PUT method using drupal_http_request

Question

I need to update data in HP Quality Center with Drupal.

After login with success, I get some data from QC with the following code (simplified):

$headers = array('Cookie' => $cookie);
$request = drupal_http_request('http://qc.intra.xxx.com:8090/qcbin/rest/domains/' . $domainname . '/projects/' . $projectname . '/test-instances?query={cycle-id["' . $id . '"]}', 
    array('headers' => $headers), 
    'GET'
);
$xml = simplexml_load_string($request->data);
$json = json_encode($xml);
$testset_array = json_decode($json, TRUE);

What I want now is to update some QC fields. For that, instead of GET, I need PUT. The code I've tried to update a test instance:

    $xml_data = '<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
            <Entity Type="test-instance">
                <Fields>
                    <Field Name="my_field">
                        <Value>my value</Value>
                    </Field>
                </Fields>
            </Entity>';

    $headers = array('Cookie' => $cookie, 'content-type' => 'application/xml');

    $url = 'http://qc.intra.xxx.com:8090/qcbin/rest/domains/' . $domainname . '/projects/' . $projectname . '/test-instances/404886';
    $request = drupal_http_request($url, 
       array('headers' => $headers), 
       'PUT', 
       $data
    );

    $xml = simplexml_load_string($request->data);
    $json = json_encode($xml);
    $testset_array = json_decode($json, TRUE);

This is not working and I don't get any error also, what am I doing wrong?

Thanks

Answer 1

For starters, looking at your code, $xml_data is instantiated but never used in your call to drupal_http_request(), you use the $data variable instead. Intentional or the culprit?

Second, your call to drupal_http_request follows the Drupal 6 (and earlier) syntax, what system are you using?

For Drupal 7, it should look like this:

$response = drupal_http_request($url, 
  array(
    'headers' => $headers,
    'method' => 'PUT', 
    'data' => $xml_data,
  )
);

// this should reveal what was actually sent out
dsm($response->request);

Hope this helps some!