sfp_api_laravel_ginastica_cerebro/app/Http/Requests/StudentRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class StudentRequest extends FormRequest
{
    public function rules(): array
    {
        $rules = [
            'avatar'              => 'sometimes|nullable|image',
            'birth_date'          => 'sometimes|nullable|date',
            'document_number'     => 'sometimes|nullable|string|max:20',
            'gender'              => 'sometimes|nullable|string|in:no_preference,male,female,other',
            'email'               => 'sometimes|nullable|email',
            'phone'               => 'sometimes|nullable|string|max:20',
            'postal_code'         => 'sometimes|nullable|string|max:10',
            'street'              => 'sometimes|nullable|string|max:255',
            'address_number'      => 'sometimes|nullable|string|max:20',
            'neighborhood'        => 'sometimes|nullable|string|max:255',
            'state_id'            => 'sometimes|nullable|integer|exists:states,id',
            'complement'          => 'sometimes|nullable|string|max:255',
            'payer_name'          => 'sometimes|nullable|string|max:255',
            'how_did_you_know_us' => 'sometimes|nullable|string|in:referral,social_media,google,other',
            'notes'               => 'sometimes|nullable|string',
        ];

        if ($this->isMethod('post')) {
            $rules['name']  = 'required|string|max:255';
            $rules['email'] = 'sometimes|nullable|email|unique:students,email';
        } else {
            $rules['name'] = 'sometimes|string|max:255';
        }

        return $rules;
    }
}