Actualización masiva de nodos Drupal 7

$query = new EntityFieldQuery();

$query->entityCondition('entity_type', 'node') ->entityCondition('bundle', 'nodetype');

$results = $query->execute();

foreach($results['node'] as $key => $node){ $node = node_load($node->nid); $node = entity_metadata_wrapper('node', $node); if( condition ){ $node->field_tipo_de_minisitio->set(41799); $node->save(); }else{ dpm( $node->field_tipo_de_minisitio->value() ); } }