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<?php
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/**
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* @file
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* FeedsTermProcessor class.
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*/
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/**
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* Feeds processor plugin. Create taxonomy terms from feed items.
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*/
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class FeedsTermProcessor extends FeedsProcessor {
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/**
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* Define entity type.
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*/
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public function entityType() {
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return 'taxonomy_term';
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}
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/**
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* Implements parent::entityInfo().
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*/
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protected function entityInfo() {
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$info = parent::entityInfo();
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$info['label plural'] = t('Terms');
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$info['bundle name'] = t('Vocabulary');
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return $info;
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}
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/**
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* Creates a new term in memory and returns it.
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*/
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protected function newEntity(FeedsSource $source) {
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$vocabulary = $this->vocabulary();
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$term = new stdClass();
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$term->vid = $vocabulary->vid;
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$term->vocabulary_machine_name = $vocabulary->machine_name;
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$term->format = isset($this->config['input_format']) ? $this->config['input_format'] : filter_fallback_format();
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return $term;
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}
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/**
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* Validates a term.
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*/
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protected function entityValidate($term) {
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if (drupal_strlen($term->name) == 0) {
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throw new FeedsValidationException(t('Term name missing.'));
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}
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}
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/**
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* Saves a term.
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*
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* We de-array parent fields with only one item.
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* This stops leftandright module from freaking out.
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*/
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protected function entitySave($term) {
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if (isset($term->parent)) {
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if (is_array($term->parent) && count($term->parent) == 1) {
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$term->parent = reset($term->parent);
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}
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if (isset($term->tid) && ($term->parent == $term->tid || (is_array($term->parent) && in_array($term->tid, $term->parent)))) {
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throw new FeedsValidationException(t("A term can't be its own child. GUID:@guid", array('@guid' => $term->feeds_item->guid)));
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}
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}
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taxonomy_term_save($term);
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}
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/**
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* Deletes a series of terms.
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*/
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protected function entityDeleteMultiple($tids) {
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foreach ($tids as $tid) {
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taxonomy_term_delete($tid);
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}
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}
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/**
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* Override parent::configDefaults().
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*/
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public function configDefaults() {
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return array(
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'vocabulary' => 0,
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) + parent::configDefaults();
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}
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/**
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* Override setTargetElement to operate on a target item that is a taxonomy term.
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*/
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public function setTargetElement(FeedsSource $source, $target_term, $target_element, $value) {
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switch ($target_element) {
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case 'parent':
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if (!empty($value)) {
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$terms = taxonomy_get_term_by_name($value);
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$parent_tid = '';
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foreach ($terms as $term) {
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if ($term->vid == $target_term->vid) {
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$parent_tid = $term->tid;
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}
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}
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if (!empty($parent_tid)) {
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$target_term->parent[] = $parent_tid;
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}
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else {
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$target_term->parent[] = 0;
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}
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}
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else {
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$target_term->parent[] = 0;
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}
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break;
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case 'parentguid':
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// value is parent_guid field value
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$query = db_select('feeds_item')
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->fields('feeds_item', array('entity_id'))
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->condition('entity_type', $this->entityType());
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$parent_tid = $query->condition('guid', $value)->execute()->fetchField();
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$target_term->parent[] = ($parent_tid) ? $parent_tid : 0;
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break;
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case 'weight':
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if (!empty($value)) {
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$weight = intval($value);
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}
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else {
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$weight = 0;
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}
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$target_term->weight = $weight;
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break;
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default:
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parent::setTargetElement($source, $target_term, $target_element, $value);
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break;
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}
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}
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/**
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* Return available mapping targets.
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*/
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public function getMappingTargets() {
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$targets = parent::getMappingTargets();
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$targets += array(
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'name' => array(
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'name' => t('Term name'),
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'description' => t('Name of the taxonomy term.'),
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'optional_unique' => TRUE,
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),
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'parent' => array(
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'name' => t('Parent: Term name'),
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'description' => t('The name of the parent taxonomy term.'),
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'optional_unique' => TRUE,
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),
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'parentguid' => array(
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'name' => t('Parent: GUID'),
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'description' => t('The GUID of the parent taxonomy term.'),
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'optional_unique' => TRUE,
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),
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'weight' => array(
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'name' => t('Term weight'),
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'description' => t('Weight of the taxonomy term.'),
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'optional_unique' => TRUE,
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),
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'description' => array(
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'name' => t('Term description'),
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'description' => t('Description of the taxonomy term.'),
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),
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);
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// Let implementers of hook_feeds_term_processor_targets() add their targets.
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try {
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self::loadMappers();
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$entity_type = $this->entityType();
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$bundle = $this->bundle();
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drupal_alter('feeds_processor_targets', $targets, $entity_type, $bundle);
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}
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catch (Exception $e) {
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// Do nothing.
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}
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return $targets;
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}
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/**
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* Get id of an existing feed item term if available.
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*/
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protected function existingEntityId(FeedsSource $source, FeedsParserResult $result) {
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if ($tid = parent::existingEntityId($source, $result)) {
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return $tid;
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}
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// The only possible unique target is name.
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foreach ($this->uniqueTargets($source, $result) as $target => $value) {
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if ($target == 'name') {
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$vocabulary = $this->vocabulary();
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if ($tid = db_query("SELECT tid FROM {taxonomy_term_data} WHERE name = :name AND vid = :vid", array(':name' => $value, ':vid' => $vocabulary->vid))->fetchField()) {
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return $tid;
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}
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}
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}
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return 0;
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}
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/**
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* Return vocabulary to map to.
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*/
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public function vocabulary() {
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if ($vocabulary = taxonomy_vocabulary_machine_name_load($this->bundle())) {
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return $vocabulary;
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}
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throw new Exception(t('No vocabulary defined for Taxonomy Term processor.'));
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}
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}
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