Laravel 策略方法参数计数有问题

Question

尝试授权某些 NewsPolicy:

时出现以下错误

Too few arguments to function App\Policies\NewsPolicy::create(), 1 passed in laravel\framework\src\Illuminate\Auth\Access\Gate.php on line 706 and exactly 2 expected

我在命名空间 App\Models 下有一个 News 模型，在 App\Policies.

下有一个 NewsPolicy

我的 AuthServiceProvider 中还有自定义 Gate::guessPolicyNamesUsing() 和下一个回调：

Gate::guessPolicyNamesUsing(function ($modelClass) {
    return ['\App\Policies\' . class_basename($modelClass) . 'Policy'];
});

我发现 Laravel 出于某种原因删除了带有 model class 名称的参数Illuminate\Auth\Access\Gate::callPolicyMethod():

protected function callPolicyMethod($policy, $method, $user, array $arguments)
{
    // If this first argument is a string, that means they are passing a class name
    // to the policy. We will remove the first argument from this argument array
    // because this policy already knows what type of models it can authorize.
    if (isset($arguments[0]) && is_string($arguments[0])) {
        array_shift($arguments);
    }

    if (! is_callable([$policy, $method])) {
        return;
    }

    if ($this->canBeCalledWithUser($user, $policy, $method)) {
        return $policy->{$method}($user, ...$arguments);
    }
}

但为什么我的政策不知道他们授权的型号？

Answer 1

好的，问题是 viewAny 和 create 方法根本不需要模型 class 的第二个参数。

它应该是这样的：

public function create(User $user)
{
    //
}

Laravel 策略方法参数计数有问题

Problem with Laravel Policy method arguments count

php

laravel

laravel-authorization

laravel-6