config.php

<?php
 
namespace Bitrix\Location\Entity\Source;
 
final class Config implements \IteratorAggregate
{
    private $items = [];
 
    public function addItem(ConfigItem $item)
    {
        $this->items[] = $item;
 
        return $this;
    }
 
    public function getItem(string $code): ?ConfigItem
    {
        foreach ($this->items as $item)
        {
            if ($item->getCode() !== $code)
            {
                continue;
            }
 
            return $item;
        }
 
        return null;
    }
 
    public function getValue(string $code)
    {
        $item = $this->getItem($code);
        if (!$item)
        {
            return null;
        }
 
        return $item->getValue();
    }
 
    public function setValue(string $code, $value): bool
    {
        foreach ($this->items as $item)
        {
            if ($item->getCode() !== $code)
            {
                continue;
            }
 
            $item->setValue($value);
 
            return true;
        }
 
        return false;
    }
 
    public function getIterator(): \Traversable
    {
        usort(
            $this->items,
            function (ConfigItem $item1, ConfigItem $item2)
            {
                if ($item1->getSort() == $item2->getSort())
                {
                    return 0;
                }
 
                return ($item1->getSort() < $item2->getSort()) ? -1 : 1;
            }
        );
 
        return new \ArrayIterator($this->items);
    }
}