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Immutable database and Datalog query engine for Clojure, ClojureScript and JS
fmn 2018-05-26T03:06:58.000061Z
Anybody knows why this doesn't work?
(let [conn (d/create-conn
{:user/name {:db/unique :db.unique/identity}})
tempid (d/tempid :db.part/user)
tx-data [[:db/add tempid :user/name "foobar"]
[:db.fn/cas tempid :foo/bar nil true]]]
(-> @conn
(d/with tx-data)
(:db-after)
(d/pull ['*] [:user/name "foobar"])))
:foo/bar key: {:db/id 1, :user/name "foobar"}
Inspecting the tx-report yields:
{:db-before {},
:db-after {-1000064 :foo/bar, 1 :user/name},
:tx-data
[#datascript/Datom [1 :user/name "foobar" 536870913 true]
#datascript/Datom [-1000064 :foo/bar true 536870913 true]],
:tempids {-1000064 1, :db/current-tx 536870913},
:tx-meta nil}
tempid with hard-coded positive integer e.g 1, it yields the correct result: {:db/id 1, :foo/bar true, :user/name "foobar"}
2018-05-26T07:22:15.000006Z
@funyako.funyao156 please create an issue. I’ll take a look when I have time