WP REST Blocks – Empty editor fix

wp-rest-blocks-empty-editor-fix.php

<?php
/**
 * Plugin Name: WP REST Blocks – Empty editor fix
 * Plugin URI:  https://gist.github.com/lukasbesch/ed9cdd5c7df0eb620b2b9cb48fd7935c
 * Description: Fixes the empty editor issue with the »WP REST Blocks« plugin on WordPress 5.9+. See https://github.com/spacedmonkey/wp-rest-blocks/issues/31
 * Version:     0.1.0
 * 
 * @see https://github.com/spacedmonkey/wp-rest-blocks/issues/31
 */

namespace WP_REST_Blocks\Hotfixes\EmptyEditorInWP5_9;

add_action( 'rest_api_init', __NAMESPACE__ . '\\wp_rest_blocks_init', 11 );

function wp_rest_blocks_init() {
	if ( ! function_exists('\\WP_REST_Blocks\\Posts\\get_post_types_with_editor') ) {
		return;
	}

	$types = \WP_REST_Blocks\Posts\get_post_types_with_editor();

	if ( empty( $types ) ) {
		return;
	}

	// This is only necessary if we are in the block editor at the moment.
	if (! function_exists('\\get_current_screen')) {
		return;
	}
	$screen = \get_current_screen();
	if ( ! ( $screen && method_exists( $screen, 'is_block_editor' ) && $screen->is_block_editor() ) ) {
		return;
	}

	global $wp_rest_additional_fields;
	foreach ( $types as $object_type ) {
		if ( ! isset( $wp_rest_additional_fields[ $object_type ][ 'blocks' ] ) ) {
			continue;
		}
		// Store the original args for later re-registration
		$args = $wp_rest_additional_fields[ $object_type ][ 'blocks' ];

		// "De-register" the field "blocks" using the global (unfortunately there is no unregister_rest_field function)
		unset( $wp_rest_additional_fields[ $object_type ][ 'blocks' ] );

		// Re-register the field under another key "parsed_blocks"
		\register_rest_field(
			$object_type,
			'parsed_blocks',
			$args
		);
	}
}

Hi,

Can you help me with the location of the file where I need to add this code to fix the issue?

Thanks in advance.

You can just drop this file into the plugins directory and activate it.

You can just drop this file into the plugins directory and activate it.