insideout10 / wordlift-plugin

src/includes/class-wordlift-entity-service.php

Indentation +718 added lines, -718 removed lines

@@ -7,637 +7,637 @@ 
  */
 class Wordlift_Entity_Service {
 
-	/**
-	 * The Log service.
-	 *
-	 * @since  3.2.0
-	 * @access private
-	 * @var \Wordlift_Log_Service $log The Log service.
-	 */
-	private $log;
-
-	/**
-	 * The UI service.
-	 *
-	 * @since  3.2.0
-	 * @access private
-	 * @var \Wordlift_UI_Service $ui_service The UI service.
-	 */
-	private $ui_service;
-
-	/**
-	 * The {@link Wordlift_Relation_Service} instance.
-	 *
-	 * @since  3.15.0
-	 * @access private
-	 * @var \Wordlift_Relation_Service $relation_service The {@link Wordlift_Relation_Service} instance.
-	 */
-	private $relation_service;
-
-	/**
-	 * An array of URIs to post ID valid for the current request.
-	 *
-	 * @since 3.16.1
-	 * @var array $uri_to_post An array of URIs to post ID valid for the current request.
-	 */
-	private $uri_to_post;
-
-	/**
-	 * The entity post type name.
-	 *
-	 * @since 3.1.0
-	 */
-	const TYPE_NAME = 'entity';
-
-	/**
-	 * The alternative label meta key.
-	 *
-	 * @since 3.2.0
-	 */
-	const ALTERNATIVE_LABEL_META_KEY = '_wl_alt_label';
-
-	/**
-	 * The alternative label input template.
-	 *
-	 * @since 3.2.0
-	 */
-	// TODO: this should be moved to a class that deals with HTML code.
-	const ALTERNATIVE_LABEL_INPUT_TEMPLATE = '<div class="wl-alternative-label">
+    /**
+     * The Log service.
+     *
+     * @since  3.2.0
+     * @access private
+     * @var \Wordlift_Log_Service $log The Log service.
+     */
+    private $log;
+
+    /**
+     * The UI service.
+     *
+     * @since  3.2.0
+     * @access private
+     * @var \Wordlift_UI_Service $ui_service The UI service.
+     */
+    private $ui_service;
+
+    /**
+     * The {@link Wordlift_Relation_Service} instance.
+     *
+     * @since  3.15.0
+     * @access private
+     * @var \Wordlift_Relation_Service $relation_service The {@link Wordlift_Relation_Service} instance.
+     */
+    private $relation_service;
+
+    /**
+     * An array of URIs to post ID valid for the current request.
+     *
+     * @since 3.16.1
+     * @var array $uri_to_post An array of URIs to post ID valid for the current request.
+     */
+    private $uri_to_post;
+
+    /**
+     * The entity post type name.
+     *
+     * @since 3.1.0
+     */
+    const TYPE_NAME = 'entity';
+
+    /**
+     * The alternative label meta key.
+     *
+     * @since 3.2.0
+     */
+    const ALTERNATIVE_LABEL_META_KEY = '_wl_alt_label';
+
+    /**
+     * The alternative label input template.
+     *
+     * @since 3.2.0
+     */
+    // TODO: this should be moved to a class that deals with HTML code.
+    const ALTERNATIVE_LABEL_INPUT_TEMPLATE = '<div class="wl-alternative-label">
                 <label class="screen-reader-text" id="wl-alternative-label-prompt-text" for="wl-alternative-label">Enter alternative label here</label>
                 <input name="wl_alternative_label[]" size="30" value="%s" id="wl-alternative-label" type="text">
                 <button class="button wl-delete-button">%s</button>
                 </div>';
 
