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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) 2002-2008 (original work) Public Research Centre Henri Tudor & University of Luxembourg |
| 19 | * (under the project TAO & TAO2); |
| 20 | * 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung |
| 21 | * (under the project TAO-TRANSFER); |
| 22 | * 2009-2012 (update and modification) Public Research Centre Henri Tudor |
| 23 | * (under the project TAO-SUSTAIN & TAO-DEV); |
| 24 | * 2017 (update and modification) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
| 25 | */ |
| 26 | |
| 27 | use oat\generis\model\OntologyRdf; |
| 28 | use oat\generis\model\OntologyRdfs; |
| 29 | use oat\oatbox\session\SessionService; |
| 30 | use oat\oatbox\user\UserLanguageServiceInterface; |
| 31 | use oat\generis\model\kernel\uri\UriProvider; |
| 32 | use Zend\ServiceManager\ServiceLocatorInterface; |
| 33 | |
| 34 | /** |
| 35 | * Short description of class core_kernel_persistence_smoothsql_Resource |
| 36 | * |
| 37 | * @access public |
| 38 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 39 | * @package generis |
| 40 | |
| 41 | */ |
| 42 | class core_kernel_persistence_smoothsql_Resource implements core_kernel_persistence_ResourceInterface |
| 43 | { |
| 44 | /** |
| 45 | * @var core_kernel_persistence_smoothsql_SmoothModel |
| 46 | */ |
| 47 | private $model; |
| 48 | |
| 49 | public function __construct(core_kernel_persistence_smoothsql_SmoothModel $model) |
| 50 | { |
| 51 | $this->model = $model; |
| 52 | } |
| 53 | |
| 54 | protected function getModel() |
| 55 | { |
| 56 | return $this->model; |
| 57 | } |
| 58 | |
| 59 | /** |
| 60 | * @return common_persistence_SqlPersistence |
| 61 | */ |
| 62 | protected function getPersistence() |
| 63 | { |
| 64 | return $this->model->getPersistence(); |
| 65 | } |
| 66 | |
| 67 | protected function getModelReadSqlCondition() |
| 68 | { |
| 69 | return 'modelid IN (' . implode(',', $this->model->getReadableModels()) . ')'; |
| 70 | } |
| 71 | |
| 72 | protected function getModelWriteSqlCondition() |
| 73 | { |
| 74 | return 'modelid IN (' . implode(',', $this->model->getWritableModels()) . ')'; |
| 75 | } |
| 76 | |
| 77 | protected function getNewTripleModelId() |
| 78 | { |
| 79 | return $this->model->getNewTripleModelId(); |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * returns an array of types the resource has |
| 84 | * |
| 85 | * @access public |
| 86 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 87 | * @param core_kernel_classes_Resource resource |
| 88 | * @return array |
| 89 | */ |
| 90 | public function getTypes(core_kernel_classes_Resource $resource) |
| 91 | { |
| 92 | $returnValue = []; |
| 93 | |
| 94 | // TODO: refactor this to use a triple retrieving method. |
| 95 | $sqlQuery = 'SELECT object FROM statements WHERE subject = ? and predicate = ?'; |
| 96 | $sth = $this->getPersistence()->query($sqlQuery, [$resource->getUri(), OntologyRdf::RDF_TYPE]); |
| 97 | |
| 98 | while ($row = $sth->fetch()) { |
| 99 | $uri = $this->getPersistence()->getPlatForm()->getPhpTextValue($row['object']); |
| 100 | $returnValue[$uri] = $this->getModel()->getClass($uri); |
| 101 | } |
| 102 | |
| 103 | return (array) $returnValue; |
| 104 | } |
| 105 | |
| 106 | public function getParentClassesIds(string $resourceUri): array |
| 107 | { |
| 108 | $query = <<<'SQL' |
| 109 | WITH RECURSIVE statements_tree AS ( |
| 110 | SELECT |
| 111 | r.object |
| 112 | FROM statements r |
| 113 | WHERE r.subject = ? |
| 114 | AND r.predicate IN (?, ?) |
| 115 | AND r.object != ? |
| 116 | UNION ALL |
| 117 | SELECT |
| 118 | s.object |
| 119 | FROM statements s |
| 120 | JOIN statements_tree st |
| 121 | ON s.subject = st.object |
| 122 | AND s.predicate IN (?, ?) |
| 123 | AND s.object NOT IN (?, ?, ?, ?) |
