public function UniqueFieldValidationRule::validate in Field Validation 8

Overrides FieldValidationRuleBase::validate

File

src/Plugin/FieldValidationRule/UniqueFieldValidationRule.php, line 82

Class

UniqueFieldValidationRule

UniqueFieldValidationRule.

Namespace

Drupal\field_validation\Plugin\FieldValidationRule

Code

public function validate($params) {
  $value = isset($params['value']) ? $params['value'] : '';
  $rule = isset($params['rule']) ? $params['rule'] : null;
  $context = isset($params['context']) ? $params['context'] : null;
  $items = isset($params['items']) ? $params['items'] : array();
  $delta = isset($params['delta']) ? $params['delta'] : '';
  $column = $rule
    ->getColumn();
  $settings = array();
  if (!empty($rule) && !empty($rule->configuration)) {
    $settings = $rule->configuration;
  }
  $flag = TRUE;
  $scope = isset($settings['scope']) ? $settings['scope'] : '';
  $per_user = $settings['per_user'] ?? FALSE;
  $count = 0;
  foreach ($items as $delta1 => $item1) {
    if ($delta != $delta1) {
      if ($value == $item1->{$column}) {
        $flag = FALSE;
        break;
      }
    }
  }
  if ($flag) {
    $entity = $items
      ->getEntity();
    $entity_type_id = $entity
      ->getEntityTypeId();
    $query = \Drupal::entityQuery($entity_type_id);
    $query
      ->addTag('field_validation');
    $query
      ->accessCheck(FALSE);
    if ($scope == 'bundle') {
      $bundle = $entity
        ->bundle();
      $bundle_key = $entity
        ->getEntityType()
        ->getKey('bundle');

      /*		
      	    $bundle_keys = [
        "node" => "type",
        "taxonomy_term" => "vid",
        "comment" => "comment_type",
        "block_content" => "type",
      ];
      */
      if (!empty($bundle_key)) {
        $query
          ->condition($bundle_key, $bundle);
      }
    }
    if ($per_user) {
      $query
        ->condition('uid', \Drupal::currentUser()
        ->id());
    }
    $id_key = $entity
      ->getEntityType()
      ->getKey('id');
    $query
      ->condition($id_key, (int) $items
      ->getEntity()
      ->id(), '<>');
    $field_name = $items
      ->getFieldDefinition()
      ->getName();
    if (!empty($column)) {
      $field_name = $field_name . '.' . $column;
    }
    $query
      ->condition($field_name, $value);
    $count = $query
      ->range(0, 1)
      ->count()
      ->execute();
    if ($count) {
      $flag = FALSE;
    }
  }
  if (!$flag) {
    $context
      ->addViolation($rule
      ->getErrorMessage());
  }

  //return true;
}