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<?php
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/**
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* Class for field_collection_item entities.
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*/
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class FieldCollectionItemEntity extends Entity {
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/**
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* Field Collection field info.
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*
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* @var array
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*/
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protected $fieldInfo;
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/**
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* The host entity object.
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*
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* @var object
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*/
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protected $hostEntity;
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/**
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* The host entity ID.
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*
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* @var integer
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*/
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protected $hostEntityId;
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/**
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* The host entity revision ID if this is not the default revision.
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*
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* @var integer
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*/
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protected $hostEntityRevisionId;
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/**
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* The host entity type.
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*
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* @var string
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*/
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protected $hostEntityType;
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/**
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* The language under which the field collection item is stored.
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*
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* @var string
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*/
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protected $langcode = LANGUAGE_NONE;
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/**
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* Entity ID.
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*
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* @var integer
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*/
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public $item_id;
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/**
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* Field Collection revision ID.
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*
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* @var integer
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*/
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public $revision_id;
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/**
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* The name of the field-collection field this item is associated with.
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*
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* @var string
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*/
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public $field_name;
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/**
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* Whether this revision is the default revision.
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*
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* @var bool
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*/
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public $default_revision = TRUE;
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/**
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* Whether the field collection item is archived, i.e. not in use.
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*
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* @see FieldCollectionItemEntity::isInUse()
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* @var bool
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*/
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public $archived = FALSE;
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/**
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* Constructs the entity object.
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*/
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public function __construct(array $values = array(), $entityType = NULL) {
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parent::__construct($values, 'field_collection_item');
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// Workaround issues http://drupal.org/node/1084268 and
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// http://drupal.org/node/1264440:
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// Check if the required property is set before checking for the field's
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// type. If the property is not set, we are hitting a PDO or a core's bug.
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// FIXME: Remove when #1264440 is fixed and the required PHP version is
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// properly identified and documented in the module documentation.
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if (isset($this->field_name)) {
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// Ok, we have the field name property, we can proceed and check the field's type
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$field_info = $this->fieldInfo();
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if (!$field_info || $field_info['type'] != 'field_collection') {
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throw new Exception("Invalid field name given: {$this->field_name} is not a Field Collection field.");
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}
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}
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}
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/**
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* Provides info about the field on the host entity, which embeds this
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* field collection item.
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*/
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public function fieldInfo() {
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return field_info_field($this->field_name);
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}
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/**
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* Provides info of the field instance containing the reference to this
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* field collection item.
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*/
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public function instanceInfo() {
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if ($this->fetchHostDetails()) {
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return field_info_instance($this->hostEntityType(), $this->field_name, $this->hostEntityBundle());
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}
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}
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/**
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* Returns the field instance label translated to interface language.
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*/
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public function translatedInstanceLabel($langcode = NULL) {
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if ($info = $this->instanceInfo()) {
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if (module_exists('i18n_field')) {
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return i18n_string("field:{$this->field_name}:{$info['bundle']}:label", $info['label'], array('langcode' => $langcode, 'sanitize' => FALSE));
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}
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return $info['label'];
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}
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}
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/**
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* Specifies the default label, which is picked up by label() by default.
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*/
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public function defaultLabel() {
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if ($this->fetchHostDetails()) {
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$field = $this->fieldInfo();
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$label = $this->translatedInstanceLabel();
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$host = $this->hostEntity();
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if ($new_label = module_invoke_all('field_collection_item_label', $this, $host, $field, $label)) {
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return array_pop($new_label);
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}
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if ($field['cardinality'] == 1) {
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return $label;
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}
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if ($this->item_id) {
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return t('!instance_label @count', array('!instance_label' => $label, '@count' => $this->delta() + 1));
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}
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return t('New !instance_label', array('!instance_label' => $label));
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}
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return t('Unconnected field collection item');
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}
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/**
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* Returns the path used to view the entity.
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*/
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public function path() {
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if ($this->item_id) {
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return field_collection_field_get_path($this->fieldInfo()) . '/' . $this->item_id;
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}
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}
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/**
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* Returns the URI as returned by entity_uri().
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*/
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public function defaultUri() {
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return array(
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'path' => $this->path(),
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);
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}
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/**
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* Sets the host entity. Only possible during creation of a item.
