invoiceninja/app/Providers/AuthServiceProvider.php

<?php

namespace App\Providers;

use Illuminate\Contracts\Auth\Access\Gate as GateContract;
use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;

class AuthServiceProvider extends ServiceProvider
{
    /**
     * The policy mappings for the application.
     *
     * @var array
     */
    protected $policies = [
        \App\Models\Client::class => \App\Policies\ClientPolicy::class,
        \App\Models\Credit::class => \App\Policies\CreditPolicy::class,
        \App\Models\Document::class => \App\Policies\DocumentPolicy::class,
        \App\Models\Expense::class => \App\Policies\ExpensePolicy::class,
        \App\Models\Invoice::class => \App\Policies\InvoicePolicy::class,
        \App\Models\Payment::class => \App\Policies\PaymentPolicy::class,
        \App\Models\Task::class => \App\Policies\TaskPolicy::class,
        \App\Models\Vendor::class => \App\Policies\VendorPolicy::class,
    ];
    
    /**
     * Register any application authentication / authorization services.
     *
     * @param  \Illuminate\Contracts\Auth\Access\Gate  $gate
     * @return void
     */
    public function boot(GateContract $gate)
    {
        foreach (get_class_methods(new \App\Policies\GenericEntityPolicy) as $method) {
            $gate->define($method, "App\Policies\GenericEntityPolicy@{$method}");
        }
        
        $this->registerPolicies($gate);
    }
}