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<?php declare(strict_types=1); |
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namespace Neomerx\JsonApi\Parser; |
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/** |
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* Copyright 2015-2019 [email protected] |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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use Neomerx\JsonApi\Contracts\Factories\FactoryInterface; |
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use Neomerx\JsonApi\Contracts\Parser\ParserInterface; |
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use Neomerx\JsonApi\Contracts\Parser\PositionInterface; |
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use Neomerx\JsonApi\Contracts\Parser\ResourceInterface; |
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use Neomerx\JsonApi\Contracts\Schema\LinkInterface; |
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use Neomerx\JsonApi\Contracts\Schema\SchemaContainerInterface; |
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use Neomerx\JsonApi\Contracts\Schema\SchemaInterface; |
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use Neomerx\JsonApi\Parser\RelationshipData\ParseRelationshipDataTrait; |
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use Neomerx\JsonApi\Parser\RelationshipData\ParseRelationshipLinksTrait; |
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/** |
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* @package Neomerx\JsonApi |
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*/ |
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class IdentifierAndResource implements ResourceInterface |
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{ |
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use ParseRelationshipDataTrait, ParseRelationshipLinksTrait; |
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/** @var string */ |
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public const MSG_NO_SCHEMA_FOUND = 'No Schema found for resource `%s` at path `%s`.'; |
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/** @var string */ |
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public const MSG_INVALID_OPERATION = 'Invalid operation.'; |
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/** |
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* @var PositionInterface |
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*/ |
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private $position; |
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/** |
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* @var FactoryInterface |
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*/ |
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private $factory; |
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/** |
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* @var SchemaContainerInterface |
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*/ |
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private $schemaContainer; |
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/** |
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* @var SchemaInterface |
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*/ |
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private $schema; |
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/** |
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* @var mixed |
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*/ |
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private $data; |
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/** |
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* @var string |
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*/ |
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private $index; |
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/** |
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* @var string |
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*/ |
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private $type; |
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/** |
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* @var null|array |
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*/ |
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private $links = null; |
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/** |
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* @var null|array |
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*/ |
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private $relationshipsCache = null; |
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/** |
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* @param PositionInterface $position |
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* @param FactoryInterface $factory |
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* @param SchemaContainerInterface $container |
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* @param mixed $data |
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*/ |
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public function __construct( |
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PositionInterface $position, |
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FactoryInterface $factory, |
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SchemaContainerInterface $container, |
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$data |
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) { |
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$schema = $container->getSchema($data); |
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$this |
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->setPosition($position) |
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->setFactory($factory) |
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->setSchemaContainer($container) |
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->setSchema($schema) |
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->setData($data); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getPosition(): PositionInterface |
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{ |
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return $this->position; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getId(): ?string |
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{ |
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return $this->index; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getType(): string |
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{ |
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return $this->type; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function hasIdentifierMeta(): bool |
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{ |
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return $this->getSchema()->hasIdentifierMeta($this->getData()); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getIdentifierMeta() |
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{ |
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return $this->getSchema()->getIdentifierMeta($this->getData()); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getAttributes(): iterable |
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{ |
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return $this->getSchema()->getAttributes($this->getData()); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getRelationships(): iterable |
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{ |
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if ($this->relationshipsCache !== null) { |
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yield from $this->relationshipsCache; |
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return; |
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} |
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$this->relationshipsCache = []; |
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$currentPath = $this->getPosition()->getPath(); |
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$nextLevel = $this->getPosition()->getLevel() + 1; |
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$nextPathPrefix = empty($currentPath) === true ? '' : $currentPath . PositionInterface::PATH_SEPARATOR; |
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foreach ($this->getSchema()->getRelationships($this->getData()) as $name => $description) { |
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assert($this->assertRelationshipNameAndDescription($name, $description) === true); |
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[$hasData, $relationshipData, $nextPosition] = $this->parseRelationshipData( |
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$this->getFactory(), |
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$this->getSchemaContainer(), |
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$this->getType(), |
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$name, |
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$description, |
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$nextLevel, |
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$nextPathPrefix |
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); |
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[$hasLinks, $links] = |
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$this->parseRelationshipLinks($this->getSchema(), $this->getData(), $name, $description); |
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$hasMeta = array_key_exists(SchemaInterface::RELATIONSHIP_META, $description); |
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$meta = $hasMeta === true ? $description[SchemaInterface::RELATIONSHIP_META] : null; |
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assert( |
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$hasData || $hasMeta || $hasLinks, |
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"Relationship `$name` for type `" . $this->getType() . |
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'` MUST contain at least one of the following: links, data or meta.' |
