artesis_netarchive.module

<?php
/**
 * @file
 * Add link to archived pdf articles of Ting objects.
 */

// Load Field module hooks.
module_load_include('inc', 'artesis_netarchive', 'artesis_netarchive.field');

/**
 * Implements hook_menu().
 */
function artesis_netarchive_menu() {
  $items = array();

  $items['ting/netarchive'] = array(
    'title' => 'Retreives netarchive for Ting objects',
    'page callback' => 'artesis_netarchive_objects',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
    'file' => 'artesis_netarchive.pages.inc',
  );

  return $items;
}

/**
 * Implements hook_theme().
 */
function artesis_netarchive_theme() {
  return array(
    'artesis_netarchive_link_theme' => array(
      'render element' => 'elements',
      'file' => 'artesis_netarchive.theme.inc',
    ),
  );
}

/**
 * Implements hook_preprocess_ting_object().
 *
 * Force the field to appear above the ding_entity_buttons.
 */
function artesis_netarchive_preprocess_ting_object(&$variables) {
  // Dive in only for 'search_result' view mode.
  if ('search_result' !== $variables['elements']['#view_mode']) {
    return;
  }

  $elements = &$variables['elements'];
  if (!array_key_exists('group_content', $elements['#groups'])) {
    return;
  }

  $content = &$variables['content'];
  if (!array_key_exists('ding_entity_buttons', $content) || !array_key_exists('netarchive_link', $content)) {
    return;
  }

  $content['netarchive_link']['#weight'] = $content['ding_entity_buttons']['#weight'] - 1;

  // There are two keys, which are references to same object: #groups and #fieldgroups.
  // Populating #groups will populate #fieldgroups as well.
  if (!in_array('netarchive_link', $elements['#groups']['group_content']->children)) {
    $elements['#groups']['group_content']->children[] = 'netarchive_link';
  }

  // Enforce specific group regardless what's there already.
  $elements['#group_children']['netarchive_link'] = 'group_content';
}