Grid Builder - Facets using ACF fields labels are not translated in frontend

Overview of the issue

When using Grid Builder with WPML and Advanced Custom Fields (ACF), there's a problem with Facets using custom fields. Even though the ACF field labels are translated in the backend, they are not reflected in the frontend.

Workaround

Please, make sure of having a full backup of your site before proceeding.

For Select fields

• Open your theme's functions.php file.
• Add the following code:

  // WPML Workaround for wpmlsupp-11647
  function wpml_wpmlsupp11647_translate_facet_choices( $choices, $facet ) {
  
  	if ( class_exists('Sitepress') ) {
  		foreach ($choices as &$choice) {
  			$string = $choice->facet_name;
  			$textdomain = 'facets';
  			$string_name = 'Facet: '.substr($string, 0, 20);
  		
  			if ( apply_filters('wpml_default_language', NULL ) == apply_filters( 'wpml_current_language', NULL )) {
  				do_action( 'wpml_register_single_string', $textdomain, $string_name, $string );
  			}	
  			// Apply the translation to the string
  			$choice->facet_name = apply_filters('wpml_translate_single_string', $string , $textdomain, $string_name);
  		}
  	}
  
  	return $choices;
  
  }
  
  add_filter( 'wp_grid_builder/facet/choices', 'wpml_wpmlsupp11647_translate_facet_choices', 10, 2 );
  

• Visit the page with the facets in the original language to register the strings.
• Go to WPML > String Translation page and translate the strings.

Note: Depending on how your Facets were built, this other snippet may be helpful:

// WPML Workaround for compsupp-7453
function wpml_compsupp7453_translate_facet_block_custom_field( $output ) {
 
    if ( class_exists('Sitepress') ) {
        if( is_string($output) ) {

            $string = $output;
            $textdomain = 'facets';
            $string_name = 'Facet: '.substr($string, 0, 20);
         
            if ( apply_filters('wpml_default_language', NULL ) == apply_filters( 'wpml_current_language', NULL )) {
                do_action( 'wpml_register_single_string', $textdomain, $string_name, $string );
            }   
            // Apply the translation to the string
            $output = apply_filters('wpml_translate_single_string', $string , $textdomain, $string_name);
        }
    }
 
    return $output ;
 
}
 
add_filter( 'wp_grid_builder/block/custom_field', 'wpml_compsupp7453_translate_facet_block_custom_field', 99, 2 );