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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2023 (original work) Open Assessment Technologies SA ; |
| 19 | */ |
| 20 | |
| 21 | declare(strict_types=1); |
| 22 | |
| 23 | use oat\generis\model\data\event\ClassPropertyCreatedEvent; |
| 24 | use oat\generis\model\GenerisRdf; |
| 25 | use oat\generis\model\kernel\persistence\Filter; |
| 26 | use oat\generis\model\kernel\uri\UriProvider; |
| 27 | use oat\generis\model\OntologyRdf; |
| 28 | use oat\generis\model\OntologyRdfs; |
| 29 | use oat\oatbox\event\EventManagerAwareTrait; |
| 30 | use oat\search\helper\SupportedOperatorHelper; |
| 31 | use oat\search\QueryBuilder; |
| 32 | use WikibaseSolutions\CypherDSL\Query; |
| 33 | |
| 34 | use function WikibaseSolutions\CypherDSL\node; |
| 35 | use function WikibaseSolutions\CypherDSL\parameter; |
| 36 | use function WikibaseSolutions\CypherDSL\procedure; |
| 37 | use function WikibaseSolutions\CypherDSL\query; |
| 38 | use function WikibaseSolutions\CypherDSL\variable; |
| 39 | |
| 40 | class core_kernel_persistence_starsql_Class extends core_kernel_persistence_starsql_Resource implements |
| 41 | core_kernel_persistence_ClassInterface |
| 42 | { |
| 43 | use EventManagerAwareTrait; |
| 44 | |
| 45 | public function getSubClasses(core_kernel_classes_Class $resource, $recursive = false) |
| 46 | { |
| 47 | $uri = $resource->getUri(); |
| 48 | $relationship = OntologyRdfs::RDFS_SUBCLASSOF; |
| 49 | if (!empty($recursive)) { |
| 50 | $query = <<<CYPHER |
| 51 | MATCH (startNode:Resource {uri: \$uri}) |
| 52 | MATCH (descendantNode)-[:`{$relationship}`*]->(startNode) |
| 53 | RETURN descendantNode.uri |
| 54 | CYPHER; |
| 55 | } else { |
| 56 | $query = <<<CYPHER |
| 57 | MATCH (startNode:Resource {uri: \$uri}) |
| 58 | MATCH (descendantNode)-[:`{$relationship}`]->(startNode) |
| 59 | RETURN descendantNode.uri |
| 60 | CYPHER; |
| 61 | } |
| 62 | |
| 63 | // \common_Logger::i('getSubClasses(): ' . var_export($query, true)); |
| 64 | $results = $this->getPersistence()->run($query, ['uri' => $uri]); |
| 65 | $returnValue = []; |
| 66 | foreach ($results as $result) { |
| 67 | $uri = $result->current(); |
| 68 | if (!$uri) { |
| 69 | continue; |
| 70 | } |
| 71 | $subClass = $this->getModel()->getClass($uri); |
| 72 | $returnValue[$subClass->getUri()] = $subClass ; |
| 73 | } |
| 74 | |
| 75 | return $returnValue; |
| 76 | } |
| 77 | |
| 78 | public function isSubClassOf(core_kernel_classes_Class $resource, core_kernel_classes_Class $parentClass) |
| 79 | { |
| 80 | // @TODO would it be worth it to check direct relationship of node:IS_SUBCLASS_OF? |
| 81 | $parentSubClasses = $parentClass->getSubClasses(true); |
| 82 | foreach ($parentSubClasses as $subClass) { |
| 83 | if ($subClass->getUri() === $resource->getUri()) { |
| 84 | return true; |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | return false; |
| 89 | } |
| 90 | |
| 91 | public function getParentClasses(core_kernel_classes_Class $resource, $recursive = false) |
| 92 | { |
| 93 | $uri = $resource->getUri(); |
| 94 | $relationship = OntologyRdfs::RDFS_SUBCLASSOF; |
| 95 | if (!empty($recursive)) { |
