Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like LocationService 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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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 LocationService, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 43 | class LocationService implements LocationServiceInterface |
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| 44 | { |
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| 45 | /** |
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| 46 | * @var \eZ\Publish\Core\Repository\Repository |
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| 47 | */ |
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| 48 | protected $repository; |
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| 49 | |||
| 50 | /** |
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| 51 | * @var \eZ\Publish\SPI\Persistence\Handler |
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| 52 | */ |
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| 53 | protected $persistenceHandler; |
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| 54 | |||
| 55 | /** |
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| 56 | * @var array |
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| 57 | */ |
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| 58 | protected $settings; |
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| 59 | |||
| 60 | /** |
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| 61 | * @var \eZ\Publish\Core\Repository\Helper\DomainMapper |
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| 62 | */ |
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| 63 | protected $domainMapper; |
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| 64 | |||
| 65 | /** |
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| 66 | * @var \eZ\Publish\Core\Repository\Helper\NameSchemaService |
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| 67 | */ |
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| 68 | protected $nameSchemaService; |
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| 69 | |||
| 70 | /** |
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| 71 | * @var \eZ\Publish\API\Repository\PermissionCriterionResolver |
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| 72 | */ |
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| 73 | protected $permissionCriterionResolver; |
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| 74 | |||
| 75 | /** |
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| 76 | * @var \Psr\Log\LoggerInterface |
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| 77 | */ |
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| 78 | private $logger; |
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| 79 | |||
| 80 | /** |
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| 81 | * Setups service with reference to repository object that created it & corresponding handler. |
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| 82 | * |
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| 83 | * @param \eZ\Publish\API\Repository\Repository $repository |
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| 84 | * @param \eZ\Publish\SPI\Persistence\Handler $handler |
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| 85 | * @param \eZ\Publish\Core\Repository\Helper\DomainMapper $domainMapper |
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| 86 | * @param \eZ\Publish\Core\Repository\Helper\NameSchemaService $nameSchemaService |
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| 87 | * @param \eZ\Publish\API\Repository\PermissionCriterionResolver $permissionCriterionResolver |
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| 88 | * @param array $settings |
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| 89 | * @param \Psr\Log\LoggerInterface|null $logger |
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| 90 | */ |
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| 91 | public function __construct( |
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| 111 | |||
| 112 | /** |
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| 113 | * Copies the subtree starting from $subtree as a new subtree of $targetLocation. |
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| 114 | * |
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| 115 | * Only the items on which the user has read access are copied. |
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| 116 | * |
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| 117 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed copy the subtree to the given parent location |
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| 118 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user does not have read access to the whole source subtree |
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| 119 | * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if the target location is a sub location of the given location |
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| 120 | * |
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| 121 | * @param \eZ\Publish\API\Repository\Values\Content\Location $subtree - the subtree denoted by the location to copy |
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| 122 | * @param \eZ\Publish\API\Repository\Values\Content\Location $targetParentLocation - the target parent location for the copy operation |
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| 123 | * |
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| 124 | * @return \eZ\Publish\API\Repository\Values\Content\Location The newly created location of the copied subtree |
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| 125 | */ |
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| 126 | public function copySubtree(APILocation $subtree, APILocation $targetParentLocation) |
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| 127 | { |
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| 128 | $loadedSubtree = $this->loadLocation($subtree->id); |
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| 129 | $loadedTargetLocation = $this->loadLocation($targetParentLocation->id); |
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| 130 | |||
| 131 | if (stripos($loadedTargetLocation->pathString, $loadedSubtree->pathString) !== false) { |
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| 132 | throw new InvalidArgumentException('targetParentLocation', 'target parent location is a sub location of the given subtree'); |
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| 133 | } |
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| 134 | |||
| 135 | // check create permission on target |
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| 136 | if (!$this->repository->canUser('content', 'create', $loadedSubtree->getContentInfo(), $loadedTargetLocation)) { |
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| 137 | throw new UnauthorizedException('content', 'create', ['locationId' => $loadedTargetLocation->id]); |
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| 138 | } |
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| 139 | |||
| 140 | /** Check read access to whole source subtree |
