nextcloud /
server
| Total Complexity | 104 |
| Total Lines | 1079 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like Manager often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Manager, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 44 | class Manager implements ICommentsManager { |
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| 45 | |||
| 46 | /** @var IDBConnection */ |
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| 47 | protected $dbConn; |
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| 48 | |||
| 49 | /** @var ILogger */ |
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| 50 | protected $logger; |
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| 51 | |||
| 52 | /** @var IConfig */ |
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| 53 | protected $config; |
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| 54 | |||
| 55 | /** @var IComment[] */ |
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| 56 | protected $commentsCache = []; |
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| 57 | |||
| 58 | /** @var \Closure[] */ |
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| 59 | protected $eventHandlerClosures = []; |
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| 60 | |||
| 61 | /** @var ICommentsEventHandler[] */ |
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| 62 | protected $eventHandlers = []; |
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| 63 | |||
| 64 | /** @var \Closure[] */ |
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| 65 | protected $displayNameResolvers = []; |
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| 66 | |||
| 67 | /** |
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| 68 | * Manager constructor. |
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| 69 | * |
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| 70 | * @param IDBConnection $dbConn |
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| 71 | * @param ILogger $logger |
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| 72 | * @param IConfig $config |
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| 73 | */ |
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| 74 | public function __construct( |
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| 75 | IDBConnection $dbConn, |
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| 76 | ILogger $logger, |
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| 77 | IConfig $config |
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| 78 | ) { |
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| 79 | $this->dbConn = $dbConn; |
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| 80 | $this->logger = $logger; |
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| 81 | $this->config = $config; |
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| 82 | } |
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| 83 | |||
| 84 | /** |
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| 85 | * converts data base data into PHP native, proper types as defined by |
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| 86 | * IComment interface. |
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| 87 | * |
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| 88 | * @param array $data |
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| 89 | * @return array |
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| 90 | */ |
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| 91 | protected function normalizeDatabaseData(array $data) { |
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| 92 | $data['id'] = (string)$data['id']; |
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| 93 | $data['parent_id'] = (string)$data['parent_id']; |
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| 94 | $data['topmost_parent_id'] = (string)$data['topmost_parent_id']; |
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| 95 | $data['creation_timestamp'] = new \DateTime($data['creation_timestamp']); |
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| 96 | if (!is_null($data['latest_child_timestamp'])) { |
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| 97 | $data['latest_child_timestamp'] = new \DateTime($data['latest_child_timestamp']); |
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| 98 | } |
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| 99 | $data['children_count'] = (int)$data['children_count']; |
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| 100 | $data['reference_id'] = $data['reference_id'] ?? null; |
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| 101 | return $data; |
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| 102 | } |
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| 103 | |||
| 104 | |||
| 105 | /** |
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| 106 | * @param array $data |
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| 107 | * @return IComment |
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| 108 | */ |
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| 109 | public function getCommentFromData(array $data): IComment { |
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| 110 | return new Comment($this->normalizeDatabaseData($data)); |
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| 111 | } |
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| 112 | |||
| 113 | /** |
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| 114 | * prepares a comment for an insert or update operation after making sure |
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| 115 | * all necessary fields have a value assigned. |
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| 116 | * |
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| 117 | * @param IComment $comment |
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| 118 | * @return IComment returns the same updated IComment instance as provided |
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| 119 | * by parameter for convenience |
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| 120 | * @throws \UnexpectedValueException |
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| 121 | */ |
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| 122 | protected function prepareCommentForDatabaseWrite(IComment $comment) { |
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| 123 | if (!$comment->getActorType() |
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| 124 | || $comment->getActorId() === '' |
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| 125 | || !$comment->getObjectType() |
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| 126 | || $comment->getObjectId() === '' |
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| 127 | || !$comment->getVerb() |
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| 128 | ) { |
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| 129 | throw new \UnexpectedValueException('Actor, Object and Verb information must be provided for saving'); |
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| 130 | } |
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| 131 | |||
| 132 | if ($comment->getId() === '') { |
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| 133 | $comment->setChildrenCount(0); |
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| 134 | $comment->setLatestChildDateTime(new \DateTime('0000-00-00 00:00:00', new \DateTimeZone('UTC'))); |
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| 135 | $comment->setLatestChildDateTime(null); |
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|
Bug
introduced
by
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| 136 | } |
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| 137 | |||
| 138 | if (is_null($comment->getCreationDateTime())) { |
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| 139 | $comment->setCreationDateTime(new \DateTime()); |
