CustomValidationRequest.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;

class CustomValidationRequest extends FormRequest
{
    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize()
    {
        return auth()->check();
    }

    protected function validationData()
    {
        $this['already_exists'] = 0;
        
        // query if student already exists
        $student = Query::here()->first();

        if ($student) {
            $this['already_exists'] = 1;
        }

        return $this->all();
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        return [
            'already_exists' => 'required|in:0',
        ];
    }
    
    public function messages()
    {
        return [
            'already_exists.in' => 'Student is already enrolled',
        ];
    }
}

kanang validationData() sa request jud na na function no? so pwede nako ibutang tanan custom validation nako draa?

pwede kaayo sir @kharlmostwanted

gikan na sa iyang FormRequest parent class

puro na sya overrides sir pati kanang messages()