honey.sql — com.github.seancorfield/honeysql 2.6.1230

Primary API for HoneySQL 2.x.

This includes the format function -- the primary entry point -- as well as several public formatters that are intended to help users extend the supported syntax.

In addition, functions to extend HoneySQL are also provided here:

• clause-order -- returns the current clause priority ordering; intended as aid when registering new clauses.
• format-dsl -- intended to format SQL statements; returns a vector containing a SQL string followed by parameter values.
• format-entity -- intended to format SQL entities; returns a string representing the SQL entity.
• format-expr -- intended to format SQL expressions; returns a vector containing a SQL string followed by parameter values.
• format-expr-list -- intended to format a list of SQL expressions; returns a pair comprising: a sequence of SQL expressions (to be join with a delimiter) and a sequence of parameter values.
• register-clause! -- register a new statement/clause formatter.
• register-fn! -- register a new function call (or special syntax) formatter.
• register-op! -- register a new operator formatter.
• set-dialect! -- set the default dialect to be used for formatting, and optionally set a global :quoted option.
• sql-kw -- turns a Clojure keyword (or symbol) into SQL code (makes it uppercase and replaces - with space).

->numbered clj/s

(->numbered v)

->numbered-param clj/s

(->numbered-param k)

add-clause-before clj/s

(add-clause-before order clause before)

Low-level helper just to insert a new clause.

If the clause is already in the list, this moves it to the end.

clause-body clj/s

(clause-body clause)

If the current DSL expression being formatted contains the specified clause (as a keyword or symbol), returns that clause's value.

clause-order clj/s

(clause-order)

Return the current order that known clauses will be applied when formatting a data structure into SQL. This may be useful when you are figuring out the before argument of register-clause! as well as for debugging new clauses you have registered.

contains-clause? clj/s

(contains-clause? clause)

Returns true if the current DSL expression being formatted contains the specified clause (as a keyword or symbol).

format clj/s

(format data)

(format data opts)

(format data k v & {:as opts})

Turn the data DSL into a vector containing a SQL string followed by any parameter values that were encountered in the DSL structure.

This is the primary API for HoneySQL and handles dialects, quoting, and named parameters.

If the data DSL is a hash map, it will be treated as a SQL statement and formatted via format-dsl, otherwise it will be treated as a SQL expression and formatted via format-expr.

format accepts options as either a single hash map argument or as named arguments (alternating keys and values). If you are using Clojure 1.11 (or later) you can mix'n'match, providing some options as named arguments followed by other options in a hash map.

format-dsl clj/s

(format-dsl statement-map)

(format-dsl statement-map {:keys [aliased nested pretty]})

Given a hash map representing a SQL statement and a hash map of options, return a vector containing a string -- the formatted SQL statement -- followed by any parameter values that SQL needs.

This is intended to be used when writing your own formatters to extend the DSL supported by HoneySQL.

format-entity clj/s

(format-entity e)

(format-entity e {:keys [aliased drop-ns]})

Given a simple SQL entity (a keyword or symbol -- or string), return the equivalent SQL fragment (as a string -- no parameters).

Handles quoting, splitting at / or ., replacing - with _ etc.

format-expr clj/s

(format-expr expr)

(format-expr expr {:keys [nested record] :as opts})

Given a data structure that represents a SQL expression and a hash map of options, return a vector containing a string -- the formatted SQL statement -- followed by any parameter values that SQL needs.

This is intended to be used when writing your own formatters to extend the DSL supported by HoneySQL.

format-expr-list clj/s

(format-expr-list exprs)

(format-expr-list exprs opts)

Given a sequence of expressions represented as data, return a pair where the first element is a sequence of SQL fragments and the second element is a sequence of parameters. The caller should join the SQL fragments with whatever appropriate delimiter is needed and then return a vector whose first element is the complete SQL string and whose subsequent elements are the parameters:

(let [[sqls params] (format-expr-list data opts)] (into [(str/join delim sqls)] params))

This is intended to be used when writing your own formatters to extend the DSL supported by HoneySQL.

format-interspersed-expr-list clj/s

(format-interspersed-expr-list args)

(format-interspersed-expr-list args opts)

If there are inline (SQL) keywords, use them to join the formatted expressions together. Otherwise behaves like plain format-expr-list.

