function views_plugin_argument_validate_taxonomy_term::validate_argument

Overrides views_plugin_argument_validate::validate_argument

File

core/modules/taxonomy/views/views_plugin_argument_validate_taxonomy_term.inc, line 84

Contains the 'taxonomy term' argument validator plugin.

Class

views_plugin_argument_validate_taxonomy_term

Validate whether an argument is an acceptable node.

Code

function validate_argument($argument) {
  $vocabularies = array_filter($this->options['vocabularies']);
  $type = $this->options['type'];
  $transform = $this->options['transform'];

  switch ($type) {
    case 'tid':
      if (!is_numeric($argument)) {
        return FALSE;
      }

      $query = db_select('taxonomy_term_data', 'td');
      $query->fields('td');
      $query->condition('td.tid', $argument);
      $query->addTag('taxonomy_term_access');
      $term = $query->execute()->fetchObject();
      if (!$term) {
        return FALSE;
      }
      $term = taxonomy_term_load($term->tid);
      $this->argument->validated_title = check_plain(entity_label('taxonomy_term', $term));
      return empty($vocabularies) || !empty($vocabularies[$term->vocabulary]);

    case 'tids':
      // An empty argument is not a term so doesn't pass.
      if (empty($argument)) {
        return FALSE;
      }

      $tids = new stdClass();
      $tids->value = $argument;
      $tids = views_break_phrase($argument, $tids);
      if ($tids->value == array(-1)) {
        return FALSE;
      }

      $test = backdrop_map_assoc($tids->value);
      $titles = array();

      // check, if some tids already verified
      static $validated_cache = array();
      foreach ($test as $tid) {
        if (isset($validated_cache[$tid])) {
          if ($validated_cache[$tid] === FALSE) {
            return FALSE;
          }
          else {
            $titles[] = $validated_cache[$tid];
            unset($test[$tid]);
          }
        }
      }

      // if unverified tids left - verify them and cache results
      if (count($test)) {
        $query = db_select('taxonomy_term_data', 'td');
        $query->addTag('taxonomy_term_access');
        $query->fields('td');
        $query->condition('td.tid', $test);

        $result = $query->execute();

        foreach ($result as $term) {
          if ($vocabularies && empty($vocabularies[$term->vocabulary])) {
            $validated_cache[$term->tid] = FALSE;
            return FALSE;
          }
          $term = taxonomy_term_load($term->tid);
          $titles[] = $validated_cache[$term->tid] = check_plain(entity_label('taxonomy_term', $term));
          unset($test[$term->tid]);
        }
      }

      // Remove duplicate titles
      $titles = array_unique($titles);

      $this->argument->validated_title = implode($tids->operator == 'or' ? ' + ' : ', ', $titles);
      // If this is not empty, we did not find a tid.
      return empty($test);

    case 'name':
    case 'convert':
      $query = db_select('taxonomy_term_data', 'td');
      $query->addTag('taxonomy_term_access');
      $query->fields('td');
      if (!empty($vocabularies)) {
        $query->condition('td.vocabulary', $vocabularies);
      }
      if ($transform) {
        $query->where("replace(td.name, ' ', '-') = :name", array(':name' => $argument));
      }
      else {
        $query->condition('td.name', $argument);
      }
      $term = $query->execute()->fetchObject();

      if ($term && (empty($vocabularies) || !empty($vocabularies[$term->vocabulary]))) {
        if ($type == 'convert') {
          $this->argument->argument = $term->tid;
        }
        $term = taxonomy_term_load($term->tid);
        $this->argument->validated_title = check_plain(entity_label('taxonomy_term', $term));
        return TRUE;
      }
      return FALSE;
  }
}