/**
* Create form elements to update field map.
*
* @return array
* @internal param array $form
* @internal param $scheduled_update_type
*
*/
protected function createFieldMapElements()
{
if ($this->entity->isNew()) {
return [];
}
$field_map_help = 'Select the destination fields for this update type.' . ' Not all field have to have destinations if you using them for other purposes.';
$elements = ['#type' => 'details', '#title' => 'destination fields', '#description' => $this->t($field_map_help), '#tree' => TRUE];
$source_fields = $this->getSourceFields($this->entity);
$field_map = $this->entity->getFieldMap();
foreach ($source_fields as $source_field_id => $source_field) {
$destination_fields_options = $this->getDestinationFieldsOptions($source_field);
$elements[$source_field_id] = ['#type' => 'select', '#title' => $source_field->label(), '#options' => ['' => $this->t("(Not mapped)")] + $destination_fields_options, '#default_value' => isset($field_map[$source_field_id]) ? $field_map[$source_field_id] : ''];
}
return $elements;
}
/**
* Transfer field values from update to entity to be updated.
*
* Because different fields may be on different bundles
* not all fields will be transferred to all entities.
*
* @param $update
* @param $entity_to_update
*/
protected function transferFieldValues(ScheduledUpdateInterface $update, ContentEntityInterface $entity_to_update) {
$field_map = $this->scheduled_update_type->getFieldMap();
foreach ($field_map as $from_field => $to_field) {
if ($to_field) {
if ($entity_to_update->hasField($to_field) && $update->hasField($from_field)) {
$new_value = $update->get($from_field)->getValue();
// @todo if $new_value is empty. Check to see if the field is required on the target?
// If it is require don't update value because this cause a fatal at least on base fields.
if (isset($new_value)) {
$entity_to_update->set($to_field, $new_value);
}
}
}
}
}
