How to trigger FacetWP's indexer for posts managed by an ACF form

Created by Phil Kurth, Modified on Tue, 2 Aug, 2022 at 8:08 AM by Phil Kurth

If you're using FacetWP, you might find the newly created or updated posts aren't being indexed as you would expect.

The solution to this problem is via a simple code snippet that tells FacetWP to index any created/edited post object. You should be fine to place this snippet in a custom plugin, an MU plugin, or in your theme's functions.php file:

<?php

add_action( 'init', function () {

	if ( ! function_exists( 'AF' ) ) {
		trigger_error( 'AF() function is unavailable — the Advanced Forms plugin may not be active.' );
		return;
	}

	if ( ! function_exists( 'FWP' ) ) {
		trigger_error( 'FWP() function is unavailable — the FacetWP plugin may not be active.' );
		return;
	}

	// Check for a modified post ID.
	if ( ! empty( AF()->submission['post'] ) and is_int( AF()->submission['post'] ) ) {

		// Make sure FacetWP's indexer is available.
		if ( empty( FWP()->indexer ) ) {
			trigger_error( 'FWP()->indexer instance was not available — could not trigger index on post IDs.' );
			return;
		}

		// Pass the indexer the post ID.
		FWP()->indexer->index( AF()->submission['post'] );

	}
}, 30 );