This allows for argument lists like:

• [:overlay :foo :*placing :?subs :*from 3 :*for 4]
• [:trim :*leading-from :bar]

formatv clj macro

(formatv syms sql & opts)

Treats the specified vector of symbols as variables to be substituted in the symbolic SQL expression.

(let [x 42 y 13] (formatv [y] '{select * from table where (= x y)}))

=> ["SELECT * FROM table WHERE (x = ?)" 13]

get-dialect clj/s

(get-dialect dialect)

Given a dialect name (keyword), return its definition. Returns nil if the dialect is unknown.

ignore-respect-nulls clj/s

(ignore-respect-nulls k [x])

map= clj/s

(map= data)

Given a hash map, return a condition structure that can be used in a WHERE clause to test for equality:

{:select :* :from :table :where (sql/map= {:id 1})}

will produce: SELECT * FROM table WHERE id = ? (and a parameter of 1)

register-clause! clj/s

(register-clause! clause formatter before)

Register a new clause formatter. If before is nil, the clause is added to the end of the list of known clauses, otherwise it is inserted immediately prior to that clause.

New clauses are registered in the base order and the current order so that any dialect selections are able to include them while still working predictably from the base order. Caveat: that means if you register a new clause before a clause that is ordered differently in different dialects, your new clause may also end up in a different place. The only clause so far where that would matter is :set which differs in MySQL.

Use clause-order to see the full ordering of existing clauses.

register-dialect! clj/s

(register-dialect! dialect dialect-spec)

Register a new dialect. Accepts a dialect name (keyword) and a hash map that must contain at least a :quoted key whose value is a unary function that accepts a string and returns it quoted per the dialect.

It may also contain a :clause-order-fn key whose value is a unary function that accepts a list of SQL clauses (keywords) in order of precedence and returns an updated list of SQL clauses in order. It may use add-clause-before to achieve this. Currently, the only dialect that does this is MySQL, whose SET clause (:set) has a non-standard precedence, compared to other SQL dialects.

register-fn! clj/s

(register-fn! function formatter)

Register a new function (as special syntax). The formatter is either a keyword, meaning that this new function should use the same syntax as an existing function, or a function of two arguments that generates a SQL string and parameters (as a vector). The two arguments are the name of the function (as a keyword) and a sequence of the arguments from the DSL.

register-op! clj/s

(register-op! op & {:keys [ignore-nil]})

Register a new infix operator. All operators are variadic and may choose to ignore nil arguments (this can make it easier to programmatically construct the DSL).

registered-clause? clj/s

(registered-clause? clause)

Return true if the clause is known to HoneySQL.

registered-dialect? clj/s

(registered-dialect? dialect)

Return true if the dialect is known to HoneySQL.

registered-fn? clj/s

(registered-fn? function)

Return true if the function is known to HoneySQL.

registered-op? clj/s

(registered-op? op)

Return true if the operator is known to HoneySQL.

set-dialect! clj/s

(set-dialect! dialect & {:keys [quoted]})

Set the default dialect for formatting.

Can be: :ansi (the default), :mysql, :oracle, or :sqlserver.

Can optionally accept :quoted true (or :quoted false) to set the default global quoting strategy. Without :quoted, the default global quoting strategy will be reset (only quoting unusual entity names).

Note that calling set-options! can override this default.

Dialects are always applied to the base order to create the current order.

set-options! clj/s

(set-options! opts)

Set default values for any or all of the following options:

• :checking
• :inline
• :numbered
• :quoted
• :quoted-always
• :quoted-snake Note that calling set-dialect! can override the default for :quoted.

sql-kw clj/s

(sql-kw k)

Given a keyword, return a SQL representation of it as a string.

A keyword whose name begins with a single quote is left exactly as-is (with the : and ' removed), otherwise a :kebab-case keyword becomes a KEBAB CASE (uppercase) string with hyphens replaced by spaces, e.g., :insert-into => INSERT INTO.

Any namespace qualifier is ignored.

Any ? is escaped to ??.

strop clj/s

(strop s x e)

Escape any embedded closing strop characters.

through-opts clj/s

If org.clojure/core.cache is available, resolves to a function that calls core.cache.wrapped/lookup-or-miss, otherwise to a function that throws an exception.

In ClojureScript, a resolves to a function that throws an exception because core.cache relies on JVM machinery and is Clojure-only.

upper-case clj/s≠

(upper-case s)

clj

Upper-case a string in Locale/US to avoid locale-specific capitalization.

cljs

In ClojureScript, just an alias for cljs.string/upper-case.