honeysql/src/readme.clj
2020-09-25 15:31:29 -07:00

587 lines
11 KiB
Clojure

(ns readme (:require [seancorfield.readme]))
(seancorfield.readme/defreadme readme-27
(require '[honey.sql :as sql]
'[honey.sql.helpers :refer :all :as helpers])
)
(seancorfield.readme/defreadme readme-34
(def sqlmap {:select [:a :b :c]
:from [:foo]
:where [:= :f.a "baz"]})
)
(seancorfield.readme/defreadme readme-46
(sql/format sqlmap)
=> ["SELECT a, b, c FROM foo WHERE f.a = ?" "baz"]
)
(seancorfield.readme/defreadme readme-67
(def q-sqlmap {:select [:foo/a :foo/b :foo/c]
:from [:foo]
:where [:= :foo/a "baz"]})
(sql/format q-sqlmap)
=> ["SELECT foo.a, foo.b, foo.c FROM foo WHERE foo.a = ?" "baz"]
)
(seancorfield.readme/defreadme readme-81
(-> (select :a :b :c)
(from :foo)
(where [:= :f.a "baz"]))
)
(seancorfield.readme/defreadme readme-89
(= (-> (select :*) (from :foo))
(-> (from :foo) (select :*)))
=> true
)
(seancorfield.readme/defreadme readme-97
(-> sqlmap (select :d))
=> '{:from [:foo], :where [:= :f.a "baz"], :select [:a :b :c :d]}
)
(seancorfield.readme/defreadme readme-104
(-> sqlmap
(dissoc :select)
(select :*)
(where [:> :b 10])
sql/format)
=> ["SELECT * FROM foo WHERE (f.a = ?) AND (b > ?)" "baz" 10]
)
(seancorfield.readme/defreadme readme-115
(-> (select :*)
(from :foo)
(where [:= :a 1] [:< :b 100])
sql/format)
=> ["SELECT * FROM foo WHERE (a = ?) AND (b < ?)" 1 100]
)
(seancorfield.readme/defreadme readme-126
(-> (select :a [:b :bar] :c [:d :x])
(from [:foo :quux])
(where [:= :quux.a 1] [:< :bar 100])
sql/format)
=> ["SELECT a, b AS bar, c, d AS x FROM foo quux WHERE (quux.a = ?) AND (bar < ?)" 1 100]
)
(seancorfield.readme/defreadme readme-143
(-> (insert-into :properties)
(columns :name :surname :age)
(values
[["Jon" "Smith" 34]
["Andrew" "Cooper" 12]
["Jane" "Daniels" 56]])
sql/format)
=> [#sql/regularize
"INSERT INTO properties (name, surname, age)
VALUES (?, ?, ?), (?, ?, ?), (?, ?, ?)"
"Jon" "Smith" 34 "Andrew" "Cooper" 12 "Jane" "Daniels" 56]
)
(seancorfield.readme/defreadme readme-161
(-> (insert-into :properties)
(values [{:name "John" :surname "Smith" :age 34}
{:name "Andrew" :surname "Cooper" :age 12}
{:name "Jane" :surname "Daniels" :age 56}])
sql/format)
=> [#sql/regularize
"INSERT INTO properties (name, surname, age)
VALUES (?, ?, ?), (?, ?, ?), (?, ?, ?)"
"John" "Smith" 34
"Andrew" "Cooper" 12
"Jane" "Daniels" 56]
)
(seancorfield.readme/defreadme readme-179
(let [user-id 12345
role-name "user"]
(-> (insert-into :user_profile_to_role)
(values [{:user_profile_id user-id
:role_id (-> (select :id)
(from :role)
(where [:= :name role-name]))}])
sql/format))
=> [#sql/regularize
"INSERT INTO user_profile_to_role (user_profile_id, role_id)
VALUES (?, (SELECT id FROM role WHERE name = ?))"
12345
"user"]
)
(seancorfield.readme/defreadme readme-196
(-> (select :*)
(from :foo)
(where [:in :foo.a (-> (select :a) (from :bar))])
sql/format)
=> ["SELECT * FROM foo WHERE (foo.a in (SELECT a FROM bar))"]
)
(seancorfield.readme/defreadme readme-208
(-> (insert-into :comp_table)
(columns :name :comp_column)
(values
[["small" (composite 1 "inch")]
["large" (composite 10 "feet")]])
sql/format)
=> [#sql/regularize
"INSERT INTO comp_table (name, comp_column)
VALUES (?, (?, ?)), (?, (?, ?))"
