commons_search.module in Drupal Commons 7.3

File

modules/commons/commons_search/commons_search.module

<?php

/**
 * commons_search.module
 * Code for the Commons Search feature.
 */
include_once 'commons_search.features.inc';

/**
 * Implements hook_module_implements_alter().
 */
function commons_search_module_implements_alter(&$implementations, $hook) {
  if ($hook == 'form_alter') {

    // We move commons_search to the end so it gets processed last.
    $group = $implementations['commons_search'];
    unset($implementations['commons_search']);
    $implementations['commons_search'] = $group;
  }
}

/**
 * Implements hook_menu_alter().
 */
function commons_search_menu_alter(&$items) {

  // Enable the search link and position it in the main menu.
  if (isset($items['search'])) {
    $items['search']['type'] = MENU_NORMAL_ITEM;
    $items['search']['menu_name'] = 'main-menu';
    $items['search']['weight'] = 3;
  }
}

/**
 * Custom search form that switches between Core and Solr depending on which is
 * the enabled search module.
 */
function commons_search_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'search_block_form') {

    // Move the textfield to after the drop down.
    $site_key = 'c-all';
    $form['search_block_form']['#weight'] = 1;
    if (module_exists('commons_search_core')) {

      // We're using faceted core search, so change Site search key to reflect
      // the change of search engines.
      $site_key = 'o-search_facetapi';
    }
    else {
      if (module_exists('apachesolr_search')) {

        // Are we using Apache Solr? If so change the Site search key to reflect
        // the change of search engines.
        $site_key = 'o-solr';
      }
    }

    // Overwrite all options so we only have 3 (at most).
    $form['custom_search_types']['#options'] = array(
      $site_key => t('Site'),
      'c-user' => t('Users'),
    );
    $group = FALSE;
    $node = current_path();
    if ((strrpos($node, 'node/') !== FALSE || strrpos($node, 'group/') !== FALSE) && is_numeric(substr($node, strrpos($node, '/') + 1))) {

      // If we're on a page that looks like a group node, see if it is actually
      // a group node.
      $node = node_load(substr($node, strrpos($node, '/') + 1));
      if (!empty($node)) {
        $group = $node->type == 'group';
      }
    }
    if ($group) {

      // Current page is a group node, so add group search option to the
      // dropdown menu and set the current group id.
      $form['custom_search_types']['#options']['o-commons_search'] = t('This group');
      $form['custom_search_types']["#default_value"] = 'o-commons_search';
      $form_state['search_group_id'] = $node->nid;
    }
    if (arg(0) == 'search') {

      // If we've already searched, refill the search box with the current
      // search keywords.
      $form['search_block_form']['#default_value'] = check_plain(arg(2));
      if (arg(1) == 'user') {
        $form['custom_search_types']["#default_value"] = 'c-user';
      }
    }
    $keys = arg(2);
    if (!module_exists('commons_search_solr') && !empty($keys)) {

      // Remove the search keys from the form action only if we're using core search.
      $form['#action'] = str_replace("/" . check_plain(arg(2)), '', $form['#action']);
    }
  }
}

/**
 * Search form submit handler.
 * Add group id filter if appropriate.
 */
function commons_search_search_form_submit($form, &$form_state) {
  if ($form_state['values']['custom_search_types'] == 'o-commons_search' && isset($form_state['search_group_id'])) {
    $keys = $form_state['values']['search_block_form'];
    if (module_exists('apachesolr_search')) {

      // Add on a filter to the solr query to only list results within the
      // specified group.
      $qm = strpos($form_state['redirect'], '?') !== FALSE ? '' : '?';
      $form_state['redirect'] .= $qm . '&f[1]=sm_og_group_ref:node:' . $form_state['search_group_id'];
    }
    else {

      // Using core search to search within a group doesn't work, so we simply
      // use a view with exposed search terms to do the searching.
      drupal_goto('search/group/' . $form_state['search_group_id'], array(
        'query' => array(
          'keys' => $keys,
        ),
      ));
    }
  }
  else {
    if ($form_state['values']['custom_search_types'] == 'c-user') {

      // Force update the redirect on User search since Custom Search is weird.
      $keys = check_plain($form_state['values']['search_block_form']);
      $form_state['redirect'] = 'search/user/' . $keys;
    }
  }
}
function commons_search_process_search_result(&$variables) {
}

/**
 * Implements hook_preprocess_hook().
 */
function commons_search_process_search_results(&$variables) {
  $variables['result_count'] = count($variables['results']);
  if (isset($variables['response']) && isset($variables['response']->request) && preg_match('/sm_og_group_ref:"node:([0-9]+)"&/', urldecode($variables['response']->request), $match)) {
    $group = node_load($match[1]);
    $title = t('Search within !group', array(
      '!group' => '<em>' . $group->title . '</em>',
    ));
    $variables['title'] = $title;
  }
}

/**
 * Implements hook_theme_registry_alter().
 */
function commons_search_theme_registry_alter(&$theme_registry) {

  // Remove AT breadcrumb preprocess since it adds raw RDFa data into the title.
  $theme_registry['breadcrumb']['preprocess functions'] = array_flip($theme_registry['breadcrumb']['preprocess functions']);
  unset($theme_registry['breadcrumb']['preprocess functions']['adaptivetheme_preprocess_breadcrumb']);
  $theme_registry['breadcrumb']['preprocess functions'] = array_flip($theme_registry['breadcrumb']['preprocess functions']);
}

Functions

Name	Description
commons_search_form_alter	Custom search form that switches between Core and Solr depending on which is the enabled search module.
commons_search_menu_alter	Implements hook_menu_alter().
commons_search_module_implements_alter	Implements hook_module_implements_alter().
commons_search_process_search_result
commons_search_process_search_results	Implements hook_preprocess_hook().
commons_search_search_form_submit	Search form submit handler. Add group id filter if appropriate.
commons_search_theme_registry_alter	Implements hook_theme_registry_alter().