Algol Plus Ltd

add_filter( 'wdp_preloaded_list_user_roles', function ( $list ) {
	$groups = array();
	if ( function_exists( '_groups_get_tablename' ) ) {
		global $wpdb;
		$groups_table = _groups_get_tablename( 'group' );
		$groups = $wpdb->get_results( "SELECT * FROM $groups_table ORDER BY name" );
	}

	$groups = is_array( $groups ) ? $groups : array();

	foreach ( $groups as $group ) {
		$list[] = array(
			'id'   => '(group)' . strtolower( $group->name ),
			'text' => '(group) ' . $group->name,
		);
	}

	return $list;
} );

add_filter( 'wdp_current_user_roles', function ( $roles ) {
	$groups = array();
	$current_user_id = get_current_user_id();

	if ( function_exists( '_groups_get_tablename' ) && $current_user_id ) {
		global $wpdb;
		$groups_table = _groups_get_tablename( 'group' );
		$user_group_table = _groups_get_tablename( 'user_group' );
		$groups       = $wpdb->get_results( "SELECT * FROM {$groups_table} WHERE {$groups_table}.group_id IN (SELECT group_id FROM {$user_group_table} WHERE {$user_group_table}.user_id = {$current_user_id} ) ORDER BY name" );
	}

	$groups = is_array( $groups ) ? $groups : array();

	foreach ( $groups as $group ) {
		$roles[] = '(group)' . strtolower( $group->name );
	}

	return $roles;
} );