domvas
EctoNeo4j - an Ecto adapter for Neo4j
Hi Elixir world,
last night, bolt_sips v2 was released by @Florin, which means that Neo4j Entreprise Edition is now covered by the driver.
Using bolt_sips can be rough sometimes, especially in a Phoenix project when you wan to use Ecto… and can’t.
That’s the purpose of EctoNeo4j, have (almost) all the Ecto features, from Shema to Repo work with Neo4j.
You can find the library here: https://hex.pm/packages/ecto_neo4j
You can now enjoy your Repo.*, have your migrations work, etc. But remember that Ecto is designed for relational database and Neo4j is a graph database then not all Ecto features work. So don’t expect join, etc. to work.
Additionnally, Ecto.Query is sql-oriented then only simple cypher query are supported (i.e on one node or one label).
See docs for more information.
Hope this library will help you.
And thanks to @Florin and @mschae for their work on bolt_sips and boltex!
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domvas
As I said in another topic, note that soon ecto_neo4j won’t be maintained anymore.
Having a way to connect Neo4j and Ecto has been a dream for most of Neo4j’s users who love Elixir, but in the end, it’s an unsolvable problem: graph concept doesn’t fit in relational ones.
ecto_neo4j was an attempt, and yes it has some good parts but you can’t have a really nice modeled graph if you always have to think relational…
But don’t be alarmed, it’s not my goal to leave you with unmaintained / unsatisfying package. An other one is on its way and will be soon available (in the next few days if I’m a genius, so maybe next few weeks :D). It’ll be announced here on elixir forum so keep it touch!
domvas
Version 0.6.2 of ecto_neo4j is out with… a (light) relationship support.
It was a bit like putting squares in triangles but it works for simple operations, which ease the data management.
It is now possible to insert, update, preload your relationship in a classic ecto way even if specific functions (with same name) need to be used.
A comprehensive doc has been added too: https://hexdocs.pm/ecto_neo4j/up_and_running.html
which demonstrate all the features with examples.
Hope you’ll enjoy this new version.
Florin
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