public function rules() {
return match ($this->method()) {
'POST' => [
'title' => 'required|unique:posts',
'body' => 'required|min:10'
],
'PUT', 'PATCH' => [
'title' => 'required|unique:posts,title'.$this->route('post'),
'body' => 'required|min:10'
],
default => [],
};
}