Rule not found: isfieldofficer found in yii2

I have Groupdetails CRUD application.

In auth_item table, I created two roles namely

admin

fieldofficer

In auth_assignment, I assigned admin to Employee having id 29 and fieldofficer to Employee having id 13 and 28

In auth_rule, I added rule isfieldofficer

Now in models folder I create foll rule




<?php

namespace app\models;


use Yii;


use yii\rbac\Rule;

use app\models\Groupdetails;


/**

 * Checks if authorID matches user passed via params

 */

class FieldofficerRule extends Rule

{

    public $name = 'isfieldofficer';


    /**

     * @param string|int $user the user ID.

     * @param Item $item the role or permission that this rule is associated with

     * @param array $params parameters passed to ManagerInterface::checkAccess().

     * @return bool a value indicating whether the rule permits the role or permission it is associated with.

     */

    public function execute($user, $item, $params)

    {

        return isset($params['groupdetails']) ? $params['groupdetails']->EmpId == $user : false;

    }

}

?>



Now in actionView()

I have foll




public function actionView($id)

    {


        $model = $this->findModel($id);


        if(\Yii::$app->user->can('fieldofficer',['groupdetails'=>$model]))

        {


            return $this->render('view', [

            'model' => $this->findModel($id),

        ]);

        }

        else

        {

           throw new ForbiddenHttpException("You can't view other created groups details");


        }




    }



Now when I view, I got foll error:

Invalid Configuration – yii\base\InvalidConfigException

Rule not found: isfieldofficer