function similarterms_handler_argument_node_nid::validate_arg in Similar By Terms 7.2

Same name and namespace in other branches

1. 6.2 views/similarterms_handler_argument_node_nid.inc \similarterms_handler_argument_node_nid::validate_arg()

Validate that this argument works. By default, all arguments are valid.

Overrides views_handler_argument::validate_arg

File

views/similarterms_handler_argument_node_nid.inc, line 73

Class

similarterms_handler_argument_node_nid

Argument handler to accept a node id. based on node_handler_argument_node_nid except that it doesn't add a where clause to the query.

Code

function validate_arg($arg) {

  // first run the inherited arg validation
  if (!parent::validate_arg($arg)) {
    return FALSE;
  }
  if (!empty($this->options['break_phrase'])) {
    views_break_phrase($this->argument, $this);
  }
  else {
    $this->value = array(
      $this->argument,
    );
  }

  // $vocabulary_vids is array of vocabulary ids (a.k.a. vids, confusing right?)
  $vocabulary_vids = empty($this->options['vocabularies']) ? array() : $this->options['vocabularies'];
  foreach ($vocabulary_vids as $key => $val) {
    if ($val === 0) {
      unset($vocabulary_vids[$key]);
    }
  }
  $select = db_select('taxonomy_index', 'ti');
  $select
    ->addField('ti', 'tid');
  if (count($vocabulary_vids)) {
    $select
      ->join('taxonomy_term_data', 'td', 'ti.tid = td.tid');
    $select
      ->join('taxonomy_vocabulary', 'tv', 'tv.vid = td.vid');
    $select
      ->condition('tv.machine_name', $vocabulary_vids, 'IN');
  }
  $select
    ->condition('ti.nid', $this->value, 'IN');
  $result = $select
    ->execute();
  $this->tids = array();
  foreach ($result as $row) {
    $this->tids[$row->tid] = $row->tid;
  }
  $this->view->tids = $this->tids;
  if (count($this->tids) == 0) {

    // there are no terms ... we need to cancel the query and bail out
    return FALSE;
  }
  return TRUE;
}