"small" 1 "inch" "large" 10 "feet"]
)
(seancorfield.readme/defreadme readme-226
(-> (helpers/update :films)
(sset {:kind "dramatic"
:watched (sql/call :+ :watched 1)})
(where [:= :kind "drama"])
sql/format)
=> [#sql/regularize
"UPDATE films SET kind = ?, watched = (watched + ?)
WHERE kind = ?"
"dramatic"
1
"drama"]
)
(seancorfield.readme/defreadme readme-251
(-> (delete-from :films)
(where [:<> :kind "musical"])
sql/format)
=> ["DELETE FROM films WHERE kind <> ?" "musical"]
)
(seancorfield.readme/defreadme readme-260
(-> (delete [:films :directors])
(from :films)
(join :directors [:= :films.director_id :directors.id])
(where [:<> :kind "musical"])
sql/format)
=> [#sql/regularize
"DELETE films, directors
FROM films
INNER JOIN directors ON films.director_id = directors.id
WHERE kind <> ?"
"musical"]
)
(seancorfield.readme/defreadme readme-276
(-> (truncate :films)
sql/format)
=> ["TRUNCATE films"]
)
(seancorfield.readme/defreadme readme-286
(sql/format {:union [(-> (select :*) (from :foo))
(-> (select :*) (from :bar))]})
=> ["SELECT * FROM foo UNION SELECT * FROM bar"]
)
(seancorfield.readme/defreadme readme-296
(-> (select :%count.*) (from :foo) sql/format)
=> ["SELECT count(*) FROM foo"]
)
(seancorfield.readme/defreadme readme-300
(-> (select :%max.id) (from :foo) sql/format)
=> ["SELECT max(id) FROM foo"]
)
(seancorfield.readme/defreadme readme-311
(-> (select :id)
(from :foo)
(where [:= :a :?baz])
(sql/format :params {:baz "BAZ"}))
=> ["SELECT id FROM foo WHERE a = ?" "BAZ"]
)
(seancorfield.readme/defreadme readme-324
(def call-qualify-map
(-> (select [[:foo :bar]] [[:raw "@var := foo.bar"]])
(from :foo)
(where [:= :a (???/param :baz)] [:= :b [:inline 42]])))
)
(seancorfield.readme/defreadme readme-330
call-qualify-map
=> '{:where [:and [:= :a ???/param :baz] [:= :b [:inline 42]]]
:from (:foo)
:select [[[:foo :bar]] [[:raw "@var := foo.bar"]]]}
)
(seancorfield.readme/defreadme readme-336
(sql/format call-qualify-map :??? {:baz "BAZ"})
=> ["SELECT foo(bar), @var := foo.bar FROM foo WHERE (a = ?) AND (b = 42)" "BAZ"]
)
(seancorfield.readme/defreadme readme-346
(-> (insert-into :sample)
(values [{:location [:ST_SetSRID
[:ST_MakePoint 0.291 32.621]
[:cast 4325 :integer]]}])
(sql/format))
=> [#sql/regularize
"INSERT INTO sample (location)
VALUES (ST_SetSRID(ST_MakePoint(?, ?), CAST(? AS integer)))"
0.291 32.621 4326]
)
(seancorfield.readme/defreadme readme-371
(-> (select :*)
(from :foo)
(where [:< :expired_at (sql/raw ["now() - '" 5 " seconds'"])])
(sql/format {:foo 5}))
=> ["SELECT * FROM foo WHERE expired_at < now() - '? seconds'" 5]
)
(seancorfield.readme/defreadme readme-379
(-> (select :*)
(from :foo)
(where [:< :expired_at (sql/raw ["now() - '" #sql/param :t " seconds'"])])
(sql/format {:t 5}))
=> ["SELECT * FROM foo WHERE expired_at < now() - '? seconds'" 5]
)
(seancorfield.readme/defreadme readme-396
(-> (select :foo.a)
(from :foo)
(where [:= :foo.a "baz"])
(sql/format {:dialect :mysql}))
=> ["SELECT `foo`.`a` FROM `foo` WHERE `foo`.`a` = ?" "baz"]
)
(seancorfield.readme/defreadme readme-412
(-> (select :foo.a)
(from :foo)
(where [:= :foo.a "baz"])
(lock :mode :update)
(sql/format))
=> ["SELECT foo.a FROM foo WHERE foo.a = ? FOR UPDATE" "baz"]