| 96 | $query = <<<CYPHER |
| 97 | MATCH (startNode:Resource {uri: \$uri}) |
| 98 | MATCH (startNode)-[:`{$relationship}`*]->(ancestorNode) |
| 99 | RETURN ancestorNode.uri |
| 100 | CYPHER; |
| 101 | } else { |
| 102 | $query = <<<CYPHER |
| 103 | MATCH (startNode:Resource {uri: \$uri}) |
| 104 | MATCH (startNode)-[:`{$relationship}`]->(ancestorNode) |
| 105 | RETURN ancestorNode.uri |
| 106 | CYPHER; |
| 107 | } |
| 108 | |
| 109 | $results = $this->getPersistence()->run($query, ['uri' => $uri]); |
| 110 | $returnValue = []; |
| 111 | foreach ($results as $result) { |
| 112 | $uri = $result->current(); |
| 113 | $parentClass = $this->getModel()->getClass($uri); |
| 114 | $returnValue[$parentClass->getUri()] = $parentClass ; |
| 115 | } |
| 116 | |
| 117 | return $returnValue; |
| 118 | } |
| 119 | |
| 120 | public function getProperties(core_kernel_classes_Class $resource, $recursive = false) |
| 121 | { |
| 122 | $uri = $resource->getUri(); |
| 123 | $relationship = OntologyRdfs::RDFS_DOMAIN; |
| 124 | $query = <<<CYPHER |
| 125 | MATCH (startNode:Resource {uri: \$uri}) |
| 126 | MATCH (descendantNode)-[:`{$relationship}`]->(startNode) |
| 127 | RETURN descendantNode.uri |
| 128 | CYPHER; |
| 129 | $results = $this->getPersistence()->run($query, ['uri' => $uri]); |
| 130 | $returnValue = []; |
| 131 | foreach ($results as $result) { |
| 132 | $uri = $result->current(); |
| 133 | if (!$uri) { |
| 134 | continue; |
| 135 | } |
| 136 | $property = $this->getModel()->getProperty($uri); |
| 137 | $returnValue[$property->getUri()] = $property; |
| 138 | } |
| 139 | |
| 140 | if ($recursive == true) { |
| 141 | $parentClasses = $this->getParentClasses($resource, true); |
| 142 | foreach ($parentClasses as $parent) { |
| 143 | if ($parent->getUri() != OntologyRdfs::RDFS_CLASS) { |
| 144 | $returnValue = array_merge($returnValue, $parent->getProperties(false)); |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | return $returnValue; |
| 150 | } |
| 151 | |
| 152 | public function getInstances(core_kernel_classes_Class $resource, $recursive = false, $params = []) |
| 153 | { |
| 154 | $returnValue = []; |
| 155 | |
| 156 | $params = array_merge($params, ['like' => false, 'recursive' => $recursive]); |
| 157 | |
| 158 | $search = $this->getModel()->getSearchInterface(); |
| 159 | $query = $this->getFilterQuery($search->query(), $resource, [], $params); |
| 160 | |
| 161 | $resultList = $search->getGateway()->search($query); |
| 162 | foreach ($resultList as $resource) { |
| 163 | $returnValue[$resource->getUri()] = $resource; |
| 164 | } |
| 165 | |
| 166 | return $returnValue; |
| 167 | } |
| 168 | |
| 169 | /** |
| 170 | * @deprecated |
| 171 | */ |
| 172 | public function setInstance(core_kernel_classes_Class $resource, core_kernel_classes_Resource $instance) |
| 173 | { |
| 174 | throw new common_exception_DeprecatedApiMethod(__METHOD__ . ' is deprecated. '); |
| 175 | } |
| 176 | |
| 177 | public function setSubClassOf(core_kernel_classes_Class $resource, core_kernel_classes_Class $iClass): bool |
| 178 | { |
| 179 | $subClassOf = $this->getModel()->getProperty(OntologyRdfs::RDFS_SUBCLASSOF); |