| 124 | ) |
| 125 | SELECT object FROM statements_tree; |
| 126 | SQL; |
| 127 | |
| 128 | $statement = $this->getPersistence()->query( |
| 129 | $query, |
| 130 | [ |
| 131 | $resourceUri, |
| 132 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 133 | OntologyRdf::RDF_TYPE, |
| 134 | 'http://www.tao.lu/Ontologies/TAO.rdf#AssessmentContentObject', |
| 135 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 136 | OntologyRdf::RDF_TYPE, |
| 137 | 'http://www.tao.lu/Ontologies/TAO.rdf#AssessmentContentObject', |
| 138 | 'http://www.tao.lu/Ontologies/TAO.rdf#TAOObject', |
| 139 | 'http://www.tao.lu/Ontologies/generis.rdf#generis_Ressource', |
| 140 | 'http://www.w3.org/2000/01/rdf-schema#Resource', |
| 141 | ] |
| 142 | ); |
| 143 | |
| 144 | return array_column($statement->fetchAll(), 'object'); |
| 145 | } |
| 146 | |
| 147 | /** |
| 148 | * @param array $classIds |
| 149 | * @return array [ |
| 150 | * '{classUri}' => [ |
| 151 | * '{resourceUri_1}', |
| 152 | * '{resourceUri_N...}', |
| 153 | * ] |
| 154 | * ] |
| 155 | */ |
| 156 | public function getClassesResourceIds(array $classIds): array |
| 157 | { |
| 158 | if (empty($classIds)) { |
| 159 | return []; |
| 160 | } |
| 161 | |
| 162 | $query = sprintf( |
| 163 | 'SELECT subject, object FROM statements WHERE predicate IN (?, ?) AND object IN (%s)', |
| 164 | implode(',', array_fill(0, count($classIds), '?')) |
| 165 | ); |
| 166 | |
| 167 | $statement = $this->getPersistence()->query( |
| 168 | $query, |
| 169 | [ |
| 170 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 171 | OntologyRdf::RDF_TYPE, |
| 172 | ...$classIds, |
| 173 | ] |
| 174 | ); |
| 175 | |
| 176 | $results = $statement->fetchAll(); |
| 177 | $resourceIds = []; |
| 178 | |
| 179 | // Iterate over the provided class IDs to keep the same order |
| 180 | foreach ($classIds as $classId) { |
| 181 | $resources = array_filter($results, static fn (array $result): bool => $result['object'] === $classId); |
| 182 | $resourceIds[$classId] = array_column($resources, 'subject'); |
| 183 | } |
| 184 | |
| 185 | return $resourceIds; |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Returns a list of nested resources/classes under a resource |
| 190 | * |
| 191 | * @param string $classId |
| 192 | * @return array [ |
| 193 | * [ |
| 194 | * 'id' => '{resourceId}', |
| 195 | * 'isClass' => true|false, |
| 196 | * 'level' => 1..N, |
| 197 | * ] |
| 198 | * ] |
| 199 | */ |
| 200 | public function getNestedResources(string $classId): array |
| 201 | { |
| 202 | $query = <<<'SQL' |
| 203 | WITH RECURSIVE statements_tree AS ( |
| 204 | SELECT |
| 205 | r.subject, |
| 206 | r.predicate, |
| 207 | 1 as level |
| 208 | FROM statements r |
| 209 | WHERE r.subject = ? |
| 210 | AND r.predicate IN (?, ?) |
| 211 | UNION ALL |
| 212 | SELECT |
| 213 | s.subject, |
| 214 | s.predicate, |
| 215 | level + 1 |
| 216 | FROM statements s |
| 217 | JOIN statements_tree st |
| 218 | ON s.object = st.subject |
| 219 | WHERE s.predicate IN (?, ?) |
| 220 | ) |
| 221 | SELECT |
| 222 | subject as id, |
| 223 | CASE WHEN predicate = ? THEN 1 ELSE 0 END as isClass, |
| 224 | level |
| 225 | FROM statements_tree; |
| 226 | SQL; |
| 227 | |
| 228 | $statement = $this->getPersistence()->query( |
| 229 | $query, |
| 230 | [ |
| 231 | $classId, |
| 232 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 233 | OntologyRdf::RDF_TYPE, |
| 234 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 235 | OntologyRdf::RDF_TYPE, |
| 236 | OntologyRdfs::RDFS_SUBCLASSOF, |
| 237 | ] |
| 238 | ); |
| 239 | |
| 240 | return $statement->fetchAll(); |
| 241 | } |
| 242 | |
| 243 | /** |
| 244 | * Short description of method getPropertyValues |
| 245 | * |
| 246 | * @access public |
| 247 | * @param core_kernel_classes_Resource $resource |
