بناء ميزة الإشارات المرجعية مع Livewire v4

@php
new class extends Livewire\Component {
    public int $postId;
    public bool $bookmarked = false;
    
    public function mount(int $postId): void
    {
        $this->postId = $postId;
        $this->bookmarked = auth()->user()->bookmarks()->where('post_id', $postId)->exists();
    }
    
    public function toggle(): void
    {
        if ($this->bookmarked) {
            auth()->user()->bookmarks()->detach($this->postId);
        } else {
            auth()->user()->bookmarks()->attach($this->postId);
        }
        $this->bookmarked = !$this->bookmarked;
    }
}
@endphp