Safe Haskell	None
Language	Haskell2010

Database.Id.Class

Synopsis

class HasId a where
- type IdData a :: *
newtype Id a = Id {
- unId :: IdData a
}
data IdValue a = IdValue (Id a) a

Documentation

class HasId a Source #

Class for types that have a database ID column

Associated Types

type IdData a :: * Source #

newtype Id a Source #

Constructors

Id
Fields unId :: IdData a

Instances

Eq (IdData a) => Eq (Id a) Source #
Instance details Defined in Database.Id.Class Methods (==) :: Id a -> Id a -> Bool # (/=) :: Id a -> Id a -> Bool #
Ord (IdData a) => Ord (Id a) Source #
Instance details Defined in Database.Id.Class Methods compare :: Id a -> Id a -> Ordering # (<) :: Id a -> Id a -> Bool # (<=) :: Id a -> Id a -> Bool # (>) :: Id a -> Id a -> Bool # (>=) :: Id a -> Id a -> Bool # max :: Id a -> Id a -> Id a # min :: Id a -> Id a -> Id a #
Read (IdData a) => Read (Id a) Source #
Instance details Defined in Database.Id.Class Methods readsPrec :: Int -> ReadS (Id a) # readList :: ReadS [Id a] # readPrec :: ReadPrec (Id a) # readListPrec :: ReadPrec [Id a] #
Show (IdData a) => Show (Id a) Source #
Instance details Defined in Database.Id.Class Methods showsPrec :: Int -> Id a -> ShowS # show :: Id a -> String # showList :: [Id a] -> ShowS #
ToJSON (IdData a) => ToJSON (Id a) Source #
Instance details Defined in Database.Id.Class Methods toJSON :: Id a -> Value # toEncoding :: Id a -> Encoding # toJSONList :: [Id a] -> Value # toEncodingList :: [Id a] -> Encoding #
ToJSONKey (IdData a) => ToJSONKey (Id a) Source #
Instance details Defined in Database.Id.Class Methods toJSONKey :: ToJSONKeyFunction (Id a) # toJSONKeyList :: ToJSONKeyFunction [Id a] #
FromJSON (IdData a) => FromJSON (Id a) Source #
Instance details Defined in Database.Id.Class Methods parseJSON :: Value -> Parser (Id a) # parseJSONList :: Value -> Parser [Id a] #
FromJSONKey (IdData a) => FromJSONKey (Id a) Source #
Instance details Defined in Database.Id.Class Methods fromJSONKey :: FromJSONKeyFunction (Id a) # fromJSONKeyList :: FromJSONKeyFunction [Id a] #

data IdValue a Source #

Constructors

IdValue (Id a) a