cssd-back/app/Policies/ItemPolicy.php

<?php

namespace App\Policies;

use App\User;
use App\Item;

class ItemPolicy
{
    public function showAll( User $User )
    {
        if ( $User->hasRole( 'Admin' ) )
            return true;
    }

    public function delete( User $User , Item $Item )
    {
        if ( $User->hasRole( 'Admin' ) ) {
            return true;
        } elseif ( $User->hasRole( 'Supervisor' ) ) {
            if ($Item->status == 0){
                return true;
            }
        }
    }

    public function update( User $User , Item $Item )
    {
        if (
            $User->hasRole( 'Admin' ) ||
            ( $User->hasRole( 'Supervisor' ) && $Item->user->medical_center_id == $User->medical_center_id ) ||
            $Item->user_id == $User->id
        )
            return true;
    }

    public function changeStatus( User $User )
    {
        if ( $User->hasRole( 'Admin|Supervisor' ) )
            return true;
    }

    public function changeRepair( User $User )
    {
        if ( $User->hasRole( 'Admin|Supervisor' ) )
            return true;
    }
}