/**
  * Export a data structure from an entity.
  *
  * @param array $params
  *   Parameters (entity_type, uuid).
  *
  * @return array
  */
 function exportData(array $params)
 {
     $api_params = array('id' => $params['entity_id']);
     $uuid_params = $params;
     if (!($uuid = civicrm_api3('uuid', 'get', $uuid_params))) {
         throw new API_Exception(ts('Unable to obtain UUID for %1', array('1' => print_r($params, 1))), 2900);
     }
     if (!($api = civicrm_api3($params['entity_type'], 'getsingle', $api_params))) {
         throw new API_Exception(ts('Unable to obtain %1 with ID %2', array(1 => $params['entity_type'], 2 => $params['entity_id'])));
     }
     $uuid = $uuid['values']['uuid'];
     // Prepend UUID, remove numeric ID.
     $export = array_merge(array('uuid' => $uuid), $api);
     unset($export['id']);
     // If there are entities this entity depends on, add them to the UUID.
     if ($dependencies = ConfigManager::getDependencyTypes($params['entity_type'])) {
         foreach ($dependencies as $dep_column) {
             // payment_processor will be unaffected by this, which is OK it turns out ... for now.
             $dep_type = preg_replace('/_id$/', '', $dep_column);
             if (!empty($api[$dep_column])) {
                 // Explode it then iterate.
                 if ($entity_ids = explode(\CRM_Core_DAO::VALUE_SEPARATOR, $api[$dep_column])) {
                     foreach ($entity_ids as $entity_id) {
                         $dep_params = array('entity_type' => $dep_type, 'entity_id' => $api[$dep_column]);
                         if ($dep = ConfigManager::exportData($dep_params)) {
                             $export['configmgr_dependencies'][$dep_type][] = $dep;
                         }
                     }
                 }
             }
         }
     }
     return $export;
 }