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| 140 | } |
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| 141 | |||
| 142 | if ($comment->getParentId() !== '0') { |
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| 143 | $comment->setTopmostParentId($this->determineTopmostParentId($comment->getParentId())); |
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| 144 | } else { |
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| 145 | $comment->setTopmostParentId('0'); |
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| 146 | } |
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| 147 | |||
| 148 | $this->cache($comment); |
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| 149 | |||
| 150 | return $comment; |
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| 151 | } |
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| 152 | |||
| 153 | /** |
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| 154 | * returns the topmost parent id of a given comment identified by ID |
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| 155 | * |
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| 156 | * @param string $id |
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| 157 | * @return string |
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| 158 | * @throws NotFoundException |
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| 159 | */ |
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| 160 | protected function determineTopmostParentId($id) { |
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| 161 | $comment = $this->get($id); |
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| 162 | if ($comment->getParentId() === '0') { |
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| 163 | return $comment->getId(); |
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| 164 | } |
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| 165 | |||
| 166 | return $this->determineTopmostParentId($comment->getParentId()); |
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| 167 | } |
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| 168 | |||
| 169 | /** |
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| 170 | * updates child information of a comment |
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| 171 | * |
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| 172 | * @param string $id |
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| 173 | * @param \DateTime $cDateTime the date time of the most recent child |
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| 174 | * @throws NotFoundException |
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| 175 | */ |
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| 176 | protected function updateChildrenInformation($id, \DateTime $cDateTime) { |
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| 177 | $qb = $this->dbConn->getQueryBuilder(); |
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| 178 | $query = $qb->select($qb->func()->count('id')) |
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| 179 | ->from('comments') |
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| 180 | ->where($qb->expr()->eq('parent_id', $qb->createParameter('id'))) |
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| 181 | ->setParameter('id', $id); |
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| 182 | |||
| 183 | $resultStatement = $query->execute(); |
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| 184 | $data = $resultStatement->fetch(\PDO::FETCH_NUM); |
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| 185 | $resultStatement->closeCursor(); |
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| 186 | $children = (int)$data[0]; |
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| 187 | |||
| 188 | $comment = $this->get($id); |
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| 189 | $comment->setChildrenCount($children); |
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| 190 | $comment->setLatestChildDateTime($cDateTime); |
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| 191 | $this->save($comment); |
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| 192 | } |
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| 193 | |||
| 194 | /** |
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| 195 | * Tests whether actor or object type and id parameters are acceptable. |
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| 196 | * Throws exception if not. |
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| 197 | * |
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| 198 | * @param string $role |
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| 199 | * @param string $type |
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| 200 | * @param string $id |
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| 201 | * @throws \InvalidArgumentException |
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| 202 | */ |
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| 203 | protected function checkRoleParameters($role, $type, $id) { |
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| 204 | if ( |
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| 205 | !is_string($type) || empty($type) |
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| 206 | || !is_string($id) || empty($id) |
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| 207 | ) { |
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| 208 | throw new \InvalidArgumentException($role . ' parameters must be string and not empty'); |
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| 209 | } |
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| 210 | } |
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| 211 | |||
| 212 | /** |
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| 213 | * run-time caches a comment |
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| 214 | * |
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| 215 | * @param IComment $comment |
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| 216 | */ |
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| 217 | protected function cache(IComment $comment) { |
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| 218 | $id = $comment->getId(); |
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| 219 | if (empty($id)) { |
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| 220 | return; |
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| 221 | } |
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| 222 | $this->commentsCache[(string)$id] = $comment; |
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| 223 | } |
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| 224 | |||
| 225 | /** |
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| 226 | * removes an entry from the comments run time cache |
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| 227 | * |
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| 228 | * @param mixed $id the comment's id |
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| 229 | */ |
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| 230 | protected function uncache($id) { |
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| 231 | $id = (string)$id; |
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| 232 | if (isset($this->commentsCache[$id])) { |
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| 233 | unset($this->commentsCache[$id]); |
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| 234 | } |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * returns a comment instance |
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| 239 | * |
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| 240 | * @param string $id the ID of the comment |
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| 241 | * @return IComment |
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| 242 | * @throws NotFoundException |
