$content[type]  = array (
  'name' => 'Forum Topic',
  'type' => 'topic',
  'description' => 'Forum topics will show up on the forum page. Users can post comments to forum topics.',
  'title_label' => 'Title',
  'body_label' => 'Body',
  'min_word_count' => '0',
  'help' => '',
  'node_options' => 
  array (
    'status' => true,
    'promote' => false,
    'sticky' => false,
    'revision' => false,
  ),
  'comment' => '2',
  'upload' => '1',
  'excerpt' => '0',
  'excerpt_wt' => '0',
  'comment_talk' => 0,
  'old_type' => 'topic',
  'orig_type' => '',
  'module' => 'node',
  'custom' => '1',
  'modified' => '1',
  'locked' => '0',
);
$content[fields]  = array (
  0 => 
  array (
    'widget_type' => 'options_select',
    'label' => 'forum',
    'weight' => '0',
    'description' => 'Your group administrator may have defined a way for you to categorize your forum topics in a way that is appropriate for your group.',
    'default_value_widget' => 
    array (
      'field_forum' => 
      array (
        'key' => '',
      ),
    ),
    'default_value_php' => '',
    'group' => false,
    'required' => '0',
    'multiple' => '0',
    'text_processing' => '0',
    'max_length' => '',
    'allowed_values' => '',
    'allowed_values_php' => 'if (arg(0) == \'node\') {
$values = array();
  $group = og_get_group_context();
  $node = node_load($group->nid);
  foreach($node->field_forums as $value) {
    $values[] = $value[\'value\'];
  }
}
  return $values;',
    'field_name' => 'field_forum',
    'field_type' => 'text',
    'module' => 'text, optionwidgets',
    'default_value' => 
    array (
      0 => 
      array (
        'value' => '',
      ),
    ),
  ),
);