如何测试一个类别是否已经存在？PrestaShop

Question

我从其他数据库 Web 服务获取类别，并在刷新文件以添加类别时将它们放在 PrestaShop 上，我想确保类别 ID 是否存在，如果存在，我想更新类别。$XMLRQString = '<?xml version="1.0" encoding="utf-8"?>'.    '<x:Winmax4GetFamiliesRQ xmlns:x="urn:Winmax4GetFamiliesRQ">'.    '</x:Winmax4GetFamiliesRQ >';$return = $client->GetFamilies($Params);$XMLRSString = new SimpleXMLElement($return->GetFamiliesResult);if ($XMLRSString->Code > 0)    echo '</br>Error: '.$XMLRSString->Code." ".$XMLRSString->Message;else{        foreach ($XMLRSString->Families->Family as $family)        {               $category = new Category();            $category->id = $family->Code;            $category->force_id = true;            $category->is_root_category = false;            $category->name = array((int)Configuration::get('PS_LANG_DEFAULT') => $family->Designation);            $category->link_rewrite = array((int)Configuration::get('PS_LANG_DEFAULT') =>  $family->Code);            $category->id_parent = Configuration::get('PS_HOME_CATEGORY');            $category->add();        }    }

Answer 1

这会起作用：

$default_lang = (int)Configuration::get('PS_LANG_DEFAULT');

$home = (int)Configuration::get('PS_HOME_CATEGORY');

$category = new Category((int)$family->Code);

$category->is_root_category = false;

$category->name = array($default_lang => $family->Designation);

$category->link_rewrite = array($default_lang => $family->Code);

$category->id_parent = $home;

$category->save();

此外，您始终可以使用Validate::isLoadedObject()静态方法检查对象是否有效。