facetwp convert colors

custom-hooks.php

<?php
/**
 ** facetwp's color addon uses either HTML colors names (HTML color names) or hex values
 ** the following can map color values that aren't saved in the correct format for indexing
 ** remember to do a full re-index in facetwp's settings after adding your code
 ** check the wp_facetwp_index table in your database if you need to verify indexing is in the
 ** correct format
 **/
add_filter( 'facetwp_index_row', function( $params, $class ) {
	if ( 'colors' == $params['facet_name'] ) { // change 'colors' to the name of your facet
		/**
		 ** create an array facet_value of your colors to map to hex colors without the #
		 ** for example for product attributes the attribute slug will be the facet_value
		 **/
		$color_map = array(
			'natural-grey'  => 'e8e8e8',
			'bright-red'    => 'FF0000',
			'sunny-yellow'  => 'FFFF00'
		);
		if ( array_key_exists( $params['facet_value'], $color_map ) ) {
			$params['facet_value'] = $color_map[$params['facet_value']];
			$params['facet_display_value'] = '#' . $params['facet_value'];
		}
	}
	return $params;
}, 10, 2 );