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| 141 | * @var bool|\eZ\Publish\API\Repository\Values\Content\Query\Criterion |
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| 142 | */ |
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| 143 | $contentReadCriterion = $this->permissionCriterionResolver->getPermissionsCriterion(); |
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| 144 | View Code Duplication | if ($contentReadCriterion === false) { |
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| 145 | throw new UnauthorizedException('content', 'read'); |
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| 146 | } elseif ($contentReadCriterion !== true) { |
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| 147 | // Query if there are any content in subtree current user don't have access to |
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| 148 | $query = new Query( |
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| 149 | array( |
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| 150 | 'limit' => 0, |
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| 151 | 'filter' => new CriterionLogicalAnd( |
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| 152 | array( |
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| 153 | new CriterionSubtree($loadedSubtree->pathString), |
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| 154 | new CriterionLogicalNot($contentReadCriterion), |
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| 155 | ) |
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| 156 | ), |
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| 157 | ) |
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| 158 | ); |
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| 159 | $result = $this->repository->getSearchService()->findContent($query, array(), false); |
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| 160 | if ($result->totalCount > 0) { |
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| 161 | throw new UnauthorizedException('content', 'read'); |
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| 162 | } |
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| 163 | } |
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| 164 | |||
| 165 | $this->repository->beginTransaction(); |
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| 166 | try { |
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| 167 | $newLocation = $this->persistenceHandler->locationHandler()->copySubtree( |
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| 168 | $loadedSubtree->id, |
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| 169 | $loadedTargetLocation->id, |
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| 170 | $this->repository->getPermissionResolver()->getCurrentUserReference()->getUserId() |
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| 171 | ); |
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| 172 | |||
| 173 | $content = $this->repository->getContentService()->loadContent($newLocation->contentId); |
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| 174 | $urlAliasNames = $this->nameSchemaService->resolveUrlAliasSchema($content); |
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| 175 | View Code Duplication | foreach ($urlAliasNames as $languageCode => $name) { |
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| 176 | $this->persistenceHandler->urlAliasHandler()->publishUrlAliasForLocation( |
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| 177 | $newLocation->id, |
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| 178 | $loadedTargetLocation->id, |
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| 179 | $name, |
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| 180 | $languageCode, |
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| 181 | $content->contentInfo->alwaysAvailable |
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| 182 | ); |
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| 183 | } |
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| 184 | |||
| 185 | $this->persistenceHandler->urlAliasHandler()->locationCopied( |
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| 186 | $loadedSubtree->id, |
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| 187 | $newLocation->id, |
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| 188 | $loadedTargetLocation->id |
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| 189 | ); |
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| 190 | |||
| 191 | $this->repository->commit(); |
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| 192 | } catch (Exception $e) { |
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| 193 | $this->repository->rollback(); |
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| 194 | throw $e; |
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| 195 | } |
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| 196 | |||
| 197 | return $this->domainMapper->buildLocationDomainObject($newLocation); |
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| 198 | } |
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| 199 | |||
| 200 | /** |
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| 201 | * Loads a location object from its $locationId. |
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| 202 | * |
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| 203 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to read this location |
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| 204 | * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If the specified location is not found |
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| 205 | * |
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| 206 | * @param mixed $locationId |
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| 207 | * |
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| 208 | * @return \eZ\Publish\API\Repository\Values\Content\Location |
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| 209 | */ |
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| 210 | public function loadLocation($locationId) |
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| 220 | |||
| 221 | /** |
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| 222 | * Loads a location object from its $remoteId. |
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| 223 | * |
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| 224 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to read this location |
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| 225 | * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException If more than one location with same remote ID was found |
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| 226 | * @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If the specified location is not found |
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| 227 | * |
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| 228 | * @param string $remoteId |
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| 229 | * |
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| 230 | * @return \eZ\Publish\API\Repository\Values\Content\Location |
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| 231 | */ |
