Adding a node in a transaction using py2neo

Question

I have code that uses py2neo to create and insert a node into the node4j database.

However, I need to do this in a transaction.

graph.create(node) creates and commits the node.

I get a transaction by tx = graph.cypher.begin()

The documentation says Transaction accepts a statement. I don't have a statement, I have a Node instance.

Is there any way to convert a Node instance to a statement, or do I need to retool my code to create nodes using Cypher statements?

Or, does py2neo implement transactions some other way?

betseyb · Accepted Answer · 2015-06-17 17:56:34Z

2

It's pretty clear from the docs that Transactions are only available for Cypher statements in py2neo, since transactions are only mentioned under the Cypher API.

See http://py2neo.org/2.0/intro.html#cypher

answered Jun 17, 2015 at 17:56

betseyb

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2 Comments

Michael Hunger Over a year ago

Yes use the Cypher based transactions for all your needs !

Nigel Small Over a year ago

All correct. Py2neo only supports transactions when running Cypher directly. There currently exist a few Cypher builder classes that could help but this is an experimental feature and not very comprehensive.

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