The Illuminate\Database\Eloquent\Builder namespace for custom Unique Rule in validations is wrong.

[matheusbrdev]

• Laravel Version: 10.2.0
• PHP Version: 8.1.0
• Database Driver & Version: SQL Server 2019 enterprise

Description:

I try to use the Unique Rule in validations:

use Illuminate\Validation\Rule;
use Illuminate\Validation\ValidationException;
use Illuminate\Database\Eloquent\Builder;

 public function update(Request $request, $id)
    {
        try {
                $rules = [
                    'email' => [
                        'required',
                         Rule::unique('email')
                            ->where(fn (Builder $query) => $query->where('customer_id, '<>', $id))
                     ]
                  ];

                $request->validate($rules);
            } catch (ValidationException $exception) {
                Log::channel('single')->info("validation_error", $exception->getMessage());
        }
    }

But i this exception is throw: Argument #1 ($query) must be of type Illuminate\\Database\\Eloquent\\Builder, Illuminate\\Database\\Query\\Builder given, called in /var/www/html/vendor/laravel/framework/src/Illuminate/Validation/DatabasePresenceVerifier.php on line 85

But if you change to this:

use Illuminate\Validation\Rule;
use Illuminate\Validation\ValidationException;

 public function update(Request $request, $id)
    {
        try {
                $rules = [
                    'email' => [
                        'required',
                         Rule::unique('email')
                            ->where(fn (\Illuminate\Database\Query\Builder $query) => $query->where('customer_id, '<>', $id))
                     ]
                  ];

                $request->validate($rules);
            } catch (ValidationException $exception) {
                Log::channel('single')->info("validation_error", $exception->getMessage());
        }
    }

It's work!. The Illuminate\Database\Query\Builder namespace was shown like a wrong, but it's actually the correct one!

Steps To Reproduce:

1. Create array for rules;
2. Read the documentation about custom Unique Rules;
3. Write a custom unique rule with Rule::unique()->where() method;

[driesvints]

I'm not entirely sure what the issue here is? You indeed need to reference the correct namespace.

[matheusbrdev]

Yes, need. But the namespace was shown like a correct... it's the wrong!

[matheusbrdev]

I need open another issue? Because you closed that

[prabodhana]

@matheusbrdev yes your right. I faced the same issue "Illuminate\Database\Query\Builder" works fine.