Seattle Example

Datomic distribution has a sample maintained by Seattle user group. This document explains how to run the Seattle example on Diametric gem. This document assumes Peer-based API on JRuby. Some of methods are not supported on REST-API currently.

1. Schema definition

   class Seattle
     include Diametric::Entity
     include Diametric::Persistence::Peer
   
     attribute :name, String, :cardinality => :one, :fulltext => true, :doc => "A community's name"
     attribute :url, String, :cardinality => :one, :doc => "A community's url"
     attribute :neighborhood, Ref, :cardinality => :one, :doc => "A community's neighborhood"
     attribute :category, String, :cardinality => :many, :fulltext => true, :doc => "All community categories"
     attribute :orgtype, Ref, :cardinality => :one, :doc => "A community orgtype enum value"
     attribute :type, Ref, :cardinality => :one, :doc => "A community type enum value"
     enum :orgtype, [:community, :commercial, :nonprofit, :personal]
     enum :type, [:email_list, :twitter, :facebook_page, :blog, :website, :wiki, :myspace, :ning]
   end
   
   class Neighborhood
     include Diametric::Entity
     include Diametric::Persistence::Peer
   
     attribute :name, String, :cardinality => :one, :unique => :identity, :doc => "A unique neighborhood name(upsertable)"
     attribute :district, Ref, :cardinality => :one, :doc => "A neighborhood's district"
   end
   
   class District
     include Diametric::Entity
     include Diametric::Persistence::Peer
   
     attribute :name, String, :cardinality => :one, :unique => :identity, :doc => "A unique district name (upsertable)"
     attribute :region, Ref, :cardinality => :one, :doc => "A district region enum value"
     enum :region, [:n, :ne, :e, :se, :s, :sw, :w, :nw]
   end