-	/**
-	 * A singleton instance of the Entity service.
-	 *
-	 * @since  3.2.0
-	 * @access private
-	 * @var \Wordlift_Entity_Service $instance A singleton instance of the Entity service.
-	 */
-	private static $instance;
-
-	/**
-	 * Create a Wordlift_Entity_Service instance.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param \Wordlift_UI_Service       $ui_service       The UI service.
-	 * @param \Wordlift_Relation_Service $relation_service The {@link Wordlift_Relation_Service} instance.
-	 */
-	public function __construct( $ui_service, $relation_service ) {
-
-		$this->log = Wordlift_Log_Service::get_logger( 'Wordlift_Entity_Service' );
-
-		$this->ui_service       = $ui_service;
-		$this->relation_service = $relation_service;
-
-		$this->reset_uris();
-
-		// Set the singleton instance.
-		self::$instance = $this;
-	}
-
-	/**
-	 * Get the singleton instance of the Entity service.
-	 *
-	 * @since 3.2.0
-	 * @return \Wordlift_Entity_Service The singleton instance of the Entity service.
-	 */
-	public static function get_instance() {
-
-		return self::$instance;
-	}
-
-	/**
-	 * Determines whether a post is an entity or not. Entity is in this context
-	 * something which is not an article.
-	 *
-	 * @since 3.1.0
-	 *
-	 * @param int $post_id A post id.
-	 *
-	 * @return bool Return true if the post is an entity otherwise false.
-	 */
-	public function is_entity( $post_id ) {
-
-		$terms = wp_get_object_terms( $post_id, Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME );
-
-		if ( 0 === count( $terms ) ) {
-			return false;
-		}
-
-		// We don't consider an `article` to be an entity.
-		if ( 'article' !== $terms[0]->slug ) {
-			return true;
-		}
-
-		return false;
-	}
-
-	/**
-	 * Get the proper classification scope for a given entity post
-	 *
-	 * @since 3.5.0
-	 *
-	 * @param integer $post_id An entity post id.
-	 *
-	 * @param string  $default The default classification scope, `what` if not
-	 *                         provided.
-	 *
-	 * @return string Returns a classification scope (e.g. 'what').
-	 */
-	public function get_classification_scope_for( $post_id, $default = WL_WHAT_RELATION ) {
-
-		if ( false === $this->is_entity( $post_id ) ) {
-			return $default;
-		}
-
-		// Retrieve the entity type
-		$entity_type_arr = Wordlift_Entity_Type_Service::get_instance()->get( $post_id );
-		$entity_type     = str_replace( 'wl-', '', $entity_type_arr['css_class'] );
-		// Retrieve classification boxes configuration
-		$classification_boxes = unserialize( WL_CORE_POST_CLASSIFICATION_BOXES );
-		foreach ( $classification_boxes as $cb ) {
-			if ( in_array( $entity_type, $cb['registeredTypes'] ) ) {
-				return $cb['id'];
-			}
-		}
-
-		return $default;
-	}
-
-	/**
-	 * Check whether a {@link WP_Post} is used.
-	 *
-	 * @param int $post_id The {@link WP_Post}'s id.
-	 *
-	 * @return bool|null Null if it's not an entity, otherwise true if it's used.
-	 */
-	public function is_used( $post_id ) {
-
-		if ( false === $this->is_entity( $post_id ) ) {
-			return null;
-		}
-		// Retrieve the post
-		$entity = get_post( $post_id );
-
-		global $wpdb;
-		// Retrieve Wordlift relation instances table name
-		$table_name = wl_core_get_relation_instances_table_name();
-
-		// Check is it's referenced / related to another post / entity
-		$stmt = $wpdb->prepare(
-			"SELECT COUNT(*) FROM $table_name WHERE  object_id = %d",
-			$entity->ID
-		);
-
-		// Perform the query
-		$relation_instances = (int) $wpdb->get_var( $stmt );
-		// If there is at least one relation instance for the current entity, then it's used
-		if ( 0 < $relation_instances ) {
-			return true;
-		}
-
-		// Check if the entity uri is used as meta_value
-		$stmt = $wpdb->prepare(
-			"SELECT COUNT(*) FROM $wpdb->postmeta WHERE post_id != %d AND meta_value = %s",
-			$entity->ID,
-			wl_get_entity_uri( $entity->ID )
-		);
-		// Perform the query
-		$meta_instances = (int) $wpdb->get_var( $stmt );
-
-		// If there is at least one meta that refers the current entity uri, then current entity is used
-		if ( 0 < $meta_instances ) {
-			return true;
-		}
-
-		// If we are here, it means the current entity is not used at the moment
-		return false;
-	}
-
-	/**
-	 * Determines whether a given uri is an internal uri or not.
-	 *
-	 * @since 3.3.2
-	 *
-	 * @param int $uri An uri.
-	 *
-	 * @return true if the uri internal to the current dataset otherwise false.
-	 */
-	public function is_internal_uri( $uri ) {
-
-		return ( 0 === strrpos( $uri, wl_configuration_get_redlink_dataset_uri() ) );
-	}
-
-	/**
-	 * Preload the provided URIs in the local cache.
-	 *
-	 * This function will populate the local `$uri_to_post` array by running a
-	 * single query with all the URIs and returning the mappings in the array.
-	 *
-	 * @since 3.16.1
-	 *
-	 * @param array $uris An array of URIs.
-	 */
-	public function preload_uris( $uris ) {
-
-		$that          = $this;
-		$external_uris = array_filter( $uris, function ( $item ) use ( $that ) {
-			return ! $that->is_internal_uri( $item );
-		} );
-
-		$query_args = array(
-			// See https://github.com/insideout10/wordlift-plugin/issues/654.
-			'ignore_sticky_posts' => 1,
-			'numberposts'         => - 1,
-			'post_status'         => 'any',
-			'post_type'           => Wordlift_Entity_Service::valid_entity_post_types(),
-			'meta_query'          => array(
-				array(
-					'key'     => WL_ENTITY_URL_META_NAME,
-					'value'   => $uris,
-					'compare' => 'IN',
-				),
-			),
-		);
-
-		// Only if the current uri is not an internal uri, entity search is
-		// performed also looking at sameAs values.
-		//
-		// This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
-		if ( 0 < count( $external_uris ) ) {
-
-			$query_args['meta_query']['relation'] = 'OR';
-			$query_args['meta_query'][]           = array(
-				'key'     => Wordlift_Schema_Service::FIELD_SAME_AS,
-				'value'   => $external_uris,
-				'compare' => 'IN',
-			);
-
-		}
-
-		// Get the posts.
-		$posts = get_posts( $query_args );
-
-		// Populate the array. We reinitialize the array on purpose because
-		// we don't want these data to long live.
-		$this->uri_to_post = array_reduce( $posts, function ( $carry, $item ) use ( $that ) {
-			return $carry
-				   // Get the URI related to the post and fill them with the item id.
-				   + array_fill_keys( $that->get_uris( $item->ID ), $item );
-		}, array() );
-
-		// Add the not found URIs.
-		$this->uri_to_post += array_fill_keys( $uris, null );
-
-		$this->log->debug( count( $this->uri_to_post ) . " URI(s) preloaded." );
-
-	}
-
-	/**
-	 * Reset the URI to post local cache.
-	 *
-	 * @since 3.16.1
-	 */
-	public function reset_uris() {
-
-		$this->uri_to_post = array();
-
-	}
-
-	/**
-	 * Get all the URIs (item id and same as) related to a post.
-	 *
-	 * @since 3.16.1
-	 *
-	 * @param int $post_id The {@link WP_Post) id.
-	 *
-	 * @return array An array of URIs.
-	 */
-	public function get_uris( $post_id ) {
-
-		return get_post_meta( $post_id, WL_ENTITY_URL_META_NAME )
-			   + get_post_meta( $post_id, Wordlift_Schema_Service::FIELD_SAME_AS );
-	}
-
-
-	/**
-	 * Find entity posts by the entity URI. Entity as searched by their entity URI or same as.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param string $uri The entity URI.
-	 *
-	 * @return WP_Post|null A WP_Post instance or null if not found.
-	 */
-	public function get_entity_post_by_uri( $uri ) {
-
-		$this->log->trace( "Getting an entity post for URI $uri..." );
-
-		// Check if we've been provided with a value otherwise return null.
-		if ( empty( $uri ) ) {
-			return null;
-		}
-
-		// If the URI is cached, return the cached post.
-		if ( array_key_exists( $uri, $this->uri_to_post ) ) {
-			$this->log->debug( "Returning cached post for $uri..." );
-
-			return $this->uri_to_post[ $uri ];
-		}
-
-		$this->log->debug( "Querying post for $uri..." );
-
-		$query_args = array(
-			// See https://github.com/insideout10/wordlift-plugin/issues/654.
-			'ignore_sticky_posts' => 1,
-			'posts_per_page'      => 1,
-			'post_status'         => 'any',
-			'post_type'           => Wordlift_Entity_Service::valid_entity_post_types(),
-			'meta_query'          => array(
-				array(
-					'key'     => WL_ENTITY_URL_META_NAME,
-					'value'   => $uri,
-					'compare' => '=',
-				),
-			),
-			// The following query can be avoided, it's superfluous since
-			// we're looking for a post with a specific Entity URI. This query
-			// may in fact consume up to 50% of the timing necessary to load a
-			// page.
-			//
-			// See https://github.com/insideout10/wordlift-plugin/issues/674.
-			//			'tax_query'           => array(
-			//				'relation' => 'AND',
-			//				array(
-			//					'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
-			//					'operator' => 'EXISTS',
-			//				),
-			//				array(
-			//					'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
-			//					'field'    => 'slug',
-			//					'terms'    => 'article',
-			//					'operator' => 'NOT IN',
-			//				),
-			//			),
-		);
-
-		// Only if the current uri is not an internal uri, entity search is
-		// performed also looking at sameAs values.
-		//
-		// This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
-		if ( ! $this->is_internal_uri( $uri ) ) {
-
-			$query_args['meta_query']['relation'] = 'OR';
-			$query_args['meta_query'][]           = array(
-				'key'     => Wordlift_Schema_Service::FIELD_SAME_AS,
-				'value'   => $uri,
-				'compare' => '=',
-			);
-		}
-
-		$posts = get_posts( $query_args );
-
-		// Return null if no post is found.
-		if ( 0 === count( $posts ) ) {
-			$this->log->warn( "No post for URI $uri." );
-
-			return null;
-		}
-
-		// Return the found post.
-		return current( $posts );
-	}
-
-	/**
-	 * Fires once a post has been saved. This function uses the $_REQUEST, therefore
-	 * we check that the post we're saving is the current post.
-	 *
-	 * @see   https://github.com/insideout10/wordlift-plugin/issues/363
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param int     $post_id Post ID.
-	 * @param WP_Post $post    Post object.
-	 * @param bool    $update  Whether this is an existing post being updated or not.
-	 */
-	public function save_post( $post_id, $post, $update ) {
-
-		// Avoid doing anything if post is autosave or a revision.
-		if ( wp_is_post_autosave( $post ) || wp_is_post_revision( $post ) ) {
-			return;
-		}
-
-		// We're setting the alternative label that have been provided via the UI
-		// (in fact we're using $_REQUEST), while save_post may be also called
-		// programmatically by some other function: we need to check therefore if
-		// the $post_id in the save_post call matches the post id set in the request.
-		//
-		// If this is not the current post being saved or if it's not an entity, return.
-		if ( ! isset( $_REQUEST['post_ID'] ) || $_REQUEST['post_ID'] != $post_id || ! $this->is_entity( $post_id ) ) {
-			return;
-		}
-
-		// Get the alt labels from the request (or empty array).
-		$alt_labels = isset( $_REQUEST['wl_alternative_label'] ) ? $_REQUEST['wl_alternative_label'] : array();
-
-		// Set the alternative labels.
-		$this->set_alternative_labels( $post_id, $alt_labels );
-
-	}
-
-	/**
-	 * Set the alternative labels.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param int   $post_id    The post id.
-	 * @param array $alt_labels An array of labels.
-	 */
-	public function set_alternative_labels( $post_id, $alt_labels ) {
-
-		// Force $alt_labels to be an array
-		if ( ! is_array( $alt_labels ) ) {
-			$alt_labels = array( $alt_labels );
-		}
-
-		$this->log->debug( "Setting alternative labels [ post id :: $post_id ][ alt labels :: " . implode( ',', $alt_labels ) . " ]" );
-
-		// Delete all the existing alternate labels.
-		delete_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
-
-		// Set the alternative labels.
-		foreach ( $alt_labels as $alt_label ) {
-			if ( ! empty( $alt_label ) ) {
-				add_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY, $alt_label );
-			}
-		}
-
-	}
-
-	/**
-	 * Retrieve the alternate labels.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param int $post_id Post id.
-	 *
-	 * @return mixed An array  of alternative labels.
-	 */
-	public function get_alternative_labels( $post_id ) {
-
-		return get_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
-	}
-
-	/**
-	 * Retrieve the labels for an entity, i.e. the title + the synonyms.
-	 *
-	 * @since 3.12.0
-	 *
-	 * @param int $post_id The entity {@link WP_Post} id.
-	 *
-	 * @return array An array with the entity title and labels.
-	 */
-	public function get_labels( $post_id ) {
-
-		return array_merge( (array) get_the_title( $post_id ), $this->get_alternative_labels( $post_id ) );
-	}
-
-	/**
-	 * Fires before the permalink field in the edit form (this event is available in WP from 4.1.0).
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param WP_Post $post Post object.
-	 */
-	public function edit_form_before_permalink( $post ) {
-
-		// If it's not an entity, return.
-		if ( ! $this->is_entity( $post->ID ) ) {
-			return;
-		}
-
-		// Print the input template.
-		$this->ui_service->print_template( 'wl-tmpl-alternative-label-input', $this->get_alternative_label_input() );
-
-		// Print all the currently set alternative labels.
-		foreach ( $this->get_alternative_labels( $post->ID ) as $alt_label ) {
-
-			echo $this->get_alternative_label_input( $alt_label );
-
-		};
-
-		// Print the button.
-		$this->ui_service->print_button( 'wl-add-alternative-labels-button', __( 'Add more titles', 'wordlift' ) );
-
-	}
-
-	/**
-	 * Get the URI for the entity with the specified post id.
-	 *
-	 * @since 3.6.0
-	 *
-	 * @param int $post_id The entity post id.
-	 *
-	 * @return null|string The entity URI or NULL if not found or the dataset URI is not configured.
-	 */
-	public function get_uri( $post_id ) {
-
-		// If a null is given, nothing to do
-		if ( null == $post_id ) {
-			return null;
-		}
-
-		$uri = get_post_meta( $post_id, WL_ENTITY_URL_META_NAME, true );
-
-		// If the dataset uri is not properly configured, null is returned
-		if ( '' === wl_configuration_get_redlink_dataset_uri() ) {
-			return null;
-		}
-
-		// Set the URI if it isn't set yet.
-		$post_status = get_post_status( $post_id );
-		if ( empty( $uri ) && 'auto-draft' !== $post_status && 'revision' !== $post_status ) {
-			$uri = wl_build_entity_uri( $post_id );
-			wl_set_entity_uri( $post_id, $uri );
-		}
-
-		return $uri;
-	}
-
-
-	/**
-	 * Get the alternative label input HTML code.
-	 *
-	 * @since 3.2.0
-	 *
-	 * @param string $value The input value.
-	 *
-	 * @return string The input HTML code.
-	 */
-	private function get_alternative_label_input( $value = '' ) {
-
-		return sprintf( self::ALTERNATIVE_LABEL_INPUT_TEMPLATE, esc_attr( $value ), __( 'Delete', 'wordlift' ) );
-	}
-
-	/**
-	 * Get the number of entity posts published in this blog.
-	 *
-	 * @since 3.6.0
-	 *
-	 * @return int The number of published entity posts.
-	 */
-	public function count() {
-
-		$posts = get_posts( $this->add_criterias( array(
-			'post_status' => 'any',
-			'numberposts' => - 1,
-		) ) );
-
-		return count( $posts );
-	}
-
-	/**
-	 * Add the entity filtering criterias to the arguments for a `get_posts`
-	 * call.
-	 *
-	 * @since 3.15.0
-	 *
-	 * @param array $args The arguments for a `get_posts` call.
-	 *
-	 * @return array The arguments for a `get_posts` call.
-	 */
-	public static function add_criterias( $args ) {
-
-		// Build an optimal tax-query.
-		$tax_query = array(
-			'relation' => 'AND',
-			array(
-				'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
-				'operator' => 'EXISTS',
-			),
-			array(
-				'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
-				'field'    => 'slug',
-				'terms'    => 'article',
-				'operator' => 'NOT IN',
-			),
-		);
-
-		return $args + array(
-				'post_type' => Wordlift_Entity_Service::valid_entity_post_types(),
-				// Since 3.17.0: should this be faster?
-				'tax_query' => $tax_query,
-				//				'tax_query' => array(
-				//					array(
-				//						'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
-				//						'terms'    => self::get_entity_terms(),
-				//					),
-				//				),
-			);
-	}
+    /**
+     * A singleton instance of the Entity service.
+     *
+     * @since  3.2.0
+     * @access private
+     * @var \Wordlift_Entity_Service $instance A singleton instance of the Entity service.
+     */
+    private static $instance;
+
+    /**
+     * Create a Wordlift_Entity_Service instance.
+     *
+     * @since 3.2.0
+     *
+     * @param \Wordlift_UI_Service       $ui_service       The UI service.
+     * @param \Wordlift_Relation_Service $relation_service The {@link Wordlift_Relation_Service} instance.
+     */
+    public function __construct( $ui_service, $relation_service ) {
+
+        $this->log = Wordlift_Log_Service::get_logger( 'Wordlift_Entity_Service' );
+
+        $this->ui_service       = $ui_service;
+        $this->relation_service = $relation_service;
+
+        $this->reset_uris();
+
+        // Set the singleton instance.
+        self::$instance = $this;
+    }
+
+    /**
+     * Get the singleton instance of the Entity service.
+     *
+     * @since 3.2.0
+     * @return \Wordlift_Entity_Service The singleton instance of the Entity service.
+     */
+    public static function get_instance() {
+
+        return self::$instance;
+    }
+
+    /**
+     * Determines whether a post is an entity or not. Entity is in this context
+     * something which is not an article.
+     *
+     * @since 3.1.0
+     *
+     * @param int $post_id A post id.
+     *
+     * @return bool Return true if the post is an entity otherwise false.
+     */
+    public function is_entity( $post_id ) {
+
+        $terms = wp_get_object_terms( $post_id, Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME );
+
+        if ( 0 === count( $terms ) ) {
+            return false;
+        }
+
+        // We don't consider an `article` to be an entity.
+        if ( 'article' !== $terms[0]->slug ) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the proper classification scope for a given entity post
+     *
+     * @since 3.5.0
+     *
+     * @param integer $post_id An entity post id.
+     *
+     * @param string  $default The default classification scope, `what` if not
+     *                         provided.
+     *
+     * @return string Returns a classification scope (e.g. 'what').
+     */
+    public function get_classification_scope_for( $post_id, $default = WL_WHAT_RELATION ) {
+
+        if ( false === $this->is_entity( $post_id ) ) {
+            return $default;
+        }
+
+        // Retrieve the entity type
+        $entity_type_arr = Wordlift_Entity_Type_Service::get_instance()->get( $post_id );
+        $entity_type     = str_replace( 'wl-', '', $entity_type_arr['css_class'] );
+        // Retrieve classification boxes configuration
+        $classification_boxes = unserialize( WL_CORE_POST_CLASSIFICATION_BOXES );
+        foreach ( $classification_boxes as $cb ) {
+            if ( in_array( $entity_type, $cb['registeredTypes'] ) ) {
+                return $cb['id'];
+            }
+        }
+
+        return $default;
+    }
+
+    /**
+     * Check whether a {@link WP_Post} is used.
+     *
+     * @param int $post_id The {@link WP_Post}'s id.
+     *
+     * @return bool|null Null if it's not an entity, otherwise true if it's used.
+     */
+    public function is_used( $post_id ) {
+
+        if ( false === $this->is_entity( $post_id ) ) {
+            return null;
+        }
+        // Retrieve the post
+        $entity = get_post( $post_id );
+
+        global $wpdb;
+        // Retrieve Wordlift relation instances table name
+        $table_name = wl_core_get_relation_instances_table_name();
+
+        // Check is it's referenced / related to another post / entity
+        $stmt = $wpdb->prepare(
+            "SELECT COUNT(*) FROM $table_name WHERE  object_id = %d",
+            $entity->ID
+        );
+
+        // Perform the query
+        $relation_instances = (int) $wpdb->get_var( $stmt );
+        // If there is at least one relation instance for the current entity, then it's used
+        if ( 0 < $relation_instances ) {
+            return true;
+        }
+
+        // Check if the entity uri is used as meta_value
+        $stmt = $wpdb->prepare(
+            "SELECT COUNT(*) FROM $wpdb->postmeta WHERE post_id != %d AND meta_value = %s",
+            $entity->ID,
+            wl_get_entity_uri( $entity->ID )
+        );
+        // Perform the query
+        $meta_instances = (int) $wpdb->get_var( $stmt );
+
+        // If there is at least one meta that refers the current entity uri, then current entity is used
+        if ( 0 < $meta_instances ) {
+            return true;
+        }
+
+        // If we are here, it means the current entity is not used at the moment
+        return false;
+    }
+
+    /**
+     * Determines whether a given uri is an internal uri or not.
+     *
+     * @since 3.3.2
+     *
+     * @param int $uri An uri.
+     *
+     * @return true if the uri internal to the current dataset otherwise false.
+     */
+    public function is_internal_uri( $uri ) {
+
+        return ( 0 === strrpos( $uri, wl_configuration_get_redlink_dataset_uri() ) );
+    }
+
+    /**
+     * Preload the provided URIs in the local cache.
+     *
+     * This function will populate the local `$uri_to_post` array by running a
+     * single query with all the URIs and returning the mappings in the array.
+     *
+     * @since 3.16.1
+     *
+     * @param array $uris An array of URIs.
+     */
+    public function preload_uris( $uris ) {
+
+        $that          = $this;
+        $external_uris = array_filter( $uris, function ( $item ) use ( $that ) {
+            return ! $that->is_internal_uri( $item );
+        } );
+
+        $query_args = array(
+            // See https://github.com/insideout10/wordlift-plugin/issues/654.
+            'ignore_sticky_posts' => 1,
+            'numberposts'         => - 1,
+            'post_status'         => 'any',
+            'post_type'           => Wordlift_Entity_Service::valid_entity_post_types(),
+            'meta_query'          => array(
+                array(
+                    'key'     => WL_ENTITY_URL_META_NAME,
+                    'value'   => $uris,
+                    'compare' => 'IN',
+                ),
+            ),
+        );
+
+        // Only if the current uri is not an internal uri, entity search is
+        // performed also looking at sameAs values.
+        //
+        // This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
+        if ( 0 < count( $external_uris ) ) {
+
+            $query_args['meta_query']['relation'] = 'OR';
+            $query_args['meta_query'][]           = array(
+                'key'     => Wordlift_Schema_Service::FIELD_SAME_AS,
+                'value'   => $external_uris,
+                'compare' => 'IN',
+            );
+
+        }
+
+        // Get the posts.
+        $posts = get_posts( $query_args );
+
+        // Populate the array. We reinitialize the array on purpose because
+        // we don't want these data to long live.
+        $this->uri_to_post = array_reduce( $posts, function ( $carry, $item ) use ( $that ) {
+            return $carry
+                    // Get the URI related to the post and fill them with the item id.
+                   + array_fill_keys( $that->get_uris( $item->ID ), $item );
+        }, array() );
+
+        // Add the not found URIs.
+        $this->uri_to_post += array_fill_keys( $uris, null );
+
+        $this->log->debug( count( $this->uri_to_post ) . " URI(s) preloaded." );
+
+    }
+
+    /**
+     * Reset the URI to post local cache.
+     *
+     * @since 3.16.1
+     */
+    public function reset_uris() {
+
+        $this->uri_to_post = array();
+
+    }
+
+    /**
+     * Get all the URIs (item id and same as) related to a post.
+     *
+     * @since 3.16.1
+     *
+     * @param int $post_id The {@link WP_Post) id.
+     *
+     * @return array An array of URIs.
+     */
+    public function get_uris( $post_id ) {
+
+        return get_post_meta( $post_id, WL_ENTITY_URL_META_NAME )
+               + get_post_meta( $post_id, Wordlift_Schema_Service::FIELD_SAME_AS );
+    }
+
+
+    /**
+     * Find entity posts by the entity URI. Entity as searched by their entity URI or same as.
+     *
+     * @since 3.2.0
+     *
+     * @param string $uri The entity URI.
+     *
+     * @return WP_Post|null A WP_Post instance or null if not found.
+     */
+    public function get_entity_post_by_uri( $uri ) {
+
+        $this->log->trace( "Getting an entity post for URI $uri..." );
+
+        // Check if we've been provided with a value otherwise return null.
+        if ( empty( $uri ) ) {
+            return null;
+        }
+
+        // If the URI is cached, return the cached post.
+        if ( array_key_exists( $uri, $this->uri_to_post ) ) {
+            $this->log->debug( "Returning cached post for $uri..." );
+
+            return $this->uri_to_post[ $uri ];
+        }
+
+        $this->log->debug( "Querying post for $uri..." );
+
+        $query_args = array(
+            // See https://github.com/insideout10/wordlift-plugin/issues/654.
+            'ignore_sticky_posts' => 1,
+            'posts_per_page'      => 1,
+            'post_status'         => 'any',
+            'post_type'           => Wordlift_Entity_Service::valid_entity_post_types(),
+            'meta_query'          => array(
+                array(
+                    'key'     => WL_ENTITY_URL_META_NAME,
+                    'value'   => $uri,
+                    'compare' => '=',
+                ),
+            ),
+            // The following query can be avoided, it's superfluous since
+            // we're looking for a post with a specific Entity URI. This query
+            // may in fact consume up to 50% of the timing necessary to load a
+            // page.
+            //
+            // See https://github.com/insideout10/wordlift-plugin/issues/674.
+            //			'tax_query'           => array(
+            //				'relation' => 'AND',
+            //				array(
+            //					'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
+            //					'operator' => 'EXISTS',
+            //				),
+            //				array(
+            //					'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
+            //					'field'    => 'slug',
+            //					'terms'    => 'article',
+            //					'operator' => 'NOT IN',
+            //				),
+            //			),
+        );
+
+        // Only if the current uri is not an internal uri, entity search is
+        // performed also looking at sameAs values.
+        //
+        // This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
+        if ( ! $this->is_internal_uri( $uri ) ) {
+
+            $query_args['meta_query']['relation'] = 'OR';
+            $query_args['meta_query'][]           = array(
+                'key'     => Wordlift_Schema_Service::FIELD_SAME_AS,
+                'value'   => $uri,
+                'compare' => '=',
+            );
+        }
+
+        $posts = get_posts( $query_args );
+
+        // Return null if no post is found.
+        if ( 0 === count( $posts ) ) {
+            $this->log->warn( "No post for URI $uri." );
+
+            return null;
+        }
+
+        // Return the found post.
+        return current( $posts );
+    }
+
+    /**
+     * Fires once a post has been saved. This function uses the $_REQUEST, therefore
+     * we check that the post we're saving is the current post.
+     *
+     * @see   https://github.com/insideout10/wordlift-plugin/issues/363
+     *
+     * @since 3.2.0
+     *
+     * @param int     $post_id Post ID.
+     * @param WP_Post $post    Post object.
+     * @param bool    $update  Whether this is an existing post being updated or not.
+     */
+    public function save_post( $post_id, $post, $update ) {
+
+        // Avoid doing anything if post is autosave or a revision.
+        if ( wp_is_post_autosave( $post ) || wp_is_post_revision( $post ) ) {
+            return;
+        }
+
+        // We're setting the alternative label that have been provided via the UI
+        // (in fact we're using $_REQUEST), while save_post may be also called
+        // programmatically by some other function: we need to check therefore if
+        // the $post_id in the save_post call matches the post id set in the request.
+        //
+        // If this is not the current post being saved or if it's not an entity, return.
+        if ( ! isset( $_REQUEST['post_ID'] ) || $_REQUEST['post_ID'] != $post_id || ! $this->is_entity( $post_id ) ) {
+            return;
+        }
+
+        // Get the alt labels from the request (or empty array).
+        $alt_labels = isset( $_REQUEST['wl_alternative_label'] ) ? $_REQUEST['wl_alternative_label'] : array();
+
+        // Set the alternative labels.
+        $this->set_alternative_labels( $post_id, $alt_labels );
+
+    }
+
+    /**
+     * Set the alternative labels.
+     *
+     * @since 3.2.0
+     *
+     * @param int   $post_id    The post id.
+     * @param array $alt_labels An array of labels.
+     */
+    public function set_alternative_labels( $post_id, $alt_labels ) {
+
+        // Force $alt_labels to be an array
+        if ( ! is_array( $alt_labels ) ) {
+            $alt_labels = array( $alt_labels );
+        }
+
+        $this->log->debug( "Setting alternative labels [ post id :: $post_id ][ alt labels :: " . implode( ',', $alt_labels ) . " ]" );
+
+        // Delete all the existing alternate labels.
+        delete_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
+
+        // Set the alternative labels.
+        foreach ( $alt_labels as $alt_label ) {
+            if ( ! empty( $alt_label ) ) {
+                add_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY, $alt_label );
+            }
+        }
+
+    }
+
+    /**
+     * Retrieve the alternate labels.
+     *
+     * @since 3.2.0
+     *
+     * @param int $post_id Post id.
+     *
+     * @return mixed An array  of alternative labels.
+     */
+    public function get_alternative_labels( $post_id ) {
+
+        return get_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
+    }
+
+    /**
+     * Retrieve the labels for an entity, i.e. the title + the synonyms.
+     *
+     * @since 3.12.0
+     *
+     * @param int $post_id The entity {@link WP_Post} id.
+     *
+     * @return array An array with the entity title and labels.
+     */
+    public function get_labels( $post_id ) {
+
+        return array_merge( (array) get_the_title( $post_id ), $this->get_alternative_labels( $post_id ) );
+    }
+
+    /**
+     * Fires before the permalink field in the edit form (this event is available in WP from 4.1.0).
+     *
+     * @since 3.2.0
+     *
+     * @param WP_Post $post Post object.
+     */
+    public function edit_form_before_permalink( $post ) {
+
+        // If it's not an entity, return.
+        if ( ! $this->is_entity( $post->ID ) ) {
+            return;
+        }
+
+        // Print the input template.
+        $this->ui_service->print_template( 'wl-tmpl-alternative-label-input', $this->get_alternative_label_input() );
+
+        // Print all the currently set alternative labels.
+        foreach ( $this->get_alternative_labels( $post->ID ) as $alt_label ) {
+
+            echo $this->get_alternative_label_input( $alt_label );
+
+        };
+
+        // Print the button.
+        $this->ui_service->print_button( 'wl-add-alternative-labels-button', __( 'Add more titles', 'wordlift' ) );
+
+    }
+
+    /**
+     * Get the URI for the entity with the specified post id.
+     *
+     * @since 3.6.0
+     *
+     * @param int $post_id The entity post id.
+     *
+     * @return null|string The entity URI or NULL if not found or the dataset URI is not configured.
+     */
+    public function get_uri( $post_id ) {
+
+        // If a null is given, nothing to do
+        if ( null == $post_id ) {
+            return null;
+        }
+
+        $uri = get_post_meta( $post_id, WL_ENTITY_URL_META_NAME, true );
+
+        // If the dataset uri is not properly configured, null is returned
+        if ( '' === wl_configuration_get_redlink_dataset_uri() ) {
+            return null;
+        }
+
+        // Set the URI if it isn't set yet.
+        $post_status = get_post_status( $post_id );
+        if ( empty( $uri ) && 'auto-draft' !== $post_status && 'revision' !== $post_status ) {
+            $uri = wl_build_entity_uri( $post_id );
+            wl_set_entity_uri( $post_id, $uri );
+        }
+
+        return $uri;
+    }
+
+
+    /**
+     * Get the alternative label input HTML code.
+     *
+     * @since 3.2.0
+     *
+     * @param string $value The input value.
+     *
+     * @return string The input HTML code.
+     */
+    private function get_alternative_label_input( $value = '' ) {
+
+        return sprintf( self::ALTERNATIVE_LABEL_INPUT_TEMPLATE, esc_attr( $value ), __( 'Delete', 'wordlift' ) );
+    }
+
+    /**
+     * Get the number of entity posts published in this blog.
+     *
+     * @since 3.6.0
+     *
+     * @return int The number of published entity posts.
+     */
+    public function count() {
+
+        $posts = get_posts( $this->add_criterias( array(
+            'post_status' => 'any',
+            'numberposts' => - 1,
+        ) ) );
+
+        return count( $posts );
+    }
+
+    /**
+     * Add the entity filtering criterias to the arguments for a `get_posts`
+     * call.
+     *
+     * @since 3.15.0
+     *
+     * @param array $args The arguments for a `get_posts` call.
+     *
+     * @return array The arguments for a `get_posts` call.
+     */
+    public static function add_criterias( $args ) {
+
+        // Build an optimal tax-query.
+        $tax_query = array(
+            'relation' => 'AND',
+            array(
+                'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
+                'operator' => 'EXISTS',
+            ),
+            array(
+                'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
+                'field'    => 'slug',
+                'terms'    => 'article',
+                'operator' => 'NOT IN',
+            ),
+        );
+
+        return $args + array(
+                'post_type' => Wordlift_Entity_Service::valid_entity_post_types(),
+                // Since 3.17.0: should this be faster?
+                'tax_query' => $tax_query,
+                //				'tax_query' => array(
+                //					array(
+                //						'taxonomy' => Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME,
+                //						'terms'    => self::get_entity_terms(),
+                //					),
+                //				),
+            );
+    }
 
