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<?php |
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/** |
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* Class for handling concept property values. |
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*/ |
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class ConceptPropertyValue extends VocabularyDataObject |
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{ |
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/** submembers */ |
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private $submembers; |
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/** property type */ |
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private $type; |
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/** content language */ |
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private $clang; |
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/** whether the property value is external w.r.t. to the subject resource */ |
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private $external; |
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public function __construct($model, $vocab, $resource, $prop, $clang = '') |
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{ |
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parent::__construct($model, $vocab, $resource); |
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$this->submembers = array(); |
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$this->type = $prop; |
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$this->clang = $clang; |
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// check if the resource is external to the current vocabulary |
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$this->external = ($this->getLabel('', 'null') === null); |
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if ($this->external) { |
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// if we find the resource in another vocabulary, use it instead |
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$exvocab = $this->getExVocab(); |
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if ($exvocab !== null) { |
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$this->vocab = $exvocab; |
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} |
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} |
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} |
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public function __toString() |
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{ |
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$label = is_string($this->getLabel()) ? $this->getLabel() : $this->getLabel()->getValue(); |
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if ($this->vocab->getConfig()->sortByNotation()) { |
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$label = ltrim($this->getNotation() . ' ') . $label; |
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} |
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return $label; |
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} |
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public function getLang() |
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{ |
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return $this->getEnvLang(); |
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} |
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public function getLabel($lang = '', $fallbackToUri = 'uri') |
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{ |
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if ($this->clang) { |
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$lang = $this->clang; |
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} |
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if ($this->vocab->getConfig()->getLanguageOrder($lang)) { |
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foreach ($this->vocab->getConfig()->getLanguageOrder($lang) as $fallback) { |
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if ($this->resource->label($fallback) !== null) { |
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return $this->resource->label($fallback); |
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} |
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// We need to check all the labels in case one of them matches a subtag of the current language |
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if ($this->resource->allLiterals('skos:prefLabel')) { |
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foreach($this->resource->allLiterals('skos:prefLabel') as $label) { |
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// the label lang code is a subtag of the UI lang eg. en-GB - create a new literal with the main language |
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if ($label !== null && strpos($label->getLang(), $fallback . '-') === 0) { |
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return EasyRdf\Literal::create($label, $fallback); |
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} |
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} |
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} |
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} |
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} |
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if ($this->resource->label($lang) !== null) { // current language |
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return $this->resource->label($lang); |
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} elseif ($this->resource->label($this->vocab->getConfig()->getDefaultLanguage()) !== null) { // vocab default language |
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return $this->resource->label($this->vocab->getConfig()->getDefaultLanguage()); |
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} elseif ($this->resource->label() !== null) { // any language |
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return $this->resource->label(); |
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} elseif ($this->resource->getLiteral('rdf:value', $lang) !== null) { // current language |
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return $this->resource->getLiteral('rdf:value', $lang); |
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} elseif ($this->resource->getLiteral('rdf:value') !== null) { // any language |
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return $this->resource->getLiteral('rdf:value'); |
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} |
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// see if we can find a label in another vocabulary known by the skosmos instance |
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$label = $this->getExternalLabel($this->vocab, $this->getUri(), $lang); |
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if ($label) { |
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return $label; |
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} |
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if ($fallbackToUri == 'uri') { |
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// return uri if no label is found |
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return $this->resource->shorten() ? $this->resource->shorten() : $this->getUri(); |
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} |
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return null; |
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} |
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public function getType() |
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{ |
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return $this->type; |
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} |
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public function getUri() |
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{ |
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return $this->resource->getUri(); |
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} |
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public function getExVocab() |
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{ |
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return $this->model->guessVocabularyFromURI($this->getUri(), $this->vocab->getId()); |
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} |
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public function getVocab() |
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{ |
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return $this->vocab; |
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} |
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public function getVocabName() |
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{ |
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return $this->vocab->getShortName(); |
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} |
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public function addSubMember($member, $lang = '') |
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{ |
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$label = $member->getLabel($lang) ? $member->getLabel($lang) : $member->getLabel(); |
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$this->submembers[$label->getValue()] = $member; |
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$this->sortSubMembers(); |
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} |
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public function getSubMembers() |
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{ |
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if (empty($this->submembers)) { |
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return null; |
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} |
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return $this->submembers; |
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} |
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private function sortSubMembers() |
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{ |
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if (!empty($this->submembers)) { |
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ksort($this->submembers); |
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} |
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} |
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public function isExternal() { |
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return $this->external; |
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} |
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public function getNotation() |
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{ |
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if ($this->vocab->getConfig()->showNotation() && $this->resource->get('skos:notation')) { |
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return $this->resource->get('skos:notation')->getValue(); |
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} |
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} |
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public function isReified() { |
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return (!$this->resource->label() && $this->resource->getLiteral('rdf:value')); |
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} |
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public function getReifiedPropertyValues() { |
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$ret = array(); |
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$props = $this->resource->propertyUris(); |
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foreach($props as $prop) { |
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$prop = (EasyRdf\RdfNamespace::shorten($prop) !== null) ? EasyRdf\RdfNamespace::shorten($prop) : $prop; |
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foreach ($this->resource->allLiterals($prop) as $val) { |
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if ($prop !== 'rdf:value') { // shown elsewhere |
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$ret[gettext($prop)] = new ConceptPropertyValueLiteral($this->model, $this->vocab, $this->resource, $val, $prop); |
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} |
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} |
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foreach ($this->resource->allResources($prop) as $val) { |
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$ret[gettext($prop)] = new ConceptPropertyValue($this->model, $this->vocab, $val, $prop, $this->clang); |
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} |
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} |
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return $ret; |
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} |
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} |
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NatLibFi /
Skosmos
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