Fatal Error message upon content creation

I got the same error message.

Fatal error: Uncaught exception 'Exception' with message 'String could not be parsed as XML' in /home/classbu1/public_html/sites/all/modules/scribdfield/scribdfield.module:174 Stack trace: #0 /home/classbu1/public_html/sites/all/modules/scribdfield/scribdfield.module(174): SimpleXMLElement->__construct('') #1 /home/classbu1/public_html/sites/all/modules/scribdfield/scribdfield.module(120): scribdfield_api_upload('sites/all/files...') #2 /home/classbu1/public_html/modules/node/node.module(673): scribdfield_nodeapi(Object(stdClass), 'presave', NULL, NULL) #3 /home/classbu1/public_html/modules/node/node.module(859): node_invoke_nodeapi(Object(stdClass), 'presave') #4 /home/classbu1/public_html/modules/node/node.pages.inc(456): node_save(Object(stdClass)) #5 /home/classbu1/public_html/includes/form.inc(774): node_form_submit(Array, Array) #6 /home/classbu1/public_html/includes/form.inc(414): form_execute_handlers('submit', Array, Array) #7 /home/classbu1/public_html/includes/form.inc(119): drupal_process_form('presentation_no in /home/classbu1/public_html/sites/all/modules/scribdfield/scribdfield.module on line 174

that sucks, do you want to sponsor it with me? I have 50 bucks.

I had a similiar issue the main problem was due to files being passed not existing (perhaps on the previous posts the file permissions aren't setup properly).

What is needed:
* A fallback for files that don't actually exist or can't be found.
* A better try / catch around the upload api call

This happened for me from the following scenario:
* Upload a file to a node (not having scribd associated with output)
* Delete that node off of the server
* Associate scribd to Filefield output
* Edit / Save the previous node and you'll get this problem each time.

My fix:

/**
 * Implementation of hook_nodeapi().
 */
function scribdfield_nodeapi(&$node, $op, $teaser, $page) {
  switch ($op) {
    case 'presave':
      foreach ($node as $node_key => $node_value) {
        if (strpos($node_key, 'field_') !== FALSE) {
          $field = content_fields($node_key, $node->type);
          if ($field['widget']['module'] == 'scribdfield') {
            unset($_SESSION['scribfield_removed_files']);
            // see scribdfield_widget_process() for sets.

            foreach ($node->{$node_key} as $field_delta => $field_value) {
              if (!empty($node->{$node_key}[$field_delta]['filepath']) &&
                   empty($node->{$node_key}[$field_delta]['data']['scribd_doc_id'])) {
                $response_xml = scribdfield_api_upload($node->{$node_key}[$field_delta]['filepath']);
                if ($response_xml->attributes()->stat == 'ok') {
                  $node->{$node_key}[$field_delta]['data']['scribd_doc_id']           = (string) $response_xml->doc_id;
                  $node->{$node_key}[$field_delta]['data']['scribd_access_key']       = (string) $response_xml->access_key;
                  $node->{$node_key}[$field_delta]['data']['scribd_secret_password']  = (string) $response_xml->secret_pas$
                  drupal_set_message(t('@filepath has been uploaded to Scribd.com.',
                    array('@filepath' => $node->{$node_key}[$field_delta]['filepath'])));
                }
                else {
                  drupal_set_message(t('@filepath could not be uploaded to Scribd.com: @error.', // thank you, usable erro$
                    array('@filepath' => $node->{$node_key}[$field_delta]['filepath'], '@error' => $response_xml->error->a$
                }

To:

/**
 * Implementation of hook_nodeapi().
 */
function scribdfield_nodeapi(&$node, $op, $teaser, $page) {
  switch ($op) {
    case 'presave':
      foreach ($node as $node_key => $node_value) {
        if (strpos($node_key, 'field_') !== FALSE) {
          $field = content_fields($node_key, $node->type);
          if ($field['widget']['module'] == 'scribdfield') {
            unset($_SESSION['scribfield_removed_files']);
            // see scribdfield_widget_process() for sets.

            foreach ($node->{$node_key} as $field_delta => $field_value) {
              if (!empty($node->{$node_key}[$field_delta]['filepath']) &&
                   empty($node->{$node_key}[$field_delta]['data']['scribd_doc_id']) &&
                   file_exists($node->{$node_key}[$field_delta]['filepath'])) { // Added a file_exists check here to ensure we aren't try to upload nothing
                $response_xml = scribdfield_api_upload($node->{$node_key}[$field_delta]['filepath']);
                if ($response_xml->attributes()->stat == 'ok') {
                  $node->{$node_key}[$field_delta]['data']['scribd_doc_id']           = (string) $response_xml->doc_id;
                  $node->{$node_key}[$field_delta]['data']['scribd_access_key']       = (string) $response_xml->access_key;
                  $node->{$node_key}[$field_delta]['data']['scribd_secret_password']  = (string) $response_xml->secret_pas$
                  drupal_set_message(t('@filepath has been uploaded to Scribd.com.',
                    array('@filepath' => $node->{$node_key}[$field_delta]['filepath'])));
                }
                else {
                  drupal_set_message(t('@filepath could not be uploaded to Scribd.com: @error.', // thank you, usable erro$
                    array('@filepath' => $node->{$node_key}[$field_delta]['filepath'], '@error' => $response_xml->error->a$
                }
  

I've commited the file_exists check to 6.x-1.x, so it should appear in the dev release very soon. Let me know if that does not fix the issue.

Super thanks!