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*
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* @param $create_link
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* (optional) Whether a field-item linking the host entity to the field
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* collection item should be created.
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*/
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public function setHostEntity($entity_type, $entity, $langcode = LANGUAGE_NONE, $create_link = TRUE) {
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if (!empty($this->is_new)) {
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$this->hostEntityType = $entity_type;
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$this->hostEntity = $entity;
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$this->langcode = $langcode;
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list($this->hostEntityId, $this->hostEntityRevisionId) = entity_extract_ids($this->hostEntityType, $this->hostEntity);
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// If the host entity is not saved yet, set the id to FALSE. So
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// fetchHostDetails() does not try to load the host entity details.
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// Checking value of $this->hostEntityId.
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if (!isset($this->hostEntityId)) {
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$this->hostEntityId = FALSE;
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}
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// We are create a new field collection for a non-default entity, thus
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// set archived to TRUE.
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if (!entity_revision_is_default($entity_type, $entity)) {
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$this->hostEntityId = FALSE;
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$this->archived = TRUE;
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}
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if ($create_link) {
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$entity->{$this->field_name}[$this->langcode][] = array('entity' => $this);
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}
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}
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else {
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throw new Exception('The host entity may be set only during creation of a field collection item.');
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}
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}
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/**
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* Updates the wrapped host entity object.
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*
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* @param object $entity
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* Host entity.
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* @param string $host_entity_type
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* The entity type of the entity the field collection is attached to.
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*/
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public function updateHostEntity($entity, $host_entity_type = NULL) {
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$this->fetchHostDetails($entity);
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// If it isn't possible to retrieve hostEntityType due to the fact that it's
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// not saved in the DB yet then fill in info about the hostEntity manually.
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// This happens when creating a new revision of a field collection entity
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// and it needs to relate to the new revision of the host entity.
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if (!$this->hostEntityType || isset($entity->tid)) {
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$this->hostEntityType = $host_entity_type;
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$this->hostEntity = $entity;
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list($this->hostEntityId, $this->hostEntityRevisionId) = entity_extract_ids($this->hostEntityType, $this->hostEntity);
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}
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list($recieved_id) = entity_extract_ids($this->hostEntityType, $entity);
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if (!empty($this->hostEntityId) && $this->isInUse()) {
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if (is_array($this->hostEntityId)) {
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$current_id = in_array($recieved_id, $this->hostEntityId)
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? $recieved_id
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: FALSE;
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}
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else {
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$current_id = $this->hostEntityId;
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}
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}
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else {
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$current_host = entity_revision_load($this->hostEntityType, $this->hostEntityRevisionId);
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list($current_id) = $current_host ? entity_extract_ids($this->hostEntityType, $current_host) : array($recieved_id);
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}
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if ($current_id == $recieved_id) {
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$this->hostEntity = $entity;
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$delta = $this->delta();
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if (isset($entity->{$this->field_name}[$this->langcode()][$delta]['entity'])) {
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$entity->{$this->field_name}[$this->langcode()][$delta]['entity'] = $this;
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}
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}
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else {
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throw new Exception('The host entity cannot be changed.');
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}
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}
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/**
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* Returns the host entity, which embeds this field collection item.
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*/
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public function hostEntity() {
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if ($this->fetchHostDetails()) {
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if (!isset($this->hostEntity) && $this->isInUse()) {
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$this->hostEntity = entity_load_single($this->hostEntityType, $this->hostEntityId);
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}
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elseif (!isset($this->hostEntity) && $this->hostEntityRevisionId) {
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$this->hostEntity = entity_revision_load($this->hostEntityType, $this->hostEntityRevisionId);
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}
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return $this->hostEntity;
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}
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}
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/**
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* Returns the entity type of the host entity, which embeds this
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* field collection item.
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*/
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public function hostEntityType() {
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if ($this->fetchHostDetails()) {
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return $this->hostEntityType;
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}
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}
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/**
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* Returns the id of the host entity, which embeds this field collection item.
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*/
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public function hostEntityId() {
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if ($this->fetchHostDetails()) {
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if (!$this->hostEntityId && $this->hostEntityRevisionId) {
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$this->hostEntityId = entity_id($this->hostEntityType, $this->hostEntity());
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}
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return $this->hostEntityId;
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}
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}
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300
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/**
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* Returns the bundle of the host entity, which embeds this field collection
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* item.