| 248 | * @param core_kernel_classes_Property $property |
| 249 | * @param array $options |
| 250 | * @return array |
| 251 | * @throws core_kernel_persistence_Exception |
| 252 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 253 | */ |
| 254 | public function getPropertyValues( |
| 255 | core_kernel_classes_Resource $resource, |
| 256 | core_kernel_classes_Property $property, |
| 257 | $options = [] |
| 258 | ) { |
| 259 | $returnValue = []; |
| 260 | |
| 261 | $one = isset($options['one']) && $options['one'] == true ? true : false; |
| 262 | if (isset($options['last'])) { |
| 263 | throw new core_kernel_persistence_Exception('Option \'last\' no longer supported'); |
| 264 | } |
| 265 | $platform = $this->getPersistence()->getPlatForm(); |
| 266 | |
| 267 | // Define language if required |
| 268 | $defaultLg = ''; |
| 269 | if (isset($options['lg'])) { |
| 270 | $lang = $options['lg']; |
| 271 | } else { |
| 272 | $lang = $this->getDataLanguage(); |
| 273 | $default = $this->getServiceLocator()->get(UserLanguageServiceInterface::SERVICE_ID)->getDefaultLanguage(); |
| 274 | $defaultLg = ' OR l_language = ' . $this->getPersistence()->quote($default); |
| 275 | } |
| 276 | |
| 277 | // TODO: refactor this to use a triple retrieving method. |
| 278 | $query = 'SELECT object, l_language |
| 279 | FROM statements |
| 280 | WHERE subject = ? |
| 281 | AND predicate = ? |
| 282 | AND (l_language = ? OR l_language = ' . $this->getPersistence()->quote('') . $defaultLg . ') |
| 283 | AND ' . $this->getModelReadSqlCondition(); |
| 284 | |
| 285 | if ($one) { |
| 286 | // Select first |
| 287 | $query .= ' ORDER BY id DESC'; |
| 288 | $query = $platform->limitStatement($query, 1, 0); |
| 289 | $result = $this->getPersistence()->query($query, [$resource->getUri(), $property->getUri(), $lang]); |
| 290 | } else { |
| 291 | // Select All |
| 292 | $result = $this->getPersistence()->query($query, [$resource->getUri(), $property->getUri(), $lang]); |
| 293 | } |
| 294 | |
| 295 | // Treat the query result |
| 296 | if ($result == true) { |
| 297 | if (isset($options['lg'])) { |
| 298 | // If a language has been defined, do not filter result by language |
| 299 | while ($row = $result->fetch()) { |
| 300 | $returnValue[] = $this->getPersistence()->getPlatForm()->getPhpTextValue($row['object']); |
| 301 | } |
| 302 | } else { |
| 303 | // Filter result by language and return one set of values (User language in top priority, default |
| 304 | // language in second and the fallback language (null) in third) |
| 305 | $returnValue = core_kernel_persistence_smoothsql_Utils::filterByLanguage( |
| 306 | $this->getPersistence(), |
| 307 | $result->fetchAll(), |
| 308 | 'l_language', |
| 309 | $lang, |
| 310 | $default |
| 311 | ); |
| 312 | } |
| 313 | } |
| 314 | |
| 315 | return (array) $returnValue; |
| 316 | } |
| 317 | |
| 318 | /** |
| 319 | * Short description of method getPropertyValuesByLg |
| 320 | * |
| 321 | * @access public |
| 322 | * @param core_kernel_classes_Resource $resource |
| 323 | * @param core_kernel_classes_Property $property |
| 324 | * @param string $lg |
| 325 | * @return core_kernel_classes_ContainerCollection |
| 326 | * @throws core_kernel_persistence_Exception |
| 327 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 328 | */ |
| 329 | public function getPropertyValuesByLg( |
| 330 | core_kernel_classes_Resource $resource, |
| 331 | core_kernel_classes_Property $property, |
| 332 | $lg |
| 333 | ) { |
| 334 | $options = ['lg' => $lg]; |
| 335 | |
| 336 | $returnValue = new core_kernel_classes_ContainerCollection($resource); |
| 337 | foreach ($this->getPropertyValues($resource, $property, $options) as $value) { |
| 338 | $returnValue->add(common_Utils::toResource($value)); |
| 339 | } |
| 340 | |
| 341 | return $returnValue; |
| 342 | } |