 //	/**
 //	 * Get the entity terms IDs which represent an entity.
@@ -667,97 +667,97 @@ 
 //		} ) );
 //	}
 
-	/**
-	 * Create a new entity.
-	 *
-	 * @since 3.9.0
-	 *
-	 * @param string $name     The entity name.
-	 * @param string $type_uri The entity's type URI.
-	 * @param null   $logo     The entity logo id (or NULL if none).
-	 * @param string $status   The post status, by default 'publish'.
-	 *
-	 * @return int|WP_Error The entity post id or a {@link WP_Error} in case the `wp_insert_post` call fails.
-	 */
-	public function create( $name, $type_uri, $logo = null, $status = 'publish' ) {
-
-		// Create an entity for the publisher.
-		$post_id = wp_insert_post( array(
-			'post_type'    => self::TYPE_NAME,
-			'post_title'   => $name,
-			'post_status'  => $status,
-			'post_content' => '',
-		) );
-
-		// Return the error if any.
-		if ( is_wp_error( $post_id ) ) {
-			return $post_id;
-		}
-
-		// Set the entity logo.
-		if ( $logo && is_numeric( $logo ) ) {
-			set_post_thumbnail( $post_id, $logo );
-		}
-
-		// Set the entity type.
-		Wordlift_Entity_Type_Service::get_instance()->set( $post_id, $type_uri );
-
-		return $post_id;
-	}
-
-	/**
-	 * Get the entities related to the one with the specified id. By default only
-	 * published entities will be returned.
-	 *
-	 * @since 3.10.0
-	 *
-	 * @param int    $id          The post id.
-	 * @param string $post_status The target post status (default = publish).
-	 *
-	 * @return array An array of post ids.
-	 */
-	public function get_related_entities( $id, $post_status = 'publish' ) {
-
-		return $this->relation_service->get_objects( $id, 'ids', null, $post_status );
-	}
-
-	/**
-	 * Get the list of entities.
-	 *
-	 * @since 3.12.2
-	 *
-	 * @param array $params Custom parameters for WordPress' own {@link get_posts} function.
-	 *
-	 * @return array An array of entity posts.
-	 */
-	public function get( $params = array() ) {
-
-		// Set the defaults.
-		$defaults = array( 'post_type' => 'entity' );
-
-		// Merge the defaults with the provided parameters.
-		$args = wp_parse_args( $params, $defaults );
-
-		// Call the `get_posts` function.
-		return get_posts( $args );
-	}
-
-	/**
-	 * The list of post type names which can be used for entities
-	 *
-	 * Criteria is that the post type is public. The list of valid post types
-	 * can be overridden with a filter.
-	 *
-	 * @since 3.15.0
-	 *
-	 * @return array Array containing the names of the valid post types.
-	 */
-	static function valid_entity_post_types() {
-
-		// Ignore builtins in the call to avoid getting attachments.
-		$post_types = array( 'post', 'page', self::TYPE_NAME );
-
-		return apply_filters( 'wl_valid_entity_post_types', $post_types );
-	}
+    /**
+     * Create a new entity.
+     *
+     * @since 3.9.0
+     *
+     * @param string $name     The entity name.
+     * @param string $type_uri The entity's type URI.
+     * @param null   $logo     The entity logo id (or NULL if none).
+     * @param string $status   The post status, by default 'publish'.
+     *
+     * @return int|WP_Error The entity post id or a {@link WP_Error} in case the `wp_insert_post` call fails.
+     */
+    public function create( $name, $type_uri, $logo = null, $status = 'publish' ) {
+
+        // Create an entity for the publisher.
+        $post_id = wp_insert_post( array(
+            'post_type'    => self::TYPE_NAME,
+            'post_title'   => $name,
+            'post_status'  => $status,
+            'post_content' => '',
+        ) );
+
+        // Return the error if any.
+        if ( is_wp_error( $post_id ) ) {
+            return $post_id;
+        }
+
+        // Set the entity logo.
+        if ( $logo && is_numeric( $logo ) ) {
+            set_post_thumbnail( $post_id, $logo );
+        }
+
+        // Set the entity type.
+        Wordlift_Entity_Type_Service::get_instance()->set( $post_id, $type_uri );
+
+        return $post_id;
+    }
+
+    /**
+     * Get the entities related to the one with the specified id. By default only
+     * published entities will be returned.
+     *
+     * @since 3.10.0
+     *
+     * @param int    $id          The post id.
+     * @param string $post_status The target post status (default = publish).
+     *
+     * @return array An array of post ids.
+     */
+    public function get_related_entities( $id, $post_status = 'publish' ) {
+
+        return $this->relation_service->get_objects( $id, 'ids', null, $post_status );
+    }
+
+    /**
+     * Get the list of entities.
+     *
+     * @since 3.12.2
+     *
+     * @param array $params Custom parameters for WordPress' own {@link get_posts} function.
+     *
+     * @return array An array of entity posts.
+     */
+    public function get( $params = array() ) {
+
+        // Set the defaults.
+        $defaults = array( 'post_type' => 'entity' );
+
+        // Merge the defaults with the provided parameters.
+        $args = wp_parse_args( $params, $defaults );
+
+        // Call the `get_posts` function.
+        return get_posts( $args );
+    }
+
+    /**
+     * The list of post type names which can be used for entities
+     *
+     * Criteria is that the post type is public. The list of valid post types
+     * can be overridden with a filter.
+     *
+     * @since 3.15.0
+     *
+     * @return array Array containing the names of the valid post types.
+     */
+    static function valid_entity_post_types() {
+
+        // Ignore builtins in the call to avoid getting attachments.
+        $post_types = array( 'post', 'page', self::TYPE_NAME );
+
+        return apply_filters( 'wl_valid_entity_post_types', $post_types );
+    }
 