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*/
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public function hostEntityBundle() {
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if ($entity = $this->hostEntity()) {
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list($id, $rev_id, $bundle) = entity_extract_ids($this->hostEntityType, $entity);
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return $bundle;
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}
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}
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311
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/**
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312
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* Collects info about the field collection's host.
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*
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* @param $hostEntity
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* The host entity object. (optional)
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*/
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protected function fetchHostDetails($hostEntity = NULL) {
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if (!isset($this->hostEntityId) || (!$this->hostEntityId && $this->hostEntityRevisionId)) {
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if ($this->item_id) {
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// For saved field collections, query the field data to determine the
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// right host entity.
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$query = new EntityFieldQuery();
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$field_info = $this->fieldInfo();
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$query->fieldCondition($field_info, 'revision_id', $this->revision_id);
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if ($hostEntity) {
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$entity_type = key($field_info['bundles']);
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$bundle = current($field_info['bundles'][$entity_type]);
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$entity_info = entity_get_info($entity_type);
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$key = $entity_info['entity keys']['id'];
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$query->entityCondition('entity_type', $entity_type);
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$query->entityCondition('entity_id', $hostEntity->{$key});
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$query->entityCondition('bundle', $bundle);
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// Only filter by language if this entity type has a language key that
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// has a corresponding field in its base table.
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if (!empty($entity_info['entity keys']['language']) && !empty($entity_info['schema_fields_sql']['base table']) && in_array($entity_info['entity keys']['language'], $entity_info['schema_fields_sql']['base table'], TRUE)) {
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336
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$query->propertyCondition($entity_info['entity keys']['language'], $hostEntity->{$entity_info['entity keys']['language']});
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}
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338
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}
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339
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$query->addTag('DANGEROUS_ACCESS_CHECK_OPT_OUT');
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340
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if (!$this->isInUse()) {
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341
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$query->age(FIELD_LOAD_REVISION);
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}
|
343
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$result = $query->execute();
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344
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if ($result) {
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345
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$this->hostEntityType = key($result);
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$data = current($result);
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347
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|
348
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if ($this->isInUse()) {
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349
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$data_array_keys = array_keys($data);
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350
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$this->hostEntityId = $data ? end($data_array_keys) : FALSE;
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351
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$this->hostEntityRevisionId = FALSE;
|
352
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}
|
353
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// If we are querying for revisions, we get the revision ID.
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354
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else {
|
355
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$data_array_keys = array_keys($data);
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356
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$this->hostEntityId = FALSE;
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357
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$this->hostEntityRevisionId = $data ? end($data_array_keys) : FALSE;
|
358
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}
|
359
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}
|
360
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else {
|
361
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// No host entity available yet.
|
362
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$this->hostEntityId = FALSE;
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363
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}
|
364
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}
|
365
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else {
|
366
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// No host entity available yet.
|
367
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$this->hostEntityId = FALSE;
|
368
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}
|
369
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}
|
370
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return !empty($this->hostEntityId) || !empty($this->hostEntity) || !empty($this->hostEntityRevisionId);
|
371
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}
|
372
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|
373
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/**
|
374
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* Determines the $delta of the reference pointing to this field collection
|
375
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* item.
|
376
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*/
|
377
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public function delta() {
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378
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if (($entity = $this->hostEntity()) && isset($entity->{$this->field_name})) {
|
379
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foreach ($entity->{$this->field_name} as $langcode => &$data) {
|
380
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if (!empty($data)) {
|
381
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foreach ($data as $delta => $item) {
|
382
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if (isset($item['value']) && $item['value'] == $this->item_id) {
|
383
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$this->langcode = $langcode;
|
384
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return $delta;
|
385
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}
|
386
|
|
387
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if (isset($item['entity']) && $item['entity'] === $this) {
|
388
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$this->langcode = $langcode;
|
389
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return $delta;
|
390
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}
|
391
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}
|
392
|
}
|
393
|
}
|
394
|
// If we don't find the delta in the current values (cause the item
|
395
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// is being deleted, for example), we search the delta in the originalcontent.