| 343 | |
| 344 | /** |
| 345 | * Short description of method setPropertyValue |
| 346 | * |
| 347 | * @access public |
| 348 | * @param core_kernel_classes_Resource $resource |
| 349 | * @param core_kernel_classes_Property $property |
| 350 | * @param $object |
| 351 | * @param null $lg |
| 352 | * @return boolean |
| 353 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 354 | */ |
| 355 | public function setPropertyValue( |
| 356 | core_kernel_classes_Resource $resource, |
| 357 | core_kernel_classes_Property $property, |
| 358 | $object, |
| 359 | $lg = null |
| 360 | ) { |
| 361 | $object = $object instanceof core_kernel_classes_Resource ? $object->getUri() : (string) $object; |
| 362 | if ($property->isLgDependent()) { |
| 363 | $lang = ((null != $lg) |
| 364 | ? $lg |
| 365 | : $this->getDataLanguage()); |
| 366 | } else { |
| 367 | $lang = ''; |
| 368 | } |
| 369 | $triple = core_kernel_classes_Triple::createTriple( |
| 370 | $this->getNewTripleModelId(), |
| 371 | $resource->getUri(), |
| 372 | $property->getUri(), |
| 373 | $object, |
| 374 | $lang |
| 375 | ); |
| 376 | return $this->getModel()->getRdfInterface()->add($triple); |
| 377 | } |
| 378 | |
| 379 | /** |
| 380 | * Short description of method setPropertiesValues |
| 381 | * |
| 382 | * @access public |
| 383 | * @param core_kernel_classes_Resource $resource |
| 384 | * @param Resource resource |
| 385 | * @return boolean |
| 386 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 387 | */ |
| 388 | public function setPropertiesValues(core_kernel_classes_Resource $resource, $properties) |
| 389 | { |
| 390 | $returnValue = false; |
| 391 | $triples = []; |
| 392 | |
| 393 | if (is_array($properties) && count($properties) > 0) { |
| 394 | |
| 395 | /** @var common_session_Session $session */ |
| 396 | $session = $this->getServiceLocator()->get(SessionService::SERVICE_ID)->getCurrentSession(); |
| 397 | |
| 398 | $triples = $this->buildTrippleArray( |
| 399 | $resource, |
| 400 | $properties, |
| 401 | (string)$session->getUser()->getIdentifier(), |
| 402 | $session->getDataLanguage() |
| 403 | ); |
| 404 | } |
| 405 | |
| 406 | if (!empty($triples)) { |
| 407 | $this->getModel()->getRdfInterface()->addTripleCollection($triples); |
| 408 | $returnValue = true; |
| 409 | } |
| 410 | |
| 411 | return $returnValue; |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Short description of method setPropertyValueByLg |
| 416 | * |
| 417 | * @access public |
| 418 | * @param core_kernel_classes_Resource $resource |
| 419 | * @param core_kernel_classes_Property $property |
| 420 | * @param $value |
| 421 | * @param $lg |
| 422 | * @return boolean |
| 423 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 424 | */ |
| 425 | public function setPropertyValueByLg( |
| 426 | core_kernel_classes_Resource $resource, |
| 427 | core_kernel_classes_Property $property, |
| 428 | $value, |
| 429 | $lg |
| 430 | ) { |
| 431 | $triple = core_kernel_classes_Triple::createTriple( |
| 432 | $this->getNewTripleModelId(), |
| 433 | $resource->getUri(), |
| 434 | $property->getUri(), |
| 435 | $value, |
| 436 | ($property->isLgDependent() ? $lg : '') |
| 437 | ); |
| 438 | return $this->getModel()->getRdfInterface()->add($triple); |
| 439 | } |
| 440 | |
| 441 | /** |
| 442 | * Short description of method removePropertyValues |
| 443 | * |
| 444 | * @access public |
| 445 | * @param core_kernel_classes_Resource $resource |
| 446 | * @param core_kernel_classes_Property $property |
| 447 | * @param array options |
| 448 | * @return boolean |
| 449 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 450 | */ |
| 451 | public function removePropertyValues( |
| 452 | core_kernel_classes_Resource $resource, |
| 453 | core_kernel_classes_Property $property, |
| 454 | $options = [] |
| 455 | ) { |
