Re: [Neo4j] Basic Ruby/Neo4j question
So declare the node "a" before the transaction block.
Or (as you would otherwise too). provide a means to access a from the graph
either by linking it to the reference node and navigating from there or by
indexing it and retrieving it from the index.
Cheers
Michael
Am 11.05.2011 um 20:35 schrieb Peter Neubauer:
> Vaccaro,
> could this be a simple Ruby scoping issue, since you are defining a within
> the transaction block? If you move the definition onto a global variable or
> declare a outside the block, does it work then?
>
> Cheers,
>
> /peter neubauer
>
> GTalk: neubauer.peter
> Skype peter.neubauer
> Phone +46 704 106975
> LinkedIn http://www.linkedin.com/in/neubauer
> Twitter http://twitter.com/peterneubauer
>
> http://www.neo4j.org - Your high performance graph database.
> http://startupbootcamp.org/- Öresund - Innovation happens HERE.
> http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
>
>
> On Wed, May 11, 2011 at 10:47 AM, Vaccaro, Kristen M
> wrote:
>
>> Hi, I just started using Neo4j and I've got a pretty basic question. I've
>> been running the gem using JRuby but I'm having trouble calling on
>> edges/nodes I've made in previous transactions. So one of the very basic
>> example scripts I've been working with looks like:
>>
>> require "rubygems"
>> require 'neo4j'
>> Neo4j::Transaction.run do
>> a = Neo4j::Node.new :name => 'A'
>> b = Neo4j::Node.new :name => 'B'
>> c = Neo4j::Node.new :name => 'C'
>> d = Neo4j::Node.new :name => 'D'
>> e = Neo4j::Node.new :name => 'E'
>> a.outgoing(:friends) << b << c
>> b.outgoing(:friends) << d << e
>> c.outgoing(:friends) << b
>> end
>>
>> If I call on any of those within the same transaction, things work great,
>> but if I run that and then open a new transaction to query it, say:
>>
>> Neo4j::Transaction.run do
>> a.outgoing(:friends).depth(2).each {|node| puts node[:name]}
>> end
>>
>> I get undefined local variable errors for a. I thought that maybe I was
>> missing a step where the database committed, but when I tried to switch over
>> to the "Transaction.new ... Transaction.finish" formulation, I started
>> getting undefined method errors for 'finish'... I assume I'm missing some
>> basic step, but didn't see an answer in the examples/documentation, so I'd
>> appreciate any help!
>> Kristen
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Re: [Neo4j] Basic Ruby/Neo4j question
Vaccaro,
could this be a simple Ruby scoping issue, since you are defining a within
the transaction block? If you move the definition onto a global variable or
declare a outside the block, does it work then?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high performance graph database.
http://startupbootcamp.org/- Öresund - Innovation happens HERE.
http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party.
On Wed, May 11, 2011 at 10:47 AM, Vaccaro, Kristen M wrote:
> Hi, I just started using Neo4j and I've got a pretty basic question. I've
> been running the gem using JRuby but I'm having trouble calling on
> edges/nodes I've made in previous transactions. So one of the very basic
> example scripts I've been working with looks like:
>
> require "rubygems"
> require 'neo4j'
> Neo4j::Transaction.run do
> a = Neo4j::Node.new :name => 'A'
> b = Neo4j::Node.new :name => 'B'
> c = Neo4j::Node.new :name => 'C'
> d = Neo4j::Node.new :name => 'D'
> e = Neo4j::Node.new :name => 'E'
> a.outgoing(:friends) << b << c
> b.outgoing(:friends) << d << e
> c.outgoing(:friends) << b
> end
>
> If I call on any of those within the same transaction, things work great,
> but if I run that and then open a new transaction to query it, say:
>
> Neo4j::Transaction.run do
> a.outgoing(:friends).depth(2).each {|node| puts node[:name]}
> end
>
> I get undefined local variable errors for a. I thought that maybe I was
> missing a step where the database committed, but when I tried to switch over
> to the "Transaction.new ... Transaction.finish" formulation, I started
> getting undefined method errors for 'finish'... I assume I'm missing some
> basic step, but didn't see an answer in the examples/documentation, so I'd
> appreciate any help!
> Kristen
> ___
> Neo4j mailing list
> User@lists.neo4j.org
> https://lists.neo4j.org/mailman/listinfo/user
>
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[Neo4j] Basic Ruby/Neo4j question
Hi, I just started using Neo4j and I've got a pretty basic question. I've been
running the gem using JRuby but I'm having trouble calling on edges/nodes I've
made in previous transactions. So one of the very basic example scripts I've
been working with looks like:
require "rubygems"
require 'neo4j'
Neo4j::Transaction.run do
a = Neo4j::Node.new :name => 'A'
b = Neo4j::Node.new :name => 'B'
c = Neo4j::Node.new :name => 'C'
d = Neo4j::Node.new :name => 'D'
e = Neo4j::Node.new :name => 'E'
a.outgoing(:friends) << b << c
b.outgoing(:friends) << d << e
c.outgoing(:friends) << b
end
If I call on any of those within the same transaction, things work great, but
if I run that and then open a new transaction to query it, say:
Neo4j::Transaction.run do
a.outgoing(:friends).depth(2).each {|node| puts node[:name]}
end
I get undefined local variable errors for a. I thought that maybe I was missing
a step where the database committed, but when I tried to switch over to the
"Transaction.new ... Transaction.finish" formulation, I started getting
undefined method errors for 'finish'... I assume I'm missing some basic step,
but didn't see an answer in the examples/documentation, so I'd appreciate any
help!
Kristen
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