wticreatorstudio/Modules/Setup/Http/Requests/IntroPrefixFormRequest.php

<?php

namespace Modules\Setup\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Rule;

class IntroPrefixFormRequest extends FormRequest
{
    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            "title" => [
                'required',
                Rule::unique('intro_prefix', 'title')->ignore($this->id)
            ],
            "prefix" => [
                'required',
            ]
        ];
    }

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