Do a late flush the cache

Author: Marco Pereirinha

php/class-delivery.php

@@ -484,8 +484,6 @@ public function unsync_size_relationship( $attachment_id ) {
 		self::update_size_relations_public_id( $attachment_id, null );
 		self::update_size_relations_state( $attachment_id, 'disable' );
 		self::update_size_relations_transformations( $attachment_id, null );
-
-		do_action( 'cloudinary_flush_cache' );
 	}
 
 	/**
@@ -555,7 +553,6 @@ public static function update_size_relations_state( $attachment_id, $state ) {
 	 */
 	public static function update_size_relations_transformations( $attachment_id, $transformations ) {
 		Relate::update_transformations( $attachment_id, $transformations );
-		do_action( 'cloudinary_flush_cache' );
 	}
 
 	/**

php/relate/class-relationship.php

@@ -105,6 +105,7 @@ public function save() {
 		if ( ! $this->save_on_shutdown ) {
 			$this->save_on_shutdown = true;
 			add_action( 'shutdown', array( $this, 'do_save' ) );
+			add_action( 'shutdown', array( $this, 'flush_cache' ), 100 );
 		}
 	}
 
@@ -115,9 +116,23 @@ public function save() {
 	 */
 	public function do_save() {
 		global $wpdb;
-		$data = $this->get_data();
+		$data   = $this->get_data();
+		$update = false;
 
-		return $wpdb->update( Utils::get_relationship_table(), $data, array( 'id' => $data['id'] ), array( '%s' ), array( '%d' ) );// phpcs:ignore WordPress.DB
+		if ( ! empty( $data['id'] ) ) {
+			$update = $wpdb->update( Utils::get_relationship_table(), $data, array( 'id' => $data['id'] ), array( '%s' ), array( '%d' ) );// phpcs:ignore WordPress.DB
+		}
+
+		return $update;
+	}
+
+	/**
+	 * Flush the cache.
+	 *
+	 * @return void
+	 */
+	public function flush_cache() {
+		do_action( 'cloudinary_flush_cache', false );
 	}
 
 	/**