Web services Prestashop webservice添加产品&x27；s标签和附件文件

如何使用prestashop webservice api在产品中添加

标记

？ 我需要一个这样的函数：

function addTagToProduct((int)$ProductId, (string)$tagname){}

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附件文档也一样：我应该传递给webservice什么来添加这些标签？

我使用此功能向我的产品添加标签：

public function getTagId($Tag){
    //if tag exists
    $xml = $this->get(array('url' => $this->url . '/api/tags?filter[name]='.$Tag.'&limit=1'));
    $resources = $xml -> children() -> children();
    if(!empty($resources)){
        $attributes = $resources->tag->attributes();
        return $attributes['id'];
    }

    //if not exists, add it
    $xml = $this->get(array('url' => $this->url . '/api/tags?schema=synopsis'));
    $resources = $xml -> children() -> children();

    unset($resources->id);
    $resources->name        = $Tag;
    $resources->id_lang     = $this->getIdLang();

    $opt = array(
        'resource' => 'tags',
        'postXml'  => $xml->asXML()
    );

    $xml = $this->add($opt);
    return $xml->tag->id;
}

希望能有所帮助