Datomic: nested component entities

gistfile1.clj

;; see http://stackoverflow.com/questions/16242750/nesting-structures-with-datomic
(require '[datomic.api :as d])
(def uri "datomic:mem://test")
(d/create-database uri)
(def conn (d/connect uri))

;; sample attributes
(d/transact conn [{:db/id #db/id[:db.part/db]
                   :db/ident :some/ref-value
                   :db/valueType :db.type/ref
                   :db/isComponent true
                   :db/cardinality :db.cardinality/many  
                   :db.install/_attribute :db.part/db}
                  {:db/id #db/id[:db.part/db]
                   :db/ident :some/list-value
                   :db/valueType :db.type/string
                   :db/cardinality :db.cardinality/many
                   :db.install/_attribute :db.part/db}])

;; see http://blog.datomic.com/2013/06/component-entities.html
;; [["a" "b" "c"]["d" "e" "f"]]
(d/transact conn [{:db/id #db/id[:db.part/db]
                   :some/ref-value [{ :some/list-value ["a" "b" "c"]}
                                    { :some/list-value ["d" "e" "f"]}]}])