)
(seancorfield.readme/defreadme readme-424
(sql/format
{:select [:f.foo-id :f.foo-name]
:from [[:foo-bar :f]]
:where [:= :f.foo-id 12345]}
:allow-dashed-names? true
:quoting :ansi)
=> ["SELECT \"f\".\"foo-id\", \"f\".\"foo-name\" FROM \"foo-bar\" \"f\" WHERE \"f\".\"foo-id\" = ?" 12345]
)
(seancorfield.readme/defreadme readme-438
(def big-complicated-map
(-> (select :f.* :b.baz :c.quux [:b.bla "bla-bla"]
[[:now]] [[:raw "@x := 10"]])
(modifiers :distinct) ; this is not implemented yet
(from [:foo :f] [:baz :b])
(join :draq [:= :f.b :draq.x])
(left-join [:clod :c] [:= :f.a :c.d])
(right-join :bock [:= :bock.z :c.e])
(where [:or
[:and [:= :f.a "bort"] [:not= :b.baz (???/param :param1)]]
[:< 1 2 3]
[:in :f.e [1 (???/param :param2) 3]]
[:between :f.e 10 20]])
(group :f.a :c.e)
(having [:< 0 :f.e])
(order-by [:b.baz :desc] :c.quux [:f.a :nulls-first])
(limit 50)
(offset 10)))
)
(seancorfield.readme/defreadme readme-458
big-complicated-map
=> {:select [:f.* :b.baz :c.quux [:b.bla "bla-bla"]
[[:now]] [[:raw "@x := 10"]]]
:modifiers [:distinct]
:from [[:foo :f] [:baz :b]]
:join [:draq [:= :f.b :draq.x]]
:left-join [[:clod :c] [:= :f.a :c.d]]
:right-join [:bock [:= :bock.z :c.e]]
:where [:or
[:and [:= :f.a "bort"] [:not= :b.baz (???/param :param1)]]
[:< 1 2 3]
[:in :f.e [1 (????/param :param2) 3]]
[:between :f.e 10 20]]
:group-by [:f.a :c.e]
:having [:< 0 :f.e]
:order-by [[:b.baz :desc] :c.quux [:f.a :nulls-first]]
:limit 50
:offset 10}
)
(seancorfield.readme/defreadme readme-478
(sql/format big-complicated-map {:param1 "gabba" :param2 2})
=> [#sql/regularize
"SELECT DISTINCT f.*, b.baz, c.quux, b.bla AS bla_bla, now(), @x := 10
FROM foo f, baz b
INNER JOIN draq ON f.b = draq.x
LEFT JOIN clod c ON f.a = c.d
RIGHT JOIN bock ON bock.z = c.e
WHERE ((f.a = ? AND b.baz <> ?)
OR (? < ? AND ? < ?)
OR (f.e in (?, ?, ?))
OR f.e BETWEEN ? AND ?)
GROUP BY f.a, c.e
HAVING ? < f.e
ORDER BY b.baz DESC, c.quux, f.a NULLS FIRST
LIMIT ?
OFFSET ? "
"bort" "gabba" 1 2 2 3 1 2 3 10 20 0 50 10]
)
(seancorfield.readme/defreadme readme-497
;; Printable and readable
(= big-complicated-map (read-string (pr-str big-complicated-map)))
=> true
)
(seancorfield.readme/defreadme readme-509
(defmethod fmt/fn-handler "betwixt" [_ field lower upper]
(str (fmt/to-sql field) " BETWIXT "
(fmt/to-sql lower) " AND " (fmt/to-sql upper)))
(-> (select :a) (where [:betwixt :a 1 10]) sql/format)
=> ["SELECT a WHERE a BETWIXT ? AND ?" 1 10]
)
(seancorfield.readme/defreadme readme-520
;; Takes a MapEntry of the operator & clause data, plus the entire SQL map
(defmethod fmt/format-clause :foobar [[op v] sqlmap]
(str "FOOBAR " (fmt/to-sql v)))
)
(seancorfield.readme/defreadme readme-525
(sql/format {:select [:a :b] :foobar :baz})
=> ["SELECT a, b FOOBAR baz"]
)
(seancorfield.readme/defreadme readme-529
(require '[honeysql.helpers :refer [defhelper]])
;; Defines a helper function, and allows 'build' to recognize your clause
(defhelper foobar [m args]
(assoc m :foobar (first args)))
)
(seancorfield.readme/defreadme readme-536
(-> (select :a :b) (foobar :baz) sql/format)
=> ["SELECT a, b FOOBAR baz"]
)
(seancorfield.readme/defreadme readme-544
(fmt/register-clause! :foobar 110)
)