loadContentInfo((int) $contentId); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |                 $versions = $this->contentService->loadVersions($contentInfo); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |                 $versionsCount = count($versions); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |                 $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |                     '<info>Content %d has %d version(s)</info>', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |                     (int) $contentId, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |                     $versionsCount | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |                 ), Output::VERBOSITY_VERBOSE); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |                 $versions = array_filter($versions, function ($version) use ($removeAll, $removeDrafts, $removeArchived) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |                     if ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |                         ($removeAll && $version->status !== VersionInfo::STATUS_PUBLISHED) || | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |                         ($removeDrafts && $version->status === VersionInfo::STATUS_DRAFT) || | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |                         ($removeArchived && $version->status === VersionInfo::STATUS_ARCHIVED) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |                     ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |                         return $version; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |                     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |                 }); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |                 if ($keep > 0) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |                     $versions = array_slice($versions, 0, -$keep); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |                 $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |                     "Found %d content's (%d) version(s) to remove.", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |                     count($versions), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |                     (int) $contentId | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |                 ), Output::VERBOSITY_VERBOSE); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |                 /** @var \eZ\Publish\API\Repository\Values\Content\VersionInfo $version */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |                 foreach ($versions as $version) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |                     $this->contentService->deleteVersion($version); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |                     ++$removedVersionsCounter; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |                     $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |                         "Content's (%d) version (%d) has been deleted.", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |                         $contentInfo->id, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |                         $version->id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |                     ), Output::VERBOSITY_VERBOSE); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |                 } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |             } catch (Exception $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 201 |  |  |                 $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 202 |  |  |                     '<error>%s</error>', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 203 |  |  |                     $e->getMessage() | 
            
                                                                                                            
                            
            
                                    
            
            
                | 204 |  |  |                 )); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |         $output->writeln(sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |             '<info>Removed %d unwanted contents version(s).</info>', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |             $removedVersionsCounter | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |         )); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |      * @param int $keep | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |      * @param string $status | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |      * @return array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |      * @throws \eZ\Publish\Core\Base\Exceptions\InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |     protected function getObjectsIds($keep, $status) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |         $query = $this->connection->createQueryBuilder() | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |                 ->select('c.id') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |                 ->from('ezcontentobject', 'c') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |                 ->join('c', 'ezcontentobject_version', 'v', 'v.contentobject_id = c.id') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |                 ->groupBy('c.id', 'v.status') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |                 ->having('count(c.id) > :keep'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |         $query->setParameter('keep', $keep); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |         if ($status !== self::VERSION_ALL) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |             $query->where('v.status = :status'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |             $query->setParameter('status', $this->mapStatusToVersionInfoStatus($status)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |         } else { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 236 |  |  |             $query->andWhere('v.status != :status'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 237 |  |  |             $query->setParameter('status', $this->mapStatusToVersionInfoStatus(self::VERSION_PUBLISHED)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 238 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 239 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 240 |  |  |         $stmt = $query->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 241 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 242 |  |  |         return $stmt->fetchAll(PDO::FETCH_COLUMN); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 243 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 244 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 245 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 246 |  |  |      * @param string $status | 
            
                                                                                                            
                            
            
                                    
            
            
                | 247 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 248 |  |  |      * @return int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 249 |  |  |      * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 250 |  |  |      * @throws \eZ\Publish\Core\Base\Exceptions\InvalidArgumentException | 
            
                                                                                                            
                            
            
                                    
            
            
                | 251 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 252 |  |  |     private function mapStatusToVersionInfoStatus($status) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 253 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 254 |  |  |         if (array_key_exists($status, self::VERSION_STATUS)) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 255 |  |  |             return self::VERSION_STATUS[$status]; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 256 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 257 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 258 |  |  |         throw new InvalidArgumentException( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 259 |  |  |             'status', | 
            
                                                                                                            
                            
            
                                    
            
            
                | 260 |  |  |             sprintf( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 261 |  |  |                 "Status %s can't be mapped to VersionInfo status.", | 
            
                                                                                                            
                            
            
                                    
            
            
                | 262 |  |  |                 $status | 
            
                                                                                                            
                            
            
                                    
            
            
                | 263 |  |  |             ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 264 |  |  |         ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 265 |  |  |     } | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 266 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 267 |  |  |  | 
            
                        
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: