Google Calendar API batch request PHP - php

Question

i am trying to send a bunch of events via an Batch Request to Google Calendar.
But i cant figur out how to do. https://developers.google.com/google-apps/calendar/batch doesnt help me.
require_once 'google-api-php-client/src/Google_Client.php';
require_once 'google-api-php-client/src/contrib/Google_CalendarService.php';
$client = new Google_Client();
$client->setUseBatch(true);
$batch = new Google_BatchRequest();
$uri = 'http://www.google.com/calendar/feeds/default/private/full/batch';
$batchContent = file_get_contents('xxxxx/google-api-php-client/batch.xml');
$batch->add($batchContent);
batch.xml contains 2 -items.
Thats all so far. But nothing happened.
I also have tried
$batch->execute()
But thats throws error without message.
My question: How to send a Batch via PHP to Google Calendar ?

Answer 1

I'm using the latest version of Google APIs Client Library for PHP (Google Calendar v.3). I use batch operations for pushing instructor lessons to Google Calendar. Here is my example of code for you (multipleInsert function). Good luck!
<?php
require_once(APPPATH . 'libraries/Google/Client.php');
require_once(APPPATH . 'libraries/Google/Http/Batch.php');
require_once(APPPATH . 'libraries/Google/Service/Calendar.php');
class My_google_calendar
{
...
/** Add single Event for Student */
function addEvent($lesson, $instructor, $return_request = false, $enable_attendees = false)
{
$calendar = $this->getGoogleCalendar(); // get calendar service variable
$lesson_from = date(DATE_RFC3339, $lesson->from);
$lesson_to = date(DATE_RFC3339, $lesson->from + $lesson->duration);
$event = new Google_Service_Calendar_Event();
$event->setSummary('Lesson with student: '$lesson->student_full_name);
$start = new Google_Service_Calendar_EventDateTime();
$start->setDateTime($lesson_from);
$start->setTimeZone($this->getGoogleCalendarTimeZone());
$event->setStart($start);
$end = new Google_Service_Calendar_EventDateTime();
$end->setDateTime($lesson_to);
$end->setTimeZone($this->getGoogleCalendarTimeZone());
$event->setEnd($end);
$event->setColorId(4);
$description = "...";
$event->setDescription($description);
if (isset($student->email) && $enable_attendees) {
$attendee1 = new Google_Service_Calendar_EventAttendee();
$attendee1->setResponseStatus('needsAction');
$attendee1->setEmail($student->email);
$attendees = array($attendee1);
$event->setAttendees($attendees);
}
$createdEvent = $this->calendar->events->insert($this->calendar_id, $event, array('fields' => 'id'));
return $return_request ? $createdEvent : $createdEvent->getId();
}
/** Push group of events to the Calendar */
function multipleInsert ($lessons, $instructor)
{
$this->use_batch = true;
$this->client->setUseBatch($this->use_batch);
$batch = new Google_Http_Batch($this->client);
$optParams = array('fields' => 'status,updates');
foreach($lessons as $time => $lesson) {
$lesson = array_shift($group['lessons']);
$req = $this->addEvent($lesson, $instructor, true);
$batch->add($req, $time);
}
}
$results = $batch->execute();
return $results;
}
}

Answer 2

in the newer versions, you should use
$batch = $service->createBatch();
instead of
$batch = new Google_Http_Batch($this->client);
reference