 }

Spacing +102 added lines, -102 removed lines

@@ -85,9 +85,9 @@ 
 	 * @param \Wordlift_UI_Service       $ui_service       The UI service.
 	 * @param \Wordlift_Relation_Service $relation_service The {@link Wordlift_Relation_Service} instance.
 	 */
-	public function __construct( $ui_service, $relation_service ) {
+	public function __construct($ui_service, $relation_service) {
 
-		$this->log = Wordlift_Log_Service::get_logger( 'Wordlift_Entity_Service' );
+		$this->log = Wordlift_Log_Service::get_logger('Wordlift_Entity_Service');
 
 		$this->ui_service       = $ui_service;
 		$this->relation_service = $relation_service;
@@ -119,16 +119,16 @@ 
 	 *
 	 * @return bool Return true if the post is an entity otherwise false.
 	 */
-	public function is_entity( $post_id ) {
+	public function is_entity($post_id) {
 
-		$terms = wp_get_object_terms( $post_id, Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME );
+		$terms = wp_get_object_terms($post_id, Wordlift_Entity_Types_Taxonomy_Service::TAXONOMY_NAME);
 
-		if ( 0 === count( $terms ) ) {
+		if (0 === count($terms)) {
 			return false;
 		}
 
 		// We don't consider an `article` to be an entity.
-		if ( 'article' !== $terms[0]->slug ) {
+		if ('article' !== $terms[0]->slug) {
 			return true;
 		}
 
@@ -147,19 +147,19 @@ 
 	 *
 	 * @return string Returns a classification scope (e.g. 'what').
 	 */
-	public function get_classification_scope_for( $post_id, $default = WL_WHAT_RELATION ) {
+	public function get_classification_scope_for($post_id, $default = WL_WHAT_RELATION) {
 
-		if ( false === $this->is_entity( $post_id ) ) {
+		if (false === $this->is_entity($post_id)) {
 			return $default;
 		}
 
 		// Retrieve the entity type
-		$entity_type_arr = Wordlift_Entity_Type_Service::get_instance()->get( $post_id );
-		$entity_type     = str_replace( 'wl-', '', $entity_type_arr['css_class'] );
+		$entity_type_arr = Wordlift_Entity_Type_Service::get_instance()->get($post_id);
+		$entity_type     = str_replace('wl-', '', $entity_type_arr['css_class']);
 		// Retrieve classification boxes configuration
-		$classification_boxes = unserialize( WL_CORE_POST_CLASSIFICATION_BOXES );
-		foreach ( $classification_boxes as $cb ) {
-			if ( in_array( $entity_type, $cb['registeredTypes'] ) ) {
+		$classification_boxes = unserialize(WL_CORE_POST_CLASSIFICATION_BOXES);
+		foreach ($classification_boxes as $cb) {
+			if (in_array($entity_type, $cb['registeredTypes'])) {
 				return $cb['id'];
 			}
 		}
@@ -174,13 +174,13 @@ 
 	 *
 	 * @return bool|null Null if it's not an entity, otherwise true if it's used.
 	 */
-	public function is_used( $post_id ) {
+	public function is_used($post_id) {
 
-		if ( false === $this->is_entity( $post_id ) ) {
+		if (false === $this->is_entity($post_id)) {
 			return null;
 		}
 		// Retrieve the post
-		$entity = get_post( $post_id );
+		$entity = get_post($post_id);
 
 		global $wpdb;
 		// Retrieve Wordlift relation instances table name
@@ -193,9 +193,9 @@ 
 		);
 
 		// Perform the query
-		$relation_instances = (int) $wpdb->get_var( $stmt );
+		$relation_instances = (int) $wpdb->get_var($stmt);
 		// If there is at least one relation instance for the current entity, then it's used
-		if ( 0 < $relation_instances ) {
+		if (0 < $relation_instances) {
 			return true;
 		}
 
@@ -203,13 +203,13 @@ 
 		$stmt = $wpdb->prepare(
 			"SELECT COUNT(*) FROM $wpdb->postmeta WHERE post_id != %d AND meta_value = %s",
 			$entity->ID,
-			wl_get_entity_uri( $entity->ID )
+			wl_get_entity_uri($entity->ID)
 		);
 		// Perform the query
-		$meta_instances = (int) $wpdb->get_var( $stmt );
+		$meta_instances = (int) $wpdb->get_var($stmt);
 
