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fix #354

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This commit is contained in:
Sean Corfield 2021-11-27 15:27:12 -08:00
parent 915857754d
commit 66fc3a68ee
3 changed files with 22 additions and 2 deletions
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2
CHANGELOG.md
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@ -3,6 +3,8 @@
* 2.1.next in progress
* Fix #371 by treating the operand of `NOT` as a nested expression (so it is parenthesized unless it is a simple value).
* Fix #370 by **always** parenthesizing the operand of `:nest`.
* Fix #354 by supporting `DROP COLUMN IF EXISTS` / `ADD COLUMN IF NOT EXISTS`.
* Update `build-clj` to v0.5.5.
* 2.1.818 -- 2021-10-04
* Fix #367 by supporting parameters in subexpressions around `IS NULL` / `IS NOT NULL` tests.

16
doc/clause-reference.md
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@ -43,9 +43,15 @@ If a single table name is provided, a single column
user=> (sql/format {:alter-table :fruit
:add-column [:id :int [:not nil]]})
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL"]
user=> (sql/format {:alter-table :fruit
:add-column [:id :int [:not nil] :if-not-exists]})
["ALTER TABLE fruit ADD COLUMN IF NOT EXISTS id INT NOT NULL"]
user=> (sql/format {:alter-table :fruit
:drop-column :ident})
["ALTER TABLE fruit DROP COLUMN ident"]
user=> (sql/format {:alter-table :fruit
:drop-column [:if-exists :ident]})
["ALTER TABLE fruit DROP COLUMN IF EXISTS ident"]
user=> (sql/format {:alter-table :fruit
:modify-column [:id :int :unsigned nil]})
["ALTER TABLE fruit MODIFY COLUMN id INT UNSIGNED NULL"]
@ -63,6 +69,16 @@ user=> (sql/format {:alter-table [:fruit
{:add-column [:id :int [:not nil]]}
{:drop-column :ident}]})
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL, DROP COLUMN ident"]
user=> (sql/format {:alter-table [:fruit
{:add-column [:id :int [:not nil]]}
{:add-column [:name [:varchar 32]]}
{:drop-column :ident}
{:modify-column [:appearance :text]}]})
["ALTER TABLE fruit ADD COLUMN id INT NOT NULL, ADD COLUMN name VARCHAR(32), DROP COLUMN ident, MODIFY COLUMN appearance TEXT"]
user=> (sql/format {:alter-table [:fruit
{:add-column [:id :int [:not nil] :if-not-exists]}
{:drop-column [:if-exists :ident]}]})
["ALTER TABLE fruit ADD COLUMN IF NOT EXISTS id INT NOT NULL, DROP COLUMN IF EXISTS ident"]
```
As can be seen above, `:add-column` and `:modify-column`

6
src/honey/sql.cljc
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@ -813,7 +813,9 @@
")")])
(defn- format-add-item [k spec]
[(str (sql-kw k) " " (format-single-column spec))])
(if (contains? #{:if-not-exists 'if-not-exists} (last spec))
[(str (sql-kw k) " " (sql-kw :if-not-exists) " " (format-single-column (butlast spec)))]
[(str (sql-kw k) " " (format-single-column spec))]))
(defn- format-rename-item [k [x y]]
[(str (sql-kw k) " " (format-entity x) " TO " (format-entity y))])
@ -849,7 +851,7 @@
and removed."
(atom {:alter-table #'format-alter-table
:add-column #'format-add-item
:drop-column #'format-selector
:drop-column #'format-drop-items
:modify-column #'format-add-item
:rename-column #'format-rename-item
;; so :add-index works with both [:index] and [:unique]