| 180 | $returnValue = $this->setPropertyValue($resource, $subClassOf, $iClass->getUri()); |
| 181 | |
| 182 | return (bool) $returnValue; |
| 183 | } |
| 184 | |
| 185 | /** |
| 186 | * @deprecated |
| 187 | */ |
| 188 | public function setProperty(core_kernel_classes_Class $resource, core_kernel_classes_Property $property) |
| 189 | { |
| 190 | throw new common_exception_DeprecatedApiMethod(__METHOD__ . ' is deprecated. '); |
| 191 | } |
| 192 | |
| 193 | public function createInstance(core_kernel_classes_Class $resource, $label = '', $comment = '', $uri = '') |
| 194 | { |
| 195 | if ($uri == '') { |
| 196 | $subject = $this->getServiceLocator()->get(UriProvider::SERVICE_ID)->provide(); |
| 197 | } elseif ($uri[0] == '#') { //$uri should start with # and be well formed |
| 198 | $modelUri = common_ext_NamespaceManager::singleton()->getLocalNamespace()->getUri(); |
| 199 | $subject = rtrim($modelUri, '#') . $uri; |
| 200 | } else { |
| 201 | $subject = $uri; |
| 202 | } |
| 203 | |
| 204 | $session = $this->getServiceLocator()->get(\oat\oatbox\session\SessionService::SERVICE_ID)->getCurrentSession(); |
| 205 | $sessionLanguage = $this->getDataLanguage(); |
| 206 | $node = node()->addProperty('uri', $uriParameter = parameter()) |
| 207 | ->addLabel('Resource'); |
| 208 | if (!empty($label)) { |
| 209 | $node->addProperty(OntologyRdfs::RDFS_LABEL, [$label . '@' . $sessionLanguage]); |
| 210 | } |
| 211 | if (!empty($comment)) { |
| 212 | $node->addProperty(OntologyRdfs::RDFS_COMMENT, [$comment . '@' . $sessionLanguage]); |
| 213 | } |
| 214 | |
| 215 | $node->addProperty( |
| 216 | 'http://www.tao.lu/Ontologies/TAO.rdf#UpdatedBy', |
| 217 | (string)$session->getUser()->getIdentifier() |
| 218 | ); |
| 219 | $node->addProperty( |
| 220 | 'http://www.tao.lu/Ontologies/TAO.rdf#UpdatedAt', |
| 221 | procedure()::raw('timestamp') |
| 222 | ); |
| 223 | |
| 224 | $nodeForRelationship = node()->withVariable($variableForRelatedResource = variable()); |
| 225 | $relatedResource = node('Resource') |
| 226 | ->withProperties(['uri' => $relatedUri = parameter()]) |
| 227 | ->withVariable($variableForRelatedResource); |
| 228 | $node = $node->relationshipTo($nodeForRelationship, OntologyRdf::RDF_TYPE); |
| 229 | |
| 230 | $query = query() |
| 231 | ->match($relatedResource) |
| 232 | ->create($node); |
| 233 | $this->getPersistence()->run( |
| 234 | $query->build(), |
| 235 | [$uriParameter->getParameter() => $subject, $relatedUri->getParameter() => $resource->getUri()] |
| 236 | ); |
| 237 | |
| 238 | return $this->getModel()->getResource($subject); |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * (non-PHPdoc) |
| 243 | * @see core_kernel_persistence_ClassInterface::createSubClass() |
| 244 | */ |
| 245 | public function createSubClass(core_kernel_classes_Class $resource, $label = '', $comment = '', $uri = '') |
| 246 | { |
| 247 | if (!empty($uri)) { |
| 248 | common_Logger::w('Use of parameter uri in ' . __METHOD__ . ' is deprecated'); |
| 249 | } |
| 250 | $uri = empty($uri) ? $this->getServiceLocator()->get(UriProvider::SERVICE_ID)->provide() : $uri; |
| 251 | $returnValue = $this->getModel()->getClass($uri); |
