lter/deims

<?php

/**
 * Implements hook_form_alter().
 */

/**
  * Implement hook_help()
  */
function get_doi_help($path, $arg) {
  switch ($path) {
    case 'admin/help#get_doi':
      return '<h3>' . t('About') . '</h3>' . '<p>' . t("The Get DOI module, part of the PASTA module suite, provides an automated 
   mechanism to retrieve Digital Object Identifiers (DOI) for data-sets from the Provenance Aware System Tracking Architecture (PASTA).
   This is a service only relevant to LTER, currently (2017-) offered to LTER sites to store <i>permanently</i> (cough, cough) data records.  
   Once this module is enabled, the Content->dataset administrative list will allow you to retrieve those DOIs, provided those are in PASTA.") . '<p>';
  }
}

// ----------------------------------------------------------------------------
// Actions
// ----------------------------------------------------------------------------

/**
 * Implements hook_action_info().
 */
function get_doi_action_info() {
  $info['get_doi_action_dataset_update_doi'] = array(
    'type' => 'node',
    'label' => t('Fetch DOI from PASTA'),
    'configurable' => FALSE,
    'triggers' => array(),
  );

  return $info;
}

/**
 * Implements callback_action_info().
 *
 * Action callback to retrieve a data set's DOI and save it in field_doi.
 */
function get_doi_action_dataset_update_doi($node) {
  if ($node->type != 'data_set') {
    return;
  }

  try {
    $dataSet = new EmlDataSet($node);
    $pasta = new PastaApi($dataSet);
    if ($doi = $pasta->fetchDOI()) {
      $dataSet->saveDOI($doi);
    }else{
      drupal_set_message('The DOI for this dataset ID and EML revision was not found in PASTA (http://portal.lternet.edu');
      watchdog('get_doi', 'No DOI after lib call');
    }
  }
  catch (Exception $exception) {
    // @todo Should we set the DOI field to be empty here?
    watchdog('get_doi', $exception);
  }
}