ms图表php sdk消息对象无法检查是否有附件

Question

我正在从Outlook帐户检索邮件。我试图从这些消息中获取内联文件和附件。

$graph = new Graph();
$graph->setAccessToken($this->getAccessToken());

$messageQueryParams = array (
    "\$select" => "subject,receivedDateTime,from,sentDateTime,body,toRecipients,sender,uniqueBody,ccRecipients,bccRecipients,attachments",
    "\$orderby" => "receivedDateTime DESC",
    "\$top" => "200" 
);

$url = '/me/mailfolders/' . $folder . '/messages/delta';
$url_combiner = '?';

$getMessagesUrl = $url . $url_combiner . http_build_query($messageQueryParams);
$response = $graph->createRequest('GET', $getMessagesUrl)->execute();

$messages = $response->getResponseAsObject( \Microsoft\Graph\Model\Message::class );

foreach($messages as $msg) {
     echo $msg->getHasAttachments();
}

此代码为$ msg-> getHasAttachments（）返回'null';我希望它能回归真假。

我从这个文件夹下载的邮件有内联附件和邮件附件，所以我正在寻找两者的解决方案。

（非常感谢那些指向MS Graph PHP SDK文档中特定点的响应。）

Answer 1

这是预期的行为，在您的情况下，getHasAttachments()方法返回null，因为hasAttachments不包含在$select查询选项中，因此不会从服务器请求它。需要明确包含它，例如：

$messageQueryParams = array (
    "\$select" => "hasAttachments,...",
    //another params are omitted for clarity
);

然后，消息是否包含附件可以像这样确定：

foreach($messages as $msg) {
    if($msg->getHasAttachments() == true){
        //...
}

提供的示例还有一个问题，要检索需要通过Message.attachments查询字符串参数而不是$expand指定的$select引用属性（或关系属性）（有关详细信息，请参阅official documentation），如下所示：

$messageQueryParams = array (
     "\$expand" => "attachments",
    //another params are omitted for clarity
); 

然后可以像这样迭代附件集合：

 foreach($messages as $msg) {
    foreach($msg->getAttachments() as $attachment) {
        //...
    }
 }