discussthis.autocomplete.inc in Discuss This! 6

Function to compute the auto-complete string used in the discussion title.

File

discussthis.autocomplete.inc

<?php

/**
 * @file
 * Function to compute the auto-complete string used in the discussion title.
 */

/**
 * \brief Autocomplete a forum topic discussion title.
 *
 * The function does not return if the auto-complete feature
 * worked. Otherwise, it returns NULL.
 *
 * \note
 * The previous version included a $tid parameter. It was not
 * being used and it would not work properly if the user was
 * creating a new node (i.e. you cannot select a forum, then a
 * title, at least, not dynamically... and it was shown as being
 * like that before.)
 *
 * \param[in] $string The user string so far
 */
function discussthis_autocomplete($string = '') {

  // anything yet?
  if (!$string) {
    echo drupal_to_js(array());
    exit;
  }

  // current user has the right to do that?!
  if (!user_access('access content')) {
    drupal_access_denied();
    return;
  }

  // Grab the first 10 forum nodes with titles like the string typed by the user so far
  $sql = "SELECT n.nid, n.title FROM {node} n" . " WHERE n.type = 'forum' AND LOWER(n.title) LIKE LOWER";
  if (variable_get('discussthis_autocomplete_contains', 0)) {

    // a LIKE pattern that starts with % can be slow...
    $sql .= "('%%%s%%')";
  }
  else {
    $sql .= "('%s%%')";
  }
  $result = db_query_range(db_rewrite_sql($sql), $string, 0, 10);
  $matches = array();
  while ($node = db_fetch_object($result)) {
    $matches[$node->nid] = check_plain($node->title) . ' [nid:' . $node->nid . ']';
  }
  echo drupal_to_js($matches);
  exit;
}

// vim: ts=2 sw=2 et syntax=php

Functions

Name	Description
discussthis_autocomplete	\brief Autocomplete a forum topic discussion title.