Merge pull request #133 from pradpnayak/CRM-12061

[civicrm-core.git] / api / v3 / EntityTag.php

<?php
// $Id$

/*
 +--------------------------------------------------------------------+
 | CiviCRM version 4.3                                                |
 +--------------------------------------------------------------------+
 | Copyright CiviCRM LLC (c) 2004-2013                                |
 +--------------------------------------------------------------------+
 | This file is a part of CiviCRM.                                    |
 |                                                                    |
 | CiviCRM is free software; you can copy, modify, and distribute it  |
 | under the terms of the GNU Affero General Public License           |
 | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
 |                                                                    |
 | CiviCRM is distributed in the hope that it will be useful, but     |
 | WITHOUT ANY WARRANTY; without even the implied warranty of         |
 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
 | See the GNU Affero General Public License for more details.        |
 |                                                                    |
 | You should have received a copy of the GNU Affero General Public   |
 | License and the CiviCRM Licensing Exception along                  |
 | with this program; if not, contact CiviCRM LLC                     |
 | at info[AT]civicrm[DOT]org. If you have questions about the        |
 | GNU Affero General Public License or the licensing of CiviCRM,     |
 | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
 +--------------------------------------------------------------------+
*/

/**
 * File for the CiviCRM APIv3 entity tag functions
 *
 * @package CiviCRM_APIv3
 * @subpackage API_EntityTag
 *
 * @copyright CiviCRM LLC (c) 2004-2013
 * @version $Id: EntityTag.php 30879 2010-11-22 15:45:55Z shot $
 */

/**
 * Include utility functions
 */

/**
 * {@getfields EntityTag_get}
 * @example EntityTagGet.php
 *
 * @param array $params
 *
 * @return array
 */
function civicrm_api3_entity_tag_get($params) {


  $values = CRM_Core_BAO_EntityTag::getTag($params['entity_id'], $params['entity_table']);
  $result = array();
  foreach ($values as $v) {
    $result[$v] = array('tag_id' => $v);
  }
  return civicrm_api3_create_success($result, $params);
}

/**
 * Adjust Metadata for Get action
 *
 * The metadata is used for setting defaults, documentation & validation
 * @param array $params array or parameters determined by getfields
 */
function _civicrm_api3_entity_tag_get_spec(&$params) {
  $params['entity_id']['api.required'] = 1;
  $params['entity_id']['api.aliases'] = array('contact_id');
  $params['entity_table']['api.default'] = 'civicrm_contact';
}

/**
 *
 * @param <type> $params
 *
 * @return <type>
 * @todo EM 7 Jan 2011 - believe this should be deleted
 * @deprecated
 */
function civicrm_api3_entity_tag_display($params) {

  civicrm_api3_verify_one_mandatory($params, NULL, array('entity_id', 'contact_id'));

  $entityID = NULL;
  $entityTable = 'civicrm_contact';

  if (!($entityID = CRM_Utils_Array::value('entity_id', $params))) {
    $entityID = CRM_Utils_Array::value('contact_id', $params);
  }


  if (CRM_Utils_Array::value('entity_table', $params)) {
    $entityTable = $params['entity_table'];
  }

  $values = CRM_Core_BAO_EntityTag::getTag($entityID, $entityTable);
  $result = array();
  $tags   = CRM_Core_PseudoConstant::tag();
  foreach ($values as $v) {
    $result[] = $tags[$v];
  }
  return implode(',', $result);
}

/**
 *
 * @param array $params
 *
 * @return array
 * {@getfields EntityTag_create}
 * @example EntityTagCreate.php
 */
function civicrm_api3_entity_tag_create($params) {


  return _civicrm_api3_entity_tag_common($params, 'add');
}

/**
 *{@getfields EntityTag_delete}
 * @example EntityTagGet.php
 *
 * @param array $params
 *
 * @return array
 */
function civicrm_api3_entity_tag_delete($params) {

  return _civicrm_api3_entity_tag_common($params, 'remove');
}

/**
 * modify metadata
 */
function _civicrm_api3_entity_tag_delete_spec(&$params) {
  // set as not required as tag_id also acceptable & no either/or std yet
  $params['id']['api.required'] = 0;
}

/**
 *
 * @param <type> $params
 * @param <type> $op
 *
 * @return <type>
 */
function _civicrm_api3_entity_tag_common($params, $op = 'add') {

  $entityIDs   = array();
  $tagsIDs     = array();
  $entityTable = 'civicrm_contact';
  if (is_array($params)) {
    foreach ($params as $n => $v) {
      if ((substr($n, 0, 10) == 'contact_id') || (substr($n, 0, 9) == 'entity_id')) {
        $entityIDs[] = $v;
      }
      elseif (substr($n, 0, 6) == 'tag_id') {
        $tagIDs[] = $v;
      }
      elseif (substr($n, 0, 12) == 'entity_table') {
        $entityTable = $v;
      }
    }
  }
  if (empty($entityIDs)) {
    return civicrm_api3_create_error('contact_id is a required field');
  }

  if (empty($tagIDs)) {
    return civicrm_api3_create_error('tag_id is a required field');
  }

  $values = array('is_error' => 0);
  if ($op == 'add') {
    $values['total_count'] = $values['added'] = $values['not_added'] = 0;
    foreach ($tagIDs as $tagID) {
      list($te, $a, $na) = CRM_Core_BAO_EntityTag::addEntitiesToTag($entityIDs, $tagID, $entityTable);
      $values['total_count'] += $te;
      $values['added'] += $a;
      $values['not_added'] += $na;
    }
  }
  else {
    $values['total_count'] = $values['removed'] = $values['not_removed'] = 0;
    foreach ($tagIDs as $tagID) {
      list($te, $r, $nr) = CRM_Core_BAO_EntityTag::removeEntitiesFromTag($entityIDs, $tagID, $entityTable);
      $values['total_count'] += $te;
      $values['removed'] += $r;
      $values['not_removed'] += $nr;
    }
  }
  return $values;
}