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<?php |
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namespace CultuurNet\UDB3; |
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use CultureFeed_Cdb_Data_Keyword; |
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class LabelImporter |
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{ |
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/** |
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* @param \CultureFeed_Cdb_Item_Base $item |
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* @param $jsonLD |
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*/ |
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public function importLabels(\CultureFeed_Cdb_Item_Base $item, $jsonLD) |
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{ |
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/** @var CultureFeed_Cdb_Data_Keyword[] $keywords */ |
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$keywords = array_values($item->getKeywords(true)); |
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$validKeywords = array_filter( |
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$keywords, |
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function (CultureFeed_Cdb_Data_Keyword $keyword) { |
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return strlen(trim($keyword->getValue())) > 0; |
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} |
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); |
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$visibleKeywords = array_filter( |
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$validKeywords, |
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function (CultureFeed_Cdb_Data_Keyword $keyword) { |
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return $keyword->isVisible(); |
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} |
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); |
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$hiddenKeywords = array_filter( |
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$validKeywords, |
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function (CultureFeed_Cdb_Data_Keyword $keyword) { |
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return !$keyword->isVisible(); |
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} |
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); |
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$this->addKeywordsAsLabelsProperty($jsonLD, 'labels', $visibleKeywords); |
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$this->addKeywordsAsLabelsProperty($jsonLD, 'hiddenLabels', $hiddenKeywords); |
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} |
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/** |
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* @param object $jsonLD |
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* @param string $labelsPropertyName |
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* The property where the labels should be listed. Used the differentiate between visible and hidden labels. |
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* @param CultureFeed_Cdb_Data_Keyword[] $keywords |
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*/ |
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private function addKeywordsAsLabelsProperty($jsonLD, $labelsPropertyName, array $keywords) |
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{ |
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$labels = array_map( |
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function ($keyword) { |
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/** @var CultureFeed_Cdb_Data_Keyword $keyword */ |
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return $keyword->getValue(); |
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}, |
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$keywords |
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); |
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// Create a label collection to get rid of duplicates. |
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$labelCollection = LabelCollection::fromStrings($labels); |
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if (count($labelCollection) > 0) { |
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$jsonLD->{$labelsPropertyName} = $labelCollection->toStrings(); |
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} |
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} |
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} |
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cultuurnet /
udb3-php
