internship-playground/src-php/app/internship/bo/Article.php

<?php
namespace internship\bo;

use n2n\reflection\ObjectAdapter;
use n2n\persistence\orm\attribute\ManyToMany;
use n2n\persistence\orm\attribute\OneToMany;
use n2n\persistence\orm\CascadeType;
use n2n\persistence\orm\attribute\OrderBy;

class Article extends ObjectAdapter implements \JsonSerializable {
	public int $id;
	public string $categoryName;

	public string $text;

	public string $title;


	#[OrderBy(array('name' => 'ASC'))]
	#[ManyToMany(Category::class, 'articles', cascade: CascadeType::PERSIST)]
	public \ArrayObject $categories;

	#[OneToMany(Comment::class, 'article', cascade: CascadeType::PERSIST, orphanRemoval: true)]
	public \ArrayObject $comments;

	function __construct() {
		$this->categories = new \ArrayObject();
		$this->comments = new \ArrayObject();
	}

	private function getCategoryIds() {
		$categories = array();
		foreach($this->categories as $category) {
			$categories[] = $category->basicJsonSerialize();
		}
		return $categories;
	}

	private function getCommentIds() {
		$comments = array();
		foreach($this->comments as $comment) {
			$comments[] = $comment->basicJsonSerialize();
		}
		return $comments;
	}

	function basicJsonSerialize() {
		return [
			'id' => $this->id,
			'title' => $this->title,
			'text' => $this->text
		];
	}

    function jsonSerialize(): mixed {

		$basicJson = $this->basicJsonSerialize();

		$basicJson['categoryName'] = $this->categoryName;
		$basicJson['categories'] = $this->getCategoryIds();
		$basicJson['comments'] = $this->getCommentIds();

        return $basicJson;
    }
}