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<?php
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/**
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* @file
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* UUID path module functions.
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*/
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/**
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* Implements hook_entity_uuid_load().
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*/
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function uuid_path_entity_uuid_load(&$entities, $entity_type) {
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_uuid_path_load_url_aliases($entities, $entity_type);
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}
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/**
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* Implements hook_entity_uuid_save().
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*/
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function uuid_path_entity_uuid_save(&$entity, $entity_type) {
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_uuid_path_save_url_aliases($entity, $entity_type);
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}
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/**
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* Loads url aliases in the corresponding entity.
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*/
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function _uuid_path_load_url_aliases(&$entities, $entity_type) {
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$info = entity_get_info($entity_type);
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// We only care about entities with URLs.
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if (!isset($info['uri callback'])) {
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return;
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}
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$callback = $info['uri callback'];
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foreach ($entities as $id => $entity) {
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$path = $callback($entity);
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$aliases = _uuid_path_url_alias_load($path['path']);
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// Ignore local IDs.
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foreach ($aliases as &$alias) {
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unset($alias->pid);
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unset($alias->source);
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}
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$entities[$id]->url_alias = $aliases;
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}
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}
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/**
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* Saves the received url aliases.
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*/
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function _uuid_path_save_url_aliases(&$entity, $entity_type) {
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$info = entity_get_info($entity_type);
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// We only care when there is a url callback.
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if (!isset($info['uri callback'])) {
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return FALSE;
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}
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$callback = $info['uri callback'];
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$uri = $callback($entity);
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$path = $uri['path'];
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// Delete existing aliases.
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path_delete(array('source' => $path));
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// Continue if aliases are present.
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if (empty($entity->url_alias)) {
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return FALSE;
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}
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foreach ($entity->url_alias as $alias) {
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$entry = (array) $alias;
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$entry['source'] = $path;
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path_save($entry);
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}
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}
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/**
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* Loads all aliases associated with a path.
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*
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* @param string $path
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* The source path to look up.
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*
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* @return array
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* Array of paths or NULL if none found.
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*/
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function _uuid_path_url_alias_load($path) {
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return db_select('url_alias')
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->condition('source', $path)
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->fields('url_alias')
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->execute()
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->fetchAll(PDO::FETCH_OBJ);
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}
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