Preql.Wire.FromSql

Decoding values from Postgres wire format to Haskell.

Documentation

data FieldDecoder a

A FieldDecoder for a type a consists of an OID indicating the Postgres type which can be decoded, and a parser from the binary representation of that type to the Haskell representation.

Constructors

FieldDecoder Oid (BinaryParser a)

Instances

Functor FieldDecoder

Defined in Preql.Wire.FromSql

Methods

fmap :: (a -> b) -> FieldDecoder a -> FieldDecoder b

(<$) :: a -> FieldDecoder b -> FieldDecoder a

throwLocated :: UnlocatedFieldError -> InternalDecoder a

decodeVector :: RowDecoder a -> Result -> IO (Either QueryError (Vector a))

notNull :: FieldDecoder a -> RowDecoder a

nullable :: FieldDecoder a -> RowDecoder (Maybe a)

class FromSqlField a where

Methods

fromSqlField :: FieldDecoder a

Instances

FromSqlField Bool

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Bool

FromSqlField Double

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Double

FromSqlField Float

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Float

FromSqlField Int16

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Int16

FromSqlField Int32

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Int32

FromSqlField Int64

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Int64

FromSqlField ByteString

If you want to encode some more specific Haskell type via JSON, it is more efficient to use encode and jsonb_bytes directly, rather than this instance.

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder ByteString

FromSqlField ByteString

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder ByteString

FromSqlField Text

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Text

FromSqlField UTCTime

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder UTCTime

FromSqlField Value

If you want to encode some more specific Haskell type via JSON, it is more efficient to use fromSqlJsonField rather than this instance.

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Value

FromSqlField Text

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Text

FromSqlField String

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder String

FromSqlField UUID

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder UUID

FromSqlField Day

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder Day

FromSqlField TimeOfDay

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder TimeOfDay

FromSqlField TimeTZ

Defined in Preql.Wire.FromSql

Methods

fromSqlField :: FieldDecoder TimeTZ

class FromSql a where

Methods

fromSql :: RowDecoder a

Instances

FromSql Bool

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Bool

FromSql Double

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Double

FromSql Float

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Float

FromSql Int16

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Int16

FromSql Int32

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Int32

FromSql Int64

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Int64

FromSql ByteString

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder ByteString

FromSql ByteString

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder ByteString

FromSql Text

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Text

FromSql UTCTime

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder UTCTime

FromSql Value

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Value

FromSql Text

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Text

FromSql String

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder String

FromSql UUID

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder UUID

FromSql Day

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder Day

FromSql TimeOfDay

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder TimeOfDay

FromSql TimeTZ

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder TimeTZ

FromSqlField a => FromSql (Maybe a)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (Maybe a)

(FromSql a, FromSql b) => FromSql (a, b)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b)

(FromSql a, FromSql b, FromSql c) => FromSql (a, b, c)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c)

(FromSql a, FromSql b, FromSql c, FromSql d) => FromSql (a, b, c, d)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d)

(FromSql a, FromSql b, FromSql c, FromSql d, FromSql e) => FromSql (a, b, c, d, e)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e)

(FromSql a, FromSql b, FromSql c, FromSql d, FromSql e, FromSql f) => FromSql (a, b, c, d, e, f)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v)

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

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w)

(FromSql a, FromSql b, FromSql c, FromSql d, FromSql e, FromSql f, FromSql g, FromSql h, FromSql i, FromSql j, FromSql k, FromSql l, FromSql m, FromSql n, FromSql o, FromSql p, FromSql q, FromSql r, FromSql s, FromSql t, FromSql u, FromSql v, FromSql w, FromSql x) => FromSql (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x)

(FromSql a, FromSql b, FromSql c, FromSql d, FromSql e, FromSql f, FromSql g, FromSql h, FromSql i, FromSql j, FromSql k, FromSql l, FromSql m, FromSql n, FromSql o, FromSql p, FromSql q, FromSql r, FromSql s, FromSql t, FromSql u, FromSql v, FromSql w, FromSql x, FromSql y) => FromSql (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y)

Defined in Preql.Wire.FromSql

Methods

fromSql :: RowDecoder (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y)

fromSqlJsonField :: FromJSON a => FieldDecoder a