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<?php
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/**
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* @file
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* Plugin to provide an argument handler for all entity IDs.
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*/
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/**
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* Plugins are described by creating a $plugin array which will be used
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* by the system that includes this file.
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*/
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$plugin = array(
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'title' => t("Entity: UUID"),
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'description' => t('Creates an entity context from an entity UUID argument.'),
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'context' => 'uuid_entity_uuid_context',
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'get child' => 'uuid_entity_uuid_get_child',
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'get children' => 'uuid_entity_uuid_get_children',
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);
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/**
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* @todo document me properly
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*/
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function uuid_entity_uuid_get_child($plugin, $parent, $child) {
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$plugins = uuid_entity_uuid_get_children($plugin, $parent);
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return $plugins[$parent . ':' . $child];
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}
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/**
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* @todo document me properly
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*/
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function uuid_entity_uuid_get_children($original_plugin, $parent) {
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$entities = entity_get_info();
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$plugins = array();
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foreach ($entities as $entity_type => $entity) {
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$plugin = $original_plugin;
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$plugin['title'] = t('@entity: UUID', array('@entity' => $entity['label']));
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$plugin['keyword'] = $entity_type;
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$plugin['description'] = t('Creates @entity context from an UUID argument.', array('@entity' => $entity_type));
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$plugin['name'] = $parent . ':' . $entity_type;
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$plugin_id = $parent . ':' . $entity_type;
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drupal_alter('ctools_entity_context', $plugin, $entity, $plugin_id);
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$plugins[$plugin_id] = $plugin;
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}
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drupal_alter('ctools_entity_contexts', $plugins);
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return $plugins;
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}
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/**
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* Discover if this argument gives us the entity we crave.
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*/
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function uuid_entity_uuid_context($arg = NULL, $conf = NULL, $empty = FALSE) {
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$entity_type = explode(':', $conf['name']);
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$entity_type = $entity_type[1];
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// If unset it wants a generic, unfilled context.
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if ($empty) {
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return ctools_context_create_empty('entity:' . $entity_type);
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}
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// We can accept either an entity object or a pure id.
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if (is_object($arg)) {
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return ctools_context_create('entity:' . $entity_type, $arg);
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}
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if (!is_string($arg)) {
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return FALSE;
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}
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$entity_ids = entity_get_id_by_uuid($entity_type, array($arg));
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if (!isset($entity_ids[$arg])) {
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return FALSE;
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}
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$entity_id = $entity_ids[$arg];
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$entities = entity_load($entity_type, array($entity_id));
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if (!$entities) {
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return FALSE;
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}
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return ctools_context_create('entity:' . $entity_type, $entities[$entity_id]);
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}
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