我在这里有一个小问题。这是我的代码:
DB::beginTransaction();
try{
$created = new TransportTypeColumn();
$created->name = $translated_ids[0];
if(!$created->save())
throw new \Exception("failed saving transport type column");
DB::commit();
return response()->json(['success'=>'Property has been created successfully', 'data'=>$created],200);
}catch(\Exception $e){
DB::rollback();
return response()->json(['error'=>'Something went wrong, please try later.'], 500);
}
那么我需要这段代码吗? :
if(!$created->save())
throw new \Exception("failed saving transport type column");
还是如果save()函数不成功,它本身是否会引发异常?
答案 0 :(得分:3)
我知道这个问题已经有了答案,但是对于那些偶然发现并希望抛出异常的人来说,您可以使用方法 saveOrFail()
而不是 save()
。
DB::beginTransaction();
try{
$created = new TransportTypeColumn();
$created->name = $translated_ids[0];
$created->saveOrFail();
DB::commit();
return response()->json(['success'=>'Property has been created successfully', 'data'=>$created],200);
} catch(\Exception $e) {
DB::rollback();
return response()->json(
['error'=>'Something went wrong, please try later.'],
$e->getCode()
);
}
此方法至少从 Laravel 5.5 开始就存在,您可以在 docs
中找到有关它的更多信息答案 1 :(得分:1)
save
返回一个布尔值,您需要检查保存是否成功,但是除非发生mysql错误,否则您将不会获得任何异常。