/**
* Custom callback to get the URL alias from an article.
*
* @param DataInterpreterInterface $interpreter
* The data interpreter for the current article entity.
*
* @return string
* The URL alias for the article.
*/
public function getUrlAlias(DataInterpreterInterface $interpreter)
{
/** @var \EntityDrupalWrapper $wrapper */
$wrapper = $interpreter->getWrapper();
$path = sprintf('node/%d', $wrapper->getIdentifier());
return drupal_get_path_alias($path);
}
/**
* {@inheritdoc}
*/
protected static function checkPropertyAccess(ResourceFieldInterface $resource_field, $op, DataInterpreterInterface $interpreter)
{
$term = $interpreter->getWrapper()->value();
if ($resource_field->getProperty() == 'name' && empty($term->tid) && $op == 'edit') {
return TRUE;
}
return parent::checkPropertyAccess($resource_field, $op, $interpreter);
}
/**
* Process callback to generate the image styles for the current file.
*
* @param DataInterpreterInterface $interpreter
* The data interpreter for the current article entity.
* @param string[] $image_styles
* Array of image style names.
*
* @return array
* A list of URLs for this images' image styles.
*/
public function generateStyleUris(DataInterpreterInterface $interpreter, array $image_styles)
{
// Call image_style_url with the retrieved $value for each $image_style.
$uri = $interpreter->getWrapper()->value()->uri;
return array_map(function ($image_style) use($uri) {
return url(image_style_url($image_style, $uri), array('absolute' => $this->isAbsolute));
}, $image_styles);
}
/**
* Returns the URL to the endpoint result.
*
* @param DataInterpreterInterface $interpreter
* The plugin's data interpreter.
*
* @return string
* The RESTful endpoint URL.
*/
public function getSelf(DataInterpreterInterface $interpreter)
{
if ($menu_item = $interpreter->getWrapper()->get('menuItem')) {
$url = variable_get('restful_hook_menu_base_path', 'api') . '/' . $menu_item;
return url($url, array('absolute' => TRUE));
}
$base_path = variable_get('restful_hook_menu_base_path', 'api');
return url($base_path . '/v' . $interpreter->getWrapper()->get('majorVersion') . '.' . $interpreter->getWrapper()->get('minorVersion') . '/' . $interpreter->getWrapper()->get('resource'), array('absolute' => TRUE));
}
/**
* An access callback that returns TRUE if title is "access". Otherwise FALSE.
*
* @param string $op
* The operation that access should be checked for. Can be "view" or "edit".
* Defaults to "edit".
* @param ResourceFieldInterface $resource_field
* The resource field to check access upon.
* @param DataInterpreterInterface $interpreter
* The data interpreter.
*
* @return string
* "Allow" or "Deny" if user has access to the property.
*/
public static function publicFieldAccessFalse($op, ResourceFieldInterface $resource_field, DataInterpreterInterface $interpreter)
{
return $interpreter->getWrapper()->label() == 'access' ? \Drupal\restful\Plugin\resource\Field\ResourceFieldBase::ACCESS_ALLOW : \Drupal\restful\Plugin\resource\Field\ResourceFieldBase::ACCESS_DENY;
}
/**
* Get the wrapper for the property associated to the current field.
*
* @param DataInterpreterInterface $interpreter
* The data source.
*
* @return \EntityMetadataWrapper
* Either a \EntityStructureWrapper or a \EntityListWrapper.
*
* @throws ServerConfigurationException
*/
protected function propertyWrapper(DataInterpreterInterface $interpreter)
{
// This is the first method that gets called for all fields after loading
// the entity. We'll use that opportunity to set the actual bundle of the
// field.
$this->setBundle($interpreter->getWrapper()->getBundle());
// Exposing an entity field.
$wrapper = $interpreter->getWrapper();
// For entity fields the DataInterpreter needs to contain an EMW.
if (!$wrapper instanceof \EntityDrupalWrapper) {
throw new ServerConfigurationException('Cannot get a value without an entity metadata wrapper data source.');
}
$property = $this->getProperty();
try {
return $property && !$this->isWrapperMethodOnEntity() ? $wrapper->{$property} : $wrapper;
} catch (\EntityMetadataWrapperException $e) {
throw new UnprocessableEntityException(sprintf('The property %s could not be found in %s:%s.', $property, $wrapper->type(), $wrapper->getBundle()));
}
}
/**
* Get the "self" url.
*
* @param DataInterpreterInterface $interpreter
* The wrapped entity.
*
* @return string
* The self URL.
*/
public function getEntitySelf(DataInterpreterInterface $interpreter)
{
return $this->versionedUrl($interpreter->getWrapper()->getIdentifier());
}
