Add Datomic, for testing.
This commit is contained in:
Nick Alexander
Richard Newman
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1b1cc6f18e
3 changed files with 256 additions and 0 deletions
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[org.clojure/core.async "0.2.385"]
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[datascript "0.15.1"]
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[honeysql "0.8.0"]
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[com.datomic/datomic-free "0.9.5359"]
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[jamesmacaulay/cljs-promises "0.1.0"]]
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:cljsbuild {:builds {:release {
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196
src/datomish/d.clj
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196
src/datomish/d.clj
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(ns datomish.d
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(:require [datomic.db :as db]))
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(use '[datomic.api :only [q db] :as d])
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(use 'clojure.pprint)
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(def uri "datomic:free://localhost:4334//news")
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(d/create-database uri)
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(def conn (d/connect uri))
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(def schema-tx (read-string (slurp "src/datomish/schema.edn")))
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(println "schema-tx:")
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(pprint schema-tx)
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;; alter/attribute does not retract/assert install/attribute.
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;; @(d/transact conn [{:db/id :news/baz
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;; :db/cardinality :db.cardinality/one
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;; :db.alter/_attribute :db.part/db}])
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@(d/transact conn schema-tx)
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;; add some data:
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(def data-tx [{:news/title "Rain Tomorrow", :db/id #db/id[:db.part/user -1000001]}])
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@(d/transact conn data-tx)
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(def x
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@(d/transact conn [[:db/add #db/id[:db.part/user -1] :news/title "Rain Tomorrow 1" #db/id[:db.part/tx -1]]
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[:db/add #db/id[:db.part/user -2] :news/title "Rain Tomorrow 2" #db/id[:db.part/tx -2]]
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[:db/add #db/id[:db.part/tx -2] :news/title "Test"]]))
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;; This drops the tx entirely!
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(def x
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@(d/transact conn [[:db/add #db/id[:db.part/user -1] :news/title "Rain Tomorrow 3" 13194139534684]]))
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(def x
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@(d/transact conn [[:db/add #db/id[:db.part/user -1] :news/title "Rain Tomorrow 3" 13194139534684]
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{:db/id #db/id[:db.part/db -1] :db/ident :test/test2 :db.install/_partition :db.part/db}
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[:db/add #db/id[:db.part/tx -2] :news/title "Test"]]))
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(def x
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@(d/transact conn [[:db/add #db/id[:test/test2 -1] :news/title "Rain Tomorrow 5"]]))
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;; [:db/add #db/id[:db.part/user -2] :news/title "Rain Tomorrow 2" #db/id[:db.part/tx -2]]
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;; [:db/add #db/id[:db.part/tx -2] :news/title "Test"]]))
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(def results (q '[:find ?n :where [?n :news/title]] (db conn)))
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(println (count results))
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(pprint results)
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(pprint (first results))
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(def id (ffirst results))
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(def entity (-> conn db (d/entity id)))
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;; display the entity map's keys
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(pprint (keys entity))
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;; display the value of the entity's community name
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(println (:news/title entity))
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;; @(d/transact conn [[:db/retract )
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@(d/transact conn [[:db/add 17592186045427 :news/title "Test"]])