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| 243 | * @throws \InvalidArgumentException |
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| 244 | * @since 9.0.0 |
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| 245 | */ |
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| 246 | public function get($id) { |
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| 247 | if ((int)$id === 0) { |
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| 248 | throw new \InvalidArgumentException('IDs must be translatable to a number in this implementation.'); |
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| 249 | } |
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| 250 | |||
| 251 | if (isset($this->commentsCache[$id])) { |
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| 252 | return $this->commentsCache[$id]; |
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| 253 | } |
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| 254 | |||
| 255 | $qb = $this->dbConn->getQueryBuilder(); |
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| 256 | $resultStatement = $qb->select('*') |
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| 257 | ->from('comments') |
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| 258 | ->where($qb->expr()->eq('id', $qb->createParameter('id'))) |
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| 259 | ->setParameter('id', $id, IQueryBuilder::PARAM_INT) |
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| 260 | ->execute(); |
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| 261 | |||
| 262 | $data = $resultStatement->fetch(); |
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| 263 | $resultStatement->closeCursor(); |
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| 264 | if (!$data) { |
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| 265 | throw new NotFoundException(); |
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| 266 | } |
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| 267 | |||
| 268 | |||
| 269 | $comment = $this->getCommentFromData($data); |
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| 270 | $this->cache($comment); |
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| 271 | return $comment; |
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| 272 | } |
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| 273 | |||
| 274 | /** |
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| 275 | * returns the comment specified by the id and all it's child comments. |
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| 276 | * At this point of time, we do only support one level depth. |
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| 277 | * |
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| 278 | * @param string $id |
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| 279 | * @param int $limit max number of entries to return, 0 returns all |
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| 280 | * @param int $offset the start entry |
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| 281 | * @return array |
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| 282 | * @since 9.0.0 |
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| 283 | * |
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| 284 | * The return array looks like this |
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| 285 | * [ |
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| 286 | * 'comment' => IComment, // root comment |
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| 287 | * 'replies' => |
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| 288 | * [ |
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| 289 | * 0 => |
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| 290 | * [ |
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| 291 | * 'comment' => IComment, |
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| 292 | * 'replies' => [] |
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| 293 | * ] |
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| 294 | * 1 => |
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| 295 | * [ |
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| 296 | * 'comment' => IComment, |
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| 297 | * 'replies'=> [] |
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| 298 | * ], |
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| 299 | * … |
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| 300 | * ] |
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| 301 | * ] |
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| 302 | */ |
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| 303 | public function getTree($id, $limit = 0, $offset = 0) { |
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| 304 | $tree = []; |
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| 305 | $tree['comment'] = $this->get($id); |
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| 306 | $tree['replies'] = []; |
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| 307 | |||
| 308 | $qb = $this->dbConn->getQueryBuilder(); |
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| 309 | $query = $qb->select('*') |
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| 310 | ->from('comments') |
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| 311 | ->where($qb->expr()->eq('topmost_parent_id', $qb->createParameter('id'))) |
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| 312 | ->orderBy('creation_timestamp', 'DESC') |
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| 313 | ->setParameter('id', $id); |
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| 314 | |||
| 315 | if ($limit > 0) { |
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| 316 | $query->setMaxResults($limit); |
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| 317 | } |
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| 318 | if ($offset > 0) { |
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| 319 | $query->setFirstResult($offset); |
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| 320 | } |
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| 321 | |||
| 322 | $resultStatement = $query->execute(); |
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| 323 | while ($data = $resultStatement->fetch()) { |
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| 324 | $comment = $this->getCommentFromData($data); |
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| 325 | $this->cache($comment); |
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| 326 | $tree['replies'][] = [ |
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| 327 | 'comment' => $comment, |
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| 328 | 'replies' => [] |
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| 329 | ]; |
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| 330 | } |
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| 331 | $resultStatement->closeCursor(); |
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| 332 | |||
| 333 | return $tree; |
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| 334 | } |
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| 335 | |||
| 336 | /** |
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| 337 | * returns comments for a specific object (e.g. a file). |
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| 338 | * |
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| 339 | * The sort order is always newest to oldest. |
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| 340 | * |
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| 341 | * @param string $objectType the object type, e.g. 'files' |
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| 342 | * @param string $objectId the id of the object |
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| 343 | * @param int $limit optional, number of maximum comments to be returned. if |
