如何与AFNetworking 2，严格按顺序发送请求？ [英] How send request with AFNetworking 2 in strict sequential order?

问题描述

我在做同步到一个SQLite数据库镜像到一个服务器之一。

I'm doing the sync to mirror a sqlite DB to a server one.

我有一个主从表，其中的细节必须尽快发送到服务器。然而，可能是细节3细节2.之前，我需要模仿对文档所做的步骤和尊重操作的顺序到达。

I have a Master-Detail table, where the details must be send to the server ASAP. However, is possible that detail 3 arrive before detail 2. I need to mimic the steps made to the document and respect the order of the operations.

当一个记录保存在本地，我发一个通知，然后发布该数据。我怎么可以用AFNetworking保证严格的顺序？

When a record is saved locally, I send a notification and then post the data. How I can guarantee a strict sequential order using AFNetworking?

推荐答案

默认情况下，作业同时运行，没有保证的顺序。确保行动发挥的唯一方法是prevent从在给定时间运行的，由 operationQueue.maximumConcurrentOperations 属性设置为<$ C多个请求的操作$ C> 1 的（或者，如果你不使用管理，确保业务排队进入操作队列正是如此设定的属性）的

By default, operations run concurrently, with no guarantee of order. The only way to ensure that actions play is to prevent more than one request operation from running at a given time, by setting the operationQueue.maximumConcurrentOperations property to 1 (or, if you're not using a manager, make sure to enqueue operations into an operation queue with the property set thusly).

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