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| 232 | public function loadLocationByRemoteId($remoteId) |
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| 246 | |||
| 247 | /** |
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| 248 | * {@inheritdoc} |
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| 249 | */ |
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| 250 | public function loadLocations(ContentInfo $contentInfo, APILocation $rootLocation = null) |
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| 251 | { |
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| 252 | if (!$contentInfo->published) { |
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| 253 | throw new BadStateException('$contentInfo', 'ContentInfo has no published versions'); |
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| 254 | } |
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| 255 | |||
| 256 | $spiLocations = $this->persistenceHandler->locationHandler()->loadLocationsByContent( |
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| 257 | $contentInfo->id, |
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| 258 | $rootLocation !== null ? $rootLocation->id : null |
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| 259 | ); |
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| 260 | |||
| 261 | $locations = []; |
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| 262 | foreach ($spiLocations as $spiLocation) { |
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| 263 | $location = $this->domainMapper->buildLocationDomainObject($spiLocation); |
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| 264 | if ($this->repository->canUser('content', 'read', $location->getContentInfo(), $location)) { |
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| 265 | $locations[] = $location; |
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| 266 | } |
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| 267 | } |
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| 268 | |||
| 269 | return $locations; |
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| 270 | } |
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| 271 | |||
| 272 | /** |
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| 273 | * Loads children which are readable by the current user of a location object sorted by sortField and sortOrder. |
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| 274 | * |
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| 275 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 276 | * @param int $offset the start offset for paging |
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| 277 | * @param int $limit the number of locations returned |
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| 278 | * |
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| 279 | * @return \eZ\Publish\API\Repository\Values\Content\LocationList |
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| 280 | */ |
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| 281 | public function loadLocationChildren(APILocation $location, $offset = 0, $limit = 25) |
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| 312 | |||
| 313 | /** |
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| 314 | * Returns the number of children which are readable by the current user of a location object. |
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| 315 | * |
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| 316 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 317 | * |
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| 318 | * @return int |
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| 319 | */ |
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| 320 | public function getLocationChildCount(APILocation $location) |
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| 326 | |||
| 327 | /** |
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| 328 | * Searches children locations of the provided parent location id. |
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| 329 | * |
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| 330 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 331 | * @param int $offset |
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| 332 | * @param int $limit |
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| 333 | * |
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| 334 | * @return \eZ\Publish\API\Repository\Values\Content\Search\SearchResult |
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| 335 | */ |
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| 336 | protected function searchChildrenLocations(APILocation $location, $offset = 0, $limit = -1) |
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| 347 | |||
| 348 | /** |
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| 349 | * Creates the new $location in the content repository for the given content. |
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| 350 | * |
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| 351 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to create this location |
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| 352 | * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if the content is already below the specified parent |
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| 353 | * or the parent is a sub location of the location of the content |
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| 354 | * or if set the remoteId exists already |
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| 355 | * |
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| 356 | * @param \eZ\Publish\API\Repository\Values\Content\ContentInfo $contentInfo |
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| 357 | * @param \eZ\Publish\API\Repository\Values\Content\LocationCreateStruct $locationCreateStruct |
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| 358 | * |
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| 359 | * @return \eZ\Publish\API\Repository\Values\Content\Location the newly created Location |
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| 360 | */ |
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| 361 | public function createLocation(ContentInfo $contentInfo, LocationCreateStruct $locationCreateStruct) |
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| 428 | |||
| 429 | /** |
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| 430 | * Updates $location in the content repository. |
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| 431 | * |
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| 432 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to update this location |
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| 433 | * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException if if set the remoteId exists already |
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| 434 | * |
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| 435 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 436 | * @param \eZ\Publish\API\Repository\Values\Content\LocationUpdateStruct $locationUpdateStruct |
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| 437 | * |
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| 438 | * @return \eZ\Publish\API\Repository\Values\Content\Location the updated Location |
