vsite.module

<?php


/**
 * Implementation of hook_ctools_plugin_api().
 */
function vsite_ctools_plugin_api($module, $api) {
  if ($module == "vsite" && $api == "vsite") {
    return array("version" => 2);
  }
  else if ($module == 'vsite' && $api == 'plugins') {
    return array('version' => 2);
  }
}

/**
 * Implementation of hook spaces_plugins
 */
function vsite_spaces_plugins() {
  $plugins = array();
  $plugins['vsite'] = array(
    'handler' => array(
      'path' => drupal_get_path('module', 'vsite') .'/plugins',
      'file' => 'vsite.inc',
      'class' => 'vsite',
      'parent' => 'space_og',
    ),
  );
  return $plugins;
}

/**
 * Alter the registry to replace spaces_og with vsite
 */
function vsite_spaces_registry_alter(&$registry){

  if (isset($registry['types']['og'])) {
    $registry['types']['og']['plugin'] = 'vsite';
  }
}