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); |
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$relationship = $this->getFactory()->createRelationship( |
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$nextPosition, |
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$hasData, |
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$relationshipData, |
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$hasLinks, |
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$links, |
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$hasMeta, |
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$meta |
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); |
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$this->relationshipsCache[$name] = $relationship; |
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yield $name => $relationship; |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function hasLinks(): bool |
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{ |
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$this->cacheLinks(); |
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return empty($this->links) === false; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getLinks(): iterable |
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{ |
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$this->cacheLinks(); |
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return $this->links; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function hasResourceMeta(): bool |
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{ |
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return $this->getSchema()->hasResourceMeta($this->getData()); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getResourceMeta() |
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{ |
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return $this->getSchema()->getResourceMeta($this->getData()); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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protected function setPosition(PositionInterface $position): self |
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{ |
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assert($position->getLevel() >= ParserInterface::ROOT_LEVEL); |
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$this->position = $position; |
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return $this; |
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} |
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/** |
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* @return FactoryInterface |
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*/ |
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protected function getFactory(): FactoryInterface |
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{ |
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return $this->factory; |
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} |
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/** |
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* @param FactoryInterface $factory |
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* |
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* @return self |
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*/ |
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protected function setFactory(FactoryInterface $factory): self |
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{ |
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$this->factory = $factory; |
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return $this; |
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} |
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/** |
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* @return SchemaContainerInterface |
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*/ |
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protected function getSchemaContainer(): SchemaContainerInterface |
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{ |
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return $this->schemaContainer; |
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} |
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/** |
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* @param SchemaContainerInterface $container |
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* |
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* @return self |
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*/ |
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protected function setSchemaContainer(SchemaContainerInterface $container): self |
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{ |
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$this->schemaContainer = $container; |
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return $this; |
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} |
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/** |
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* @return SchemaInterface |
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*/ |
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protected function getSchema(): SchemaInterface |
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{ |
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return $this->schema; |
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} |
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/** |
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* @param SchemaInterface $schema |
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* |
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* @return self |
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*/ |
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protected function setSchema(SchemaInterface $schema): self |
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{ |
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$this->schema = $schema; |
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return $this; |
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} |
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/** |
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* @return mixed |
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*/ |
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protected function getData() |
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{ |
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return $this->data; |
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} |
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/** |
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* @param mixed $data |
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* |
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* @return self |
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*/ |
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protected function setData($data): self |
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{ |
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$this->data = $data; |
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$this->index = $this->getSchema()->getId($data); |
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$this->type = $this->getSchema()->getType(); |
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return $this; |
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} |
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/** |
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* Read and parse links from schema. |
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*/ |
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private function cacheLinks(): void |
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{ |
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if ($this->links === null) { |
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$this->links = []; |
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foreach ($this->getSchema()->getLinks($this->getData()) as $name => $link) { |
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assert(is_string($name) === true && empty($name) === false); |
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assert($link instanceof LinkInterface); |
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$this->links[$name] = $link; |
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} |
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} |
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} |
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/** |
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* @param string $name |
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* @param array $description |
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* |
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* @return bool |
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*/ |
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private function assertRelationshipNameAndDescription(string $name, array $description): bool |
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{ |
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assert( |
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is_string($name) === true && empty($name) === false, |
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"Relationship names for type `" . $this->getType() . '` should be non-empty strings.' |
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); |
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assert( |
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is_array($description) === true && empty($description) === false, |
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"Relationship `$name` for type `" . $this->getType() . '` should be a non-empty array.' |
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); |
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return true; |
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} |
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} |
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.