|
396
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if (!empty($entity->original)) {
|
397
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foreach ($entity->original->{$this->field_name} as $langcode => &$data) {
|
398
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if (!empty($data)) {
|
399
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foreach ($data as $delta => $item) {
|
400
|
if (isset($item['value']) && $item['value'] == $this->item_id) {
|
401
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$this->langcode = $langcode;
|
402
|
return $delta;
|
403
|
}
|
404
|
|
405
|
if (isset($item['entity']) && $item['entity'] === $this) {
|
406
|
$this->langcode = $langcode;
|
407
|
return $delta;
|
408
|
}
|
409
|
}
|
410
|
}
|
411
|
}
|
412
|
}
|
413
|
}
|
414
|
}
|
415
|
|
416
|
/**
|
417
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* Determines the language code under which the item is stored.
|
418
|
*/
|
419
|
public function langcode() {
|
420
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if (empty($this->langcode) || $this->delta() === NULL) {
|
421
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$this->langcode = field_collection_entity_language('field_collection_item', $this);
|
422
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}
|
423
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|
424
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if (empty($this->langcode) || ($this->langcode != LANGUAGE_NONE && (!module_exists('entity_translation') || !entity_translation_enabled('field_collection_item')))) {
|
425
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$this->langcode = LANGUAGE_NONE;
|
426
|
}
|
427
|
|
428
|
return $this->langcode;
|
429
|
}
|
430
|
|
431
|
/**
|
432
|
* Determines whether this field collection item revision is in use.
|
433
|
*
|
434
|
* Field Collection items may be contained in from non-default host entity
|
435
|
* revisions. If the field collection item does not appear in the default
|
436
|
* host entity revision, the item is actually not used by default and so
|
437
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* marked as 'archived'.
|
438
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* If the field collection item appears in the default revision of the host
|
439
|
* entity, the default revision of the field collection item is in use there
|
440
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* and the collection is not marked as archived.
|
441
|
*/
|
442
|
public function isInUse() {
|
443
|
return $this->default_revision && !$this->archived;
|
444
|
}
|
445
|
|
446
|
/**
|
447
|
* Save the field collection item.
|
448
|
*
|
449
|
* By default, always save the host entity, so modules are able to react
|
450
|
* upon changes to the content of the host and any 'last updated' dates of
|
451
|
* entities get updated.
|
452
|
*
|
453
|
* For creating an item a host entity has to be specified via setHostEntity()
|
454
|
* before this function is invoked. For the link between the entities to be
|
455
|
* fully established, the host entity object has to be updated to include a
|
456
|
* reference on this field collection item during saving. So do not skip
|
457
|
* saving the host for creating items.
|
458
|
*
|
459
|
* @param $skip_host_save
|
460
|
* (internal) If TRUE is passed, the host entity is not saved automatically
|
461
|
* and therefore no link is created between the host and the item or
|
462
|
* revision updates might be skipped. Use with care.
|
463
|
*/
|
464
|
public function save($skip_host_save = FALSE) {
|
465
|
// Make sure we have a host entity during creation.
|
466
|
if (!empty($this->is_new) && !(isset($this->hostEntityId) || isset($this->hostEntity) || isset($this->hostEntityRevisionId))) {
|
467
|
throw new Exception('Unable to create a field collection item without a given host entity.');
|
468
|
}
|
469
|
|
470
|
// Copy the values of translatable fields for a new field collection item.
|
471
|
if (!empty($this->is_new) && field_collection_item_is_translatable() && $this->langcode() == LANGUAGE_NONE) {
|
472
|
$this->copyTranslations();
|
473
|
}
|
474
|
|
475
|
// Only save directly if we are told to skip saving the host entity. Else,
|
476
|
// we always save via the host as saving the host might trigger saving
|
477
|
// field collection items anyway (e.g. if a new revision is created).
|
478
|
if ($skip_host_save) {
|
479
|
return entity_get_controller($this->entityType)->save($this);
|
480
|
}
|
481
|
|
482
|
$host_entity = $this->hostEntity();
|
483
|
if (!$host_entity) {
|
484
|
throw new Exception('Unable to save a field collection item without a valid reference to a host entity.');
|
485
|
}
|
486
|
// If this is creating a new revision, also do so for the host entity.
