<?php// $Id$/** * @file * Enables searching of non-Drupal content. *//** * Implementation of hook_update_index(). */function legacysearch_update_index() {  // We define these variables as global so our shutdown function can  // access them.  global $last_change, $last_id;  // If PHP times out while indexing, run a function to save  // information about how far we got so we can continue at next cron run.  register_shutdown_function('legacysearch_update_shutdown');  $last_id = variable_get('legacysearch_cron_last_id', 0);  $last_change = variable_get('legacysearch_cron_last_change', 0);  // Switch database connection to legacy database.  db_set_active('technote');  $result = db_query("SELECT id, title, note, last_modified                      FROM {technote}                      WHERE (id > %d) OR (last_modified > %d)                      ORDER BY last_modified ASC", $last_id, $last_change);  // Switch database connection back to Drupal database.  db_set_active('default');  // Feed the external information to the search indexer.  while ($data = db_fetch_object($result)) {    $last_change = $data->last_modified;    $last_id = $data->id;    $text = '<h1>' . check_plain($data->title) . '</h1>' . $data->note;    search_index($data->id, 'technote', $text);  }}/** * Shutdown function to make sure we remember the last element processed. */function legacysearch_update_shutdown() {  global $last_change, $last_id;  if ($last_change && $last_id) {    variable_set('legacysearch_cron_last', $last_change);    variable_set('legacysearch_cron_last_id', $last_id);  }}/** * Implementation of hook_search(). */function legacysearch_search($op = 'search', $keys = NULL) {  switch ($op) {    case 'name':      return t('Tech Notes'); // Used on search tab.    case 'reset':      variable_del('legacysearch_cron_last');      variable_del('legacysearch_cron_last_id');      return;    case 'search':      // Search the index for the keywords that were entered.      $hits = do_search($keys, 'technote');      $results = array();      // Prepend URL of legacy system to each result. Assume a legacy URL      // for a given tech note is http://technotes.example.com/note.pl?3      $legacy_url = 'http://technotes.example.com/';      // We now have the IDs of the results. Pull each result       // from the legacy database.      foreach ($hits as $item) {        db_set_active('technote');        $note = db_fetch_object(db_query("SELECT * FROM {technote} WHERE           id = %d", $item->sid));        db_set_active('default');        $results[] = array(          'link' => url($legacy_url . 'note.pl?' . $item->sid, NULL, NULL, TRUE),          'type' => t('Note'),          'title' => $note->title,          'date' => $note->last_modified,          'score' => $item->score,          'snippet' => search_excerpt($keys, $note->note));      }      return $results;  }}