Group specific search block

Some code from groups.drupal.org for a group specific search block. Since the integration module is owned by apachesolr right now - tag you're it.

function groupsorg_groupsearch_block_view() {
  if (!module_exists('apachesolr') || !user_access('search content')) {
    return;
  }
  if ($groupnode = og_get_group_context()) {
    $block['content'] = drupal_get_form('groupsorg_groupsearch_form', $groupnode);
    $block['subject'] = l($groupnode->title, "node/$groupnode->nid");
    return $block;
  }
}

function groupsorg_groupsearch_form(&$form_state, $groupnode) {
  if (!empty($groupnode) && !empty($groupnode->nid)) {
    $form['filters'] = array(
        '#type' => 'hidden',
        '#value' => 'im_og_gid:' . $groupnode->nid,
    );
    $form['retain-filters'] = array(
      '#type' => 'hidden',
      '#value' => 1,
    );
    
    $form['#action'] = url('search/apachesolr_search');
    $form['#method'] = 'GET';
    $form['keys'] = array(
      '#type' => 'textfield',
      '#title' => t('Enter keywords'),
      '#description' => t('Search is automatically restricted to posts in this group.'),
      '#size' => 40,
      '#maxlength' => 255,
    );
    $form['search'] = array(
      '#type' => 'submit',
      '#value' => t('Search'),
    );
    return $form;
  }
}