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| 344 | * not specified, all comments are returned. |
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| 345 | * @param int $offset optional, starting point |
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| 346 | * @param \DateTime $notOlderThan optional, timestamp of the oldest comments |
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| 347 | * that may be returned |
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| 348 | * @return IComment[] |
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| 349 | * @since 9.0.0 |
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| 350 | */ |
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| 351 | public function getForObject( |
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| 352 | $objectType, |
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| 353 | $objectId, |
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| 354 | $limit = 0, |
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| 355 | $offset = 0, |
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| 356 | \DateTime $notOlderThan = null |
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| 357 | ) { |
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| 358 | $comments = []; |
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| 359 | |||
| 360 | $qb = $this->dbConn->getQueryBuilder(); |
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| 361 | $query = $qb->select('*') |
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| 362 | ->from('comments') |
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| 363 | ->where($qb->expr()->eq('object_type', $qb->createParameter('type'))) |
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| 364 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id'))) |
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| 365 | ->orderBy('creation_timestamp', 'DESC') |
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| 366 | ->setParameter('type', $objectType) |
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| 367 | ->setParameter('id', $objectId); |
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| 368 | |||
| 369 | if ($limit > 0) { |
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| 370 | $query->setMaxResults($limit); |
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| 371 | } |
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| 372 | if ($offset > 0) { |
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| 373 | $query->setFirstResult($offset); |
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| 374 | } |
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| 375 | if (!is_null($notOlderThan)) { |
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| 376 | $query |
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| 377 | ->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan'))) |
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| 378 | ->setParameter('notOlderThan', $notOlderThan, 'datetime'); |
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| 379 | } |
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| 380 | |||
| 381 | $resultStatement = $query->execute(); |
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| 382 | while ($data = $resultStatement->fetch()) { |
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| 383 | $comment = $this->getCommentFromData($data); |
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| 384 | $this->cache($comment); |
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| 385 | $comments[] = $comment; |
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| 386 | } |
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| 387 | $resultStatement->closeCursor(); |
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| 388 | |||
| 389 | return $comments; |
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| 390 | } |
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| 391 | |||
| 392 | /** |
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| 393 | * @param string $objectType the object type, e.g. 'files' |
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| 394 | * @param string $objectId the id of the object |
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| 395 | * @param int $lastKnownCommentId the last known comment (will be used as offset) |
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| 396 | * @param string $sortDirection direction of the comments (`asc` or `desc`) |
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| 397 | * @param int $limit optional, number of maximum comments to be returned. if |
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| 398 | * set to 0, all comments are returned. |
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| 399 | * @return IComment[] |
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| 400 | * @return array |
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| 401 | */ |
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| 402 | public function getForObjectSince( |
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| 403 | string $objectType, |
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| 404 | string $objectId, |
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| 405 | int $lastKnownCommentId, |
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| 406 | string $sortDirection = 'asc', |
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| 407 | int $limit = 30 |
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| 408 | ): array { |
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| 409 | $comments = []; |
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| 410 | |||
| 411 | $query = $this->dbConn->getQueryBuilder(); |
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| 412 | $query->select('*') |
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| 413 | ->from('comments') |
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| 414 | ->where($query->expr()->eq('object_type', $query->createNamedParameter($objectType))) |
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| 415 | ->andWhere($query->expr()->eq('object_id', $query->createNamedParameter($objectId))) |
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| 416 | ->orderBy('creation_timestamp', $sortDirection === 'desc' ? 'DESC' : 'ASC') |
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| 417 | ->addOrderBy('id', $sortDirection === 'desc' ? 'DESC' : 'ASC'); |
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| 418 | |||
| 419 | if ($limit > 0) { |
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| 420 | $query->setMaxResults($limit); |
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| 421 | } |
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| 422 | |||
| 423 | $lastKnownComment = $lastKnownCommentId > 0 ? $this->getLastKnownComment( |
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| 424 | $objectType, |
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| 425 | $objectId, |
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| 426 | $lastKnownCommentId |
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| 427 | ) : null; |
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| 428 | if ($lastKnownComment instanceof IComment) { |
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| 429 | $lastKnownCommentDateTime = $lastKnownComment->getCreationDateTime(); |
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| 430 | if ($sortDirection === 'desc') { |
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| 431 | $query->andWhere( |
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| 432 | $query->expr()->orX( |
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| 433 | $query->expr()->lt( |
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| 434 | 'creation_timestamp', |
