biblio_scholar.module in Biblio Scholar 7

Add Google Scholar metatags to Biblio node pages

File

biblio_scholar.module

<?php

/**
 * @file
 * Add Google Scholar metatags to Biblio node pages
 */
function biblio_scholar_preprocess_node($variables) {
  if ($variables['type'] == 'biblio') {
    drupal_add_html_head(array(
      '#tag' => 'meta',
      '#attributes' => array(
        'name' => 'citation_title',
        'content' => $variables['title'],
      ),
    ), 'biblio_scholar_title');

    //Sort out the authors
    $i = 0;
    foreach ($variables['biblio_contributors'] as $author) {
      $author_types = array(
        1,
        2,
        3,
        4,
      );
      if (in_array($author['auth_type'], $author_types)) {
        drupal_add_html_head(array(
          '#tag' => 'meta',
          '#attributes' => array(
            'name' => 'citation_author',
            'content' => $author['name'],
          ),
          '#weight' => $i,
        ), 'biblio_scholar_author' . $i);
        $i++;
      }
    }
    if ($variables['biblio_year'] != '') {
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_publication_date',
          'content' => $variables['biblio_year'],
        ),
      ), 'biblio_scholar_publication_date');
    }
    if ($variables['biblio_secondary_title'] != '') {
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_journal_title',
          'content' => $variables['biblio_secondary_title'],
        ),
      ), 'biblio_scholar_secondary_title');
    }
    if ($variables['biblio_volume'] != '') {
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_volume',
          'content' => $variables['biblio_volume'],
        ),
      ), 'biblio_scholar_volume');
    }
    if ($variables['biblio_issue'] != '') {
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_issue',
          'content' => $variables['biblio_issue'],
        ),
      ), 'biblio_scholar_issue');
    }
    if ($variables['biblio_isbn'] != '') {
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_isbn',
          'content' => $variables['biblio_isbn'],
        ),
      ), 'biblio_scholar_isbn');
    }
    if ($variables['biblio_issn'] != '') {

      // drupal_set_html_head('<meta name="citation_issn" content="' . $variables['biblio_issn'] . '"/>');
      drupal_add_html_head(array(
        '#tag' => 'meta',
        '#attributes' => array(
          'name' => 'citation_issn',
          'content' => $variables['biblio_issn'],
        ),
      ), 'biblio_scholar_issn');
    }
    foreach ($variables as $key => $field) {
      if (is_array($field) && isset($field[0]['fid'])) {
        foreach ($field as $file) {
          if ($file['filemime'] == 'application/pdf') {
            drupal_add_html_head(array(
              '#tag' => 'meta',
              '#attributes' => array(
                'name' => 'citation_pdf_url',
                'content' => url(file_create_url($file['uri']), array(
                  'absolute' => TRUE,
                )),
              ),
            ), 'biblio_scholar_url');
          }
        }
      }
    }
  }
}

Functions

Name	Description
biblio_scholar_preprocess_node	@file Add Google Scholar metatags to Biblio node pages