Database.PostgreSQL.Simple.HStore

Parsers and printers for hstore, a extended type bundled with PostgreSQL providing finite maps from text strings to text strings. See https://www.postgresql.org/docs/9.5/static/hstore.html for more information.

Note that in order to use this type, a database superuser must install it by running a sql script in the share directory. This can be done on PostgreSQL 9.1 and later with the command CREATE EXTENSION hstore. See https://www.postgresql.org/docs/9.5/static/contrib.html for more information.

Documentation

newtype HStoreList

Constructors

HStoreList

Fields

• fromHStoreList :: [(Text, Text)]

Instances

Show HStoreList

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

showsPrec :: Int -> HStoreList -> ShowS

show :: HStoreList -> String

showList :: [HStoreList] -> ShowS

ToField HStoreList

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toField :: HStoreList -> Action

FromField HStoreList

hstore

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

fromField :: FieldParser HStoreList

ToHStore HStoreList

hstore

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreList -> HStoreBuilder

newtype HStoreMap

Constructors

HStoreMap

Fields

• fromHStoreMap :: Map Text Text

Instances

Eq HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

(==) :: HStoreMap -> HStoreMap -> Bool

(/=) :: HStoreMap -> HStoreMap -> Bool

Ord HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

compare :: HStoreMap -> HStoreMap -> Ordering

(<) :: HStoreMap -> HStoreMap -> Bool

(<=) :: HStoreMap -> HStoreMap -> Bool

(>) :: HStoreMap -> HStoreMap -> Bool

(>=) :: HStoreMap -> HStoreMap -> Bool

max :: HStoreMap -> HStoreMap -> HStoreMap

min :: HStoreMap -> HStoreMap -> HStoreMap

Show HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

showsPrec :: Int -> HStoreMap -> ShowS

show :: HStoreMap -> String

showList :: [HStoreMap] -> ShowS

ToField HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toField :: HStoreMap -> Action

FromField HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

fromField :: FieldParser HStoreMap

ToHStore HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreMap -> HStoreBuilder

class ToHStore a where

Minimal complete definition

toHStore

Methods

toHStore :: a -> HStoreBuilder

Instances

ToHStore HStoreMap

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreMap -> HStoreBuilder

ToHStore HStoreList

hstore

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreList -> HStoreBuilder

ToHStore HStoreBuilder

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreBuilder -> HStoreBuilder

data HStoreBuilder

Represents valid hstore syntax.

Instances

Semigroup HStoreBuilder

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

(<>) :: HStoreBuilder -> HStoreBuilder -> HStoreBuilder

sconcat :: NonEmpty HStoreBuilder -> HStoreBuilder

stimes :: Integral b => b -> HStoreBuilder -> HStoreBuilder

Monoid HStoreBuilder

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

mempty :: HStoreBuilder

mappend :: HStoreBuilder -> HStoreBuilder -> HStoreBuilder

mconcat :: [HStoreBuilder] -> HStoreBuilder

ToField HStoreBuilder

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toField :: HStoreBuilder -> Action

ToHStore HStoreBuilder

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStore :: HStoreBuilder -> HStoreBuilder

toBuilder :: HStoreBuilder -> Builder

toLazyByteString :: HStoreBuilder -> ByteString

hstore :: (ToHStoreText a, ToHStoreText b) => a -> b -> HStoreBuilder

parseHStoreList :: ByteString -> Either String HStoreList

class ToHStoreText a where

Minimal complete definition

toHStoreText

Methods

toHStoreText :: a -> HStoreText

Instances

ToHStoreText ByteString

Assumed to be UTF-8 encoded

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: ByteString -> HStoreText

ToHStoreText ByteString

Assumed to be UTF-8 encoded

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: ByteString -> HStoreText

ToHStoreText Text

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: Text -> HStoreText

ToHStoreText Text

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: Text -> HStoreText

ToHStoreText HStoreText

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: HStoreText -> HStoreText

data HStoreText

Represents escape text, ready to be the key or value to a hstore value

Instances

Semigroup HStoreText

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

(<>) :: HStoreText -> HStoreText -> HStoreText

sconcat :: NonEmpty HStoreText -> HStoreText

stimes :: Integral b => b -> HStoreText -> HStoreText

Monoid HStoreText

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

mempty :: HStoreText

mappend :: HStoreText -> HStoreText -> HStoreText

mconcat :: [HStoreText] -> HStoreText

ToHStoreText HStoreText

Defined in Database.PostgreSQL.Simple.HStore.Implementation

Methods

toHStoreText :: HStoreText -> HStoreText