protected function Bean::checkDelta in Bean (for Drupal 7) 7

Set the delta function

File

includes/bean.core.inc, line 395

Bean classes and plugin interface

Class

Bean

The Bean entity class

Code

protected function checkDelta() {
  if (empty($this->delta)) {
    $max_length = 32;

    // Base it on the label and make sure it isn't too long for the database.
    if (module_exists('transliteration')) {
      $delta = drupal_clean_css_identifier(strtolower(transliteration_get($this->label)));
    }
    else {
      $delta = drupal_clean_css_identifier(strtolower($this->label));
    }

    // Add 'bean-' prefix when it's need to avoid a purely numeric delta.
    if (is_numeric($delta)) {
      $delta = 'bean-' . $delta;
    }
    $this->delta = substr($delta, 0, $max_length);

    // Check if delta is unique.
    if ($this
      ->deltaExists($this->delta)) {
      $i = 0;
      $separator = '-';
      $original_delta = $this->delta;
      do {
        $unique_suffix = $separator . $i++;
        $this->delta = substr($original_delta, 0, $max_length - drupal_strlen($unique_suffix)) . $unique_suffix;
      } while ($this
        ->deltaExists($this->delta));
    }
  }
  return $this;
}