| 252 | $properties = [ |
| 253 | OntologyRdfs::RDFS_SUBCLASSOF => $resource, |
| 254 | ]; |
| 255 | if (!empty($label)) { |
| 256 | $properties[OntologyRdfs::RDFS_LABEL] = $label; |
| 257 | } |
| 258 | if (!empty($comment)) { |
| 259 | $properties[OntologyRdfs::RDFS_COMMENT] = $comment; |
| 260 | } |
| 261 | |
| 262 | $returnValue->setPropertiesValues($properties); |
| 263 | return $returnValue; |
| 264 | } |
| 265 | |
| 266 | public function createProperty( |
| 267 | core_kernel_classes_Class $resource, |
| 268 | $label = '', |
| 269 | $comment = '', |
| 270 | $isLgDependent = false |
| 271 | ) { |
| 272 | $returnValue = null; |
| 273 | |
| 274 | $propertyClass = $this->getModel()->getClass(OntologyRdf::RDF_PROPERTY); |
| 275 | $properties = [ |
| 276 | OntologyRdfs::RDFS_DOMAIN => $resource->getUri(), |
| 277 | GenerisRdf::PROPERTY_IS_LG_DEPENDENT => ((bool)$isLgDependent) |
| 278 | ? GenerisRdf::GENERIS_TRUE |
| 279 | : GenerisRdf::GENERIS_FALSE, |
| 280 | ]; |
| 281 | if (!empty($label)) { |
| 282 | $properties[OntologyRdfs::RDFS_LABEL] = $label; |
| 283 | } |
| 284 | if (!empty($comment)) { |
| 285 | $properties[OntologyRdfs::RDFS_COMMENT] = $comment; |
| 286 | } |
| 287 | $propertyInstance = $propertyClass->createInstanceWithProperties($properties); |
| 288 | |
| 289 | $returnValue = $this->getModel()->getProperty($propertyInstance->getUri()); |
| 290 | |
| 291 | $this->getEventManager()->trigger( |
| 292 | new ClassPropertyCreatedEvent( |
| 293 | $resource, |
| 294 | [ |
| 295 | 'propertyUri' => $propertyInstance->getUri(), |
| 296 | 'propertyLabel' => $propertyInstance->getLabel(), |
| 297 | ] |
| 298 | ) |
| 299 | ); |
| 300 | |
| 301 | return $returnValue; |
| 302 | } |
| 303 | |
| 304 | /** |
| 305 | * @deprecated |
| 306 | */ |
| 307 | public function searchInstances(core_kernel_classes_Class $resource, $propertyFilters = [], $options = []) |
| 308 | { |
| 309 | $returnValue = []; |
| 310 | |
| 311 | $search = $this->getModel()->getSearchInterface(); |
| 312 | $query = $this->getFilterQuery($search->query(), $resource, $propertyFilters, $options); |
| 313 | $resultList = $search->getGateway()->search($query); |
| 314 | |
| 315 | foreach ($resultList as $resource) { |
| 316 | $returnValue[$resource->getUri()] = $resource; |
| 317 | } |
| 318 | |
| 319 | return $returnValue; |
| 320 | } |
| 321 | |
| 322 | public function countInstances( |
| 323 | core_kernel_classes_Class $resource, |
| 324 | $propertyFilters = [], |
| 325 | $options = [] |
| 326 | ) { |
| 327 | $search = $this->getModel()->getSearchInterface(); |
| 328 | $query = $this->getFilterQuery($search->query(), $resource, $propertyFilters, $options); |
| 329 | |
| 330 | return $search->getGateway()->count($query); |
| 331 | } |
| 332 | |
| 333 | public function getInstancesPropertyValues( |
| 334 | core_kernel_classes_Class $resource, |
| 335 | core_kernel_classes_Property $property, |
| 336 | $propertyFilters = [], |
| 337 | $options = [] |
| 338 | ) { |
| 339 | $search = $this->getModel()->getSearchInterface(); |
| 340 | $query = $this->getFilterQuery($search->query(), $resource, $propertyFilters, $options); |