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| 435 | $query->createNamedParameter($lastKnownCommentDateTime, IQueryBuilder::PARAM_DATE), |
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| 436 | IQueryBuilder::PARAM_DATE |
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| 437 | ), |
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| 438 | $query->expr()->andX( |
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| 439 | $query->expr()->eq( |
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| 440 | 'creation_timestamp', |
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| 441 | $query->createNamedParameter($lastKnownCommentDateTime, IQueryBuilder::PARAM_DATE), |
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| 442 | IQueryBuilder::PARAM_DATE |
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| 443 | ), |
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| 444 | $query->expr()->lt('id', $query->createNamedParameter($lastKnownCommentId)) |
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| 445 | ) |
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| 446 | ) |
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| 447 | ); |
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| 448 | } else { |
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| 449 | $query->andWhere( |
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| 450 | $query->expr()->orX( |
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| 451 | $query->expr()->gt( |
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| 452 | 'creation_timestamp', |
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| 453 | $query->createNamedParameter($lastKnownCommentDateTime, IQueryBuilder::PARAM_DATE), |
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| 454 | IQueryBuilder::PARAM_DATE |
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| 455 | ), |
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| 456 | $query->expr()->andX( |
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| 457 | $query->expr()->eq( |
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| 458 | 'creation_timestamp', |
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| 459 | $query->createNamedParameter($lastKnownCommentDateTime, IQueryBuilder::PARAM_DATE), |
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| 460 | IQueryBuilder::PARAM_DATE |
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| 461 | ), |
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| 462 | $query->expr()->gt('id', $query->createNamedParameter($lastKnownCommentId)) |
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| 463 | ) |
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| 464 | ) |
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| 465 | ); |
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| 466 | } |
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| 467 | } |
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| 468 | |||
| 469 | $resultStatement = $query->execute(); |
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| 470 | while ($data = $resultStatement->fetch()) { |
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| 471 | $comment = $this->getCommentFromData($data); |
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| 472 | $this->cache($comment); |
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| 473 | $comments[] = $comment; |
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| 474 | } |
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| 475 | $resultStatement->closeCursor(); |
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| 476 | |||
| 477 | return $comments; |
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| 478 | } |
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| 479 | |||
| 480 | /** |
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| 481 | * @param string $objectType the object type, e.g. 'files' |
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| 482 | * @param string $objectId the id of the object |
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| 483 | * @param int $id the comment to look for |
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| 484 | * @return Comment|null |
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| 485 | */ |
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| 486 | protected function getLastKnownComment(string $objectType, |
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| 487 | string $objectId, |
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| 488 | int $id) { |
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| 489 | $query = $this->dbConn->getQueryBuilder(); |
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| 490 | $query->select('*') |
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| 491 | ->from('comments') |
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| 492 | ->where($query->expr()->eq('object_type', $query->createNamedParameter($objectType))) |
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| 493 | ->andWhere($query->expr()->eq('object_id', $query->createNamedParameter($objectId))) |
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| 494 | ->andWhere($query->expr()->eq('id', $query->createNamedParameter($id, IQueryBuilder::PARAM_INT))); |
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| 495 | |||
| 496 | $result = $query->execute(); |
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| 497 | $row = $result->fetch(); |
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| 498 | $result->closeCursor(); |
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| 499 | |||
| 500 | if ($row) { |
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| 501 | $comment = $this->getCommentFromData($row); |
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| 502 | $this->cache($comment); |
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| 503 | return $comment; |
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| 504 | } |
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| 505 | |||
| 506 | return null; |
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| 507 | } |
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| 508 | |||
| 509 | /** |
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| 510 | * Search for comments with a given content |
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| 511 | * |
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| 512 | * @param string $search content to search for |
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| 513 | * @param string $objectType Limit the search by object type |
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| 514 | * @param string $objectId Limit the search by object id |
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| 515 | * @param string $verb Limit the verb of the comment |
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| 516 | * @param int $offset |
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| 517 | * @param int $limit |
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| 518 | * @return IComment[] |
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| 519 | */ |
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| 520 | public function search(string $search, string $objectType, string $objectId, string $verb, int $offset, int $limit = 50): array { |
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| 521 | $query = $this->dbConn->getQueryBuilder(); |
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| 522 | |||
| 523 | $query->select('*') |
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| 524 | ->from('comments') |
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| 525 | ->where($query->expr()->iLike('message', $query->createNamedParameter( |
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| 526 | '%' . $this->dbConn->escapeLikeParameter($search). '%' |
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| 527 | ))) |
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| 528 | ->orderBy('creation_timestamp', 'DESC') |
