public function FieldChanges::render in Track Field Changes 8

Renders the field.

Parameters

\Drupal\views\ResultRow $values: The values retrieved from a single row of a view's query result.

Return value

string|\Drupal\Component\Render\MarkupInterface The rendered output. If the output is safe it will be wrapped in an object that implements MarkupInterface. If it is empty or unsafe it will be a string.

Overrides FieldPluginBase::render

File

src/Plugin/views/field/FieldChanges.php, line 21

Class

FieldChanges

Field handler to provide field values.

Namespace

Drupal\track_field_changes\Plugin\views\field

Code

public function render(ResultRow $values) {
  $output = '';
  if ($this
    ->getValue($values, 'field_name') == 'log') {
    return '';
  }
  $value = $this
    ->getValue($values);
  $fields = json_decode($value, TRUE);
  if (!empty($fields)) {
    $output = [];
    foreach ($fields as $delta => $field) {
      if ($delta === 'target_type') {
        continue;
      }
      foreach ($field as $key => $value) {
        if ($key == 'target_id' && !empty($fields['target_type']) && is_numeric($value)) {
          $entity = \Drupal::entityTypeManager()
            ->getStorage($fields['target_type'])
            ->load($value);
          if ($entity) {
            $output[] = $entity
              ->label();
            continue;
          }
        }
        $output[] = Html::escape($value);
      }
    }
    $output = implode('  ', $output);
  }
  return $output;
}