输入数组在 Laravel 验证中应至少包含一个值

如何解决输入数组在 Laravel 验证中应至少包含一个值

我遇到了验证问题， 输入数组应至少包含一个值 例如，当我提交表单时，我得到以下输入

 array:26 [
  "_token" => "GMPKHos9nnC6zw6UGN4nFKVEGd5PoEpDe9lEPETw"
  "Customer" => "1"
  "Text_From_Date" => "07 Jun 2021"
  "From_Date" => "2021-06-07"
  "Text_Due_Date" => "16 Jun 2021"
  "Due_Date" => "2021-06-16"
  "Invoice_Id" => "INV-1"
  "Reference" => null
  "Branding" => null
  "Add_Currency" => null
  "Tax_Type" => "ex_tax"
  "Item" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Product_Description" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Quantity" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Unit_Price" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Discount" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Discount_Amount" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Account" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Tax_Rate" => array:5 [
    0 => "0"
    1 => "0"
    2 => "0"
    3 => "0"
    4 => "0"
  ]
  "Tax_Rate_Amount" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Region" => array:5 [
    0 => null
    1 => null
    2 => null
    3 => null
    4 => null
  ]
  "Amount" => array:5 [
    0 => "0"
    1 => "0"
    2 => "0"
    3 => "0"
    4 => "0"
  ]
  "Sub_Total" => "0"
  "Total_Discount" => "0"
  "Grand_Total" => "0"
  "Form_Type" => "1"
]

这里是控制器中的验证规则

 public function save(Request $request)
    {
        $rules =  [
            'Customer' => 'required','Text_From_Date' => 'required','From_Date' => 'required|date','Text_Due_Date' => 'required','Due_Date' => 'required|date','Reference' => 'bail|nullable|string|min:3','Add_Currency' => 'bail|nullable','Tax_Type' => 'required','Product_Description.*' => 'exclude_if:Quantity.*,null|exclude_if:Unit_Price.*,null|required|max:1000','Item.*' => 'exclude_if:Quantity.*,null|bail|nullable','Quantity.*' => 'exclude_if:Product_Description.*,null|required|numeric','Unit_Price.*' => 'exclude_if:Product_Description.*,'Account.*' => 'exclude_if:Product_Description.*,'Amount.*' => 'exclude_if:Product_Description.*,'Sub_Total' => 'required|numeric','Total_Discount' => 'required|numeric',];
        $validator = Validator::make($request->all(),$rules);
        if ($validator->fails()) {
            return response()->json($validator->errors(),422);
        } else {
            dd($validator->validated());
            return response()->json('saved',200);
        }
    }

数组 Item,Product_Description,Unit_Price,Quantity,Discount,Discount_Amount,Account,Tax_Rate,Tax_Rate_Amount,Region,Amount 应该至少有一个 notNull 值。

请帮助解决问题提前谢谢！

解决方法

您可以使用自定义验证。您可以创建自定义规则以保持代码整洁。这只是一个片段

 'Quantity' =>['required',function ($attribute,$value,$fail) {

            if (is_array($value)&&!array_filter($value)) {
                $fail('The '.$attribute.' is invalid.');
            }
        },],

例如，这里的数据包含数组中的所有空值，因此抛出错误

Array
(
    [data] => Array
        (
            [0] => 
            [1] => 
        )

)

验证错误

Illuminate\Support\MessageBag Object
(
    [messages:protected] => Array
        (
            [data] => Array
                (
                    [0] => The data is invalid.
                )

        )

    [format:protected] => :message
)

,

使用自定义验证规则，并制定该规则：

<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;

class NotEmptyArrayRule implements Rule
{

    private string $key;
    private string $value;

    public function passes($attribute,$value): bool
    {
        // remove null items from collection.
        $arr = collect($value)->filter(); 

        return $arr->isNotEmpty();
    }

    public function message(): string
    {
        return 'Input array is empty.';
    }
}

然后使用规则：

'Item' => [
  'exclude_if:Quantity.*,null','exclude_if:Unit_Price.*,'bail','nullable',new NotEmptyArrayRule(),]