laravel validation check if input value exists in emails or users - laravel

Question

please I want know if there is any method to validate an input if exists in column email or username
without deal with code just validation system in laravel like
'username'=>'required|exists:App\Models\User,email OR exists:App\Models\User,username'
I want to make a 'LOST PASSWORD' like wordpress
wordpress lost password system ask the users for email or username if exits it's okey if it's not display an error message

Answer 1

If you really need to check if the username exists as a users.email or as a users.username, you should make a Custom Validation Rule - since the exists rule can't cover both of these. Something like this should work:
<?php
namespace App\Rules;
use Illuminate\Contracts\Validation\Rule;
use App\Models\User;
class EmailOrUsername implements Rule
{
/**
* Determine if the validation rule passes.
*
* #param string $attribute
* #param mixed $value
* #return bool
*/
public function passes($attribute, $value)
{
return User::where(function($q) use($value) {
$q->orWhere('email', $value)->orWhere('username', $value);
})->count() > 0;
}
/**
* Get the validation error message.
*
* #return string
*/
public function message()
{
return 'Sorry, your credentials do not match our records.';
}
}
When you need to use it, you do it like this:
<?php
use App\Rules\EmailOrUsername;
$request->validate([
'username' => ['required', 'string', new EmailOrUsername],
]);