Laravel 更新模型，具有唯一的属性验证规则 [英] Laravel update model with unique validation rule for attribute

问题描述

我有一个 Laravel User 模型，它在 username 和 email 上有一个唯一的验证规则.在我的存储库中，当我更新模型时，我会重新验证字段，以免出现所需规则验证的问题:

I have a Laravel User model which has a unique validation rule on username and email. In my Repository, when I update the model, I revalidate the fields, so as to not have a problem with required rule validation:

public function update($id, $data) {
    $user = $this->findById($id);
    $user->fill($data);
    $this->validate($user->toArray());
    $user->save();

    return $user;
}

测试失败:

ValidationException: {"username":["用户名已经"],email":[电子邮件已经被接收."]}

ValidationException: {"username":["The username has already been taken."],"email":["The email has already been taken."]}

有没有办法优雅地解决这个问题?

Is there a way of fixing this elegantly?

推荐答案

将当前正在更新的实例的 id 附加到验证器.

Append the id of the instance currently being updated to the validator.

1. 传递实例的 id 以忽略唯一验证器.

在验证器中，使用参数来检测您是更新还是创建资源.

In the validator, use a parameter to detect if you are updating or creating the resource.

如果更新，强制唯一规则忽略给定的id:

If updating, force the unique rule to ignore a given id:

//rules
'email' => 'unique:users,email_address,' . $userId,

如果创建，照常进行:

//rules
'email' => 'unique:users,email_address',

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