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

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