在 Laravel 中验证 JSON 数组
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Validating a JSON array in Laravel
提问by LiquidPL
I have a controller which receives a following POST request:
我有一个控制器，它接收以下 POST 请求：
{
"_token": "csrf token omitted",
"order": [1,2,3,4,5,6,7,8]
}
How can I use validators to ensure that elements in orderare unique, and between 1 and 7? I have tried the following:
我如何使用验证器来确保元素在order1 到 7 之间是唯一的？我尝试了以下方法：
$this->validate($request, [
'order' => 'required|array',
'order.*' => 'unique|integer|between:1,7'
]);
The first clause is checked, the secound one passes even when the input is invalid.
检查第一个子句，即使输入无效，第二个子句也会通过。
采纳答案by Webinan
The uniquevalidator keyword is for checking a value's duplicates in database.
该unique验证关键字是在数据库检查值的重复。
You should use custom validator for such situations.
对于这种情况，您应该使用自定义验证器。
See: https://laravel.com/docs/5.1/validation#custom-validation-rules
请参阅：https: //laravel.com/docs/5.1/validation#custom-validation-rules
回答by Diego Lima
Using distinct rule:
使用不同的规则：
distinct
When working with arrays, the field under validation must not have any duplicate values.
清楚的
使用数组时，验证字段不得有任何重复值。
In your case, it could look like this:
在您的情况下，它可能如下所示：
$this->validate($request, [
'order' => 'required|array',
'order.*' => 'distinct|integer|between:1,7'
]);
