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<?php |
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namespace PPP\Wikidata\ValueFormatters\JsonLd\Entity; |
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use OutOfBoundsException; |
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use ValueFormatters\FormatterOptions; |
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use ValueFormatters\FormattingException; |
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use ValueFormatters\ValueFormatter; |
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use ValueFormatters\ValueFormatterBase; |
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use Wikibase\DataModel\Entity\EntityIdParser; |
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use Wikibase\DataModel\Entity\EntityIdParsingException; |
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use Wikibase\DataModel\Services\Lookup\ItemLookup; |
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/** |
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* @licence AGPLv3+ |
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* @author Thomas Pellissier Tanon |
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*/ |
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class UnitSymbolFormatter extends ValueFormatterBase { |
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/** |
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* @var EntityIdParser |
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*/ |
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private $entityIriParser; |
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/** |
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* @var EntityOntology |
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*/ |
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private $entityOntology; |
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/** |
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* @var ItemLookup |
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*/ |
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private $itemLookup; |
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public function __construct( |
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EntityIdParser $entityIriParser, |
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EntityOntology $entityOntology, |
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ItemLookup $itemLookup, |
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FormatterOptions $options = null |
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) { |
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$this->entityIriParser = $entityIriParser; |
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$this->entityOntology = $entityOntology; |
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$this->itemLookup = $itemLookup; |
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parent::__construct($options); |
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} |
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/** |
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* @see ValueFormatterBase::format |
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*/ |
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public function format($value) { |
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try { |
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$itemId = $this->entityIriParser->parse($value); |
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} catch(EntityIdParsingException $e) { |
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throw new FormattingException('Invalid unit IRI: ' . $value); |
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} |
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$item = $this->itemLookup->getItemForId($itemId); |
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if($item === null) { |
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throw new FormattingException('Item not found: ' . $value); |
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} |
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try { |
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return $this->entityOntology->getUnitSymbol($item); |
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} catch(OutOfBoundsException $e) { |
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try { |
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return $item->getFingerprint()->getLabel($this->getOption(ValueFormatter::OPT_LANG))->getText(); |
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} catch (OutOfBoundsException $e) { |
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throw new FormattingException('No unit symbol and no label for IRI ' . $value); |
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} |
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} |
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} |
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} |
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This check looks for parameters that are defined as one type in their type hint or doc comment but seem to be used as a narrower type, i.e an implementation of an interface or a subclass.
Consider changing the type of the parameter or doing an instanceof check before assuming your parameter is of the expected type.