App\Http\Controllers\Laralum\RolesController::addPerm PHP Method

    public function addPerm($perm_id, $role_id)
    {
        Laralum::permissionToAccess('laralum.roles.access');
        $rel = Permission_Role::wherePermission_idAndRole_id($perm_id, $role_id)->first();
        if (!$rel) {
            $rel = new Permission_Role();
            $rel->permission_id = $perm_id;
            $rel->role_id = $role_id;
            $rel->save();
        }
    }