Question

我遇到此错误

App \ Models \ User :: isNot（App \ Models \ User $ user）的声明应为与Illuminate \ Database \ Eloquent \ Model :: isNot（$ model）
兼容

对于我的代码，我在laravel中使用voyager软件包，我该如何解决

<?php

namespace App\Models;

use Illuminate\Notifications\Notifiable;
use Illuminate\Contracts\Auth\MustVerifyEmail;
use Illuminate\Foundation\Auth\User as Authenticatable;

class User extends \TCG\Voyager\Models\User
 {


  public function isNot(User $user){
       return $this->id !== $user->id;
   }

Answer 1

通过定义类型提示，与您要覆盖的原始代码相比，您可以更改方法签名。

请参见Eloquent/Model：

/**
 * Determine if two models are not the same.
 *
 * @param  \Illuminate\Database\Eloquent\Model|null  $model
 * @return bool
 */
public function isNot($model)
{
    return ! $this->is($model);
}

换句话说，您可能想拥有类似的东西：

public function isNot($user) {
    return $this->id !== $user->id;
}

或可能：

public function isNot($user) {
    if (!$user instanceof User) {
        throw new \InvalidArgumentException('Expected an instance of User');
    }
    return $this->id !== $user->id;
}

此解决方案并不理想，但可以确保您维护原始方法签名。

App \ Models \ User :: isNot（App \ Models \ User $ user）的声明

1 个答案: