protected function ResourceFieldEntity::formatterValue in RESTful 7.2

Get value from a field rendered by Drupal field API's formatter.

Parameters

\EntityMetadataWrapper $property_wrapper: The property wrapper. Either \EntityDrupalWrapper or \EntityListWrapper.

\EntityDrupalWrapper $wrapper: The entity wrapper.

Return value

mixed A single or multiple values.

Throws

\Drupal\restful\Exception\ServerConfigurationException

1 call to ResourceFieldEntity::formatterValue()

ResourceFieldEntity::singleValue in src/Plugin/resource/Field/ResourceFieldEntity.php

Returns the value for the current single field.

File

src/Plugin/resource/Field/ResourceFieldEntity.php, line 500

Contains \Drupal\restful\Plugin\resource\Field\ResourceFieldEntity

Class

ResourceFieldEntity

Class ResourceFieldEntity.

Namespace

Drupal\restful\Plugin\resource\Field

Code

protected function formatterValue(\EntityMetadataWrapper $property_wrapper, \EntityDrupalWrapper $wrapper) {
  $value = NULL;
  if (!ResourceFieldEntity::propertyIsField($this
    ->getProperty())) {

    // Property is not a field.
    throw new ServerConfigurationException(format_string('@property is not a configurable field, so it cannot be processed using field API formatter', array(
      '@property' => $this
        ->getProperty(),
    )));
  }

  // Get values from the formatter.
  $output = field_view_field($this
    ->getEntityType(), $wrapper
    ->value(), $this
    ->getProperty(), $this
    ->getFormatter());

  // Unset the theme, as we just want to get the value from the formatter,
  // without the wrapping HTML.
  unset($output['#theme']);
  if ($property_wrapper instanceof \EntityListWrapper) {

    // Multiple values.
    foreach (element_children($output) as $delta) {
      $value[] = drupal_render($output[$delta]);
    }
  }
  else {

    // Single value.
    $value = drupal_render($output);
  }
  return $value;
}