hotfix: phpcs error: introduce getter function for wp_post in the transformer

includes/transformer/class-base.php

@@ -28,6 +28,15 @@ abstract class Base {
 	 */
 	protected $wp_post;
 
+	/**
+	 * Getter function for this wp_post.
+	 *
+	 * @return WP_post This WordPress Post object.
+	 */
+	protected function get_wp_post() {
+		return $this->wp_post;
+	}
+
 	/**
 	 * Assign WP_Post Object to a specific transformer instance.
 	 *

includes/transformer/class-post.php

@@ -116,20 +116,18 @@ class Post extends Base {
 	 * @return \Activitypub\Activity\Base_Object The ActivityPub Object
 	 */
 	public function transform() {
-		if ( ! $this->wp_post ) {
+		$object  = new Base_Objet();
-			return;
+		$wp_post = $this->get_wp_post();
-		}
-		$object  = new Base_Object();
 
 		$object->set_id( $this->get_id() );
 		$object->set_url( $this->get_url() );
 		$object->set_type( $this->get_object_type() );
 
-		$published = \strtotime( $this->$wp_post->post_date_gmt );
+		$published = \strtotime( $wp_post->post_date_gmt );
 
 		$object->set_published( \gmdate( 'Y-m-d\TH:i:s\Z', $published ) );
 
-		$updated = \strtotime( $this->$wp_post->post_modified_gmt );
+		$updated = \strtotime( $wp_post->post_modified_gmt );
 
 		if ( $updated > $published ) {
 			$object->set_updated( \gmdate( 'Y-m-d\TH:i:s\Z', $updated ) );
@@ -138,7 +136,7 @@ class Post extends Base {
 		$object->set_attributed_to( $this->get_attributed_to() );
 		$object->set_content( $this->get_content() );
 		$object->set_content_map( $this->get_content_map );
-		$path = sprintf( 'users/%d/followers', intval( $this->$wp_post->post_author ) );
+		$path = sprintf( 'users/%d/followers', intval( $wp_post->post_author ) );
 
 		$object->set_to(
 			array(