ApacheSolr Notifications Module?

I'm working on something similar: we would somehow flag queries (thinking it would be an add-on to the flag module), and there'd be an RSS feed (instead of an email) that aggregates those queries. I think I already reused some code from opensearch.module to build the RSS channel.

I like the idea of the email too; however in our case we're trying to delegate more functionality to external tools.

How does that sound?

Maybe this code will help. Hope it's self-explanatory =)

/**
 * Outputs an RSS-formatted channel of aggregated search results defined by
 * fields in nodes.
 * 
 * @param $queries array
 *   An array of queries: each element should have an array with keywords and
 *   filters. E.g.: 
 *     $queries = array(
 *       array('kw' => 'keyword1 keyword2', 'filters' => 'tid:1',
 *       array('kw' => 'keyword', 'filters' => 'tid:2 tid:3',
 *       array('kw' => '', 'filters' => 'type:page')
 *     );
 * @param $channel_title string
 * @param $channel_path string
 *   A drupal path (url() syntax).
 * @param $channel_description string
 * @param $limit int
 *   Number of result items to return in the RSS channel. Defaults to 20.
 */
function mymodule_aggregatequeries($queries, $channel_title, $channel_path, $channel_description, $limit = 20) {
  if (!is_array($queries)) {
    return "";
  }

  // Run the queries against apachesolr
  $all_results = array();
  foreach ($queries as $query) {
    $results = apachesolr_search_execute($query['kw'], $query['filters'], 'created desc', 'search/apachesolr_search', 0);
    $response = apachesolr_static_response_cache();
    $found = $response->response->numFound;
    apachesolr_has_searched(FALSE);
    if ($found) {
      $all_results = array_merge($all_results, $results);
    }
  }

  // Reorder results by date created
  usort($all_results, create_function('$a,$b', 'return ($a["date"] < $b["date"]);'));

  // Limit to first $limit items
  $all_results = array_slice($all_results, 0, $limit);

  // Make links absolute
  foreach ($all_results as $index => $result) {
    $all_results[$index]['link'] = $GLOBALS["base_url"] . $all_results[$index]['link'];
  }
  
  // Output an XML channel with the items
 $namespaces = array(
    'xmlns:dc="http://purl.org/dc/elements/1.1/"',
    'xmlns:relevance="http://a9.com/-/opensearch/extensions/relevance/1.0/"'
  );

  foreach ($all_results as $result) {
    $items .= format_rss_item($result['title'], $result['link'], $result['snippet'], array('relevance:score' => (float)$result['score']));
  }

  $output = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n";
  $output .= "<rss version=\"2.0\" xml:base=\"". url('', array('absolute' => TRUE)) ."\" ". implode(' ', $namespaces) .">\n";
  $output .= format_rss_channel(
    $channel_title,
    url($channel_path, array('absolute' => TRUE)),
    $channel_description,
    $items,
    $GLOBALS["locale"]
  );
  $output .= "</rss>\n";

  drupal_set_header('Content-Type: application/rss+xml; charset=utf-8');
  print $output;
  exit;
}

Sub. This is something that may be done as part of a project I'm a part of. I'll update if/when this piece of work moves forward and has been completed.

Subscribe. Very interesting.

Subscribe too

This should be a contrib module. Extremely unlikely to make it into this module.

The links to the code are no longer working. Is this still available some where?