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;; 1. Caused by datomic.impl.Exceptions$IllegalArgumentExceptionInfo
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;; :db.error/datoms-conflict Two datoms in the same transaction
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;; conflict {:d1 [17592186045427 :news/title "Test" 13194139534372
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;; true], :d2 [17592186045427 :news/title "Test2" 13194139534372
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;; true]}
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;; 1. Caused by datomic.impl.Exceptions$IllegalArgumentExceptionInfo
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;; :db.error/not-an-entity Unable to resolve entity: [:news/foobar
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;; "a"] in datom [[:news/foobar "a"] :news/foobar "b"]
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;; {:db/error :db.error/not-an-entity}
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;; @(d/transact conn [[:db/add #db/id[db.part/user -1] :news/foobar "a"]
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;; [:db/add #db/id[db.part/user -2] :news/zot "a"]])
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;; @(d/transact conn [[:db/add #db/id[db.part/user -1] :news/baz #db/id[db.part/user -2]]
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;; [:db/add #db/id[db.part/user -2] :news/baz #db/id[db.part/user -1]]])
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;; {:db-before datomic.db.Db@a0166706, :db-after datomic.db.Db@5d0d6a62, :tx-data [#datom[13194139534399 50 #inst "2016-07-20T04:45:19.553-00:00" 13194139534399 true] #datom[17592186045504 68 17592186045505 13194139534399 true] #datom[17592186045505 68 17592186045504 13194139534399 true]], :tempids {-9223350046622220289 17592186045504, -9223350046622220290 17592186045505}}
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;; @(d/transact conn [[:db/add [:news/foobar "a"] :news/foobar "b"]])
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;; @(d/transact conn [[:db/retract 17592186045505 68 17592186045504 13194139534399]])
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;; 1. Caused by datomic.impl.Exceptions$IllegalArgumentExceptionInfo
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;; :db.error/not-a-data-function Unable to resolve data function:
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;; {:news/foobar "a", :news/zot "a", :news/title "test"}
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;; {:db/error :db.error/not-a-data-function}
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;; 1. Caused by datomic.impl.Exceptions$IllegalArgumentExceptionInfo
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;; :db.error/entity-missing-db-id Missing :db/id
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;; {:input {:news/foobar "a", :news/zot "a", :news/title "test"}, :db/error :db.error/entity-missing-db-id}
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;; @(d/transact conn [{:news/foobar "a" :news/zot "a" :news/title "test"}])
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;; ;; 1. Caused by datomic.impl.Exceptions$IllegalStateExceptionInfo
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;; ;; :db.error/unique-conflict Unique conflict: :news/zot, value: a
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;; ;; already held by: 17592186045489 asserted for: 17592186045483
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;; ;; {:db/error :db.error/unique-conflict}
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;; @(d/transact conn [{:db/id [:news/foobar "a"] :news/zot "a" :news/title "test"}])
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;; ;; 1. Caused by datomic.impl.Exceptions$IllegalStateExceptionInfo
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;; ;; :db.error/unique-conflict Unique conflict: :news/zot, value: b
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;; ;; already held by: 17592186045492 asserted for: 17592186045483
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;; @(d/transact conn [
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;; {:db/id #db/id[db.part/user -1] :news/foobar "c" :news/zot "c"}])
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;; ;; {:db/id #db/id[db.part/user -1] :news/zot "a"} ])
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;; ;; 1. Caused by datomic.impl.Exceptions$IllegalStateExceptionInfo
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;; ;; :db.error/unique-conflict Unique conflict: :news/foobar, value: b
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;; ;; already held by: 17592186045478 asserted for: 1
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;; ;; {:db/error :db.error/unique-conflict}
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;; @(d/transact conn [[:db/add 17592186045478 :news/foobar "b"]])
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;; @(d/transact conn [[:db/add 17592186045478 :news/foobar "a"]])
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;; ;; Datomic accepts two different id-literals resolving to the same entid.
