SourceAttachService.class.php
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<?php
/**
* Created by PhpStorm.
* User: liyifei2012it
* Date: 17/4/12
* Time: 10:46
*/
namespace Common\Service;
use Common\Common\Constant;
use Common\Model\SourceAttachModel;
class SourceAttachService extends AbstractService
{
// 构造方法
public function __construct()
{
parent::__construct();
$this->_d = new SourceAttachModel();
}
/**
* 保存附件数据，并返回新增数据总数
* @author zhonglei
* @param int $source_id 素材ID
* @param array $data 附件数据
* @return mixed
*/
public function diffAttach($source_id, $data)
{
if (!is_array($data)) {
$data = [];
}
// 计算将要删除的数据
$attachs = $this->list_by_conds(['source_id' => $source_id]);
$ids_del = [];
if (!empty($attachs)) {
if (empty($data)) {
// 删除已有的全部附件
$ids_del = array_column($attachs, 'source_attach_id');
} else {
// 对比找出差异附件
$ids_db = array_column($attachs, 'source_attach_id');
$ids_post = array_column($data, 'source_attach_id');
$ids_del = array_diff($ids_db, $ids_post);
}
}
$insert_all = [];
$at_ids = [];
// 新增数据
foreach ($data as $v) {
if ($v['source_attach_id'] == 0) {
unset($v['source_attach_id']);
$v['source_id'] = $source_id;
$v['at_url'] = isset($v['at_url']) ? $v['at_url'] : '';
ksort($v);
$insert_all[] = $v;
// 文件附件
if (Constant::ATTACH_TYPE_FILE == $v['at_type']) {
$at_ids[] = $v['at_id'];
}
}
}
return [$insert_all, $at_ids, $ids_del];
}
}