Keep metas that allow getting the ID from given sync keys

Author: Marco Pereirinha

php/class-media.php

@@ -1508,6 +1508,12 @@ private function create_attachment( $asset, $public_id ) {
 			$this->update_post_meta( $attachment_id, Sync::META_KEYS['transformation'], $asset['transformations'] );
 		}
 
+		// Create a trackable key in post meta to allow getting public id from URL with transformations.
+		update_post_meta( $attachment_id, '_' . md5( $sync_key ), true );
+
+		// Create a trackable key in post meta to allow getting public id from URL.
+		update_post_meta( $attachment_id, '_' . md5( 'base_' . $public_id ), true );
+
 		// capture the delivery type.
 		$this->update_post_meta( $attachment_id, Sync::META_KEYS['delivery'], $asset['type'] );
 		// Capture the ALT Text.

php/media/class-upgrade.php

@@ -142,8 +142,8 @@ public function convert_cloudinary_version( $attachment_id ) {
 		if ( ! empty( $transformations ) ) {
 			$sync_key .= wp_json_encode( $transformations );
 		}
-		delete_post_meta( $attachment_id, '_' . md5( $sync_key ), true );
-		delete_post_meta( $attachment_id, '_' . md5( 'base_' . $public_id ), true );
+		update_post_meta( $attachment_id, '_' . md5( $sync_key ), true );
+		update_post_meta( $attachment_id, '_' . md5( 'base_' . $public_id ), true );
 		// Get a new uncached signature.
 		$this->sync->get_signature( $attachment_id, true );
 

php/sync/class-upload-sync.php

@@ -282,6 +282,13 @@ function ( $is_synced, $post_id ) use ( $attachment_id ) {
 			$this->media->update_post_meta( $attachment_id, Sync::META_KEYS['version'], $result['version'] );
 			// Set the delivery type.
 			$this->media->update_post_meta( $attachment_id, Sync::META_KEYS['delivery'], $result['type'] );
+
+			// Create a trackable key in post meta to allow getting public id from URL with transformations.
+			update_post_meta( $attachment_id, '_' . md5( $options['public_id'] ), true );
+
+			// Create a trackable key in post meta to allow getting public id from URL.
+			update_post_meta( $attachment_id, '_' . md5( 'base_' . $options['public_id'] ), true );
+
 			// Update signature for all that use the same method.
 			$this->sync->sync_signature_by_type( $attachment_id, $type );
 			// Update options and public_id as well (full sync).