/**
* Save the post to the triple store. Also saves the entities locally and on the triple store.
*
* @since 3.0.0
*
* @param int $post_id The post id being saved.
*/
function wl_linked_data_save_post_and_related_entities($post_id)
{
// Ignore auto-saves
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// get the current post.
$post = get_post($post_id);
remove_action('wl_linked_data_save_post', 'wl_linked_data_save_post_and_related_entities');
wl_write_log("[ post id :: {$post_id} ][ autosave :: false ][ post type :: {$post->post_type} ]");
// Store mapping between tmp new entities uris and real new entities uri
$entities_uri_mapping = array();
// Store classification box mapping
$entities_predicates_mapping = null;
// Save the entities coming with POST data.
if (isset($_POST['wl_entities']) && isset($_POST['wl_boxes'])) {
wl_write_log("[ post id :: {$post_id} ][ POST(wl_entities) :: ");
wl_write_log(json_encode($_POST['wl_entities']));
wl_write_log("]");
wl_write_log("[ post id :: {$post_id} ][ POST(wl_boxes) :: ");
wl_write_log(json_encode($_POST['wl_boxes'], true));
wl_write_log("]");
$entities_via_post = $_POST['wl_entities'];
$boxes_via_post = $_POST['wl_boxes'];
foreach ($entities_via_post as $entity_uri => $entity) {
// Local entities have a tmp uri with 'local-entity-'
// These uris need to be rewritten here and replaced in the content
if (preg_match('/^local-entity-.+/', $entity_uri) > 0) {
// Build the proper uri
$uri = sprintf('%s/%s/%s', wl_configuration_get_redlink_dataset_uri(), 'entity', wl_sanitize_uri_path($entity['label']));
// Populate the mapping
$entities_uri_mapping[$entity_uri] = $uri;
// Override the entity obj
$entities_via_post[$entity_uri]['uri'] = $uri;
}
}
// Populate the $entities_predicates_mapping
// Local Redlink uris need to be used here
foreach ($boxes_via_post as $predicate => $entity_uris) {
foreach ($entity_uris as $entity_uri) {
wl_write_log("Going to map predicates for uri {$entity_uri} ");
// Retrieve the entity label needed to build the uri
$label = $entities_via_post[stripslashes($entity_uri)]['label'];
$uri = sprintf('%s/%s/%s', wl_configuration_get_redlink_dataset_uri(), 'entity', wl_sanitize_uri_path($label));
wl_write_log("Going to map predicate {$predicate} to uri {$uri} ");
$entities_predicates_mapping[$uri][] = $predicate;
}
}
// Save entities and push them to Redlink
// TODO: pass also latitude, longitude, etc.
wl_save_entities(array_values($entities_via_post), $post_id);
}
// Replace tmp uris in content post if needed
$updated_post_content = $post->post_content;
// Save each entity and store the post id.
foreach ($entities_uri_mapping as $tmp_uri => $uri) {
$updated_post_content = str_replace($tmp_uri, $uri, $updated_post_content);
}
// Update the post content
wp_update_post(array('ID' => $post->ID, 'post_content' => $updated_post_content));
// Extract related/referenced entities from text.
$disambiguated_entities = wl_linked_data_content_get_embedded_entities($updated_post_content);
// Reset previously saved instances
wl_core_delete_relation_instances($post_id);
// Save relation instances
foreach (array_unique($disambiguated_entities) as $referenced_entity_id) {
wl_write_log(" Going to manage relation between Post {$post_id} and {$referenced_entity_id}");
if ($entities_predicates_mapping) {
wl_write_log(" Going to manage relation instances according to the following mapping");
// Retrieve the entity uri
$referenced_entity_uri = wl_get_entity_uri($referenced_entity_id);
// Retrieve predicates for the current uri
if (isset($entities_predicates_mapping[$referenced_entity_uri])) {
foreach ($entities_predicates_mapping[$referenced_entity_uri] as $predicate) {
wl_write_log(" Going to add relation with predicate {$predicate}");
wl_core_add_relation_instance($post_id, $predicate, $referenced_entity_id);
}
} else {
wl_write_log("Entity uri {$referenced_entity_uri} missing in the mapping");
wl_write_log($entities_predicates_mapping);
}
} else {
// Just for unit tests
wl_core_add_relation_instance($post_id, 'what', $referenced_entity_id);
}
// TODO Check if is needed
wl_linked_data_push_to_redlink($referenced_entity_id);
}
// Push the post to Redlink.
wl_linked_data_push_to_redlink($post->ID);
add_action('wl_linked_data_save_post', 'wl_linked_data_save_post_and_related_entities');
}
/**
* Test saving entities passed via a metabox.