| 341 | |
| 342 | $resultSet = $search->getGateway()->searchTriples($query, $property->getUri(), $options['distinct'] ?? false); |
| 343 | |
| 344 | $valueList = []; |
| 345 | /** @var core_kernel_classes_Triple $triple */ |
| 346 | foreach ($resultSet as $triple) { |
| 347 | $valueList[] = common_Utils::toResource($triple->object); |
| 348 | } |
| 349 | |
| 350 | return $valueList; |
| 351 | } |
| 352 | |
| 353 | /** |
| 354 | * @deprecated |
| 355 | */ |
| 356 | public function unsetProperty(core_kernel_classes_Class $resource, core_kernel_classes_Property $property) |
| 357 | { |
| 358 | throw new common_exception_DeprecatedApiMethod(__METHOD__ . ' is deprecated. '); |
| 359 | } |
| 360 | |
| 361 | public function createInstanceWithProperties(core_kernel_classes_Class $type, $properties) |
| 362 | { |
| 363 | if (isset($properties[OntologyRdf::RDF_TYPE])) { |
| 364 | throw new core_kernel_persistence_Exception( |
| 365 | 'Additional types in createInstanceWithProperties not permitted' |
| 366 | ); |
| 367 | } |
| 368 | |
| 369 | $properties[OntologyRdf::RDF_TYPE] = $type; |
| 370 | $returnValue = $this->getModel()->getResource( |
| 371 | $this->getServiceLocator()->get(UriProvider::SERVICE_ID)->provide() |
| 372 | ); |
| 373 | $returnValue->setPropertiesValues($properties); |
| 374 | |
| 375 | return $returnValue; |
| 376 | } |
| 377 | |
| 378 | public function deleteInstances(core_kernel_classes_Class $resource, $resources, $deleteReference = false) |
| 379 | { |
| 380 | //TODO: We need to figure out if commented checks below is still correct. |
| 381 | // $class = $this->getModel()->getClass($resource->getUri()); |
| 382 | // if (!$class->exists() || empty($resources)) { |
| 383 | if (empty($resources)) { |
| 384 | return false; |
| 385 | } |
| 386 | |
| 387 | $uris = []; |
| 388 | foreach ($resources as $r) { |
| 389 | $uri = (($r instanceof core_kernel_classes_Resource) ? $r->getUri() : $r); |
| 390 | $uris[] = $uri; |
| 391 | } |
| 392 | |
| 393 | $node = Query::node('Resource'); |
| 394 | $query = Query::new() |
| 395 | ->match($node) |
| 396 | ->where($node->property('uri')->in($uris)) |
| 397 | ->delete($node, $deleteReference); |
| 398 | |
| 399 | $this->getPersistence()->run($query->build()); |
| 400 | |
| 401 | return true; |
| 402 | } |
| 403 | |
| 404 | private function getFilterQuery( |
| 405 | QueryBuilder $query, |
| 406 | core_kernel_classes_Class $resource, |
| 407 | array $propertyFilters = [], |
| 408 | array $options = [] |
| 409 | ): QueryBuilder { |
| 410 | $queryOptions = $query->getOptions(); |
| 411 | |
| 412 | $queryOptions = array_merge( |
| 413 | $queryOptions, |
| 414 | $this->getClassFilter($options, $resource, $queryOptions), |
| 415 | [ |
| 416 | 'language' => $options['lang'] ?? '', |
| 417 | ] |
| 418 | ); |
| 419 | |
| 420 | $query->setOptions($queryOptions); |
| 421 | |
| 422 | $order = $options['order'] ?? ''; |
| 423 | if (!empty($order)) { |
| 424 | $orderDir = $options['orderdir'] ?? 'ASC'; |
| 425 | $query->sort([$order => strtolower($orderDir)]); |
| 426 | } |
| 427 | $query |
| 428 | ->setLimit($options['limit'] ?? 0) |
| 429 | ->setOffset($options['offset'] ?? 0); |
