Creating a vertex of a specific OrientDB class

Alvin Khaled

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Sep 12, 2015, 1:59:00 AM9/12/15

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Is it possible to create an entry under a class that extends V?

Darrick Wiebe

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Sep 12, 2015, 12:31:12 PM9/12/15

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Orient exposes the ability to create a vertex with a custom class as follows:

graph = Pacer.orient

graph.tx { graph.create_vertex 'class:MyCustomClass' }

Cheers,

Darrick

On Sat, Sep 12, 2015 at 1:59 AM, Alvin Khaled <aak...@gmail.com> wrote:

Is it possible to create an entry under a class that extends V?

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Alvin Khaled

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Sep 12, 2015, 1:07:12 PM9/12/15

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Thanks Darrick!

Alvin Khaled

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Sep 12, 2015, 1:34:12 PM9/12/15

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I suppose I should have ask this as well: Is there a "nice" way to filter by class?
My workaround is graph.v('@CLASS' => 'MyCustomClass')

Darrick Wiebe

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Sep 12, 2015, 2:41:42 PM9/12/15

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Right now there is not a lot of support for Orient's custom classes. I did a bit of experimentation around wrapping up some of the functionality, but didn't go very far with it. If you want to check it out and maybe extend it, the code is not very complex and exists in pacer-orient/graph.rb and pacer-orient/orient_type.rb.

Good luck!

Darrick

Topping Bowers

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Sep 16, 2015, 9:50:24 AM9/16/15

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Sorry to be dence... I can now see how to use 'class:MyCustomClass' for vertexes... but I don't see how to do it for edges. You cannot say: v.add_edges_to('class:MyCustomEdgeClass') and if you add the label... v.add_edges_to('class:MyCustomEdgeClass') then it errors... doing this... v.add_edges_to('MyCustomEdgeClass') works... but it seems broken in the orient graph visualizer (can't unlink due to an 'undefined' class, etc).

Topper

Alvin Ali Khaled

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Sep 16, 2015, 10:49:24 AM9/16/15

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Try: g.create_edge(nil, from, to, 'EdgeClass')

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