/**
* returns the list of fields that can be exported
*
* @access public
* return array
*/
function &export($prefix = false)
{
if (!$GLOBALS['_CRM_MAILING_EVENT_DAO_SUBSCRIBE']['_export']) {
$GLOBALS['_CRM_MAILING_EVENT_DAO_SUBSCRIBE']['_export'] = array();
$fields =& CRM_Mailing_Event_DAO_Subscribe::fields();
foreach ($fields as $name => $field) {
if (CRM_Utils_Array::value('export', $field)) {
if ($prefix) {
$GLOBALS['_CRM_MAILING_EVENT_DAO_SUBSCRIBE']['_export']['mailing_event_subscribe'] =& $fields[$name];
} else {
$GLOBALS['_CRM_MAILING_EVENT_DAO_SUBSCRIBE']['_export'][$name] =& $fields[$name];
}
}
}
}
return $GLOBALS['_CRM_MAILING_EVENT_DAO_SUBSCRIBE']['_export'];
}