| 456 | // Optional params |
| 457 | $pattern = isset($options['pattern']) && !is_null($options['pattern']) ? $options['pattern'] : null; |
| 458 | $like = isset($options['like']) && $options['like'] == true ? true : false; |
| 459 | |
| 460 | // TODO: refactor this to use a triple store abstraction |
| 461 | //build query: |
| 462 | $query = 'DELETE FROM statements WHERE subject = ? AND predicate = ?'; |
| 463 | $objectType = $this->getPersistence()->getPlatForm()->getObjectTypeCondition(); |
| 464 | $conditions = []; |
| 465 | if (is_string($pattern)) { |
| 466 | if (!is_null($pattern)) { |
| 467 | $searchPattern = core_kernel_persistence_smoothsql_Utils::buildSearchPattern( |
| 468 | $this->getPersistence(), |
| 469 | $pattern, |
| 470 | $like |
| 471 | ); |
| 472 | $conditions[] = '( ' . $objectType . ' ' . $searchPattern . ' )'; |
| 473 | } |
| 474 | } elseif (is_array($pattern)) { |
| 475 | if (count($pattern) > 0) { |
| 476 | $multiCondition = "( "; |
| 477 | foreach ($pattern as $i => $patternToken) { |
| 478 | $searchPattern = core_kernel_persistence_smoothsql_Utils::buildSearchPattern( |
| 479 | $this->getPersistence(), |
| 480 | $patternToken, |
| 481 | $like |
| 482 | ); |
| 483 | if ($i > 0) { |
| 484 | $multiCondition .= " OR "; |
| 485 | } |
| 486 | $multiCondition .= '(' . $objectType . ' ' . $searchPattern . ' )'; |
| 487 | } |
| 488 | $conditions[] = "{$multiCondition} ) "; |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | foreach ($conditions as $i => $additionalCondition) { |
| 493 | $query .= " AND ( {$additionalCondition} ) "; |
| 494 | } |
| 495 | |
| 496 | //be sure the property we try to remove is included in an updatable model |
| 497 | $query .= ' AND ' . $this->getModelWriteSqlCondition(); |
| 498 | |
| 499 | if ($property->isLgDependent()) { |
| 500 | $query .= ' AND (l_language = ? OR l_language = ?) '; |
| 501 | $returnValue = $this->getPersistence()->exec($query, [ |
| 502 | $resource->getUri(), |
| 503 | $property->getUri(), |
| 504 | '', |
| 505 | $this->getDataLanguage() |
| 506 | ]); |
| 507 | } else { |
| 508 | $returnValue = $this->getPersistence()->exec($query, [ |
| 509 | $resource->getUri(), |
| 510 | $property->getUri() |
| 511 | ]); |
| 512 | } |
| 513 | |
| 514 | if (!$returnValue) { |
| 515 | $returnValue = false; |
| 516 | } |
| 517 | |
| 518 | return (bool) $returnValue; |
| 519 | } |
| 520 | |
| 521 | /** |
| 522 | * Short description of method removePropertyValueByLg |
| 523 | * |
| 524 | * @access public |
| 525 | * @param core_kernel_classes_Resource $resource |
| 526 | * @param core_kernel_classes_Property $property |
| 527 | * @param Resource resource |
| 528 | * @param array $options |
| 529 | * @return boolean |
| 530 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 531 | */ |
| 532 | public function removePropertyValueByLg( |
| 533 | core_kernel_classes_Resource $resource, |
| 534 | core_kernel_classes_Property $property, |
| 535 | $lg, |
| 536 | $options = [] |
| 537 | ) { |
| 538 | $sqlQuery = 'DELETE FROM statements WHERE subject = ? and predicate = ? and l_language = ?'; |
| 539 | //be sure the property we try to remove is included in an updatable model |
| 540 | $sqlQuery .= ' AND ' . $this->getModelWriteSqlCondition(); |
| 541 | |
| 542 | $returnValue = $this->getPersistence()->exec($sqlQuery, [ |
| 543 | $resource->getUri(), |
| 544 | $property->getUri(), |
| 545 | ($property->isLgDependent() ? $lg : ''), |
| 546 | ]); |
| 547 | |
| 548 | if (!$returnValue) { |
| 549 | $returnValue = false; |
| 550 | } |
| 551 | |
| 552 | return (bool) $returnValue; |
| 553 | } |
| 554 | |
| 555 | /** |
| 556 | * returns the triples having as subject the current resource |
| 557 | * |
| 558 | * @access public |
| 559 | * @author Joel Bout, <joel@taotesting.com> |
