id = $id; } /** * Run the validation rule. */ public function validate(string $attribute, mixed $value, Closure $fail) : void { if ($value !== '0000000000' && $value !== null && Debiture::query()->where($attribute, $value)->when( $this->id, function ($query) { $query->where('id', '!=', $this->id); }, )->exists()) { $fail('The :attribute field must be unique.'); } } }