|
487
|
if (!empty($this->revision) || !empty($this->is_new_revision)) {
|
488
|
$host_entity->revision = TRUE;
|
489
|
if (!empty($this->default_revision)) {
|
490
|
entity_revision_set_default($this->hostEntityType, $host_entity);
|
491
|
}
|
492
|
}
|
493
|
// Set the host entity reference, so the item will be saved with the host.
|
494
|
// @see field_collection_field_presave()
|
495
|
$delta = $this->delta();
|
496
|
if (isset($delta)) {
|
497
|
$host_entity->{$this->field_name}[$this->langcode()][$delta] = array('entity' => $this);
|
498
|
}
|
499
|
else {
|
500
|
$host_entity->{$this->field_name}[$this->langcode()][] = array('entity' => $this);
|
501
|
}
|
502
|
|
503
|
return entity_save($this->hostEntityType, $host_entity);
|
504
|
}
|
505
|
|
506
|
/**
|
507
|
* Deletes the field collection item and the reference in the host entity.
|
508
|
*/
|
509
|
public function delete($skip_host_save = FALSE) {
|
510
|
parent::delete();
|
511
|
if (!$skip_host_save) {
|
512
|
$this->deleteHostEntityReference();
|
513
|
}
|
514
|
}
|
515
|
|
516
|
/**
|
517
|
* Copies text to all languages the collection item has a translation for.
|
518
|
*
|
519
|
* @param $source_language
|
520
|
* Language code to copy the text from.
|
521
|
*/
|
522
|
public function copyTranslations($source_language = NULL) {
|
523
|
// Get a handler for Entity Translation if there is one.
|
524
|
$host_et_handler = NULL;
|
525
|
if (module_exists('entity_translation')) {
|
526
|
$host_et_handler = entity_translation_get_handler($this->hostEntityType(), $this->hostEntity());
|
527
|
}
|
528
|
if (is_null($host_et_handler)) {
|
529
|
return;
|
530
|
}
|
531
|
|
532
|
$host_languages = array_keys($host_et_handler->getTranslations()->data);
|
533
|
if (empty($host_languages)) {
|
534
|
$host_languages = array(entity_language($this->hostEntityType(), $this->hostEntity()));
|
535
|
}
|
536
|
$source_language = isset($source_language) ? $source_language : $host_et_handler->getLanguage();
|
537
|
$target_languages = array_diff($host_languages, array($source_language));
|
538
|
$fields_instances = array_keys(field_info_instances('field_collection_item', $this->field_name));
|
539
|
$fields = field_info_fields();
|
540
|
|
541
|
foreach ($fields_instances as $translatable_field) {
|
542
|
if ($fields[$translatable_field]['translatable'] == 1) {
|
543
|
foreach ($target_languages as $langcode) {
|
544
|
// Source (translatable_field) is set, therefore continue
|
545
|
// processing.
|
546
|
if (isset($this->{$translatable_field}[$source_language])
|
547
|
&& !isset($this->{$translatable_field}[$langcode])) {
|
548
|
// Destination (translatable_field) is not set, therefore safe to
|
549
|
// copy the translation.
|
550
|
$this->{$translatable_field}[$langcode] = $this->{$translatable_field}[$source_language];
|
551
|
}
|
552
|
}
|
553
|
if ($source_language == LANGUAGE_NONE && count($this->{$translatable_field}) > 1) {
|
554
|
$this->{$translatable_field}[$source_language] = NULL;
|
555
|
}
|
556
|
}
|
557
|
}
|
558
|
}
|
559
|
|
560
|
/**
|
561
|
* Deletes the host entity's reference of the field collection item.
|
562
|
*/
|
563
|
protected function deleteHostEntityReference() {
|
564
|
$delta = $this->delta();
|
565
|
if ($this->item_id && isset($delta)) {
|
566
|
unset($this->hostEntity->{$this->field_name}[$this->langcode()][$delta]);
|
567
|
// Do not save when the host entity is being deleted. See
|
568
|
// field_collection_field_delete().
|
569
|
if (empty($this->hostEntity->field_collection_deleting)) {
|
570
|
entity_save($this->hostEntityType(), $this->hostEntity());
|
571
|
}
|
572
|
}
|
573
|
}
|
574
|
|
575
|
/**
|
576
|
* Intelligently delete a field collection item revision.
