game/_incl_data/class/DTO/KnowledgeTempleItem.php

<?php

namespace DTO;

use Helper\Conversion;
use ItemModel;

class KnowledgeTempleItem
{
    public int $id;
    public int $type;
    public string $name;
    public int $level;

    private int $rowId;

    /**
     * @param array $item
     */
    public function __construct(array $item)
    {
        $this->rowId = $item['id'];
        $this->id = intval($item['item_id']);
        $this->type = intval($item['type']);
        $this->name = $item['name'];

        // Общий + конкретный.
        $itemData = array_merge(
            Conversion::dataStringToArray(ItemModel::getItemData($this->id)),
            Conversion::dataStringToArray($item['data']),
        );
        $this->level = intval($itemData['tr_lvl']);
    }

    public function exists(): bool
    {
        return !empty($this->rowId);
    }
}