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| 439 | */ |
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| 440 | public function updateLocation(APILocation $location, LocationUpdateStruct $locationUpdateStruct) |
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| 441 | { |
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| 442 | if ($locationUpdateStruct->priority !== null && !is_int($locationUpdateStruct->priority)) { |
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| 443 | throw new InvalidArgumentValue('priority', $locationUpdateStruct->priority, 'LocationUpdateStruct'); |
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| 444 | } |
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| 445 | |||
| 446 | View Code Duplication | if ($locationUpdateStruct->remoteId !== null && (!is_string($locationUpdateStruct->remoteId) || empty($locationUpdateStruct->remoteId))) { |
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| 447 | throw new InvalidArgumentValue('remoteId', $locationUpdateStruct->remoteId, 'LocationUpdateStruct'); |
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| 448 | } |
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| 449 | |||
| 450 | if ($locationUpdateStruct->sortField !== null && !$this->domainMapper->isValidLocationSortField($locationUpdateStruct->sortField)) { |
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| 451 | throw new InvalidArgumentValue('sortField', $locationUpdateStruct->sortField, 'LocationUpdateStruct'); |
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| 452 | } |
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| 453 | |||
| 454 | if ($locationUpdateStruct->sortOrder !== null && !$this->domainMapper->isValidLocationSortOrder($locationUpdateStruct->sortOrder)) { |
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| 455 | throw new InvalidArgumentValue('sortOrder', $locationUpdateStruct->sortOrder, 'LocationUpdateStruct'); |
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| 456 | } |
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| 457 | |||
| 458 | $loadedLocation = $this->loadLocation($location->id); |
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| 459 | |||
| 460 | if ($locationUpdateStruct->remoteId !== null) { |
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| 461 | try { |
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| 462 | $existingLocation = $this->loadLocationByRemoteId($locationUpdateStruct->remoteId); |
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| 463 | if ($existingLocation !== null && $existingLocation->id !== $loadedLocation->id) { |
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| 464 | throw new InvalidArgumentException('locationUpdateStruct', 'location with provided remote ID already exists'); |
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| 465 | } |
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| 466 | } catch (APINotFoundException $e) { |
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| 467 | } |
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| 468 | } |
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| 469 | |||
| 470 | if (!$this->repository->canUser('content', 'edit', $loadedLocation->getContentInfo(), $loadedLocation)) { |
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| 471 | throw new UnauthorizedException('content', 'edit', ['locationId' => $loadedLocation->id]); |
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| 472 | } |
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| 473 | |||
| 474 | $updateStruct = new UpdateStruct(); |
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| 475 | $updateStruct->priority = $locationUpdateStruct->priority !== null ? $locationUpdateStruct->priority : $loadedLocation->priority; |
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| 476 | $updateStruct->remoteId = $locationUpdateStruct->remoteId !== null ? trim($locationUpdateStruct->remoteId) : $loadedLocation->remoteId; |
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| 477 | $updateStruct->sortField = $locationUpdateStruct->sortField !== null ? $locationUpdateStruct->sortField : $loadedLocation->sortField; |
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| 478 | $updateStruct->sortOrder = $locationUpdateStruct->sortOrder !== null ? $locationUpdateStruct->sortOrder : $loadedLocation->sortOrder; |
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| 479 | |||
| 480 | $this->repository->beginTransaction(); |
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| 481 | try { |
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| 482 | $this->persistenceHandler->locationHandler()->update($updateStruct, $loadedLocation->id); |
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| 483 | $this->repository->commit(); |
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| 484 | } catch (Exception $e) { |
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| 485 | $this->repository->rollback(); |
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| 486 | throw $e; |
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| 487 | } |
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| 488 | |||
| 489 | return $this->loadLocation($loadedLocation->id); |
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| 490 | } |
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| 491 | |||
| 492 | /** |
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| 493 | * Swaps the contents held by $location1 and $location2. |
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| 494 | * |
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| 495 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to swap content |
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| 496 | * |
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| 497 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location1 |
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| 498 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location2 |
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| 499 | */ |
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| 500 | public function swapLocation(APILocation $location1, APILocation $location2) |
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| 527 | |||
| 528 | /** |
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| 529 | * Hides the $location and marks invisible all descendants of $location. |
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| 530 | * |
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| 531 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to hide this location |
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| 532 | * |
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| 533 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 534 | * |
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| 535 | * @return \eZ\Publish\API\Repository\Values\Content\Location $location, with updated hidden value |
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| 536 | */ |
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| 537 | View Code Duplication | public function hideLocation(APILocation $location) |
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| 554 | |||
| 555 | /** |