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(def txx #db/id[db.part/tx])
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(def x @(d/transact conn [[:db/add #db/id[db.part/user -1] :news/foobar "c"]
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[:db/add #db/id[db.part/user -2] :news/zot "c"]
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[:db/add txx :news/title "x"]
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[:db/add #db/id[db.part/tx -5] :news/title "x"]
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]))
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(def x @(d/transact conn [[:db/add #db/id[db.part/user -1] :news/baz #db/id[db.part/tx]]]))
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;; ;; 1. Caused by datomic.impl.Exceptions$IllegalArgumentExceptionInfo
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;; ;; :db.error/tempid-not-an-entity tempid used only as value in
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;; ;; transaction
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;; ;; {:db/error :db.error/tempid-not-an-entity}
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;; @(d/transact conn [[:db/add #db/id[db.part/user -1] :news/baz #db/id[db.part/user -3]]
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;; [:db/add #db/id[db.part/user -2] :news/baz #db/id[db.part/user -3]]])
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;; ;; 2. Unhandled java.util.concurrent.ExecutionException
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;; ;; java.lang.IndexOutOfBoundsException
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;; @(d/transact conn [[:db/add #db/id[db.part/user -1] :db/ident :news/zot]
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;; [:db/add #db/id[db.part/user -2] #db/id[db.part/user -1] "c"]])
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(vec
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(q '[:find ?added ?a ?v ?tx
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:where
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[17592186045427 ?a ?v ?tx ?added]
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;; [(>= ?e 17592186045427)]
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;; [(tx-ids ?log ?t1 ?t2) [?tx ...]]
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;; [(tx-data ?log ?tx) [[?e ?a ?v _ ?added]]]
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]
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(d/db conn)))
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;; [[true 63 "Test" 13194139534324]]
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(vec
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(q '[:find ?e ?added ?a ?v ?tx
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:in ?log ?t1 ?t2
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:where
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[(tx-ids ?log ?t1 ?t2) [?tx ...]]
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[(tx-data ?log ?tx) [[?e ?a ?v _ ?added]]]
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[(= ?e 17592186045427)]
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]
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(d/log conn) #inst "2013-08-01" #inst "2017-01-01"))
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[[17592186045427 false 63 "Rain Tomorrow" 13194139534324] [17592186045427 true 63 "Test" 13194139534324] [17592186045427 false 63 "Test" 13194139534325] [17592186045427 true 63 "Rain Tomorrow" 13194139534322]]
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;; [[17592186045427 false 63 "Rain Tomorrow" 13194139534324] [17592186045427 true 63 "Test" 13194139534324] [17592186045427 true 63 "Rain Tomorrow" 13194139534322]]
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@(d/transact conn [[:db/retract 17592186045427 :news/title "Test"]])
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(sort-by first (d/q '[:find ?a ?ident :where
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[?e ?a ?ident]
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[_ :db.install/attribute ?e]] (db/bootstrap-db)))
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(def x (db/bootstrap-db))
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(pprint (vec (map (juxt :e :a :v :tx :added) (filter #(= 13194139533312 (:tx %)) (d/datoms x :eavt)))))
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(pprint (sort (set (map (juxt :tx) (d/datoms x :eavt)))))
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(def tx0 13194139533312)
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(def tx1 13194139533366)
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(def tx2 13194139533368)
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(def tx3 13194139533375)
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(pprint
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(sort-by first (d/q '[:find ?e ?an ?v ?tx
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:in $ ?tx
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:where
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[?e ?a ?v ?tx true]
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[?a :db/ident ?an]
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] x tx3)))
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;; (d/datoms x :eavt))))
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;; 13194139533312
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59
src/datomish/schema.edn
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59
src/datomish/schema.edn
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[
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;; news
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{:db/id #db/id[:db.part/db]
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:db/ident :news/title
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/one
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:db/fulltext true
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:db/doc "A news story's title"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/foobar
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/one
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:db/unique :db.unique/identity
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:db/fulltext true
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:db/doc "A news story's foobar"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/zot
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/one
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:db/unique :db.unique/identity
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:db/fulltext true
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:db/doc "A news story's zot"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/baz
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:db/valueType :db.type/ref
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:db/cardinality :db.cardinality/one
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:db/doc "A news story's baz"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/url
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/one
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:db/doc "A news story's url"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/summary
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/one
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:db/doc "Automatically generated summary of a news story"
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:db.install/_attribute :db.part/db}
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{:db/id #db/id[:db.part/db]
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:db/ident :news/category
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:db/valueType :db.type/string
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:db/cardinality :db.cardinality/many
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:db/fulltext true
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:db/doc "Categories automatically set for a news story"
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:db.install/_attribute :db.part/db}
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]
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