Categories exlusion with gutenberg

The hook still fires with the block editor. What code are you using to add exclusions?

Yes the hook fires, but categories management may be a little different as all categories still listed, not only 2 as my code wants…

Here is my code :

function hide_categories_for_specific_user( $exclusions, $args ){
	if (($GLOBALS['pagenow'] === 'post.php' or $GLOBALS['pagenow'] === 'edit.php') and get_current_user_id() == 4) {
		$allowed_id = array('55', '99');
		$exterms = wp_parse_id_list( $allowed_id );
		foreach ( $exterms as $exterm ) {
			if ( empty($exclusions) ) {
				$exclusions = " AND ( t.term_id = " . intval($exterm) . " ";
			} else {
				$exclusions .= " OR t.term_id = " . intval($exterm) . " ";
			}
		}
		if ( !empty($exclusions) ) {
			$exclusions .= ')';
		}
	}
	return $exclusions;
}

add_filter( 'list_terms_exclusions', 'hide_categories_for_specific_user', 10, 2 );

Yeah, a little different. The categories are retrieved via the API so your ‘pagenow’ conditional prevents your code from being applied. You need an OR condition to check if REST_REQUEST constant is defined as true. Perhaps also check the referrer page to prevent other API requests from being restricted.

It works !

Thank you very very very much.