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Example queries and rules for working with the Datomic mbrainz example database
Is this still possible, or do you have to jump through some hoops? :) Can't find any bin/datomic
executables in the new dev-local install.
When trying to restore-db on OS X 10.11.6 with datomic-free-0.9.5390
bin/datomic restore-db file:///Users/piotrkosinski/Projects/mbrainz-1968-1973 datomic:free://localhost:4334/mbrainz-1968-1973
got this error
java.lang.NumberFormatException: For input string: ".DS_Store"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
at java.lang.Long.parseLong(Long.java:578)
at java.lang.Long.parseLong(Long.java:631)
at datomic.backup$describe_backups$fn__9012.invoke(backup.clj:531)
at clojure.core$mapv$fn__6953.invoke(core.clj:6627)
at clojure.lang.PersistentVector.reduce(PersistentVector.java:341)
at clojure.core$reduce.invokeStatic(core.clj:6544)
at clojure.core$mapv.invokeStatic(core.clj:6618)
at clojure.core$mapv.invoke(core.clj:6618)
at datomic.backup$describe_backups.invokeStatic(backup.clj:531)
at datomic.backup$describe_backups.invoke(backup.clj:522)
at datomic.backup$latest_t.invokeStatic(backup.clj:627)
at datomic.backup$latest_t.invoke(backup.clj:625)
at datomic.backup$require_latest_t.invokeStatic(backup.clj:632)
at datomic.backup$require_latest_t.invoke(backup.clj:630)
at datomic.backup_cli$restore.invokeStatic(backup_cli.clj:51)
at datomic.backup_cli$restore.invoke(backup_cli.clj:43)
at clojure.lang.Var.invoke(Var.java:379)
at clojure.lang.AFn.applyToHelper(AFn.java:154)
at clojure.lang.Var.applyTo(Var.java:700)
at clojure.core$apply.invokeStatic(core.clj:646)
at clojure.core$apply.invoke(core.clj:641)
at datomic.require$require_and_run.invokeStatic(require.clj:22)
at datomic.require$require_and_run.doInvoke(require.clj:17)
at clojure.lang.RestFn.invoke(RestFn.java:423)
at datomic$_main$fn__28.invoke(datomic.clj:150)
at datomic$_main.invokeStatic(datomic.clj:149)
at datomic$_main.doInvoke(datomic.clj:142)
at clojure.lang.RestFn.invoke(RestFn.java:436)
at clojure.lang.Var.invoke(Var.java:388)
at clojure.lang.AFn.applyToHelper(AFn.java:160)
at clojure.lang.Var.applyTo(Var.java:700)
at clojure.core$apply.invokeStatic(core.clj:646)
at clojure.main$main_opt.invokeStatic(main.clj:314)
at clojure.main$main_opt.invoke(main.clj:310)
at clojure.main$main.invokeStatic(main.clj:421)
at clojure.main$main.doInvoke(main.clj:384)
at clojure.lang.RestFn.invoke(RestFn.java:551)
at clojure.lang.Var.invoke(Var.java:419)
at clojure.lang.AFn.applyToHelper(AFn.java:186)
at clojure.lang.Var.applyTo(Var.java:700)
at clojure.main.main(main.java:37)
Removing .DS_Store file from Projects/mbrainz-1968-1973 folder doesn't fix the problem.
I've tried both the latest backup and the one from 2014-11-17.
There is not a single entity referenced from :release/abstractRelease
[:find ?artist :in $ :where [_ :abstractRelease/artists ?artist] ]
returns empty set
[:find ?name :in $ :where [_ :abstractRelease/name ?name] ]
too
Should it be deleted from the schema then?
The :artist/type attribute has doc copied from the :artist/name attribute - "The artist's name for use in sorting, e.g. Beatles, The".
Most likely :artist/type is some enum, right, with values :artist.type/person, and some others?
This docstring for :artist/type
seems nonsensical. Appears to be copied version of :artist/sortName
attribute's docstring. Guessing it should be something like, "Enum, one of: ..."
Line 66 in e0e810e
For some reasons i (as a datomic noob) can't restore tutorial db
~/dist/datomic-pro-0.9.5130/bin/datomic restore-db file:///home/leuser/work/clojure/tutorials/dod/mbrainz-1968-1973/ datomic:dev://localhost:4334/mbrainz-1968-1973
Copied 0 segments, skipped 0 segments.
Copied 631 segments, skipped 0 segments.
Copied 935 segments, skipped 0 segments.
java.util.concurrent.ExecutionException: java.util.concurrent.ExecutionException: clojure.lang.ExceptionInfo: :restore/read-failed Unable to read 546abffa-c4cf-461e-aea5-2f0ec83c7de3_00000000000000A {:db/error :restore/read-failed, :key "546abffa-c4cf-461e-aea5-2f0ec83c7de3_00000000000000A"}
Any chance you could update this repo with the updated code referenced by Stuart in the video Simplifying ETL with Clojure and Datomic - Stuart Halloway?
In section Running the Queries, there's a typo (probably from previous version of page): '(e.g. the string "Lupe Fiasco" in the example above).'
It should be: '(e.g. the string "Janis Joplin" in the example above).'
In section Fulltext the text description 'Let's find all of the tracks with the word "nevermore" in the title.' says "nevermore" but "always" is used later in text and in the query ('Query args' subsection).
In section Graph walk the text description 'Let's find Paul McCartney's collaboration network to a depth of 2.' says "Paul McCartney" but later in text and in the query "George Harrison" is used.
Importing the mbrainz-file fails with following stacktrace:
Caused by: java.io.FileNotFoundException: Could not locate datomic/process_monitor__init.class or datomic/process_monitor.clj on classpath:
at clojure.lang.RT.load(RT.java:443)
at clojure.lang.RT.load(RT.java:411)
at clojure.core$load$fn__5066.invoke(core.clj:5641)
at clojure.core$load.doInvoke(core.clj:5640)
at clojure.lang.RestFn.invoke(RestFn.java:408)
at clojure.core$load_one.invoke(core.clj:5446)
at clojure.core$load_lib$fn__5015.invoke(core.clj:5486)
at clojure.core$load_lib.doInvoke(core.clj:5485)
at clojure.lang.RestFn.applyTo(RestFn.java:142)
at clojure.core$apply.invoke(core.clj:626)
at clojure.core$load_libs.doInvoke(core.clj:5524)
at clojure.lang.RestFn.applyTo(RestFn.java:137)
at clojure.core$apply.invoke(core.clj:626)
at clojure.core$require.doInvoke(core.clj:5607)
at clojure.lang.RestFn.invoke(RestFn.java:551)
at datomic.backup_cli$loading__4958__auto__.invoke(backup_cli.clj:1)
at datomic.backup_cli__init.load(Unknown Source)
at datomic.backup_cli__init.<clinit>(Unknown Source)
... 34 more
It works with datomic free 0.9.5153.
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