*/
function testEntitiesViaArray()
{
// Create a post.
$post_id = $this->createPost();
$this->assertTrue(is_numeric($post_id));
$post = get_post($post_id);
$this->assertNotNull($post);
// Read the entities from the mock-up analysis.
$analysis_results = wl_parse_file(dirname(__FILE__) . '/' . self::FILENAME . '.json');
$this->assertTrue(is_array($analysis_results));
// For each entity get the label, type, description and thumbnails.
$this->assertTrue(isset($analysis_results['entities']));
// Get a reference to the entities.
$text_annotations = $analysis_results['text_annotations'];
$best_entities = array();
foreach ($text_annotations as $id => $text_annotation) {
$entity_annotation = wl_get_entity_annotation_best_match($text_annotation['entities']);
$entity = $entity_annotation['entity'];
$entity_id = $entity->{'@id'};
if (!array_key_exists($entity_id, $best_entities)) {
$best_entities[$entity_id] = $entity;
}
}
// Accumulate the entities in an array.
$entities = array();
foreach ($best_entities as $uri => $entity) {
// Label
if (!isset($entity->{'http://www.w3.org/2000/01/rdf-schema#label'}->{'@value'})) {
var_dump($entity);
}
$this->assertTrue(isset($entity->{'http://www.w3.org/2000/01/rdf-schema#label'}->{'@value'}));
$label = $entity->{'http://www.w3.org/2000/01/rdf-schema#label'}->{'@value'};
$this->assertFalse(empty($label));
// Type
// $type = wl_get_entity_type($entity);
// $this->assertFalse(empty($type));
// Description
$description = wl_get_entity_description($entity);
$this->assertNotNull($description);
// Images
$images = wl_get_entity_thumbnails($entity);
$this->assertTrue(is_array($images));
// Save the entity to the entities array.
$entities = array_merge_recursive($entities, array($uri => array('uri' => $uri, 'label' => $label, 'main_type' => 'http://schema.org/Thing', 'type' => array(), 'description' => $description, 'images' => $images)));
}
// Save the entities in the array.
$entity_posts = wl_save_entities($entities);
// Publish
$entity_post_ids = array_map(function ($item) {
return $item->ID;
}, $entity_posts);
foreach ($entity_post_ids as $entity_id) {
wp_publish_post($entity_id);
}
// TODO: need to bind entities with posts.
wl_core_add_relation_instances($post_id, WL_WHAT_RELATION, $entity_post_ids);
$this->assertCount(sizeof($entity_post_ids), wl_core_get_related_entity_ids($post_id));
// TODO: synchronize data.
// NOTICE: this requires a published post!
wl_linked_data_push_to_redlink($post_id);
// Check that the entities are created in WordPress.
$this->assertCount(count($entities), $entity_posts);
// Check that each entity is bound to the post.
$entity_ids = array();
foreach ($entity_posts as $post) {
// Store the entity IDs for future checks.
array_push($entity_ids, $post->ID);
// Get the related posts IDs.
$rel_posts = wl_core_get_related_post_ids($post->ID);
$this->assertCount(1, $rel_posts);
// The post must be the one the test created.
$this->assertEquals($post_id, $rel_posts[0]);
}
// Check that the post references the entities.
$rel_entities = wl_core_get_related_entity_ids($post_id);
$this->assertEquals(count($entity_ids), count($rel_entities));
foreach ($entity_ids as $id) {
$this->assertTrue(in_array($id, $rel_entities));
}
// Check that the locally saved entities and the remotely saved ones match.
$this->checkEntities($entity_posts);
// Check that the locally saved post data match the ones on Redlink.
$this->checkPost($post_id);
// Check the post references, that they match between local and remote.
$this->checkPostReferences($post_id);
// Delete the post.
$this->deletePost($post_id);
}
