exchange-2.0/app/Http/Requests/UpdateAffiliateRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class UpdateAffiliateRequest 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()
    {
        return [
            'campaign_name' => 'required|string|max:255',
            'campaign_description' => 'nullable|string|max:65535',
            'is_active' => 'nullable|boolean',
        ];
    }

    /**
     * Get custom error messages for validation rules.
     *
     * @return array
     */
    public function messages()
    {
        return [
            'campaign_name.required' => 'A campaign name is required.',
            'campaign_name.max' => 'The campaign name cannot exceed 255 characters.',
        ];
    }
}