xtu_mall/app/common/model/CooperationOption.php

<?php

namespace app\common\model;

use think\Model;

class CooperationOption extends Model
{
    protected $name = 'cooperation_option';
    protected $autoWriteTimestamp = false;

    public function getTypeList(): array
    {
        return [
            'country_region' => '大洲/区域',
            'country' => '国家/地区',
            'industry' => '行业',
        ];
    }

    public static function getOptions(string $type, string $lang = 'cn'): array
    {
        $type = trim($type);
        $lang = strtolower(trim($lang));
        $lang = $lang !== '' ? $lang : 'cn';

        $rows = static::where(['type' => $type, 'lang' => $lang, 'status' => 1])
            ->order('listorder', 'asc')
            ->order('id', 'asc')
            ->select()
            ->toArray();

        if (!$rows && $lang !== 'cn') {
            $rows = static::where(['type' => $type, 'lang' => 'cn', 'status' => 1])
                ->order('listorder', 'asc')
                ->order('id', 'asc')
                ->select()
                ->toArray();
        }

        return $rows ?: [];
    }

    public static function getCountryTree(string $lang = 'cn'): array
    {
        $lang = strtolower(trim($lang));
        $lang = $lang !== '' ? $lang : 'cn';

        $regions = static::getOptions('country_region', $lang);
        $countries = static::getOptions('country', $lang);
        $tree = [];
        foreach ($regions as $region) {
            $value = (string)$region['value'];
            $tree[$value] = [
                'title' => $region['title'],
                'value' => $value,
                'children' => [],
            ];
        }
        foreach ($countries as $country) {
            $parent = (string)($country['parent_value'] ?? '');
            if ($parent === '' || !isset($tree[$parent])) {
                $parent = 'OTHER';
                if (!isset($tree[$parent])) {
                    $tree[$parent] = [
                        'title' => $lang === 'en' ? 'Other' : '其他',
                        'value' => $parent,
                        'children' => [],
                    ];
                }
            }
            $tree[$parent]['children'][] = [
                'title' => $country['title'],
                'value' => $country['value'],
            ];
        }

        return array_values($tree);
    }
}