<?php
// $Id: views_handler_filter_node_access.inc,v 1.2 2009/09/15 22:08:42 merlinofchaos Exp $
/**
 * Filter by node_access records.
 */
class views_handler_filter_node_access extends views_handler_filter_in_operator {
  function can_expose() {
    return FALSE;
  }

  function operators() {
    return array(
      'in' => array(
        'title' => t('Can access'),
        'short' => t('access'),
        'method' => 'op_simple',
        'values' => 1,
      ),
    );
  } 

  function get_value_options() {
     $this->value_options = array(
      'grant_view' => 'View',
      'grant_update' => 'Edit',
      'grant_delete' => 'Delete',
    );
  }

  /**
   * See _node_access_where_sql() for a non-views query based implementation.
   */
  function query() {
    if(empty($this->value))
      return;
    if (TRUE) { //(!user_access('administer nodes')) {
      $table = $this->ensure_my_table();
      $grants = array();
      foreach (node_access_grants('view') as $realm => $gids) {
        foreach ($gids as $gid) {
          $grants[] = "($table.gid = $gid AND $table.realm = '$realm')";
        }
      }
      $grants_sql = '';
      if (count($grants)) {
        $grants_sql = implode(' OR ', $grants);
      }
      $this->query->add_where('AND', $grants_sql);
      foreach($this->value as $value) {
        $this->query->add_where('AND', "$table.$value >= 1");
      }
    }
  }
}