| 560 | * @param core_kernel_classes_Resource resource |
| 561 | * @return core_kernel_classes_ContainerCollection |
| 562 | */ |
| 563 | public function getRdfTriples(core_kernel_classes_Resource $resource) |
| 564 | { |
| 565 | // TODO: refactor this to use a triple store abstraction |
| 566 | $query = 'SELECT * FROM statements WHERE subject = ? AND ' . $this->getModelReadSqlCondition() |
| 567 | . ' ORDER BY predicate'; |
| 568 | $result = $this->getPersistence()->query($query, [$resource->getUri()]); |
| 569 | |
| 570 | $returnValue = new core_kernel_classes_ContainerCollection(new common_Object(__METHOD__)); |
| 571 | while ($statement = $result->fetch()) { |
| 572 | $triple = new core_kernel_classes_Triple(); |
| 573 | $triple->modelid = $statement["modelid"]; |
| 574 | $triple->subject = $statement["subject"]; |
| 575 | $triple->predicate = $statement["predicate"]; |
| 576 | $triple->object = $statement["object"]; |
| 577 | $triple->id = $statement["id"]; |
| 578 | $triple->epoch = $statement["epoch"]; |
| 579 | $triple->lg = $statement["l_language"]; |
| 580 | $triple->author = $statement["author"]; |
| 581 | $returnValue->add($triple); |
| 582 | } |
| 583 | |
| 584 | return $returnValue; |
| 585 | } |
| 586 | |
| 587 | public function isWritable(core_kernel_classes_Resource $resource): bool |
| 588 | { |
| 589 | return $this->model->isWritable($resource); |
| 590 | } |
| 591 | |
| 592 | /** |
| 593 | * Short description of method getUsedLanguages |
| 594 | * |
| 595 | * @access public |
| 596 | * @param core_kernel_classes_Resource $resource |
| 597 | * @param core_kernel_classes_Property $property |
| 598 | * @return array |
| 599 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 600 | */ |
| 601 | public function getUsedLanguages(core_kernel_classes_Resource $resource, core_kernel_classes_Property $property) |
| 602 | { |
| 603 | $returnValue = []; |
| 604 | |
| 605 | $sqlQuery = 'SELECT l_language FROM statements WHERE subject = ? AND predicate = ? '; |
| 606 | $sqlResult = $this->getPersistence()->query($sqlQuery, [ |
| 607 | $resource->getUri(), |
| 608 | $property->getUri(), |
| 609 | ]); |
| 610 | while ($row = $sqlResult->fetch()) { |
| 611 | if (!empty($row['l_language'])) { |
| 612 | $returnValue[] = $row['l_language']; |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | return $returnValue; |
| 617 | } |
| 618 | |
| 619 | /** |
| 620 | * Short description of method duplicate |
| 621 | * |
| 622 | * @access public |
| 623 | * @param core_kernel_classes_Resource $resource |
| 624 | * @param array excludedProperties |
| 625 | * @return core_kernel_classes_Resource |
| 626 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 627 | */ |
| 628 | public function duplicate(core_kernel_classes_Resource $resource, $excludedProperties = []) |
| 629 | { |
| 630 | $returnValue = null; |
| 631 | $newUri = $this->getServiceLocator()->get(UriProvider::SERVICE_ID)->provide(); |
| 632 | $collection = $this->getRdfTriples($resource); |
| 633 | |
| 634 | if ($collection->count() > 0) { |
| 635 | $user = $this->getServiceLocator()->get(SessionService::SERVICE_ID)->getCurrentUser()->getIdentifier(); |
| 636 | $triples = []; |
| 637 | |
| 638 | foreach ($collection->getIterator() as $triple) { |
| 639 | if (!in_array($triple->predicate, $excludedProperties)) { |
| 640 | $triples[] = core_kernel_classes_Triple::createTriple( |
| 641 | $this->getNewTripleModelId(), |
| 642 | $newUri, |
| 643 | $triple->predicate, |
| 644 | ($triple->object == null) ? '' : $triple->object, |
| 645 | ($triple->lg == null) ? '' : $triple->lg, |
| 646 | (string)$user |
| 647 | ); |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | if (!empty($triples)) { |
| 652 | $this->getModel()->getRdfInterface()->addTripleCollection($triples); |
