Fix no additional participant information in paid event confirmation emails

gistfile1.txt

/**
 * Implements hook_civicrm_alterMailParams().
 */
function cudar_civicrm_alterMailParams(&$params, $context) {

  /*
   * Redirection from payment gateway which trigger default event confirmation email is missing additional participants information and participants profiles. This is fix.  
   */
  if (isset($params['groupName']) && $params['groupName'] == 'msg_tpl_workflow_event' && $params['valueName'] == 'event_online_receipt' && empty($params['tplParams']['part'] && !empty($params['tplParams']['lineItem']))) {

    //set variable that email is no test and shoudl look like live email
    $params['isTest'] = 0;
    $primiaryParticipantId = $params['tplParams']['participantID'];
    $primiaryContactId = $params['tplParams']['participant'][$primiaryParticipantId]['contact_id'];
    //loop via lineItems and load additional participants
    foreach ($params['tplParams']['lineItem'] as $k => $v) {
      foreach ($v as $participantData) {
        $result = cudar_civi_api('Participant', 'getsingle', array(
          'id' => $participantData['entity_id'],
        ));
        $params['tplParams']['part'][$k]['info'] = $result['display_name'];
        if ($participantData['entity_id'] == $primiaryParticipantId) {
          $params['tplParams']['isPrimary'] = 1;
        }
      }
    }
    //load additional profiles assigned to event
    $additionalParticipantProfile = civicrm_api3('UFJoin', 'get', array(
      'return' => array('uf_group_id.id', 'module'),
      'entity_id' => $params['tplParams']['event']['id'],
      'module' => 'CiviEvent_Additional',
    ));

    //build main participant profile
    $template = CRM_Core_Smarty::singleton();
    $preProfileID = CRM_Utils_Array::value('custom_pre_id', $params['tplParams']);
    $postProfileID = CRM_Utils_Array::value('custom_post_id', $params['tplParams']);
    if ($preProfileID) {
      CRM_Event_BAO_Event::buildCustomDisplay($preProfileID, 'customPre', $primiaryContactId, $template, $primiaryParticipantId, FALSE
      );
    }
    if ($postProfileID) {
      CRM_Event_BAO_Event::buildCustomDisplay($postProfileID, 'customPost', $primiaryContactId, $template, $primiaryParticipantId, FALSE
      );
    }

    //build addtional custom profile
    if (!$additionalParticipantProfile['is_error'] && !empty($additionalParticipantProfile['values'])) {
      foreach ($additionalParticipantProfile['values'] as $profileId => $profileData) {
        $params['tplParams']['additional_custom_pre_id'][$profileId] = $profileData['uf_group_id.id'];
      }

      $customProfile = CRM_Event_BAO_Event::buildCustomProfile($primiaryParticipantId, $params['tplParams'], $primiaryContactId);
      if (count($customProfile)) {
        $params['tplParams']['customProfile'] = $customProfile;
      }
    }
  }
}