Question

Google刚宣布支持App Engine的PHP运行时。我有一个使用Java运行时开发的应用程序，它使用本机App Engine数据存储区。它目前作为移动客户端的后端。我们正在研究开发一个单独的Web前端，它需要连接这个数据存储区。开发这个的开发人员更喜欢用PHP开发，所以这个公告的时间很有意思。

查看文档但我只看到Google Cloud SQL以及Google Cloud Storage的引用作为“存储数据”下的选项。是否可以使用PHP运行时连接本机App Engine数据存储区？

Answer 1

在I / O，我们还宣布Cloud Datastore目前您应该如何考虑从PHP应用程序访问数据存储区。

Answer 2

您需要为项目启用Google Cloud数据存储，请参阅https://developers.google.com/datastore/docs/activate#google_cloud_datastore_for_an_existing_app_engine_application

注意：您不需要启用计算引擎

确保在管理控制台上，应用程序设置云集成部分显示“项目已成功创建。有关详细信息，请参阅“基础知识”部分。'
按照有关如何在AppEngine上获取和使用Google API客户端库的说明进行操作 https://gaeforphp-blog.appspot.com/2013/08/06/using-the-google-apis-client-library-for-php-with-app-engine/
请参阅附加的工作示例以查找已解码的实体密钥：Guestbook：name = default_guestbook＆gt;问候语：id = 5733953138851840

<?php

const SERVICE_ACCOUNT_NAME = 'your-service-account-id@developer.gserviceaccount.com';


require_once 'libraries/google-api-php-client/src/Google_Client.php';
require_once 'libraries/google-api-php-client/src/contrib/Google_DatastoreService.php';

$client = new Google_Client();
$client->setApplicationName("your_app_id");

$key = file_get_contents('storage/your-hashed-keyid-privatekey.p12');
$client->setAssertionCredentials(
    new Google_AssertionCredentials(
        SERVICE_ACCOUNT_NAME,
        array('https://www.googleapis.com/auth/userinfo.email',
              'https://www.googleapis.com/auth/datastore'),
        $key)
);

$datastore = new Google_DatastoreService($client);

$lookup = new Google_LookupRequest();

$path1 = new Google_KeyPathElement();
$path1->setKind('Guestbook');
$path1->setName('default_guestbook');

$path2 = new Google_KeyPathElement();
$path2->setKind('Greeting');
# this is just an example check a real entity id in your datastore
# if you do not have ancestor entity you only need one (path1) element
$path2->setId('5733953138851840');

$key = new Google_Key();
$key->setPath([$path1,$path2]);

$keyArray = array();
$keyArray[] = $key;
$lookup->setKeys($keyArray);

if(array_key_exists('catchError', $_GET)){
    try{
        $result = $datastore->datasets->lookup('your_project_name', $lookup);
        var_dump($result);
    }
    catch(Google_ServiceException $e){
        echo "<pre>";
        var_dump($e);
        echo "</pre>";
    }
}
else{
    $result = $datastore->datasets->lookup('your_project_name', $lookup);
    var_dump($result);
}

Answer 3

这个库最近发布了（由我发布） - 我希望它可以帮助人们找到这个帖子。

它使得使用PHP的数据存储（在App Engine上或不在App Engine上）更容易。

https://github.com/tomwalder/php-gds

享受！

Answer 4

参考：https://developers.google.com/datastore/docs/concepts/gql#using_literals_sample_code

<?php
const APP_NAME='a-test-com';
const SERVICE_ACCOUNT_NAME='511908@developer.gserviceaccount.com';
$_PRIVATE_KEY=file_get_contents('data/34672c-privatekey.p12');
require_once 'google-api-php-client/Google_Client.php';

$client=new Google_Client();
$credentials=new Google_AssertionCredentials(SERVICE_ACCOUNT_NAME,
                                             array('https://www.googleapis.com/auth/userinfo.email',
                                                   'https://www.googleapis.com/auth/datastore'
                                                  ),
                                             $_PRIVATE_KEY
                                            );
$client->setAssertionCredentials($credentials);

$postBody=json_encode(array('gqlQuery'=>array('allowLiteral'=>true, 'queryString'=>
          "SELECT * FROM Guestbook WHERE __key__=key(Guestbook, 'default_guestbook')"
          )));
$httpRequest=new Google_HttpRequest('datastore/v1beta2/datasets/'.APP_NAME.'/runQuery', 'POST', null, $postBody);
$head=array('content-type'=>'application/json; charset=UTF-8',
            'content-length'=>Google_Utils::getStrLen($postBody)
           );
$httpRequest->setRequestHeaders($head);
$httpRequest=Google_Client::$auth->sign($httpRequest);
$result=Google_REST::execute($httpRequest);
var_export($result);
?>

插入代码：How to insert a record using the Admin console Datastore Viewer using GQL

最近发布的GAE PHP运行时是否可以访问本机GAE数据存储？

4 个答案: