private function _deleteFeedAttach($feedIds, $type)
{
// 查询分享内是否存在附件
$feeddata = $this->getFeeds($feedIds);
$feedDataInfo = getSubByKey($feeddata, 'feed_data');
$attachIds = array();
foreach ($feedDataInfo as $value) {
$value = unserialize($value);
!empty($value['attach_id']) && ($attachIds = array_merge($attachIds, $value['attach_id']));
}
array_filter($attachIds);
array_unique($attachIds);
!empty($attachIds) && model('Attach')->doEditAttach($attachIds, $type, '');
}