neo4jneo4j.rbgraphenedb

errors using neo4j gem for non-rails (ruby-only)

From the documentation: http://neo4jrb.readthedocs.io/en/8.0.x/Setup.html

neo4j_adaptor = Neo4j::Core::CypherSession::Adaptors::HTTP.new('http://user:pass@host:7474') Neo4j::ActiveBase.on_establish_session { Neo4j::Core::CypherSession.new(neo4j_adaptor) }

I get:

NameError: uninitialized constant Neo4j::Core::CypherSession

To fix, I added (not documented in the above):

require 'neo4j/core/cypher_session/adaptors/http'

The error changes (the first line works):

Neo4j::ActiveBase.on_establish_session { Neo4j::Core::CypherSession.new(neo4j_adaptor) } NameError: uninitialized constant Neo4j::ActiveBase

Is there a better place to see how to set up working with a heroku-based grapheneDB? I keep hitting undocumented errors when doing a cut-and-paste of the set up.

Solution

  • Thanks for pointing out the missing require. I've just added it (also feel free to click "Edit on GitHub" at the top to start a pull request if you notice anything else)

    Have you done a require "neo4j"? That should bring in ActiveBase and all of the ActiveNode / ActiveRel stuff. If that works I can add that to the docs as well