72 lines
2.5 KiB
PHP
72 lines
2.5 KiB
PHP
<?php
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/**
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* @file
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* Contains entity property callback functions for the 'cer' struct exposed
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* to Entity API on field collections.
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*
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* @see cer_entity_property_info_alter().
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*/
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/**
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* Gets a field collection's lineage as a string, e.g.
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* node:page:field_my_collection::field_collection_item:field_my_collection:%
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*/
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function cer_get_field_collection_lineage(array $data, array $options, $property, $data_type, array $info) {
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return implode('::', $info['raw getter callback']($data, $options, $property, $data_type, $info));
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}
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/**
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* Gets a field collection's lineage as an array.
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*/
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function cer_get_field_collection_lineage_array(array $data, array $options, $property, $data_type, array $info) {
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$collection = $data[1];
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// If this is the innermost entity, $options['lineage'] will be empty.
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if (! isset($options['lineage'])) {
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$options['lineage'][] = "field_collection_item:{$collection->field_name}:";
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}
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$data[0] = $collection->hostEntityType();
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$data[1] = $collection->hostEntity();
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list (, , $host_bundle) = entity_extract_IDs($data[0], $data[1]);
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array_unshift($options['lineage'], $data[0] . ":{$host_bundle}:{$collection->field_name}");
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// If this field collection is hosted in another field collection, recurse
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// upward. Otherwise, we're done; return the lineage array.
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if ($data[0] == 'field_collection_item') {
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return cer_get_field_collection_lineage_array($data, $options, $property, $data_type, $info);
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}
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else {
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return $options['lineage'];
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}
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}
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/**
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* Gets the zero-based depth of a field collection.
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*/
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function cer_get_field_collection_depth(array $data, array $options, $property, $data_type, array $info) {
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$lineage = cer_get_field_collection_lineage_array($data, $options, $property, $data_type, $info);
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return (sizeof($lineage) - 1);
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}
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/**
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* Gets the ultimate owner of a field collection -- that is, the top-level entity
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* under which it's embedded. This could be any kind of entity that's not a field
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* collection item.
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*/
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function cer_get_field_collection_owner(array $data, array $options, $property, $data_type, array $info) {
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// If the entity is a field collection item, recurse upward. Otherwise,
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// return the wrapped entity.
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if ($data[0] == 'field_collection_item') {
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$data[0] = $data[1]->hostEntityType();
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$data[1] = $data[1]->hostEntity();
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$self = __FUNCTION__;
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return $self($data, $options, $property, $data_type, $info);
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}
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else {
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return new EntityDrupalWrapper($data[0], $data[1]);
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}
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}
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