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| 529 | ->addOrderBy('id', 'DESC') |
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| 530 | ->setMaxResults($limit); |
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| 531 | |||
| 532 | if ($objectType !== '') { |
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| 533 | $query->andWhere($query->expr()->eq('object_type', $query->createNamedParameter($objectType))); |
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| 534 | } |
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| 535 | if ($objectId !== '') { |
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| 536 | $query->andWhere($query->expr()->eq('object_id', $query->createNamedParameter($objectId))); |
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| 537 | } |
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| 538 | if ($verb !== '') { |
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| 539 | $query->andWhere($query->expr()->eq('verb', $query->createNamedParameter($verb))); |
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| 540 | } |
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| 541 | if ($offset !== 0) { |
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| 542 | $query->setFirstResult($offset); |
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| 543 | } |
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| 544 | |||
| 545 | $comments = []; |
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| 546 | $result = $query->execute(); |
||
| 547 | while ($data = $result->fetch()) { |
||
| 548 | $comment = $this->getCommentFromData($data); |
||
| 549 | $this->cache($comment); |
||
| 550 | $comments[] = $comment; |
||
| 551 | } |
||
| 552 | $result->closeCursor(); |
||
| 553 | |||
| 554 | return $comments; |
||
| 555 | } |
||
| 556 | |||
| 557 | /** |
||
| 558 | * @param $objectType string the object type, e.g. 'files' |
||
| 559 | * @param $objectId string the id of the object |
||
| 560 | * @param \DateTime $notOlderThan optional, timestamp of the oldest comments |
||
| 561 | * that may be returned |
||
| 562 | * @param string $verb Limit the verb of the comment - Added in 14.0.0 |
||
| 563 | * @return Int |
||
| 564 | * @since 9.0.0 |
||
| 565 | */ |
||
| 566 | public function getNumberOfCommentsForObject($objectType, $objectId, \DateTime $notOlderThan = null, $verb = '') { |
||
| 567 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 568 | $query = $qb->select($qb->func()->count('id')) |
||
| 569 | ->from('comments') |
||
| 570 | ->where($qb->expr()->eq('object_type', $qb->createParameter('type'))) |
||
| 571 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id'))) |
||
| 572 | ->setParameter('type', $objectType) |
||
| 573 | ->setParameter('id', $objectId); |
||
| 574 | |||
| 575 | if (!is_null($notOlderThan)) { |
||
| 576 | $query |
||
| 577 | ->andWhere($qb->expr()->gt('creation_timestamp', $qb->createParameter('notOlderThan'))) |
||
| 578 | ->setParameter('notOlderThan', $notOlderThan, 'datetime'); |
||
| 579 | } |
||
| 580 | |||
| 581 | if ($verb !== '') { |
||
| 582 | $query->andWhere($qb->expr()->eq('verb', $qb->createNamedParameter($verb))); |
||
| 583 | } |
||
| 584 | |||
| 585 | $resultStatement = $query->execute(); |
||
| 586 | $data = $resultStatement->fetch(\PDO::FETCH_NUM); |
||
| 587 | $resultStatement->closeCursor(); |
||
| 588 | return (int)$data[0]; |
||
| 589 | } |
||
| 590 | |||
| 591 | /** |
||
| 592 | * Get the number of unread comments for all files in a folder |
||
| 593 | * |
||
| 594 | * @param int $folderId |
||
| 595 | * @param IUser $user |
||
| 596 | * @return array [$fileId => $unreadCount] |
||
| 597 | * |
||
| 598 | * @suppress SqlInjectionChecker |
||
| 599 | */ |
||
| 600 | public function getNumberOfUnreadCommentsForFolder($folderId, IUser $user) { |
||
| 644 | } |
||
| 645 | |||
| 646 | /** |
||
| 647 | * creates a new comment and returns it. At this point of time, it is not |
||
| 648 | * saved in the used data storage. Use save() after setting other fields |
||
| 649 | * of the comment (e.g. message or verb). |
||
| 650 | * |
||
| 651 | * @param string $actorType the actor type (e.g. 'users') |
||
| 652 | * @param string $actorId a user id |
||
| 653 | * @param string $objectType the object type the comment is attached to |
||
| 654 | * @param string $objectId the object id the comment is attached to |
||
| 655 | * @return IComment |
||
| 656 | * @since 9.0.0 |
||
| 657 | */ |
||
| 658 | public function create($actorType, $actorId, $objectType, $objectId) { |
||
| 659 | $comment = new Comment(); |
||
| 660 | $comment |
||
| 661 | ->setActor($actorType, $actorId) |
||
| 662 | ->setObject($objectType, $objectId); |
||
| 663 | return $comment; |
||
| 664 | } |
||
| 665 | |||
| 666 | /** |
||
| 667 | * permanently deletes the comment specified by the ID |
||
| 668 | * |
||
| 669 | * When the comment has child comments, their parent ID will be changed to |
||
| 670 | * the parent ID of the item that is to be deleted. |
||
| 671 | * |
||
| 672 | * @param string $id |
||
| 673 | * @return bool |
||
| 674 | * @throws \InvalidArgumentException |
||
| 675 | * @since 9.0.0 |
||
| 676 | */ |
||
| 677 | public function delete($id) { |
||
| 678 | if (!is_string($id)) { |
||
| 679 | throw new \InvalidArgumentException('Parameter must be string'); |
||
| 680 | } |
||
| 681 | |||
| 682 | try { |
||
| 683 | $comment = $this->get($id); |
||
| 684 | } catch (\Exception $e) { |
||
| 685 | // Ignore exceptions, we just don't fire a hook then |
||
| 686 | $comment = null; |
||
| 687 | } |
||
| 688 | |||
| 689 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 690 | $query = $qb->delete('comments') |
||
| 691 | ->where($qb->expr()->eq('id', $qb->createParameter('id'))) |
||
| 692 | ->setParameter('id', $id); |
||
| 693 | |||
| 694 | try { |
||
| 695 | $affectedRows = $query->execute(); |
||
| 696 | $this->uncache($id); |
||
| 697 | } catch (DriverException $e) { |
||
| 698 | $this->logger->logException($e, ['app' => 'core_comments']); |
||
| 699 | return false; |
||
| 700 | } |
||
| 701 | |||
| 702 | if ($affectedRows > 0 && $comment instanceof IComment) { |
||
| 703 | $this->sendEvent(CommentsEvent::EVENT_DELETE, $comment); |
||
| 704 | } |
||
| 705 | |||
| 706 | return ($affectedRows > 0); |
||
| 707 | } |
||
| 708 | |||
| 709 | /** |
||
| 710 | * saves the comment permanently |
||
| 711 | * |
||
| 712 | * if the supplied comment has an empty ID, a new entry comment will be |
||
| 713 | * saved and the instance updated with the new ID. |
||
| 714 | * |
||
| 715 | * Otherwise, an existing comment will be updated. |
||
| 716 | * |
||
| 717 | * Throws NotFoundException when a comment that is to be updated does not |
||
| 718 | * exist anymore at this point of time. |
||
| 719 | * |
||
| 720 | * @param IComment $comment |
||
| 721 | * @return bool |
||
| 722 | * @throws NotFoundException |
||
| 723 | * @since 9.0.0 |
||
| 724 | */ |
||
| 725 | public function save(IComment $comment) { |
||
| 741 | } |
||
| 742 | |||
| 743 | /** |
||
| 744 | * inserts the provided comment in the database |
||
| 745 | * |
||
| 746 | * @param IComment $comment |
||
| 747 | * @return bool |
||
| 748 | */ |
||
| 749 | protected function insert(IComment $comment): bool { |
||
| 750 | |||
| 751 | try { |
||
| 752 | $result = $this->insertQuery($comment, true); |
||
| 753 | } catch (InvalidFieldNameException $e) { |
||
| 754 | // The reference id field was only added in Nextcloud 19. |
||
| 755 | // In order to not cause too long waiting times on the update, |
||
| 756 | // it was decided to only add it lazy, as it is also not a critical |
||
| 757 | // feature, but only helps to have a better experience while commenting. |
||
| 758 | // So in case the reference_id field is missing, |
||
| 759 | // we simply save the comment without that field. |
||
| 760 | $result = $this->insertQuery($comment, false); |
||
| 761 | } |
||
| 762 | |||
| 763 | return $result; |
