linkit_node.module in Linkit 6

Extend Linkit with node links.

File

plugins/linkit_node/linkit_node.module

<?php

/**
 * @file
 * Extend Linkit with node links.
 */

/**
 * Implementation of hook_linkit_load_plugins().
 */
function linkit_node_linkit_load_plugins($string) {
  $matches = array();
  $settings = variable_get('linkit_node', array());

  // Prevent "PHP notice: Undefined variable"
  _linkit_node_get_default_settings($settings);
  $fields = array(
    'n.nid',
    'n.title',
  );

  // default fields
  $from = array(
    '{node} n',
  );

  // default from
  $where = array();

  // default where
  if ($settings['display_settings']['content_type']) {
    $from[] = 'INNER JOIN {node_type} nt ON nt.type = n.type';
    $fields[] = 'nt.name AS content_type';
  }
  if ($settings['display_settings']['status']) {
    $fields[] = 'n.status';
  }
  if ($settings['display_settings']['language']) {
    $fields[] = 'n.language';
  }
  if ($settings['display_settings']['created']) {
    $fields[] = 'n.created';
  }
  if ($settings['display_settings']['changed']) {
    $fields[] = 'n.changed';
  }
  if ($settings['display_settings']['show_books'] && module_exists('book')) {
    $from[] = 'LEFT JOIN {book} b ON b.nid = n.nid';
    $fields[] = 'b.bid';
  }
  if (!$settings['display_settings']['show_unpublished']) {
    $where[] = "AND n.status = 1";
  }

  // Prebuild the SQL query
  $sql = array();
  $sql[] = "SELECT %s";
  $sql[] = "FROM " . implode(" ", $from);
  $sql[] = "WHERE LOWER(n.title) LIKE LOWER('%%%s%%') %s";

  // Content type check
  if ($allowed_content_types = array_filter($settings['content_types'])) {
    $allowed_content_types = implode("', '", $allowed_content_types);

    // Special treatment!!
    // If we push this to the $where array, the single-quotes will be
    // escaped and result in a SQL error.
    // I asked chx if its ok to use the content type machine name
    // "as it is" in this query and he said ok and I trust him.
    $sql[] = " AND n.type IN ('" . $allowed_content_types . "')";
  }

  // Get nodes
  $result = db_query(db_rewrite_sql(implode(" ", $sql)), implode(",", $fields), $string, implode(" ", $where));
  $i = 0;
  while ($node = db_fetch_object($result)) {
    $matches['node'][$i] = array(
      'title' => $node->title,
      'path' => 'internal:node/' . $node->nid,
      'information' => array(
        'type' => 'Node',
      ),
    );

    // Add the node nid
    if ($settings['display_settings']['nid']) {
      $matches['node'][$i]['information']['nid'] = $node->nid;
    }

    // Add the node content type
    if ($settings['display_settings']['content_type']) {
      $matches['node'][$i]['information']['content type'] = $node->content_type;
    }

    // Add the node status
    if ($settings['display_settings']['status']) {
      $matches['node'][$i]['information']['status'] = $node->status ? t('published') : t('unpublished');
    }

    // Add the node language
    if ($settings['display_settings']['language']) {
      $matches['node'][$i]['information']['language'] = $node->language ? $node->language : '-';
    }

    // Add the node created time
    if ($settings['display_settings']['created']) {
      $matches['node'][$i]['information']['created'] = $node->created ? format_date($node->created, 'small') : '-';
    }

    // Add the node changed time
    if ($settings['display_settings']['changed']) {
      $matches['node'][$i]['information']['changed'] = $node->changed ? format_date($node->changed, 'small') : '-';
    }

    // Add Title of the book a node belong to
    if ($settings['display_settings']['show_books'] && $node->bid) {
      $book_node = node_load($node->bid);
      $matches['node'][$i]['information']['book'] = $book_node->title;
    }
    $i++;
  }
  return $matches;
}

/**
 * Implementation of hook_linkit_get_search_styled_link().
 */
function linkit_node_linkit_get_search_styled_link($string) {

  // Node links created with Linkit will always begin with "internal:"
  if (strpos($string, 'internal:') === FALSE) {
    return;
  }

  // Check to see that the link really is a node link
  $splitted_string = explode('/', str_replace('internal:', '', $string));
  if ($splitted_string[0] != 'node') {
    return;
  }

  // This is a node link created with Linkit, try to grab the title and path now.
  $result = db_query(db_rewrite_sql("SELECT n.nid, n.title FROM {node} n WHERE n.nid = %d"), $splitted_string[1]);
  $node = db_fetch_object($result);

  // No reault or no node was found
  if (!$result || !$node) {
    return;
  }
  return check_plain($node->title) . ' [path:internal:node/' . $node->nid . ']';
}

/**
 * Implementation of hook_linkit_info_plugins().
 *
 * This is used by linkit_permissions
 */
function linkit_node_linkit_info_plugins() {
  $return['linkit_node'] = array(
    'type' => 'node',
  );
  return $return;
}

/**
 * Prevent "PHP notice: Undefined variable" by merging the settings
 * with the defule values
 */
function _linkit_node_get_default_settings(&$settings) {

  // Merge settings with the default settings
  $settings += array(
    'display_settings' => array(),
    'content_types' => array(),
  );
  $settings['display_settings'] += array(
    'nid' => 0,
    'content_type' => 0,
    'status' => 0,
    'language' => 0,
    'created' => 0,
    'changed' => 0,
    'show_unpublished' => 0,
    'show_books' => 0,
  );
}

Functions

Name	Description
linkit_node_linkit_get_search_styled_link	Implementation of hook_linkit_get_search_styled_link().
linkit_node_linkit_info_plugins	Implementation of hook_linkit_info_plugins().
linkit_node_linkit_load_plugins	Implementation of hook_linkit_load_plugins().
_linkit_node_get_default_settings	Prevent "PHP notice: Undefined variable" by merging the settings with the defule values