ExponentialBackoff作业重新加载功能错误：调用未定义的方法

Question

我在运行下面的PHP脚本时遇到以下致命错误：

等待工作完成

**Fatal error: Uncaught Error: Call to undefined method 
Google\Cloud\BigQuery\CopyJobConfiguration::*reload()*
 in /opt/bitnami/apache2/htdocs/test.php:53 Stack trace: #0 [internal function]: 
 {closure}() #1 /opt/bitnami/apache2/htdocs/vendor/google/cloud/src/Core/ExponentialBackoff.php(74):
 call_user_func_array(Object(Closure), Array) #2 /opt/bitnami/apache2/htdocs/test.php(58):
 Google\Cloud\Core\ExponentialBackoff->execute(Object(Closure)) #3 /opt/bitnami/apache2/htdocs/test.php(36): 
 copy_table('aaaa', 'bbbb', 'cccc', 'dddd', 'eeee') #4 {main} thrown in /opt/bitnami/apache2/htdocs/test.php on line 54**

.

<?php

header("Cache-Control: no-store, no-cache, must-revalidate"); // HTTP/1.1
header("Cache-Control: post-check=0, pre-check=0", false);
header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header("Pragma: no-cache"); // HTTP/1.0
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");

ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

# Includes the autoloader for libraries installed with composer

require "vendor/autoload.php";  

use Google\Cloud\BigQuery\BigQueryClient;
use Google\Cloud\ServiceBuilder;
use Google\Cloud\Core\ExponentialBackoff;

$client = new Google_Client();
putenv('GOOGLE_APPLICATION_CREDENTIALS='.dirname(__FILE__) . '/.ssh/xxx.json');
$client->useApplicationDefaultCredentials();

# Your Google Cloud Platform project stuff
$projectId = 'aaaa';
$datasetIdin = 'bbbb';
$datasetIdout = 'cccc';
$tableIdin = "dddd";
$tableIdout = "eeee";

$gcloud = new ServiceBuilder([ 
    'projectId' => $projectId
]);

copy_table($projectId, $datasetIdin, $datasetIdout, $tableIdin, $tableIdout);

function copy_table($projectId, $datasetIdin, $datasetIdout, $tableIdin, $tableIdout)
{
    $bigQuery = new BigQueryClient([
        'projectId' => $projectId,
    ]);
    $datasetin = $bigQuery->dataset($datasetIdin);
    $datasetout = $bigQuery->dataset($datasetIdout);
    $sourceTable = $datasetin->table($tableIdin);
    $destinationTable = $datasetout->table($tableIdout);
    $job = $sourceTable->copy($destinationTable);

    // poll the job until it is complete
    $backoff = new ExponentialBackoff(10);
    $backoff->execute(function () use ($job) {
        print('Waiting for job to complete' . PHP_EOL);
        $job->reload();
        if (!$job->isComplete()) {
            throw new Exception('Job has not yet completed', 500);
        }
    });
    // check if the job has errors
    if (isset($job->info()['status']['errorResult'])) {
        $error = $job->info()['status']['errorResult']['message'];
        printf('Error running job: %s' . PHP_EOL, $error);
    } else {
        print('Table copied successfully' . PHP_EOL);
    }

echo "table copied"; 
}

?>

看起来'虽然没有加载适当的类？我使用的composer.json是：

{
    "require": {
        "google/cloud": "^0.47.0",
        "google/apiclient": "^2.0"
    }
}

关于我为什么会遇到这个错误的任何想法？谢谢！

Answer 1

你的方法有点不对劲。

$job = $sourceTable->copy($destinationTable);

这不会返回一份工作。

返回要传递给Google\Cloud\BigQuery\Table::runJob()或Google\Cloud\BigQuery\Table::startJob()的复制作业配置。

因此，您还需要添加代码以将此conf传递给上述函数。

http://googlecloudplatform.github.io/google-cloud-php/#/docs/google-cloud/v0.47.0/bigquery/table?method=copy