 		// If there is at least one meta that refers the current entity uri, then current entity is used
-		if ( 0 < $meta_instances ) {
+		if (0 < $meta_instances) {
 			return true;
 		}
 
@@ -226,9 +226,9 @@ 
 	 *
 	 * @return true if the uri internal to the current dataset otherwise false.
 	 */
-	public function is_internal_uri( $uri ) {
+	public function is_internal_uri($uri) {
 
-		return ( 0 === strrpos( $uri, wl_configuration_get_redlink_dataset_uri() ) );
+		return (0 === strrpos($uri, wl_configuration_get_redlink_dataset_uri()));
 	}
 
 	/**
@@ -241,17 +241,17 @@ 
 	 *
 	 * @param array $uris An array of URIs.
 	 */
-	public function preload_uris( $uris ) {
+	public function preload_uris($uris) {
 
 		$that          = $this;
-		$external_uris = array_filter( $uris, function ( $item ) use ( $that ) {
-			return ! $that->is_internal_uri( $item );
+		$external_uris = array_filter($uris, function($item) use ($that) {
+			return ! $that->is_internal_uri($item);
 		} );
 
 		$query_args = array(
 			// See https://github.com/insideout10/wordlift-plugin/issues/654.
 			'ignore_sticky_posts' => 1,
-			'numberposts'         => - 1,
+			'numberposts'         => -1,
 			'post_status'         => 'any',
 			'post_type'           => Wordlift_Entity_Service::valid_entity_post_types(),
 			'meta_query'          => array(
@@ -267,7 +267,7 @@ 
 		// performed also looking at sameAs values.
 		//
 		// This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
-		if ( 0 < count( $external_uris ) ) {
+		if (0 < count($external_uris)) {
 
 			$query_args['meta_query']['relation'] = 'OR';
 			$query_args['meta_query'][]           = array(
@@ -279,20 +279,20 @@ 
 		}
 
 		// Get the posts.
-		$posts = get_posts( $query_args );
+		$posts = get_posts($query_args);
 
 		// Populate the array. We reinitialize the array on purpose because
 		// we don't want these data to long live.
-		$this->uri_to_post = array_reduce( $posts, function ( $carry, $item ) use ( $that ) {
+		$this->uri_to_post = array_reduce($posts, function($carry, $item) use ($that) {
 			return $carry
 				   // Get the URI related to the post and fill them with the item id.
-				   + array_fill_keys( $that->get_uris( $item->ID ), $item );
-		}, array() );
+				   + array_fill_keys($that->get_uris($item->ID), $item);
+		}, array());
 
 		// Add the not found URIs.
-		$this->uri_to_post += array_fill_keys( $uris, null );
+		$this->uri_to_post += array_fill_keys($uris, null);
 
-		$this->log->debug( count( $this->uri_to_post ) . " URI(s) preloaded." );
+		$this->log->debug(count($this->uri_to_post)." URI(s) preloaded.");
 
 	}
 
@@ -316,10 +316,10 @@ 
 	 *
 	 * @return array An array of URIs.
 	 */
-	public function get_uris( $post_id ) {
+	public function get_uris($post_id) {
 
-		return get_post_meta( $post_id, WL_ENTITY_URL_META_NAME )
-			   + get_post_meta( $post_id, Wordlift_Schema_Service::FIELD_SAME_AS );
+		return get_post_meta($post_id, WL_ENTITY_URL_META_NAME)
+			   + get_post_meta($post_id, Wordlift_Schema_Service::FIELD_SAME_AS);
 	}
 
 
@@ -332,23 +332,23 @@ 
 	 *
 	 * @return WP_Post|null A WP_Post instance or null if not found.
 	 */
-	public function get_entity_post_by_uri( $uri ) {
+	public function get_entity_post_by_uri($uri) {
 
-		$this->log->trace( "Getting an entity post for URI $uri..." );
+		$this->log->trace("Getting an entity post for URI $uri...");
 
 		// Check if we've been provided with a value otherwise return null.
-		if ( empty( $uri ) ) {
+		if (empty($uri)) {
 			return null;
 		}
 
 		// If the URI is cached, return the cached post.
-		if ( array_key_exists( $uri, $this->uri_to_post ) ) {
-			$this->log->debug( "Returning cached post for $uri..." );
+		if (array_key_exists($uri, $this->uri_to_post)) {
+			$this->log->debug("Returning cached post for $uri...");
 
-			return $this->uri_to_post[ $uri ];
+			return $this->uri_to_post[$uri];
 		}
 
-		$this->log->debug( "Querying post for $uri..." );
+		$this->log->debug("Querying post for $uri...");
 
 		$query_args = array(
 			// See https://github.com/insideout10/wordlift-plugin/issues/654.
@@ -388,7 +388,7 @@ 
 		// performed also looking at sameAs values.
 		//
 		// This solve issues like https://github.com/insideout10/wordlift-plugin/issues/237
-		if ( ! $this->is_internal_uri( $uri ) ) {
+		if ( ! $this->is_internal_uri($uri)) {
 
 			$query_args['meta_query']['relation'] = 'OR';
 			$query_args['meta_query'][]           = array(
@@ -398,17 +398,17 @@ 
 			);
 		}
 
-		$posts = get_posts( $query_args );
+		$posts = get_posts($query_args);
 
 		// Return null if no post is found.
-		if ( 0 === count( $posts ) ) {
-			$this->log->warn( "No post for URI $uri." );
+		if (0 === count($posts)) {
+			$this->log->warn("No post for URI $uri.");
 
 			return null;
 		}
 
 		// Return the found post.
-		return current( $posts );
+		return current($posts);
 	}
 
 	/**
@@ -423,10 +423,10 @@ 
 	 * @param WP_Post $post    Post object.
 	 * @param bool    $update  Whether this is an existing post being updated or not.
 	 */
-	public function save_post( $post_id, $post, $update ) {
+	public function save_post($post_id, $post, $update) {
 
 		// Avoid doing anything if post is autosave or a revision.
-		if ( wp_is_post_autosave( $post ) || wp_is_post_revision( $post ) ) {
+		if (wp_is_post_autosave($post) || wp_is_post_revision($post)) {
 			return;
 		}
 
@@ -436,15 +436,15 @@ 
 		// the $post_id in the save_post call matches the post id set in the request.
 		//
 		// If this is not the current post being saved or if it's not an entity, return.
-		if ( ! isset( $_REQUEST['post_ID'] ) || $_REQUEST['post_ID'] != $post_id || ! $this->is_entity( $post_id ) ) {
+		if ( ! isset($_REQUEST['post_ID']) || $_REQUEST['post_ID'] != $post_id || ! $this->is_entity($post_id)) {
 			return;
 		}
 
 		// Get the alt labels from the request (or empty array).
-		$alt_labels = isset( $_REQUEST['wl_alternative_label'] ) ? $_REQUEST['wl_alternative_label'] : array();
+		$alt_labels = isset($_REQUEST['wl_alternative_label']) ? $_REQUEST['wl_alternative_label'] : array();
 
 		// Set the alternative labels.
-		$this->set_alternative_labels( $post_id, $alt_labels );
+		$this->set_alternative_labels($post_id, $alt_labels);
 
 	}
 
@@ -456,22 +456,22 @@ 
 	 * @param int   $post_id    The post id.
 	 * @param array $alt_labels An array of labels.
 	 */
-	public function set_alternative_labels( $post_id, $alt_labels ) {
+	public function set_alternative_labels($post_id, $alt_labels) {
 
 		// Force $alt_labels to be an array
-		if ( ! is_array( $alt_labels ) ) {
-			$alt_labels = array( $alt_labels );
+		if ( ! is_array($alt_labels)) {
+			$alt_labels = array($alt_labels);
 		}
 
-		$this->log->debug( "Setting alternative labels [ post id :: $post_id ][ alt labels :: " . implode( ',', $alt_labels ) . " ]" );
+		$this->log->debug("Setting alternative labels [ post id :: $post_id ][ alt labels :: ".implode(',', $alt_labels)." ]");
 
 		// Delete all the existing alternate labels.
-		delete_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
+		delete_post_meta($post_id, self::ALTERNATIVE_LABEL_META_KEY);
 
 		// Set the alternative labels.
-		foreach ( $alt_labels as $alt_label ) {
-			if ( ! empty( $alt_label ) ) {
-				add_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY, $alt_label );
+		foreach ($alt_labels as $alt_label) {
+			if ( ! empty($alt_label)) {
+				add_post_meta($post_id, self::ALTERNATIVE_LABEL_META_KEY, $alt_label);
 			}
 		}
 
@@ -486,9 +486,9 @@ 
 	 *
 	 * @return mixed An array  of alternative labels.
 	 */
-	public function get_alternative_labels( $post_id ) {
+	public function get_alternative_labels($post_id) {
 
-		return get_post_meta( $post_id, self::ALTERNATIVE_LABEL_META_KEY );
+		return get_post_meta($post_id, self::ALTERNATIVE_LABEL_META_KEY);
 	}
 
 	/**
@@ -500,9 +500,9 @@ 
 	 *
 	 * @return array An array with the entity title and labels.
 	 */
-	public function get_labels( $post_id ) {
+	public function get_labels($post_id) {
 
-		return array_merge( (array) get_the_title( $post_id ), $this->get_alternative_labels( $post_id ) );
+		return array_merge((array) get_the_title($post_id), $this->get_alternative_labels($post_id));
 	}
 
 	/**
@@ -512,25 +512,25 @@ 
 	 *
 	 * @param WP_Post $post Post object.
 	 */
-	public function edit_form_before_permalink( $post ) {
+	public function edit_form_before_permalink($post) {
 
 		// If it's not an entity, return.
-		if ( ! $this->is_entity( $post->ID ) ) {
+		if ( ! $this->is_entity($post->ID)) {
 			return;
 		}
 
 		// Print the input template.
-		$this->ui_service->print_template( 'wl-tmpl-alternative-label-input', $this->get_alternative_label_input() );
+		$this->ui_service->print_template('wl-tmpl-alternative-label-input', $this->get_alternative_label_input());
 
 		// Print all the currently set alternative labels.
-		foreach ( $this->get_alternative_labels( $post->ID ) as $alt_label ) {
+		foreach ($this->get_alternative_labels($post->ID) as $alt_label) {
 
-			echo $this->get_alternative_label_input( $alt_label );
+			echo $this->get_alternative_label_input($alt_label);
 
 		};
 
 		// Print the button.
-		$this->ui_service->print_button( 'wl-add-alternative-labels-button', __( 'Add more titles', 'wordlift' ) );
+		$this->ui_service->print_button('wl-add-alternative-labels-button', __('Add more titles', 'wordlift'));
 
 	}
 
@@ -543,25 +543,25 @@ 
 	 *
 	 * @return null|string The entity URI or NULL if not found or the dataset URI is not configured.
 	 */
-	public function get_uri( $post_id ) {
+	public function get_uri($post_id) {
 
 		// If a null is given, nothing to do
-		if ( null == $post_id ) {
+		if (null == $post_id) {
 			return null;
 		}
 
-		$uri = get_post_meta( $post_id, WL_ENTITY_URL_META_NAME, true );
+		$uri = get_post_meta($post_id, WL_ENTITY_URL_META_NAME, true);
 
 		// If the dataset uri is not properly configured, null is returned
-		if ( '' === wl_configuration_get_redlink_dataset_uri() ) {
+		if ('' === wl_configuration_get_redlink_dataset_uri()) {
 			return null;
 		}
 
 		// Set the URI if it isn't set yet.
-		$post_status = get_post_status( $post_id );
-		if ( empty( $uri ) && 'auto-draft' !== $post_status && 'revision' !== $post_status ) {
-			$uri = wl_build_entity_uri( $post_id );
-			wl_set_entity_uri( $post_id, $uri );
+		$post_status = get_post_status($post_id);
+		if (empty($uri) && 'auto-draft' !== $post_status && 'revision' !== $post_status) {
+			$uri = wl_build_entity_uri($post_id);
+			wl_set_entity_uri($post_id, $uri);
 		}
 
 		return $uri;
@@ -577,9 +577,9 @@ 
 	 *
 	 * @return string The input HTML code.
 	 */
-	private function get_alternative_label_input( $value = '' ) {
+	private function get_alternative_label_input($value = '') {
 
-		return sprintf( self::ALTERNATIVE_LABEL_INPUT_TEMPLATE, esc_attr( $value ), __( 'Delete', 'wordlift' ) );
+		return sprintf(self::ALTERNATIVE_LABEL_INPUT_TEMPLATE, esc_attr($value), __('Delete', 'wordlift'));
 	}
 
 	/**
@@ -591,12 +591,12 @@ 
 	 */
 	public function count() {
 
-		$posts = get_posts( $this->add_criterias( array(
+		$posts = get_posts($this->add_criterias(array(
 			'post_status' => 'any',
-			'numberposts' => - 1,
-		) ) );
+			'numberposts' => -1,
+		)));
 
-		return count( $posts );
+		return count($posts);
 	}
 
 	/**
@@ -609,7 +609,7 @@ 
 	 *
 	 * @return array The arguments for a `get_posts` call.
 	 */
-	public static function add_criterias( $args ) {
+	public static function add_criterias($args) {
 
 		// Build an optimal tax-query.
 		$tax_query = array(
@@ -679,28 +679,28 @@ 
 	 *
 	 * @return int|WP_Error The entity post id or a {@link WP_Error} in case the `wp_insert_post` call fails.
 	 */
-	public function create( $name, $type_uri, $logo = null, $status = 'publish' ) {
+	public function create($name, $type_uri, $logo = null, $status = 'publish') {
 
 		// Create an entity for the publisher.
-		$post_id = wp_insert_post( array(
+		$post_id = wp_insert_post(array(
 			'post_type'    => self::TYPE_NAME,
 			'post_title'   => $name,
 			'post_status'  => $status,
 			'post_content' => '',
-		) );
+		));
 
 		// Return the error if any.
-		if ( is_wp_error( $post_id ) ) {
+		if (is_wp_error($post_id)) {
 			return $post_id;
 		}
 
 		// Set the entity logo.
-		if ( $logo && is_numeric( $logo ) ) {
-			set_post_thumbnail( $post_id, $logo );
+		if ($logo && is_numeric($logo)) {
+			set_post_thumbnail($post_id, $logo);
 		}
 
 		// Set the entity type.
-		Wordlift_Entity_Type_Service::get_instance()->set( $post_id, $type_uri );
+		Wordlift_Entity_Type_Service::get_instance()->set($post_id, $type_uri);
 
 		return $post_id;
 	}
@@ -716,9 +716,9 @@ 
 	 *
 	 * @return array An array of post ids.
 	 */
-	public function get_related_entities( $id, $post_status = 'publish' ) {
+	public function get_related_entities($id, $post_status = 'publish') {
 
-		return $this->relation_service->get_objects( $id, 'ids', null, $post_status );
+		return $this->relation_service->get_objects($id, 'ids', null, $post_status);
 	}
 
 	/**
@@ -730,16 +730,16 @@ 
 	 *
 	 * @return array An array of entity posts.
 	 */
-	public function get( $params = array() ) {
+	public function get($params = array()) {
 
 		// Set the defaults.
-		$defaults = array( 'post_type' => 'entity' );
+		$defaults = array('post_type' => 'entity');
 
 		// Merge the defaults with the provided parameters.
-		$args = wp_parse_args( $params, $defaults );
+		$args = wp_parse_args($params, $defaults);
 
 		// Call the `get_posts` function.
-		return get_posts( $args );
+		return get_posts($args);
 	}
 
 	/**
@@ -755,9 +755,9 @@ 
 	static function valid_entity_post_types() {
 
 		// Ignore builtins in the call to avoid getting attachments.
-		$post_types = array( 'post', 'page', self::TYPE_NAME );
+		$post_types = array('post', 'page', self::TYPE_NAME);
 
-		return apply_filters( 'wl_valid_entity_post_types', $post_types );
+		return apply_filters('wl_valid_entity_post_types', $post_types);
 	}
 
 }