| 430 | |
| 431 | |
| 432 | $this->addFilters($query, $propertyFilters, $options); |
| 433 | |
| 434 | return $query; |
| 435 | } |
| 436 | |
| 437 | /** |
| 438 | * @param QueryBuilder $query |
| 439 | * @param array $propertyFilters |
| 440 | * @param array $options |
| 441 | */ |
| 442 | private function addFilters(QueryBuilder $query, array $propertyFilters, array $options): void |
| 443 | { |
| 444 | $isLikeOperator = $options['like'] ?? true; |
| 445 | $and = (!isset($options['chaining']) || (strtolower($options['chaining']) === 'and')); |
| 446 | |
| 447 | $criteria = $query->newQuery(); |
| 448 | foreach ($propertyFilters as $filterProperty => $filterValue) { |
| 449 | if ($filterValue instanceof Filter) { |
| 450 | $propertyUri = $filterValue->getKey(); |
| 451 | $operator = $filterValue->getOperator(); |
| 452 | $mainValue = $filterValue->getValue(); |
| 453 | $extraValues = $filterValue->getOrConditionValues(); |
| 454 | } else { |
| 455 | $propertyUri = $filterProperty; |
| 456 | $operator = $isLikeOperator ? SupportedOperatorHelper::CONTAIN : SupportedOperatorHelper::EQUAL; |
| 457 | |
| 458 | if (is_array($filterValue) && !empty($filterValue)) { |
| 459 | $mainValue = array_shift($filterValue); |
| 460 | $extraValues = $filterValue; |
| 461 | } else { |
| 462 | $mainValue = $filterValue; |
| 463 | $extraValues = []; |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | $criteria->addCriterion( |
| 468 | $propertyUri, |
| 469 | $operator, |
| 470 | $mainValue |
| 471 | ); |
| 472 | |
| 473 | foreach ($extraValues as $value) { |
| 474 | $criteria->addOr($value); |
| 475 | } |
| 476 | |
| 477 | if (!$and) { |
| 478 | $query->setOr($criteria); |
| 479 | $criteria = $query->newQuery(); |
| 480 | } else { |
| 481 | $query->setCriteria($criteria); |
| 482 | } |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | /** |
| 487 | * @param array $options |
| 488 | * @param core_kernel_classes_Class $resource |
| 489 | * @param array $queryOptions |
| 490 | * |
| 491 | * @return array |
| 492 | */ |
| 493 | private function getClassFilter(array $options, core_kernel_classes_Class $resource, array $queryOptions): array |
| 494 | { |
| 495 | $rdftypes = []; |
| 496 | |
| 497 | if (isset($options['additionalClasses'])) { |
| 498 | foreach ($options['additionalClasses'] as $aC) { |
| 499 | $rdftypes[] = ($aC instanceof core_kernel_classes_Resource) ? $aC->getUri() : $aC; |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | $rdftypes = array_unique($rdftypes); |
| 504 | |
| 505 | $queryOptions['type'] = [ |
| 506 | 'resource' => $resource, |
| 507 | 'recursive' => $options['recursive'] ?? false, |
| 508 | 'extraClassUriList' => $rdftypes, |
| 509 | ]; |
| 510 | |
| 511 | return $queryOptions; |
| 512 | } |
| 513 | |
| 514 | public function updateUri(core_kernel_classes_Class $resource, string $newUri): void |
| 515 | { |
| 516 | $query = <<<CYPHER |
| 517 | MATCH (n:Resource {uri: \$original_uri}) |
| 518 | SET n.uri = \$uri |
| 519 | CYPHER; |
| 520 | |
| 521 | $this->getPersistence()->run($query, ['original_uri' => $resource->getUri(), 'uri' => $newUri]); |
| 522 | } |
| 523 | } |