Database.PostgreSQL.Simple.ToRow

The ToRow typeclass, for rendering a collection of parameters to a SQL query.

Predefined instances are provided for tuples containing up to ten elements.

Documentation

class ToRow a where

A collection type that can be turned into a list of rendering Actions.

Instances should use the toField method of the ToField class to perform conversion of each element of the collection.

You can derive ToRow for your data type using GHC generics, like this:

{-# LANGUAGE DeriveAnyClass #-}
{-# LANGUAGE DeriveGeneric  #-}

import GHC.Generics (Generic)
import Database.PostgreSQL.Simple (ToRow)

data User = User { name :: String, fileQuota :: Int }
  deriving (Generic, ToRow)

Note that this only works for product types (e.g. records) and does not support sum types or recursive types.

Minimal complete definition

Nothing

Methods

toRow :: a -> [Action]

default toRow :: (Generic a, GToRow (Rep a)) => a -> [Action]

Instances

ToRow ()

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: () -> [Action]

ToField a => ToRow (Only a)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: Only a -> [Action]

ToField a => ToRow [a]

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: [a] -> [Action]

(ToRow a, ToRow b) => ToRow (a :. b)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a :. b) -> [Action]

(ToField a, ToField b) => ToRow (a, b)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b) -> [Action]

(ToField a, ToField b, ToField c) => ToRow (a, b, c)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c) -> [Action]

(ToField a, ToField b, ToField c, ToField d) => ToRow (a, b, c, d)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e) => ToRow (a, b, c, d, e)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f) => ToRow (a, b, c, d, e, f)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g) => ToRow (a, b, c, d, e, f, g)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h) => ToRow (a, b, c, d, e, f, g, h)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i) => ToRow (a, b, c, d, e, f, g, h, i)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j) => ToRow (a, b, c, d, e, f, g, h, i, j)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k) => ToRow (a, b, c, d, e, f, g, h, i, j, k)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o, ToField p) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o, ToField p, ToField q) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o, ToField p, ToField q, ToField r) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o, ToField p, ToField q, ToField r, ToField s) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s) -> [Action]

(ToField a, ToField b, ToField c, ToField d, ToField e, ToField f, ToField g, ToField h, ToField i, ToField j, ToField k, ToField l, ToField m, ToField n, ToField o, ToField p, ToField q, ToField r, ToField s, ToField t) => ToRow (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t)

Defined in Database.PostgreSQL.Simple.ToRow

Methods

toRow :: (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t) -> [Action]