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<?php
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/**
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* @file
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* Features support to export entities from any Deploy <em>fetch-only</em> plan.
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*/
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/**
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* Implements [component]_features_export_options().
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*
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* Deploy plans are used as the initial source for an export. Deploy solves
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* complex dependency chains for us, so the entities actually can be used as is.
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*/
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function uuid_entities_features_export_options() {
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$options = array();
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if (module_exists('deploy')) {
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$plans = deploy_plan_load_all(array('fetch_only' => 1));
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foreach ($plans as $plan) {
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$options[$plan->name] = $plan->title;
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}
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}
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return $options;
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}
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/**
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* Implements [component]_features_export().
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*/
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function uuid_entities_features_export($components, &$export, $module_name) {
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foreach ($components as $plan_name) {
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$export['features']['uuid_entities'][$plan_name] = $plan_name;
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}
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}
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/**
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* Implements [component]_features_export_render().
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*
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* Components corresponds to the name of Deploy plans. However, once exported,
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* entities can be rendered directly from the default hook without Deploy or the
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* initial plan.
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*/
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function uuid_entities_features_export_render($module_name, $components, $export = NULL) {
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$code = array();
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$code[] = ' $entities = array();';
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$code[] = '';
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foreach ($components as $component) {
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$entities = array();
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if (module_exists('deploy') && $plan = deploy_plan_load($component)) {
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$entities = $plan->getIterator();
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}
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else {
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features_include_defaults(array('uuid_entities'));
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$default_entities = module_invoke($module_name, 'uuid_default_entities');
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foreach ($default_entities[$component] as $entity) {
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$metadata = $entity->__metadata;
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$entity_type = $metadata['type'];
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$entity_info = entity_get_info($entity_type);
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$results = entity_uuid_load($entity_type, array($entity->{$entity_info['entity keys']['uuid']}), NULL, TRUE);
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if (!empty($results)) {
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$entity = reset($results);
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// Re-attach the metadata after loading the clean entity.
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$entity->__metadata = $metadata;
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$entities[] = $entity;
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}
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}
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}
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foreach ($entities as $entity) {
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$entity_type = $entity->__metadata['type'];
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$entity_info = entity_get_info($entity_type);
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// We need to remove entity id and revision keys for better consistency.
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$id_key = $entity_info['entity keys']['id'];
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if (isset($entity->{$id_key})) {
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unset($entity->{$id_key});
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}
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if (!empty($entity_info['entity keys']['revision'])) {
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$vid_key = $entity_info['entity keys']['revision'];
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if (isset($entity->{$vid_key})) {
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unset($entity->{$vid_key});
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}
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if (!empty($entity_info['entity keys']['revision uuid'])) {
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$vuuid_key = $entity_info['entity keys']['revision uuid'];
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unset($entity->{$vuuid_key});
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}
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}
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// We unset some common timestamp properties, since those will change and
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// constantly leave the feature overidden.
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$keys = array('created', 'updated', 'changed', 'revision_timestamp', 'timestamp', 'stamp', 'current');
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foreach ($keys as $key) {
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if (isset($entity->{$key})) {
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unset($entity->{$key});
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}
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}
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// Let other modules alter exported entities.
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drupal_alter('uuid_entities_features_export_entity', $entity, $entity_type);
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// Field handling.
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list(, , $bundle_name) = entity_extract_ids($entity_type, $entity);
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$instances = field_info_instances($entity_type, $bundle_name);
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foreach ($instances as $field_name => $instance) {
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$field = field_info_field($field_name);
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if (!empty($entity->{$field_name})) {
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foreach ($entity->{$field_name} as $langcode => &$items) {
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// Let other modules alter fields on exported entities.
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// We are not using drupal_alter() here, because of it's complexity
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// dealing with over two alterable arguments.
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$hook = 'uuid_entities_features_export_field_alter';
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foreach (module_implements($hook) as $module_name) {
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$function = $module_name . '_' . $hook;
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$function($entity_type, $entity, $field, $instance, $langcode, $items);
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}
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foreach ($items as &$item) {
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// We don't need to export these common field keys.
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foreach (array('safe_value', 'safe_summary') as $key) {
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if (isset($item[$key])) {
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unset($item[$key]);
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}
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}
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uuid_entities_features_clean($item);
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}
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}
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}
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}
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uuid_entities_features_clean($entity);
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// Convert entities to array to avoid having them in JSON, returned from standard implementation of $entity->export().
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if (is_object($entity) && method_exists($entity, 'export')) {
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$entity = get_object_vars($entity);
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}
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$code[] = ' $entities[\'' . check_plain($component) . '\'][] = (object) ' . features_var_export($entity, ' ') . ';';
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}
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}
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$code[] = '';
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$code[] = ' return $entities;';
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return array('uuid_default_entities' => implode("\n", $code));
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}
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/**
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* Implements [component]_features_export_rebuild().
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*/
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function uuid_entities_features_rebuild($module_name) {
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uuid_entities_rebuild($module_name, 'rebuild');
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}
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/**
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* Implements [component]_features_export_revert().
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*/
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function uuid_entities_features_revert($module_name) {
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uuid_entities_rebuild($module_name, 'revert');
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}
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/**
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* Helper function to rebuild entities from a plan.
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*/
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function uuid_entities_rebuild($module_name = '', $op = 'rebuild') {
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features_include_defaults(array('uuid_entities'));
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$entities = module_invoke($module_name, 'uuid_default_entities');
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if (!empty($entities)) {
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foreach ($entities as $plan_name => $entities) {
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// Let other modules do things before default entities are created.
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module_invoke_all("uuid_entities_pre_$op", $plan_name);
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foreach ($entities as $entity) {
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entity_uuid_save($entity->__metadata['type'], $entity);
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}
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// Let other modules do things after default entities are created.
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module_invoke_all("uuid_entities_post_$op", $plan_name);
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}
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}
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}
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/**
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* Helper function to sort properties of an object.
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*
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* This will maintain better consistency. Keys might get shifted order or type
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* due to alterations sometimes.
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*/
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function uuid_entities_features_clean(&$object) {
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$properties = array();
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foreach ($object as $key => $value) {
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$properties[$key] = $value;
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if (is_object($object)) {
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unset($object->{$key});
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}
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elseif (is_array($object)) {
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unset($object[$key]);
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}
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}
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ksort($properties);
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foreach ($properties as $key => $value) {
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// Make properties type consistent.
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if (is_string($value) || is_numeric($value)) {
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if (is_object($object)) {
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$object->{$key} = "$value";
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}
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elseif (is_array($object)) {
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$object[$key] = "$value";
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}
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}
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else {
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if (is_object($object)) {
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$object->{$key} = $value;
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}
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elseif (is_array($object)) {
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$object[$key] = $value;
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}
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}
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}
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}
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