Check if table is already joined in Laravel Query Builder

BaseModel.php

<?php

class BaseModel extends Eloquent {

    public static function isJoined($query, $table)
    {
        $joins = $query->getQuery()->joins;
        
        if($joins == null) {
            return false;
        }

        return in_array($table, array_map( function($join) {  return $join->table; }, $joins));
    }

}