Laravel 自定义验证消息作为数组导致错误

Question

在一个包中，我试图在一个与 Laravel 的默认文件分开的文件中包含自定义验证错误消息。我复制了文件，更改了值（没有触摸键），在服务提供商中正确加载它，一切正常。 required、numeric、email 等基本验证会在我的文件中显示文本。现在，我尝试使用size 规则，但由于错误消息在数组中，因此在使用$errors->get( 'content.reasons' ) 时会出现此异常：

Array to string conversion in MessageBag.php (line 246)

这里是代码的重要部分

控制器

$validator = Validator::make( $request->all(), $rules, trans( 'admin::validation' ) );
if ( $validator->fails() ){
    return redirect()
        ->back()
        ->withInput()
        ->withErrors( $validator );
}

$request->all()

[
    // ...
    "content" => [
        "reasons" => [
            [...],
            [...]
        ]
    ],
    // ...
]

$rules

[
    // ...
    "content.reasons" => "required|size:3"
    // ...
]

trans( 'admin::validation' )

// Exact structure of Laravel validation.php
[
    // ...
    'size'                 => [
        'numeric' => 'The field must be :size.',
        'file'    => 'The field must be :size kilobytes.',
        'string'  => 'The field must be :size characters.',
        'array'   => 'The field must contain :size items.',
    ],
    // ...
]

---

重定向后

$errors = session()->get('errors') ?: new ViewErrorBag;
$field[ 'errors' ] = $errors->get( $dot_name ); // Exception thrown when $dot_name
                                                // equals `content.reasons`.

$errors

Illuminate\Support\ViewErrorBag {
    #bags: array:1 [
        "default" => Illuminate\Support\MessageBag {
            #messages: array:4 [
                "content.why_title" => array:1 [
                    0 => "The field is required."
                ]
                "content.reasons" => array:1 [
                    0 => array:4 [
                        "numeric" => "The field must be 3."
                        "file" => "The field must be 3 kilobytes."
                        "string" => "The field must be 3 characters."
                        "array" => "The field must contain 3 items."
                    ]
                ]
                "content.reasons.0.icon" => array:1 [
                    0 => "The field is required."
                ]
                "content.reasons.0.text" => array:1 [
                    0 => "The field is required."
                ]
            ]
            #format: ":message"
        }
    ]
}

---

我尝试传递 content.reasons.array，但它返回一个空数组。

我也尝试过不传递任何消息（使用 Laravel 的默认值）并且它有效，但我确实需要自定义消息...

TL;DR：我们如何传递与 Laravel 相同架构的自定义消息？

Answer 1

我不知道你想做什么，但你可以为每个验证字段/规则传递自定义消息，例如，在你的控制器中：

    //Error messages
    $messages = [
        "name.required" => "Name is required",
        "name.string" => "Name must be a string",
        "username.required" => "Username is required",
        "username.min" => "Username must be at least 6 characters",
        "email.required" => "Email is required",
        "email.email" => "Email is not valid"
    ];

    // validate the form data
    $validator = Validator::make($request->all(), [
            'name' => 'required|string',
            'username' => 'required|min:6',
            'email' => 'required|email'
        ], $messages);

    if ($validator->fails()) {
        return back()->withErrors($validator)->withInput();
    } else {
        //Some code here
    }