hide specific post_type from search results

Hello @maxgx

This would indeed be possible with some additional code. I’ve generated an example for you that seems to work. Would you mind giving it a try?

<?php
/**
 * Hide selected CPT(s) from Blocksy search for logged-out users.
 */
const MY_BLOCKED_SEARCH_CPTS = ['portfolio']; // change to your CPT slug(s)

/**
 * Normal search results page query.
 */
add_action('pre_get_posts', function ($query) {
	if (is_admin() && ! wp_doing_ajax()) {
		return;
	}

	if (! $query->is_search()) {
		return;
	}

	if (is_user_logged_in()) {
		return;
	}

	$blocked = MY_BLOCKED_SEARCH_CPTS;
	$post_type = $query->get('post_type');

	if (empty($post_type) || $post_type === 'any') {
		$post_type = get_post_types(['exclude_from_search' => false], 'names');
	} elseif (! is_array($post_type)) {
		$post_type = [$post_type];
	}

	$post_type = array_values(array_diff($post_type, $blocked));

	// Avoid empty post_type causing odd behavior.
	if (empty($post_type)) {
		$post_type = ['post'];
	}

	$query->set('post_type', $post_type);
}, 100);

/**
 * Blocksy live results (REST /wp/v2/search).
 */
add_filter('rest_post_search_query', function ($args, $request) {
	if (is_user_logged_in()) {
		return $args;
	}

	// Scope to Blocksy live search requests.
	if ((string) $request->get_param('ct_live_search') !== 'true') {
		return $args;
	}

	$blocked = MY_BLOCKED_SEARCH_CPTS;
	$post_type = $args['post_type'] ?? [];

	if (empty($post_type) || $post_type === 'any') {
		$post_type = get_post_types(
			['public' => true, 'show_in_rest' => true],
			'names'
		);
		unset($post_type['attachment']);
	} elseif (! is_array($post_type)) {
		$post_type = [$post_type];
	}

	$args['post_type'] = array_values(array_diff($post_type, $blocked));

	if (empty($args['post_type'])) {
		$args['post_type'] = ['post'];
	}

	return $args;
}, 1000, 2);

Let me know if this works for you.

Thanks,
Eduard

Thank you for the confirmation, @maxgx!