Creative WPML filter

wpml-filter.php

<?php

remove_filter( 'relevanssi_hits_filter', 'relevanssi_wpml_filter' );
add_filter( 'relevanssi_hits_filter', 'creative_wpml_filter' );

function creative_wpml_filter( $data ) {
	$filtered_hits = array();
	foreach ( $data[0] as $hit ) {
		if ( is_integer( $hit ) ) {
			// In case "fields" is set to "ids", fetch the post object we need.
			$hit = get_post( $hit );
		}
		if ( isset( $hit->blog_id ) ) {
			// This is a multisite search.
			switch_to_blog( $hit->blog_id );
			if ( function_exists( 'icl_object_id' ) ) {
				// Reset the WPML cache when blog is switched, otherwise WPML
				// will be confused.
				global $wpml_post_translations;
				$wpml_post_translations->reload();
			}
		}

		global $sitepress;
		
		$curr_language = apply_filters( 'wpml_current_language', null );
		$post_language = apply_filters( 'wpml_post_language_details', null, $hit->ID );
		
		if ( $post_language['language_code'] === $curr_language ) {
			$filtered_hits[] = $hit;
		}

		if ( isset( $hit->blog_id ) ) {
			restore_current_blog();
		}

	}

	$query = '';
	if ( isset( $data[1] ) ) {
		$query = $data[1];
	}
	return array( $filtered_hits, $query );
}