App\Http\Controllers\Laralum\BlogsController::addRel PHP Method

    public function addRel($blog_id, $role_id)
    {
        Laralum::permissionToAccess('laralum.blogs.access');
        $rel = Blog_Role::whereBlog_idAndRole_id($blog_id, $role_id)->first();
        if (!$rel) {
            $rel = new Blog_Role();
            $rel->blog_id = $blog_id;
            $rel->role_id = $role_id;
            $rel->save();
        }
    }