/**
* Initializes field values.
*
* @param \Drupal\Core\Entity\ContentEntityInterface $entity
* An entity object.
* @param array $values
* (optional) An associative array of initial field values keyed by field
* name. If none is provided default values will be applied.
* @param array $field_names
* (optional) An associative array of field names to be initialized. If none
* is provided all fields will be initialized.
*/
protected function initFieldValues(ContentEntityInterface $entity, array $values = [], array $field_names = [])
{
// Populate field values.
foreach ($entity as $name => $field) {
if (!$field_names || isset($field_names[$name])) {
if (isset($values[$name])) {
$entity->{$name} = $values[$name];
} elseif (!array_key_exists($name, $values)) {
$entity->get($name)->applyDefaultValue();
}
}
unset($values[$name]);
}
// Set any passed values for non-defined fields also.
foreach ($values as $name => $value) {
$entity->{$name} = $value;
}
// Make sure modules can alter field initial values.
$this->invokeHook('field_values_init', $entity);
}
/**
* Extracts translatable data from an entity.
*
* @param \Drupal\Core\Entity\ContentEntityInterface $entity
* The entity to get the translatable data from.
*
* @return array $data
* Translatable data.
*/
public function extractTranslatableData(ContentEntityInterface $entity)
{
// @todo Expand this list or find a better solution to exclude fields like
// content_translation_source.
$field_definitions = $entity->getFieldDefinitions();
$exclude_field_types = ['language'];
$translatable_fields = array_filter($field_definitions, function (FieldDefinitionInterface $field_definition) use($exclude_field_types) {
return $field_definition->isTranslatable() && !in_array($field_definition->getType(), $exclude_field_types);
});
$data = array();
foreach ($translatable_fields as $key => $field_definition) {
$field = $entity->get($key);
foreach ($field as $index => $field_item) {
$format = NULL;
$translatable_properties = 0;
/* @var FieldItemInterface $field_item */
foreach ($field_item->getProperties() as $property_key => $property) {
// Ignore computed values.
$property_definition = $property->getDataDefinition();
// Ignore values that are not primitives.
if (!$property instanceof PrimitiveInterface) {
continue;
}
$translate = TRUE;
// Ignore properties with limited allowed values or if they're not strings.
if ($property instanceof OptionsProviderInterface || !$property instanceof StringInterface) {
$translate = FALSE;
}
// All the labels are here, to make sure we don't have empty labels in
// the UI because of no data.
if ($translate == TRUE) {
$data[$key]['#label'] = $field_definition->getLabel();
if (count($field) > 1) {
// More than one item, add a label for the delta.
$data[$key][$index]['#label'] = t('Delta #@delta', array('@delta' => $index));
}
}
$data[$key][$index][$property_key] = array('#label' => $property_definition->getLabel(), '#text' => $property->getValue(), '#translate' => $translate);
$translatable_properties += (int) $translate;
if ($translate && $field_item->getFieldDefinition()->getFieldStorageDefinition()->getSetting('max_length') != 0) {
$data[$key][$index][$property_key]['#max_length'] = $field_item->getFieldDefinition()->getFieldStorageDefinition()->getSetting('max_length');
}
if ($property_definition->getDataType() == 'filter_format') {
$format = $property->getValue();
}
}
// Add the format to the translatable properties.
if (!empty($format)) {
foreach ($data[$key][$index] as $name => $value) {
if (is_array($value) && isset($value['#translate']) && $value['#translate'] == TRUE) {
$data[$key][$index][$name]['#format'] = $format;
}
}
}
// If there is only one translatable property, remove the label for it.
if ($translatable_properties <= 1) {
foreach (Element::children($data[$key][$index]) as $property_key) {
unset($data[$key][$index][$property_key]['#label']);
}
}
}
}
$embeddable_fields = $this->getEmbeddableFields($entity);
foreach ($embeddable_fields as $key => $field_definition) {
$field = $entity->get($key);
foreach ($field as $index => $field_item) {
/* @var FieldItemInterface $field_item */
foreach ($field_item->getProperties(TRUE) as $property_key => $property) {
// If the property is a content entity reference and it's value is
// defined, than we call this method again to get all the data.
if ($property instanceof EntityReference && $property->getValue() instanceof ContentEntityInterface) {
// All the labels are here, to make sure we don't have empty
// labels in the UI because of no data.
$data[$key]['#label'] = $field_definition->getLabel();
if (count($field) > 1) {
// More than one item, add a label for the delta.
$data[$key][$index]['#label'] = t('Delta #@delta', array('@delta' => $index));
}
$data[$key][$index][$property_key] = $this->extractTranslatableData($property->getValue());
}
}
}
}
return $data;
}
/**
* {@inheritdoc}
*/
public function getEntityReferenceTargetIds(ContentEntityInterface $entity, $field_name, $sort = FALSE) {
$target_ids = [];
if ($entity->hasField($field_name)) {
$field_values = $entity->get($field_name)->getValue();
foreach ($field_values as $field_value) {
$target_ids[] = $field_value['target_id'];
}
}
if ($sort) {
asort($target_ids);
}
return $target_ids;
}
/**
* @param string $correspondingFieldName
* Name of the field on the target entity which holds references back to the
* referer that need corresponding.
* @param $refererId
* Id of the referencing entity whose update has triggered this.
* @param $referencedEntity
* The referenced entity that needs its corresponding field updating.
*/
public function removeCorrespondingReference($correspondingFieldName, $refererId, ContentEntityInterface $referencedEntity)
{
$correspondingField = $referencedEntity->get($correspondingFieldName);
$currentReferences = $correspondingField->getValue();
$desiredReferences = $this->nested_array_diff([['target_id' => $refererId]], $currentReferences);
$correspondingField->setValue($desiredReferences);
$referencedEntity->save();
}