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- <?php
- /**
- * @file
- * Contains entity property callback functions for the 'cer' struct exposed
- * to Entity API.
- */
- /**
- * Unpacks the cer_left and cer_right values into a CerFieldChain object.
- */
- function cer_unpack_field_chain($data, array $options, $property, $entity_type, array $info) {
- return CerFieldChain::unpack($data);
- }
- /**
- * Creates a parent struct for the lineage, depth, owner, and original properties.
- * All that these other callbacks really need is the entity type and object, so
- * that's what this returns.
- */
- function cer_get_cer_struct($entity, array $options, $property, $entity_type, array $info) {
- return array( $entity_type, $entity );
- }
- /**
- * Gets the lineage of the entity as a string, in the format entity_type:bundle:%
- */
- function cer_get_entity_lineage(array $data, array $options, $property, $data_type, array $info) {
- list (, , $bundle) = entity_extract_IDs($data[0], $data[1]);
- return $data[0] . ":{$bundle}:";
- }
- /**
- * Gets the entity depth as an integer. cer_entity_property_info_alter() overrides this
- * callback for field collections, and for all other entity types it's 0 (top level).
- */
- function cer_get_entity_depth(array $data, array $options, $property, $data_type, array $info) {
- return 0;
- }
- /**
- * Gets the ultimate owner of the entity as an EntityDrupalWrapper. cer_entity_property_info_alter()
- * overrides this callback for field collections, and for all other entity types the entity
- * owns itself.
- */
- function cer_get_entity_owner(array $data, array $options, $property, $data_type, array $info) {
- return new EntityDrupalWrapper($data[0], $data[1]);
- }
- /**
- * Gets the original entity, before update. If no update has taken place, the current
- * entity is returned.
- */
- function cer_get_entity_original(array $data, array $options, $property, $data_type, array $info) {
- return new EntityDrupalWrapper($data[0], (isset($data[1]->original) ? $data[1]->original : $data[1]));
- }
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