使用 Laravel 验证嵌套 JSON 对象并传递参数到自定义验证器

<?php

namespace App\Http\Requests\App;

use App\Rules\SeatIsAvailable;
use Illuminate\Foundation\Http\FormRequest;

class CheckoutRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return true;
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        $rules = [
            'company' => 'required',
            'seats' => 'required|array',
        ];

        return array_merge($rules, $this->seatsRules());
    }

    private function seatsRules(): array
    {
        $rules = [];

        foreach ((array) $this->request->get('seats') as $key => $seat) {
            $rules["seats.$key.seat_no"] = ['required', new SeatIsAvailable($seat)];
            $rules["seats.$key.schedule_id"] = 'required|numeric';
            $rules["seats.$key.date"] = 'required|date';
        }

        return $rules;
    }
}

<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;

class SeatIsAvailable implements Rule
{
    protected $seatData;

    public function __construct($seatData)
    {
        $this->seatData = $seatData;
    }

    public function passes($attribute, $value)
    {
        // 使用 $this->seatData->schedule_id 和 $this->seatData->date 进行验证逻辑
        // 例如，检查座位是否在指定的日期和时间段内可用
        // 实际验证逻辑需要根据具体需求实现
        return true; // 替换为实际的验证结果
    }

    public function message()
    {
        return 'The seat is not available.';
    }
}