Copyright	(c) 2019 Florian Grignon
License	BSD3
Maintainer	grignon.florian@gmail.com
Stability	experimental
Safe Haskell	None
Language	Haskell2010

Database.Poseidon

Description

This library provide a Simple and Extensible access to PostgreSQL.

Simple: Poseidon runs a SQL query and returns a set of custom datatype. **It is not an ORM.**

Extensible: As a user of the library, you can map your custom PostgreSQL type to your Haskell datatype easily, in a pluggable way (e.g. if you're using postgis, you will be most likely interested by poseidon-postgis, that maps GeoJSON WKT to GeospatialGeometry).

Documentation

newtype ExceptionText Source #

Constructors

ExceptionText Text

Instances

Eq ExceptionText Source #
Instance details Defined in Database.Poseidon Methods (==) :: ExceptionText -> ExceptionText -> Bool # (/=) :: ExceptionText -> ExceptionText -> Bool #
Show ExceptionText Source #
Instance details Defined in Database.Poseidon Methods showsPrec :: Int -> ExceptionText -> ShowS # show :: ExceptionText -> String # showList :: [ExceptionText] -> ShowS #
Exception ExceptionText Source #
Instance details Defined in Database.Poseidon Methods toException :: ExceptionText -> SomeException # fromException :: SomeException -> Maybe ExceptionText # displayException :: ExceptionText -> String #

data ExceptionPostgreSQL Source #

Constructors

ExceptionPGUniqueViolation
ExceptionPGJWTMalformed
ExceptionPGJWTInvalid
ExceptionPGUnknown

Instances

Eq ExceptionPostgreSQL Source #
Instance details Defined in Database.Poseidon Methods (==) :: ExceptionPostgreSQL -> ExceptionPostgreSQL -> Bool # (/=) :: ExceptionPostgreSQL -> ExceptionPostgreSQL -> Bool #
Show ExceptionPostgreSQL Source #
Instance details Defined in Database.Poseidon Methods showsPrec :: Int -> ExceptionPostgreSQL -> ShowS # show :: ExceptionPostgreSQL -> String # showList :: [ExceptionPostgreSQL] -> ShowS #
Exception ExceptionPostgreSQL Source #
Instance details Defined in Database.Poseidon Methods toException :: ExceptionPostgreSQL -> SomeException # fromException :: SomeException -> Maybe ExceptionPostgreSQL # displayException :: ExceptionPostgreSQL -> String #

queryFromText :: (HasEot a, EotDeserialize (Eot a)) => Connection -> Text -> [Maybe (Oid, ByteString, Format)] -> IO [a] Source #

class EotDeserialize eot where Source #

Methods

eotDeserialize :: Result -> CInt -> CInt -> IO eot Source #

Instances

EotDeserialize () Source #
Instance details Defined in Database.Poseidon Methods eotDeserialize :: Result -> CInt -> CInt -> IO () Source #
EotDeserialize Void Source #
Instance details Defined in Database.Poseidon Methods eotDeserialize :: Result -> CInt -> CInt -> IO Void Source #
(EotDeserialize this, EotDeserialize next) => EotDeserialize (Either this next) Source #
Instance details Defined in Database.Poseidon Methods eotDeserialize :: Result -> CInt -> CInt -> IO (Either this next) Source #
(Deserialize x, EotDeserialize xs) => EotDeserialize (x, xs) Source #
Instance details Defined in Database.Poseidon Methods eotDeserialize :: Result -> CInt -> CInt -> IO (x, xs) Source #

getBSValue :: Result -> CInt -> CInt -> IO (Maybe ByteString) Source #

class Deserialize a where Source #

Methods

deserialize :: Result -> CInt -> CInt -> IO a Source #

Instances

Deserialize Bool Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Bool Source #
Deserialize Double Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Double Source #
Deserialize Float Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Float Source #
Deserialize Integer Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Integer Source #
Deserialize () Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO () Source #
Deserialize ByteString Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO ByteString Source #
Deserialize ByteString Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO ByteString Source #
Deserialize Text Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Text Source #
Deserialize UTCTime Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO UTCTime Source #
Deserialize Value Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO Value Source #
Deserialize UUID Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO UUID Source #
Deserialize [Text] Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO [Text] Source #
Deserialize (Maybe Bool) Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO (Maybe Bool) Source #
Deserialize (Maybe Text) Source #
Instance details Defined in Database.Poseidon Methods deserialize :: Result -> CInt -> CInt -> IO (Maybe Text) Source #

getPGBool :: Get Bool Source #

genericDeserialize :: (HasEot a, EotDeserialize (Eot a)) => Result -> CInt -> CInt -> IO a Source #