"O Deep Thought computer," he said, "the task we have designed you to perform is this. We want you to tell us...." he paused, "The Answer."
"The Answer?" said Deep Thought. "The Answer to what?"
"Life!" urged Fook.
"The Universe!" said Lunkwill.
"Everything!" they said in chorus.
Fook is a collection of functions that enable you to work with Datomic more easily.
The fook.query namespace enables you to easily manipulate queries.
((juxt identity meta)
(fook.query/normalise-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]))
=>
[{:find ([?name ...]),
:in ($ ?artist),
:where ([?release :release/name ?name]
[?release :release/artists ?artist])}
{:fook.query/type :seq, :fook.query/order [:find :in :where]}]
((juxt identity meta)
(fook.query/normalise-query
'{:find [[?name ...]]
:in [$ ?artist]
:where [[?release :release/name ?name]
[?release :release/artists ?artist]]}))
=>
[{:find [[?name ...]],
:in [$ ?artist],
:where [[?release :release/name ?name]
[?release :release/artists ?artist]]}
{:fook.query/type :map}]
(fook.query/denormalise-query
(fook.query/normalise-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]))
=>
[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
(fook.query/get-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]] :in)
=>
($ ?artist)
(fook.query/assoc-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
:in
'[$])
=>
[:find [?name ...]
:in $
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
(fook.query/assoc-query
'[:find (count ?name)
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
:with
'[?artist])
=>
[:find (count ?name)
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]
:with ?artist]
(fook.query/dissoc-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]] :in)
=>
[:find [?name ...]
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
(fook.query/update-query
'[:find [?name ...]
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
:find
(comp vector ffirst))
=>
[:find ?name
:in $ ?artist
:where
[?release :release/name ?name]
[?release :release/artists ?artist]]
The fook.tx namespace makes working with transactions easier.
(fook.tx/with-tempid
datomic.api/tempid
(fook.tx/add-id {:foo "bar"}
:db.part/user))
=>
{:foo "bar",
:db/id #db/id[:db.part/user -1000048]}
(fook.tx/with-tempid
datomic.api/tempid
(fook.tx/add-id {:foo "bar"
:db/id (datomic.api/tempid :db.part/user -1)}
:db.part/user))
=>
{:foo "bar",
:db/id #db/id[:db.part/user -1]}
(fook.tx/with-tempid
datomic.api/tempid
(fook.tx/add-id {:foo "bar"
:db/id [:db.part/user -2]}
nil))
=>
{:foo "bar",
:db/id #db/id[:db.part/user -2]}
(fook.tx/with-tempid
datomic.api/tempid
(fook.tx/add-id {:foo "bar"
:db/id [:db.part/user]}
nil))
=>
{:foo "bar", :db/id #db/id[:db.part/user -1000049]}
(fook.tx/with-entity
datomic.api/entity
(doall (fook.tx/get-attrs db (take 10 (d/datoms db :eavt)))))
=>
([0 :db/ident :db.part/db 13194139533312 true]
[0 :db.install/partition 0 13194139533366 true]
[0 :db.install/partition 3 13194139533366 true]
[0 :db.install/partition 4 13194139533366 true]
[0 :db.install/valueType 20 13194139533366 true]
[0 :db.install/valueType 21 13194139533366 true]
[0 :db.install/valueType 22 13194139533366 true]
[0 :db.install/valueType 23 13194139533366 true]
[0 :db.install/valueType 24 13194139533366 true]
[0 :db.install/valueType 25 13194139533366 true])The fook.schema namespace provides a shorthand way of defining schemas.
(fook.tx/with-tempid
datomic.api/tempid
(fook.schema/schema
[[:foo :string :index]
[:foo/bar :ref :many]
[:foo/baz :uuid :identity]]
(fook.schema/attr-ns :ns
[:foo :string "This is a string" :index]
[:foo/bar :ref :component]
[:foo/baz :uuid :unique])))
=>
({:db/cardinality :db.cardinality/one,
:db.install/_attribute :db.part/db,
:db/ident :ns.foo/baz,
:db/unique :db.unique/value,
:db/valueType :db.type/uuid,
:db/id {:part :db.part/db, :idx -1000037}}
{:db/cardinality :db.cardinality/one,
:db.install/_attribute :db.part/db,
:db/ident :ns.foo/bar,
:db/isComponent true,
:db/valueType :db.type/ref,
:db/id {:part :db.part/db, :idx -1000036}}
{:db/cardinality :db.cardinality/one,
:db.install/_attribute :db.part/db,
:db/ident :ns/foo,
:db/doc "This is a string",
:db/index true,
:db/valueType :db.type/string,
:db/id {:part :db.part/db, :idx -1000032}}
{:db/cardinality :db.cardinality/one,
:db.install/_attribute :db.part/db,
:db/ident :foo,
:db/index true,
:db/valueType :db.type/string,
:db/id {:part :db.part/db, :idx -1000033}}
{:db/cardinality :db.cardinality/many,
:db.install/_attribute :db.part/db,
:db/ident :foo/bar,
:db/valueType :db.type/ref,
:db/id {:part :db.part/db, :idx -1000034}}
{:db/cardinality :db.cardinality/one,
:db.install/_attribute :db.part/db,
:db/ident :foo/baz,
:db/unique :db.unique/identity,
:db/valueType :db.type/uuid,
:db/id {:part :db.part/db, :idx -1000035}})
The fook.unify namespace provides multiple ways of unifying the
various datomic data structures with each other.
(fook.unify/unify-result
'[:find ?artist-name ?release-name
:where [?release :release/name ?release-name]
[?release :release/artists ?artist]
[?artist :artist/name ?artist-name]]
#{["George Jones" "With Love"]
["Shocking Blue" "Hello Darkness / Pickin' Tomatoes"]
["Junipher Greene" "Friendship"]
...}
'{:name ?artist-name
:release ?release-name})
=>
({:name "George Jones", :release "With Love"}
{:name "Shocking Blue", :release "Hello Darkness / Pickin' Tomatoes"}
{:name "Junipher Greene", :release "Friendship"}
...)
(fook.unify/unify-query
'[:find ?x ?y
:where
[?p :parent/x ?x]
[?p :parent/y ?z]
[?a :ancestor/x ?z]
[?a :ancestor/y ?y]]
[[1 :parent/x :a 3 true]
[1 :parent/y :b 3 true]
[2 :parent/x :c 3 true]
[2 :parent/y :d 3 true]])
=>
#{{?p 2, ?x :c, ?z :d}
{?p 1, ?x :a, ?z :b}}
Copyright © 2016 Bahul Neel Upadhyaya
Distributed under the Eclipse Public License either version 1.0 or (at your option) any later version.