Laravel 5.3 Form Request Validation required_if and min rules - laravel

Question

I use Form Request Validation in one of my Laravel projects, and want to validate country_id but only if bak_leaflet ist set to 0. In my FormRequestFile i have the following rules:
public function rules()
{
return [
...
'country_id' => 'required_if:bak_leaflet,0',
...
];
}
This works absolutely fine, but when bak_leaflet is 0, then country_id also needs to be larger than 1:
public function rules()
{
return [
...
'country_id' => 'required_if:bak_leaflet,0|min:1',
...
];
}
However, the min:1 rule gets ignored completely. How can I make sure the validation works how I need it to?

Answer 1

You can add a validation extender in your AppServiceProvider's boot() method, like this:
\Validator::extend('min_if', function ($attribute, $value, $parameters, $validator) {
$data = $validator->getData();
if (isset($data[$parameters[0]]) && $data[$parameters[0]] == $parameters[1] && (int)$value < $parameters[2]) {
return false;
}
return true;
});
Then write your validation rule like this:
'country_id' => 'required_if:bak_leaflet,0|min_if:bak_leaflet,0,1',
Additionally you will need to add
'min_if' => 'Your validation message',
into resources/lang/en/validation.php or pass to your $this->validate() as third paramater

Answer 2

I've used the answer of #avik-aghajanyan and added the method to my form request file as follows:
<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\Factory as ValidationFactory;
class StoreArticle extends FormRequest
{
public function __construct(ValidationFactory $validationFactory)
{
$validationFactory->extend('min_if', function ($attribute, $value, $parameters, $validator) {
$data = $validator->getData();
if (isset($data[$parameters[0]]) && $data[$parameters[0]] == $parameters[1] && (int)$value < $parameters[2]) {
return false;
}
return true;
});
}
....