CRM/Utils/API/ReloadOption.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.5                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2014                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26 */
  27
  28 /**
  29  * Implement the "reload" option. This option can be used with "create" to force
  30  * the API to reload a clean copy of the entity before returning the result.
  31  *
  32  * @code
  33  * $clean = civicrm_api('myentity', 'create', array(
  34  *   'options' => array(
  35  *     'reload' => 1
  36  *   ),
  37  * ));
  38  * @endcode
  39  *
  40  * @package CRM
  41  * @copyright CiviCRM LLC (c) 2004-2014
  42  * $Id$
  43  */
  44
  45 require_once 'api/Wrapper.php';
  46
  47 /**
  48  * Class CRM_Utils_API_ReloadOption
  49  */
  50 class CRM_Utils_API_ReloadOption implements API_Wrapper {
  51
  52   /**
  53    * @var CRM_Utils_API_ReloadOption
  54    */
  55   private static $_singleton = NULL;
  56
  57   /**
  58    * @return CRM_Utils_API_ReloadOption
  59    */
  60   public static function singleton() {
  61     if (self::$_singleton === NULL) {
  62       self::$_singleton = new CRM_Utils_API_ReloadOption();
  63     }
  64     return self::$_singleton;
  65   }
  66
  67   /**
  68    * {@inheritDoc}
  69    */
  70   public function fromApiInput($apiRequest) {
  71     return $apiRequest;
  72   }
  73
  74   /**
  75    * {@inheritDoc}
  76    */
  77   public function toApiOutput($apiRequest, $result) {
  78     $reloadMode = NULL;
  79     if ($apiRequest['action'] === 'create' && isset($apiRequest['params'], $apiRequest['params']['options']) && is_array($apiRequest['params']['options']) && isset($apiRequest['params']['options']['reload'])) {
  80       if (!CRM_Utils_Array::value('is_error', $result, FALSE)) {
  81         $reloadMode = $apiRequest['params']['options']['reload'];
  82       }
  83     }
  84
  85     switch ($reloadMode) {
  86       case NULL:
  87       case '0':
  88       case 'null':
  89       case '':
  90         return $result;
  91
  92       case '1':
  93       case 'default':
  94         $params = array(
  95           'id' => $result['id'],
  96         );
  97         $reloadResult = civicrm_api3($apiRequest['entity'], 'get', $params);
  98         if ($reloadResult['is_error']) {
  99           throw new API_Exception($reloadResult['error_message']);
 100         }
 101         $result['values'][$result['id']] = array_merge($result['values'][$result['id']], $reloadResult['values'][$result['id']]);
 102         return $result;
 103
 104       case 'selected':
 105         $params = array(
 106           'id' => $result['id'],
 107           'return' => $this->pickReturnFields($apiRequest),
 108         );
 109         $reloadResult = civicrm_api3($apiRequest['entity'], 'get', $params);
 110         $result['values'][$result['id']] = array_merge($result['values'][$result['id']], $reloadResult['values'][$result['id']]);
 111         return $result;
 112
 113       default:
 114         throw new API_Exception("Unknown reload mode " . $reloadMode);
 115     }
 116   }
 117
 118   /**
 119    * Identify the fields which should be returned
 120    *
 121    * @param $apiRequest
 122    * @return array
 123    */
 124   public function pickReturnFields($apiRequest) {
 125     $fields = civicrm_api3($apiRequest['entity'], 'getfields', array());
 126     $returnKeys = array_intersect(
 127       array_keys($apiRequest['params']),
 128       array_keys($fields['values'])
 129     );
 130     return $returnKeys;
 131   }
 132 }