|
577
|
*
|
578
|
* If a host entity is revisioned with its field collection items, deleting
|
579
|
* a field collection item on the default revision of the host should not
|
580
|
* delete the collection item from archived revisions too. Instead, we delete
|
581
|
* the current default revision and archive the field collection.
|
582
|
*/
|
583
|
public function deleteRevision($skip_host_update = FALSE) {
|
584
|
if (!$this->revision_id) {
|
585
|
return;
|
586
|
}
|
587
|
|
588
|
if (!$skip_host_update) {
|
589
|
// Just remove the item from the host, which cares about deleting the
|
590
|
// item (depending on whether the update creates a new revision).
|
591
|
$this->deleteHostEntityReference();
|
592
|
}
|
593
|
|
594
|
if (!$this->isDefaultRevision()) {
|
595
|
entity_revision_delete('field_collection_item', $this->revision_id);
|
596
|
}
|
597
|
// If deleting the default revision, take care!
|
598
|
else {
|
599
|
$row = db_select('field_collection_item_revision', 'r')
|
600
|
->fields('r')
|
601
|
->condition('item_id', $this->item_id)
|
602
|
->condition('revision_id', $this->revision_id, '<>')
|
603
|
->execute()
|
604
|
->fetchAssoc();
|
605
|
|
606
|
if ($row) {
|
607
|
// Make the other revision the default revision and archive the item.
|
608
|
db_update('field_collection_item')
|
609
|
->fields(array('archived' => 1, 'revision_id' => $row['revision_id']))
|
610
|
->condition('item_id', $this->item_id)
|
611
|
->execute();
|
612
|
|
613
|
// Let other modules know about the archived item.
|
614
|
entity_get_controller('field_collection_item')->invoke('archive', $this);
|
615
|
|
616
|
entity_get_controller('field_collection_item')->resetCache(array($this->item_id));
|
617
|
entity_revision_delete('field_collection_item', $this->revision_id);
|
618
|
}
|
619
|
else {
|
620
|
// Delete if there is no existing revision or translation to be saved.
|
621
|
$this->delete($skip_host_update);
|
622
|
}
|
623
|
}
|
624
|
}
|
625
|
|
626
|
/**
|
627
|
* Export the field collection item.
|
628
|
*
|
629
|
* Since field collection entities are not directly exportable (i.e., do not
|
630
|
* have 'exportable' set to TRUE in hook_entity_info()) and since Features
|
631
|
* calls this method when exporting the field collection as a field attached
|
632
|
* to another entity, we return the export in the format expected by
|
633
|
* Features, rather than in the normal Entity::export() format.
|
634
|
*/
|
635
|
public function export($prefix = '') {
|
636
|
// Based on code in EntityDefaultFeaturesController::export_render().
|
637
|
$export = "entity_import('" . $this->entityType() . "', '";
|
638
|
$export .= addcslashes(parent::export(), '\\\'');
|
639
|
$export .= "')";
|
640
|
return $export;
|
641
|
}
|
642
|
|
643
|
/**
|
644
|
* Generate an array for rendering the field collection item.
|
645
|
*/
|
646
|
public function view($view_mode = 'full', $langcode = NULL, $page = NULL) {
|
647
|
// Allow modules to change the view mode.
|
648
|
$view_mode = key(entity_view_mode_prepare($this->entityType, array($this->item_id => $this), $view_mode, $langcode));
|
649
|
return parent::view($view_mode, $langcode, $page);
|
650
|
}
|
651
|
|
652
|
/**
|
653
|
* Magic method to only serialize what's necessary.
|
654
|
*/
|
655
|
public function __sleep() {
|
656
|
$vars = get_object_vars($this);
|
657
|
unset($vars['entityInfo'], $vars['idKey'], $vars['nameKey'], $vars['statusKey'], $vars['fieldInfo']);
|
658
|
// Also do not serialize the host entity, but only if it has already an id.
|
659
|
if ($this->hostEntity && ($this->hostEntityId || $this->hostEntityRevisionId)) {
|
660
|
unset($vars['hostEntity']);
|
661
|
}
|
662
|
|
663
|
// Also key the returned array with the variable names so the method may
|
664
|
// be easily overridden and customized.
|
665
|
return drupal_map_assoc(array_keys($vars));
|
666
|
}
|
667
|
|
668
|
}
|