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<?php |
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/** |
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* Define the Wordlift_Rebuild_Service class. |
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*/ |
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/** |
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* The Wordlift_Rebuild_Service allows to rebuild the Linked Data dataset from |
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* scratch by clearing out data on the remote dataset, parsing all data in WordPress |
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* and resending data to the remote dataset. |
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* |
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* @since 3.6.0 |
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*/ |
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class Wordlift_Rebuild_Service extends Wordlift_Listable { |
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/** |
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* A {@link Wordlift_Log_Service} instance. |
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* |
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* @since 3.6.0 |
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* @access private |
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* @var \Wordlift_Log_Service $log A {@link Wordlift_Log_Service} instance. |
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*/ |
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private $log; |
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/** |
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* A {@link Wordlift_Sparql_Service} instance. |
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* @since 3.6.0 |
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* @access private |
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* @var \Wordlift_Sparql_Service $sparql_service A {@link Wordlift_Sparql_Service} instance. |
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*/ |
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private $sparql_service; |
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/** |
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* @var \Wordlift_Uri_Service |
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*/ |
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private $uri_service; |
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/** |
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* Create an instance of Wordlift_Rebuild_Service. |
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* |
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* @since 3.6.0 |
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* |
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* @param \Wordlift_Sparql_Service $sparql_service A {@link Wordlift_Sparql_Service} instance used to query the remote dataset. |
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* @param \Wordlift_Uri_Service $uri_service |
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*/ |
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public function __construct( $sparql_service, $uri_service ) { |
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$this->log = Wordlift_Log_Service::get_logger( 'Wordlift_Rebuild_Service' ); |
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$this->sparql_service = $sparql_service; |
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$this->uri_service = $uri_service; |
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} |
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/** |
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* Rebuild the Linked Data remote dataset by clearing it out and repopulating |
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* it with local data. |
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* |
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* @since 3.6.0 |
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*/ |
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public function rebuild() { |
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// Give ourselves some time to process the data. |
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set_time_limit( 21600 ); // 6 hours |
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// Clear out all generated URIs, since the dataset URI might have changed |
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// in the process. |
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$this->uri_service->delete_all(); |
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// Delete all the triples in the remote dataset. |
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$this->sparql_service->queue( 'DELETE { ?s ?p ?o } WHERE { ?s ?p ?o };' ); |
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// Go through the list of published entities and posts and call the (legacy) |
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// `wl_linked_data_save_post` function for each one. We're using the `process` |
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// function which is provided by the parent `Wordlift_Listable` abstract class |
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// and will cycle through all the posts w/ a very small memory footprint |
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// in order to avoid memory errors. |
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$this->process( function ( $post ) { |
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wl_linked_data_save_post( $post->ID ); |
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}, array( |
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'post_status' => 'publish', |
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'post_type' => array( 'entity', 'post' ) |
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) ); |
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// If we're being called as AJAX, die here. |
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if ( DOING_AJAX ) { |
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wp_die(); |
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} |
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} |
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/** |
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* List the items starting at the specified offset and up to the specified limit. |
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* |
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* @since 3.6.0 |
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* |
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* @param int $offset The start offset. |
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* @param int $limit The maximum number of items to return. |
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* @param array $args Additional arguments. |
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* |
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* @return array A array of items (or an empty array if no items are found). |
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*/ |
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function find( $offset = 0, $limit = 10, $args = array() ) { |
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return get_posts( wp_parse_args( $args, array( |
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'offset' => $offset, |
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'numberposts' => $limit, |
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'fields' => 'all', |
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'orderby' => 'ID', |
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'order' => 'ASC', |
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'post_status' => 'any', |
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'post_type' => 'post' |
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) ) ); |
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} |
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} |
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insideout10 /
wordlift-plugin
Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.