||
| 764 | } |
||
| 765 | |||
| 766 | protected function insertQuery(IComment $comment, bool $tryWritingReferenceId): bool { |
||
| 767 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 768 | |||
| 769 | $values = [ |
||
| 770 | 'parent_id' => $qb->createNamedParameter($comment->getParentId()), |
||
| 771 | 'topmost_parent_id' => $qb->createNamedParameter($comment->getTopmostParentId()), |
||
| 772 | 'children_count' => $qb->createNamedParameter($comment->getChildrenCount()), |
||
| 773 | 'actor_type' => $qb->createNamedParameter($comment->getActorType()), |
||
| 774 | 'actor_id' => $qb->createNamedParameter($comment->getActorId()), |
||
| 775 | 'message' => $qb->createNamedParameter($comment->getMessage()), |
||
| 776 | 'verb' => $qb->createNamedParameter($comment->getVerb()), |
||
| 777 | 'creation_timestamp' => $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime'), |
||
| 778 | 'latest_child_timestamp' => $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime'), |
||
| 779 | 'object_type' => $qb->createNamedParameter($comment->getObjectType()), |
||
| 780 | 'object_id' => $qb->createNamedParameter($comment->getObjectId()), |
||
| 781 | ]; |
||
| 782 | |||
| 783 | if ($tryWritingReferenceId) { |
||
| 784 | $values['reference_id'] = $qb->createNamedParameter($comment->getReferenceId()); |
||
| 785 | } |
||
| 786 | |||
| 787 | $affectedRows = $qb->insert('comments') |
||
| 788 | ->values($values) |
||
| 789 | ->execute(); |
||
| 790 | |||
| 791 | if ($affectedRows > 0) { |
||
| 792 | $comment->setId((string)$qb->getLastInsertId()); |
||
| 793 | $this->sendEvent(CommentsEvent::EVENT_ADD, $comment); |
||
| 794 | } |
||
| 795 | |||
| 796 | return $affectedRows > 0; |
||
| 797 | } |
||
| 798 | |||
| 799 | /** |
||
| 800 | * updates a Comment data row |
||
| 801 | * |
||
| 802 | * @param IComment $comment |
||
| 803 | * @return bool |
||
| 804 | * @throws NotFoundException |
||
| 805 | */ |
||
| 806 | protected function update(IComment $comment) { |
||
| 807 | // for properly working preUpdate Events we need the old comments as is |
||
| 808 | // in the DB and overcome caching. Also avoid that outdated information stays. |
||
| 809 | $this->uncache($comment->getId()); |
||
| 810 | $this->sendEvent(CommentsEvent::EVENT_PRE_UPDATE, $this->get($comment->getId())); |
||
| 811 | $this->uncache($comment->getId()); |
||
| 812 | |||
| 813 | try { |
||
| 814 | $result = $this->updateQuery($comment, true); |
||
| 815 | } catch (InvalidFieldNameException $e) { |
||
| 816 | // See function insert() for explanation |
||
| 817 | $result = $this->updateQuery($comment, false); |
||
| 818 | } |
||
| 819 | |||
| 820 | $this->sendEvent(CommentsEvent::EVENT_UPDATE, $comment); |
||
| 821 | |||
| 822 | return $result; |
||
| 823 | } |
||
| 824 | |||
| 825 | protected function updateQuery(IComment $comment, bool $tryWritingReferenceId): bool { |
||
| 826 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 827 | $qb |
||
| 828 | ->update('comments') |
||
| 829 | ->set('parent_id', $qb->createNamedParameter($comment->getParentId())) |
||
| 830 | ->set('topmost_parent_id', $qb->createNamedParameter($comment->getTopmostParentId())) |
||
| 831 | ->set('children_count', $qb->createNamedParameter($comment->getChildrenCount())) |
||
| 832 | ->set('actor_type', $qb->createNamedParameter($comment->getActorType())) |
||
| 833 | ->set('actor_id', $qb->createNamedParameter($comment->getActorId())) |
||
| 834 | ->set('message', $qb->createNamedParameter($comment->getMessage())) |
||
| 835 | ->set('verb', $qb->createNamedParameter($comment->getVerb())) |
||
| 836 | ->set('creation_timestamp', $qb->createNamedParameter($comment->getCreationDateTime(), 'datetime')) |
||
| 837 | ->set('latest_child_timestamp', $qb->createNamedParameter($comment->getLatestChildDateTime(), 'datetime')) |
||
| 838 | ->set('object_type', $qb->createNamedParameter($comment->getObjectType())) |
||
| 839 | ->set('object_id', $qb->createNamedParameter($comment->getObjectId())); |
||
| 840 | |||
| 841 | if ($tryWritingReferenceId) { |
||
| 842 | $qb->set('reference_id', $qb->createNamedParameter($comment->getReferenceId())); |
||
| 843 | } |
||
| 844 | |||
| 845 | $affectedRows = $qb->where($qb->expr()->eq('id', $qb->createNamedParameter($comment->getId()))) |
||
| 846 | ->execute(); |
||
| 847 | |||
| 848 | if ($affectedRows === 0) { |
||
| 849 | throw new NotFoundException('Comment to update does ceased to exist'); |
||
| 850 | } |
||
| 851 | |||
| 852 | return $affectedRows > 0; |
||
| 853 | } |
||
| 854 | |||
| 855 | /** |
||
| 856 | * removes references to specific actor (e.g. on user delete) of a comment. |
||
| 857 | * The comment itself must not get lost/deleted. |
||
| 858 | * |
||
| 859 | * @param string $actorType the actor type (e.g. 'users') |
||
| 860 | * @param string $actorId a user id |
||
| 861 | * @return boolean |
||
| 862 | * @since 9.0.0 |
||
| 863 | */ |
||
| 864 | public function deleteReferencesOfActor($actorType, $actorId) { |
||
| 865 | $this->checkRoleParameters('Actor', $actorType, $actorId); |
||
| 866 | |||
| 867 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 868 | $affectedRows = $qb |
||
| 869 | ->update('comments') |
||
| 870 | ->set('actor_type', $qb->createNamedParameter(ICommentsManager::DELETED_USER)) |
||
| 871 | ->set('actor_id', $qb->createNamedParameter(ICommentsManager::DELETED_USER)) |
||
| 872 | ->where($qb->expr()->eq('actor_type', $qb->createParameter('type'))) |
||
| 873 | ->andWhere($qb->expr()->eq('actor_id', $qb->createParameter('id'))) |
||
| 874 | ->setParameter('type', $actorType) |
||
| 875 | ->setParameter('id', $actorId) |
||
| 876 | ->execute(); |
||
| 877 | |||
| 878 | $this->commentsCache = []; |
||
| 879 | |||
| 880 | return is_int($affectedRows); |
||
| 881 | } |
||
| 882 | |||
| 883 | /** |
||
| 884 | * deletes all comments made of a specific object (e.g. on file delete) |
||
| 885 | * |
||
| 886 | * @param string $objectType the object type (e.g. 'files') |
||
| 887 | * @param string $objectId e.g. the file id |
||
| 888 | * @return boolean |
||
| 889 | * @since 9.0.0 |
||
| 890 | */ |
||
| 891 | public function deleteCommentsAtObject($objectType, $objectId) { |
||
| 892 | $this->checkRoleParameters('Object', $objectType, $objectId); |
||
| 893 | |||
| 894 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 895 | $affectedRows = $qb |
||
| 896 | ->delete('comments') |
||
| 897 | ->where($qb->expr()->eq('object_type', $qb->createParameter('type'))) |
||
| 898 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('id'))) |
||
| 899 | ->setParameter('type', $objectType) |
||
| 900 | ->setParameter('id', $objectId) |
||
| 901 | ->execute(); |
||
| 902 | |||
| 903 | $this->commentsCache = []; |
||
| 904 | |||
| 905 | return is_int($affectedRows); |
||
| 906 | } |
||
| 907 | |||
| 908 | /** |
||
| 909 | * deletes the read markers for the specified user |
||
| 910 | * |
||
| 911 | * @param \OCP\IUser $user |
||
| 912 | * @return bool |
||
| 913 | * @since 9.0.0 |
||
| 914 | */ |
||
| 915 | public function deleteReadMarksFromUser(IUser $user) { |
||
| 916 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 917 | $query = $qb->delete('comments_read_markers') |
||
| 918 | ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id'))) |
||
| 919 | ->setParameter('user_id', $user->getUID()); |
||
| 920 | |||
| 921 | try { |
||
| 922 | $affectedRows = $query->execute(); |
||
| 923 | } catch (DriverException $e) { |
||
| 924 | $this->logger->logException($e, ['app' => 'core_comments']); |
||
| 925 | return false; |
||
| 926 | } |
||
| 927 | return ($affectedRows > 0); |
||
| 928 | } |
||
| 929 | |||
| 930 | /** |
||
| 931 | * sets the read marker for a given file to the specified date for the |
||
| 932 | * provided user |
||
| 933 | * |
||
| 934 | * @param string $objectType |
||
| 935 | * @param string $objectId |
||
| 936 | * @param \DateTime $dateTime |
||
| 937 | * @param IUser $user |
||
| 938 | * @since 9.0.0 |
||
| 939 | * @suppress SqlInjectionChecker |
