public function SimilarTermsArgument::validateArgument in Similar By Terms 8

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

Overrides ArgumentPluginBase::validateArgument

File

src/Plugin/views/argument/SimilarTermsArgument.php, line 107

Class

SimilarTermsArgument

Argument handler to accept a node id.

Namespace

Drupal\similarterms\Plugin\views\argument

Code

public function validateArgument($arg) {
  if (isset($this->argument_validated)) {
    return $this->argument_validated;
  }
  $this->value = [
    $arg => $arg,
  ];
  $vocabulary_vids = empty($this->options['vocabularies']) ? [] : $this->options['vocabularies'];
  foreach ($vocabulary_vids as $key => $val) {
    if ($val === 0) {
      unset($vocabulary_vids[$key]);
    }
  }
  $select = $this->connection
    ->select('taxonomy_index', 'ti')
    ->fields('ti', [
    'tid',
  ]);
  if (count($vocabulary_vids)) {
    $select
      ->join('taxonomy_term_data', 'td', 'ti.tid = td.tid');
    $select
      ->condition('td.vid', $vocabulary_vids, 'IN');
  }
  $select
    ->condition('ti.nid', $this->value, 'IN');
  $result = $select
    ->execute();
  $this->tids = [];
  foreach ($result as $row) {
    $this->tids[$row->tid] = $row->tid;
  }
  $this->view->tids = $this->tids;
  if (count($this->tids) == 0) {
    return FALSE;
  }
  return TRUE;
}