| 653 | $returnValue = $this->getModel()->getResource($newUri); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | return $returnValue; |
| 658 | } |
| 659 | |
| 660 | /** |
| 661 | * Short description of method delete |
| 662 | * |
| 663 | * @access public |
| 664 | * @param core_kernel_classes_Resource $resource |
| 665 | * @param boolean deleteReference |
| 666 | * @return boolean |
| 667 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 668 | */ |
| 669 | public function delete(core_kernel_classes_Resource $resource, $deleteReference = false) |
| 670 | { |
| 671 | $query = 'DELETE FROM statements WHERE subject = ? AND ' . $this->getModelWriteSqlCondition(); |
| 672 | $returnValue = $this->getPersistence()->exec($query, [$resource->getUri()]); |
| 673 | |
| 674 | //if no rows affected return false |
| 675 | if (!$returnValue) { |
| 676 | $returnValue = false; |
| 677 | } elseif ($deleteReference) { |
| 678 | $sqlQuery = 'DELETE FROM statements WHERE ' |
| 679 | . $this->getPersistence()->getPlatForm()->getObjectTypeCondition() . ' = ? AND ' |
| 680 | . $this->getModelWriteSqlCondition(); |
| 681 | $return = $this->getPersistence()->exec($sqlQuery, [$resource->getUri()]); |
| 682 | |
| 683 | if ($return !== false) { |
| 684 | $returnValue = true; |
| 685 | } |
| 686 | } |
| 687 | |
| 688 | return (bool) $returnValue; |
| 689 | } |
| 690 | |
| 691 | /** |
| 692 | * Short description of method getPropertiesValues |
| 693 | * |
| 694 | * @access public |
| 695 | * @param core_kernel_classes_Resource $resource |
| 696 | * @param Resource resource |
| 697 | * @return array |
| 698 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 699 | */ |
| 700 | public function getPropertiesValues(core_kernel_classes_Resource $resource, $properties) |
| 701 | { |
| 702 | $returnValue = []; |
| 703 | |
| 704 | // check whenever or not properties is empty |
| 705 | if (count($properties) == 0) { |
| 706 | return []; |
| 707 | } |
| 708 | |
| 709 | $predicatesQuery = ''; |
| 710 | //build the predicate query |
| 711 | //$predicatesQuery = implode(',', $properties); |
| 712 | foreach ($properties as $property) { |
| 713 | $uri = (is_string($property) ? $property : $property->getUri()); |
| 714 | $returnValue[$uri] = []; |
| 715 | $predicatesQuery .= ", " . $this->getPersistence()->quote($uri); |
| 716 | } |
| 717 | $predicatesQuery = substr($predicatesQuery, 1); |
| 718 | |
| 719 | $platform = $this->getPersistence()->getPlatForm(); |
| 720 | $lang = $this->getDataLanguage(); |
| 721 | $default = $this->getServiceLocator()->get(UserLanguageServiceInterface::SERVICE_ID)->getDefaultLanguage(); |
| 722 | |
| 723 | // TODO: refactor this to use a triple store abstraction |
| 724 | //the unique sql query |
| 725 | $query = 'SELECT predicate, object, l_language |
| 726 | FROM statements |
| 727 | WHERE |
| 728 | subject = ' . $this->getPersistence()->quote($resource->getUri()) . ' |
| 729 | AND predicate IN (' . $predicatesQuery . ') |
| 730 | AND (l_language = ' . $this->getPersistence()->quote('') . |
| 731 | ' OR l_language = ' . $this->getPersistence()->quote($default) . |
| 732 | ' OR l_language = ' . $this->getPersistence()->quote($lang) . ') |
| 733 | AND ' . $this->getModelReadSqlCondition(); |
| 734 | $result = $this->getPersistence()->query($query); |
| 735 | |
| 736 | $rows = $result->fetchAll(); |
| 737 | foreach ($rows as $row) { |
| 738 | $value = $platform->getPhpTextValue($row['object']); |
| 739 | $returnValue[$row['predicate']][] = common_Utils::isUri($value) |
| 740 | ? $this->getModel()->getResource($value) |
| 741 | : new core_kernel_classes_Literal($value); |
| 742 | } |
| 743 | |
| 744 | return (array) $returnValue; |
| 745 | } |
| 746 | |
| 747 | /** |
| 748 | * Short description of method setType |
| 749 | * |
| 750 | * @access public |
| 751 | * @param core_kernel_classes_Resource $resource |