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| 556 | * Unhides the $location. |
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| 557 | * |
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| 558 | * This method and marks visible all descendants of $locations |
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| 559 | * until a hidden location is found. |
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| 560 | * |
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| 561 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to unhide this location |
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| 562 | * |
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| 563 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 564 | * |
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| 565 | * @return \eZ\Publish\API\Repository\Values\Content\Location $location, with updated hidden value |
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| 566 | */ |
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| 567 | View Code Duplication | public function unhideLocation(APILocation $location) |
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| 584 | |||
| 585 | /** |
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| 586 | * Moves the subtree to $newParentLocation. |
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| 587 | * |
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| 588 | * If a user has the permission to move the location to a target location |
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| 589 | * he can do it regardless of an existing descendant on which the user has no permission. |
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| 590 | * |
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| 591 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user is not allowed to move this location to the target |
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| 592 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user user does not have read access to the whole source subtree |
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| 593 | * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException If the new parent is in a subtree of the location |
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| 594 | * |
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| 595 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 596 | * @param \eZ\Publish\API\Repository\Values\Content\Location $newParentLocation |
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| 597 | */ |
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| 598 | public function moveSubtree(APILocation $location, APILocation $newParentLocation) |
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| 668 | |||
| 669 | /** |
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| 670 | * Deletes $location and all its descendants. |
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| 671 | * |
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| 672 | * @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user is not allowed to delete this location or a descendant |
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| 673 | * |
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| 674 | * @param \eZ\Publish\API\Repository\Values\Content\Location $location |
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| 675 | */ |
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| 676 | public function deleteLocation(APILocation $location) |
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| 722 | |||
| 723 | /** |
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| 724 | * Instantiates a new location create class. |
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| 725 | * |
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| 726 | * @param mixed $parentLocationId the parent under which the new location should be created |
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| 727 | * @param eZ\Publish\API\Repository\Values\ContentType\ContentType|null $contentType |
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| 728 | * |
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| 729 | * @return \eZ\Publish\API\Repository\Values\Content\LocationCreateStruct |
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| 730 | */ |
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| 731 | View Code Duplication | public function newLocationCreateStruct($parentLocationId, ContentType $contentType = null) |
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| 743 | |||
| 744 | /** |
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| 745 | * Instantiates a new location update class. |
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| 746 | * |
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| 747 | * @return \eZ\Publish\API\Repository\Values\Content\LocationUpdateStruct |
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| 748 | */ |
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| 749 | public function newLocationUpdateStruct() |
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| 753 | |||
| 754 | /** |
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| 755 | * Get the total number of all existing Locations. Can be combined with loadAllLocations. |
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| 756 | * |
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| 757 | * @see loadAllLocations |
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| 758 | * |
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| 759 | * @return int Total number of Locations |
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| 760 | */ |
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| 761 | public function getAllLocationsCount() |
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| 765 | |||
| 766 | /** |
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| 767 | * Bulk-load all existing Locations, constrained by $limit and $offset to paginate results. |
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| 768 | * |
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| 769 | * @param int $offset |
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| 770 | * @param int $limit |
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| 771 | * |
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| 772 | * @return \eZ\Publish\API\Repository\Values\Content\Location[] |
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| 773 | * |
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| 774 | * @throws \eZ\Publish\API\Repository\Exceptions\BadStateException |
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| 775 | * @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException |
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| 776 | */ |
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| 777 | public function loadAllLocations($offset = 0, $limit = 25) |
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| 823 | } |
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| 824 |
Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a given class or a super-class is assigned to a property that is type hinted more strictly.
Either this assignment is in error or an instanceof check should be added for that assignment.