/**
* Get the SPARQL fragment to set the dc:references statements.
*
* @param int $post_id The post ID.
*
* @return string The SPARQL fragment (or an empty string).
*/
function wl_get_sparql_post_references($post_id)
{
// Get the post URI.
$post_uri = wordlift_esc_sparql(wl_get_entity_uri($post_id));
// Get the related entities IDs.
$related = wl_core_get_related_entity_ids($post_id);
// Build the SPARQL fragment.
$sparql = '';
foreach ($related as $id) {
$uri = wordlift_esc_sparql(wl_get_entity_uri($id));
$sparql .= "<{$post_uri}> dct:references <{$uri}> . ";
}
return $sparql;
}
function getPostTriples($post_id)
{
// Get the post Redlink URI.
$uri = wl_get_entity_uri($post_id);
$uri_esc = wordlift_esc_sparql($uri);
// Prepare the SPARQL query to select label and URL.
$sparql = "SELECT DISTINCT ?p ?o WHERE { <{$uri_esc}> ?p ?o . }";
// Send the query and get the response.
$response = rl_sparql_select($sparql);
$this->assertFalse(is_wp_error($response));
$lines = array();
foreach (explode("\n", $response['body']) as $line) {
if (empty($line)) {
continue;
}
$lines[] = preg_replace('/\\s+/', '', $line);
}
return $lines;
}
/**
* Check that the post is referencing the related entities.
*
* @param int $post_id The post ID.
*/
function checkPostReferences($post_id)
{
// Get the post.
$post = get_post($post_id);
$this->assertNotNull($post);
// Get the post Redlink URI.
$uri = wordlift_esc_sparql(wl_get_entity_uri($post->ID));
// Prepare the SPARQL query to select label and URL.
$sparql = "SELECT DISTINCT ?uri WHERE { <{$uri}> dct:references ?uri . }";
// Send the query and get the response.
$response = rl_sparql_select($sparql);
$this->assertFalse(is_wp_error($response));
$body = $response['body'];
$matches = array();
$count = preg_match_all('/^(?P<uri>[^\\r]*)/im', $body, $matches, PREG_SET_ORDER);
$this->assertTrue(is_numeric($count));
$entity_ids = wl_core_get_related_entity_ids($post->ID);
// wl_write_log( "[ entity IDs :: " . join( ', ', $entity_ids ) . " ][ size of entity IDs :: " . sizeof( $entity_ids ) . " ][ count :: $count ][ post ID :: $post->ID ]" );
//
// if ( $count !== ( 1 + sizeof( $entity_ids ) ) ) {
// wl_write_log( "[ sparql :: $sparql ][ body :: $body ]" );
// }
// Expect only one match (headers + expected entities).
$this->assertEquals($count, sizeof($entity_ids) + 1);
$entity_uris = wl_post_ids_to_entity_uris($entity_ids);
for ($i = 1; $i < $count; $i++) {
$entity_uri = $matches[$i]['uri'];
// Check that the URI is in the array.
$this->assertTrue(in_array($entity_uri, $entity_uris));
}
}
/**
* Called when a user is updated.
*
* @param int $user_id The user ID.
*
* @return true if successful otherwise false.
*/
function wl_update_user_profile($user_id)
{
wl_write_log("wl_update_user_profile [ user id :: {$user_id} ]");
// Get the site language setting.
$language = wl_configuration_get_site_language();
// Get the user.
$user = get_userdata($user_id);
// Get the user URI.
$uri = wl_sparql_escape_uri(wl_get_user_uri($user_id));
// Get the first/last name and the posts URL.
$first_name = wordlift_esc_sparql($user->first_name);
$last_name = wordlift_esc_sparql($user->last_name);
$posts_url = wl_sparql_escape_uri(get_author_posts_url($user_id));
$query = rl_sparql_prefixes();
$query .= <<<EOF
DELETE { <{$uri}> schema:givenName ?o } WHERE { <{$uri}> schema:givenName ?o };
DELETE { <{$uri}> schema:familyName ?o } WHERE { <{$uri}> schema:familyName ?o };
DELETE { <{$uri}> schema:url ?o } WHERE { <{$uri}> schema:url ?o };
INSERT DATA {
<{$uri}> schema:givenName '{$first_name}'@{$language} .
<{$uri}> schema:familyName '{$last_name}'@{$language} .
<{$uri}> schema:url <{$posts_url}> .
}
EOF;
// Execute the query.
return rl_execute_sparql_update_query($query);
}