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<?php |
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/** |
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* Renditions: Sparql Tuple Rendition. |
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* |
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* Renders a property (accessed using a {@link Wordlift_Storage} instance) to |
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* a tuple for use in SPARQL statements. |
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* |
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* @since 3.15.0 |
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* @package Wordlift |
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* @subpackage Wordlift/includes |
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*/ |
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/** |
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* Define the {@link Wordlift_Sparql_Tuple_Rendition} class. |
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* |
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* @since 3.15.0 |
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* @package Wordlift |
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* @subpackage Wordlift/includes |
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*/ |
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class Wordlift_Sparql_Tuple_Rendition { |
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/** |
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* A {@link Wordlift_Storage} instance to read a property. |
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* |
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* @since 3.15.0 |
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* @access private |
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* @var \Wordlift_Storage $storage A {@link Wordlift_Storage} instance to |
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* read a property. |
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*/ |
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private $storage; |
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/** |
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* The predicate URI. |
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* |
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* @since 3.15.0 |
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* @access private |
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* @var string $predicate The predicate URI. |
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*/ |
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private $predicate; |
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/** |
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* The data type (or null if not set). |
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* |
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* @since 3.15.0 |
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* @access private |
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* @var string|null $data_type The data type (or null if not set). |
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*/ |
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private $data_type; |
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/** |
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* The language (or null if not set). |
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* |
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* @since 3.15.0 |
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* @access private |
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* @var string|null $language The language (or null if not set). |
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*/ |
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private $language; |
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/** |
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* The {@link Wordlift_Entity_Service} instance. |
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* |
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* @since 3.15.0 |
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* @access private |
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* @var \Wordlift_Entity_Service $entity_service The {@link Wordlift_Entity_Service} instance. |
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*/ |
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private $entity_service; |
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/** |
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* Create a {@link Wordlift_Sparql_Tuple_Rendition} instance. |
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* |
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* @since 3.15.0 |
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* |
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* @param \Wordlift_Entity_Service $entity_service The {@link Wordlift_Entity_Service} |
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* instance. |
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* @param \Wordlift_Storage $storage The {@link Wordlift_Storage} |
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* instance. |
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* @param string $predicate The predicate URI. |
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* @param string|null $data_type The data type or null. |
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* @param string|null $language The language code or null. |
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*/ |
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public function __construct( $entity_service, $storage, $predicate, $data_type = null, $language = null ) { |
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$this->entity_service = $entity_service; |
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$this->storage = $storage; |
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$this->predicate = $predicate; |
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$this->data_type = $data_type; |
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$this->language = $language; |
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} |
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/** |
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* Get tuple representations for the specified {@link WP_Post}. |
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* |
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* @since 3.15.0 |
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* |
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* @param int $post_id The {@link WP_Post}'s id. |
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* |
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* @return array An array of tuples. |
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*/ |
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public function get( $post_id ) { |
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// Get the entity URI. |
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$uri = $this->entity_service->get_uri( $post_id ); |
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// Get the predicate, data type and language. |
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$predicate = $this->predicate; |
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$data_type = $this->data_type; |
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$language = $this->language; |
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// Filter out empty values. |
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$values = array_filter( (array) $this->storage->get( $post_id ), function ( $item ) { |
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return ! empty( $item ); |
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} ); |
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// Map the values to tuples. |
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return array_map( function ( $item ) use ( $uri, $predicate, $data_type, $language ) { |
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return sprintf( '<%s> <%s> %s . ', |
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Wordlift_Sparql_Service::escape_uri( $uri ), |
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Wordlift_Sparql_Service::escape_uri( $predicate ), |
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Wordlift_Sparql_Service::format( $item, $data_type, $language ) |
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); |
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}, $values ); |
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} |
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/** |
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* Get the predicate for this {@link Wordlift_Sparql_Tuple_Rendition}. |
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* |
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* @since 3.15.0 |
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* |
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* @return string The predicate. |
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*/ |
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public function get_predicate() { |
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return $this->predicate; |
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} |
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} |
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insideout10 /
wordlift-plugin