||
| 940 | */ |
||
| 941 | public function setReadMark($objectType, $objectId, \DateTime $dateTime, IUser $user) { |
||
| 942 | $this->checkRoleParameters('Object', $objectType, $objectId); |
||
| 943 | |||
| 944 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 945 | $values = [ |
||
| 946 | 'user_id' => $qb->createNamedParameter($user->getUID()), |
||
| 947 | 'marker_datetime' => $qb->createNamedParameter($dateTime, 'datetime'), |
||
| 948 | 'object_type' => $qb->createNamedParameter($objectType), |
||
| 949 | 'object_id' => $qb->createNamedParameter($objectId), |
||
| 950 | ]; |
||
| 951 | |||
| 952 | // Strategy: try to update, if this does not return affected rows, do an insert. |
||
| 953 | $affectedRows = $qb |
||
| 954 | ->update('comments_read_markers') |
||
| 955 | ->set('user_id', $values['user_id']) |
||
| 956 | ->set('marker_datetime', $values['marker_datetime']) |
||
| 957 | ->set('object_type', $values['object_type']) |
||
| 958 | ->set('object_id', $values['object_id']) |
||
| 959 | ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id'))) |
||
| 960 | ->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type'))) |
||
| 961 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id'))) |
||
| 962 | ->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR) |
||
| 963 | ->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR) |
||
| 964 | ->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR) |
||
| 965 | ->execute(); |
||
| 966 | |||
| 967 | if ($affectedRows > 0) { |
||
| 968 | return; |
||
| 969 | } |
||
| 970 | |||
| 971 | $qb->insert('comments_read_markers') |
||
| 972 | ->values($values) |
||
| 973 | ->execute(); |
||
| 974 | } |
||
| 975 | |||
| 976 | /** |
||
| 977 | * returns the read marker for a given file to the specified date for the |
||
| 978 | * provided user. It returns null, when the marker is not present, i.e. |
||
| 979 | * no comments were marked as read. |
||
| 980 | * |
||
| 981 | * @param string $objectType |
||
| 982 | * @param string $objectId |
||
| 983 | * @param IUser $user |
||
| 984 | * @return \DateTime|null |
||
| 985 | * @since 9.0.0 |
||
| 986 | */ |
||
| 987 | public function getReadMark($objectType, $objectId, IUser $user) { |
||
| 988 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 989 | $resultStatement = $qb->select('marker_datetime') |
||
| 990 | ->from('comments_read_markers') |
||
| 991 | ->where($qb->expr()->eq('user_id', $qb->createParameter('user_id'))) |
||
| 992 | ->andWhere($qb->expr()->eq('object_type', $qb->createParameter('object_type'))) |
||
| 993 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id'))) |
||
| 994 | ->setParameter('user_id', $user->getUID(), IQueryBuilder::PARAM_STR) |
||
| 995 | ->setParameter('object_type', $objectType, IQueryBuilder::PARAM_STR) |
||
| 996 | ->setParameter('object_id', $objectId, IQueryBuilder::PARAM_STR) |
||
| 997 | ->execute(); |
||
| 998 | |||
| 999 | $data = $resultStatement->fetch(); |
||
| 1000 | $resultStatement->closeCursor(); |
||
| 1001 | if (!$data || is_null($data['marker_datetime'])) { |
||
| 1002 | return null; |
||
| 1003 | } |
||
| 1004 | |||
| 1005 | return new \DateTime($data['marker_datetime']); |
||
| 1006 | } |
||
| 1007 | |||
| 1008 | /** |
||
| 1009 | * deletes the read markers on the specified object |
||
| 1010 | * |
||
| 1011 | * @param string $objectType |
||
| 1012 | * @param string $objectId |
||
| 1013 | * @return bool |
||
| 1014 | * @since 9.0.0 |
||
| 1015 | */ |
||
| 1016 | public function deleteReadMarksOnObject($objectType, $objectId) { |
||
| 1017 | $this->checkRoleParameters('Object', $objectType, $objectId); |
||
| 1018 | |||
| 1019 | $qb = $this->dbConn->getQueryBuilder(); |
||
| 1020 | $query = $qb->delete('comments_read_markers') |
||
| 1021 | ->where($qb->expr()->eq('object_type', $qb->createParameter('object_type'))) |
||
| 1022 | ->andWhere($qb->expr()->eq('object_id', $qb->createParameter('object_id'))) |
||
| 1023 | ->setParameter('object_type', $objectType) |
||
| 1024 | ->setParameter('object_id', $objectId); |
||
| 1025 | |||
| 1026 | try { |
||
| 1027 | $affectedRows = $query->execute(); |
||
| 1028 | } catch (DriverException $e) { |
||
| 1029 | $this->logger->logException($e, ['app' => 'core_comments']); |
||
| 1030 | return false; |
||
| 1031 | } |
||
| 1032 | return ($affectedRows > 0); |
||
| 1033 | } |
||
| 1034 | |||
| 1035 | /** |
||
| 1036 | * registers an Entity to the manager, so event notifications can be send |
||
| 1037 | * to consumers of the comments infrastructure |
||
| 1038 | * |
||
| 1039 | * @param \Closure $closure |
||
| 1040 | */ |
||
| 1041 | public function registerEventHandler(\Closure $closure) { |
||
| 1042 | $this->eventHandlerClosures[] = $closure; |
||
| 1043 | $this->eventHandlers = []; |
||
| 1044 | } |
||
| 1045 | |||
| 1046 | /** |
||
| 1047 | * registers a method that resolves an ID to a display name for a given type |
||
| 1048 | * |
||
| 1049 | * @param string $type |
||
| 1050 | * @param \Closure $closure |
||
| 1051 | * @throws \OutOfBoundsException |
||
| 1052 | * @since 11.0.0 |
||
| 1053 | * |
||
| 1054 | * Only one resolver shall be registered per type. Otherwise a |
||
| 1055 | * \OutOfBoundsException has to thrown. |
||
| 1056 | */ |
||
| 1057 | public function registerDisplayNameResolver($type, \Closure $closure) { |
||
| 1058 | if (!is_string($type)) { |
||
| 1059 | throw new \InvalidArgumentException('String expected.'); |
||
| 1060 | } |
||
| 1061 | if (isset($this->displayNameResolvers[$type])) { |
||
| 1062 | throw new \OutOfBoundsException('Displayname resolver for this type already registered'); |
||
| 1063 | } |
||
| 1064 | $this->displayNameResolvers[$type] = $closure; |
||
| 1065 | } |
||
| 1066 | |||
| 1067 | /** |
||
| 1068 | * resolves a given ID of a given Type to a display name. |
||
| 1069 | * |
||
| 1070 | * @param string $type |
||
| 1071 | * @param string $id |
||
| 1072 | * @return string |
||
| 1073 | * @throws \OutOfBoundsException |
||
| 1074 | * @since 11.0.0 |
||
| 1075 | * |
||
| 1076 | * If a provided type was not registered, an \OutOfBoundsException shall |
||
| 1077 | * be thrown. It is upon the resolver discretion what to return of the |
||
| 1078 | * provided ID is unknown. It must be ensured that a string is returned. |
||
| 1079 | */ |
||
| 1080 | public function resolveDisplayName($type, $id) { |
||
| 1081 | if (!is_string($type)) { |
||
| 1082 | throw new \InvalidArgumentException('String expected.'); |
||
| 1083 | } |
||
| 1084 | if (!isset($this->displayNameResolvers[$type])) { |
||
| 1085 | throw new \OutOfBoundsException('No Displayname resolver for this type registered'); |
||
| 1086 | } |
||
| 1087 | return (string)$this->displayNameResolvers[$type]($id); |
||
| 1088 | } |
||
| 1089 | |||
| 1090 | /** |
||
| 1091 | * returns valid, registered entities |
||
| 1092 | * |
||
| 1093 | * @return \OCP\Comments\ICommentsEventHandler[] |
||
| 1094 | */ |
||
| 1095 | private function getEventHandlers() { |
||
| 1096 | if (!empty($this->eventHandlers)) { |
||
| 1097 | return $this->eventHandlers; |
||
| 1098 | } |
||
| 1099 | |||
| 1100 | $this->eventHandlers = []; |
||
| 1101 | foreach ($this->eventHandlerClosures as $name => $closure) { |
||
| 1102 | $entity = $closure(); |
||
| 1103 | if (!($entity instanceof ICommentsEventHandler)) { |
||
| 1104 | throw new \InvalidArgumentException('The given entity does not implement the ICommentsEntity interface'); |
||
| 1105 | } |
||
| 1106 | $this->eventHandlers[$name] = $entity; |
||
| 1107 | } |
||
| 1108 | |||
| 1109 | return $this->eventHandlers; |
||
| 1110 | } |
||
| 1111 | |||
| 1112 | /** |
||
| 1113 | * sends notifications to the registered entities |
||
| 1114 | * |
||
| 1115 | * @param $eventType |
||
| 1116 | * @param IComment $comment |
||
| 1117 | */ |
||
| 1118 | private function sendEvent($eventType, IComment $comment) { |
||
| 1123 | } |
||
| 1124 | } |
||
| 1125 | } |
||
| 1126 |
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