register_block_script_module_id( array $metadata, string $field_name, int $index ): string|false

In this article

Finds a script module ID for the selected block metadata field. It detects when a path to file was provided and optionally finds a corresponding asset file with details necessary to register the script module under with an automatically generated module ID. It returns unprocessed script module ID otherwise.

Parameters

$metadataarrayrequired
Block metadata.
$field_namestringrequired
Field name to pick from metadata.
$indexintoptional
Index of the script module ID to register when multiple items passed. Default 0.

Return

string|false Script module ID or false on failure.

Source

function register_block_script_module_id( $metadata, $field_name, $index = 0 ) {
	if ( empty( $metadata[ $field_name ] ) ) {
		return false;
	}

	$module_id = $metadata[ $field_name ];
	if ( is_array( $module_id ) ) {
		if ( empty( $module_id[ $index ] ) ) {
			return false;
		}
		$module_id = $module_id[ $index ];
	}

	$module_path = remove_block_asset_path_prefix( $module_id );
	if ( $module_id === $module_path ) {
		return $module_id;
	}

	$path                  = dirname( $metadata['file'] );
	$module_asset_raw_path = $path . '/' . substr_replace( $module_path, '.asset.php', - strlen( '.js' ) );
	$module_id             = generate_block_asset_handle( $metadata['name'], $field_name, $index );
	$module_asset_path     = wp_normalize_path(
		realpath( $module_asset_raw_path )
	);

	$module_path_norm = wp_normalize_path( realpath( $path . '/' . $module_path ) );
	$module_uri       = get_block_asset_url( $module_path_norm );

	$module_asset        = ! empty( $module_asset_path ) ? require $module_asset_path : array();
	$module_dependencies = isset( $module_asset['dependencies'] ) ? $module_asset['dependencies'] : array();
	$block_version       = isset( $metadata['version'] ) ? $metadata['version'] : false;
	$module_version      = isset( $module_asset['version'] ) ? $module_asset['version'] : $block_version;

	wp_register_script_module(
		$module_id,
		$module_uri,
		$module_dependencies,
		$module_version
	);

	return $module_id;
}

Changelog

VersionDescription
6.5.0Introduced.

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