| 752 | * @param core_kernel_classes_Class $class |
| 753 | * @return boolean |
| 754 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 755 | */ |
| 756 | public function setType(core_kernel_classes_Resource $resource, core_kernel_classes_Class $class) |
| 757 | { |
| 758 | return $this->setPropertyValue($resource, $this->getModel()->getProperty(OntologyRdf::RDF_TYPE), $class); |
| 759 | } |
| 760 | |
| 761 | /** |
| 762 | * Short description of method removeType |
| 763 | * |
| 764 | * @access public |
| 765 | * @param core_kernel_classes_Resource $resource |
| 766 | * @param core_kernel_classes_Class $class |
| 767 | * @return boolean |
| 768 | * @author Joel Bout, <joel.bout@tudor.lu> |
| 769 | */ |
| 770 | public function removeType(core_kernel_classes_Resource $resource, core_kernel_classes_Class $class) |
| 771 | { |
| 772 | $query = 'DELETE FROM statements WHERE subject = ? AND predicate = ? AND ' |
| 773 | . $this->getPersistence()->getPlatForm()->getObjectTypeCondition() . ' = ?'; |
| 774 | |
| 775 | //be sure the property we try to remove is included in an updatable model |
| 776 | $query .= ' AND ' . $this->getModelWriteSqlCondition(); |
| 777 | |
| 778 | $returnValue = $this->getPersistence()->exec($query, [ |
| 779 | $resource->getUri(), |
| 780 | OntologyRdf::RDF_TYPE, |
| 781 | $class->getUri() |
| 782 | ]); |
| 783 | |
| 784 | $returnValue = true; |
| 785 | |
| 786 | return $returnValue; |
| 787 | } |
| 788 | |
| 789 | /** |
| 790 | * @return ServiceLocatorInterface |
| 791 | */ |
| 792 | public function getServiceLocator() |
| 793 | { |
| 794 | return $this->getModel()->getServiceLocator(); |
| 795 | } |
| 796 | |
| 797 | /** |
| 798 | * @param core_kernel_classes_Resource $resource |
| 799 | * @param array $properties |
| 800 | * @param string $userIdentifier |
| 801 | * @param string $dataLanguage |
| 802 | * @return array |
| 803 | */ |
| 804 | private function buildTrippleArray( |
| 805 | core_kernel_classes_Resource $resource, |
| 806 | array $properties, |
| 807 | string $userIdentifier, |
| 808 | string $dataLanguage |
| 809 | ) { |
| 810 | $triples = []; |
| 811 | foreach ($properties as $propertyUri => $value) { |
| 812 | $property = $this->getModel()->getProperty($propertyUri); |
| 813 | |
| 814 | $lang = ($property->isLgDependent() ? $dataLanguage : ''); |
| 815 | |
| 816 | $formattedValues = $this->normalizePropertyValues($value); |
| 817 | |
| 818 | foreach ($formattedValues as $object) { |
| 819 | $triples[] = core_kernel_classes_Triple::createTriple( |
| 820 | $this->getNewTripleModelId(), |
| 821 | $resource->getUri(), |
| 822 | $property->getUri(), |
| 823 | $object, |
| 824 | $lang, |
| 825 | $userIdentifier |
| 826 | ); |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | return $triples; |
| 831 | } |
| 832 | |
| 833 | /** |
| 834 | * @param $value |
| 835 | * @param array $formattedValues |
| 836 | * @return array |
| 837 | */ |
| 838 | private function normalizePropertyValues($value) |
| 839 | { |
| 840 | $normalizedValues = []; |
| 841 | if ($value instanceof core_kernel_classes_Resource) { |
| 842 | $normalizedValues[] = $value->getUri(); |
| 843 | } elseif (is_array($value)) { |
| 844 | foreach ($value as $val) { |
| 845 | if ($val !== null) { |
| 846 | $normalizedValues[] = $val instanceof core_kernel_classes_Resource |
| 847 | ? $val->getUri() |
| 848 | : $val; |
| 849 | } |
| 850 | } |
| 851 | } else { |
| 852 | $normalizedValues[] = ($value == null) ? '' : $value; |
| 853 | } |
| 854 | return $normalizedValues; |
| 855 | } |
| 856 | |
| 857 | /** |
| 858 | * @return mixed |
| 859 | */ |
| 860 | private function getDataLanguage() |
| 861 | { |
| 862 | return $this->getServiceLocator()->get(SessionService::SERVICE_ID)->getCurrentSession()->getDataLanguage(); |
| 863 | } |
| 864 | } |