Neo4j和Php处理交易中的柜台 [英] Neo4j and Php handle counter within transaction

问题描述

很好的情况是这样的：

我创建了一个称为计数节点的节点。它的初始值为0，并随着用户在我的网站上创建帐户而增加。

I create a one node called counter node. Its initial value is 0 and incremented as user create its account on my website.

因此，发生了三种操作：

So there are three operation happen to operate this:

读取个计数器节点值

在php中做一些逻辑。这里像+1一样是计数器节点的先前值

写计数器节点的新值

Read counter node value
Do some logic in php . Here like +1 to previous value of counter node
Write new value of counter node

现在的问题是，如果两个或多个用户正好来了同时创建这样的条件：

Now problem is, If two or more users are coming exactly same time and creating such a condition that

在第一个用户将新值写入计数器节点之前，第二个用户正在读取该值。因此，这将使我的计数器节点的值处于不稳定的状态。

Before first user write new value to counter node , it is being read by second user. Thus this will leave value of my 'counter node' in unstable condition.

希望您明白我的意思。

任何解决方案??

我正在使用neo4j 1.9.5和php

I am using neo4j 1.9.5 and php

Php Jadell：

Php Jadell :

https://github.com/jadell/Neo4jPHP

我听说过批处理，但不确定是否可以。

I heard of batch processing but not sure whether it will work. If any solution , Can you please give me a short example.

感谢Amit Aggarwal

Thanks Amit Aggarwal

推荐答案

使用纯REST API无法做到这一点。我会用Cypher尝试一下，也许是这样的：

You can't do that with the pure REST API. I would try it with Cypher, maybe something like:

START n=node(123)
SET n.noOfUsers = n.noOfUsers + 1
RETURN n.noOfUsers

这应该在最新版本中有效的Cypher
http://console.neo4j.org/?id=tnkldf

This should work in the latest version of Cypher http://console.neo4j.org/?id=tnkldf

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