Database.Id.Class

Documentation

class HasId a

Class for types that have a database ID column

Associated Types

type IdData a :: *

newtype Id a

Constructors

Id

Fields

• unId :: IdData a

Instances

Eq (IdData a) => Eq (Id a)

Defined in Database.Id.Class

Methods

(==) :: Id a -> Id a -> Bool

(/=) :: Id a -> Id a -> Bool

Ord (IdData a) => Ord (Id a)

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)

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)

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)

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)

Defined in Database.Id.Class

Methods

toJSONKey :: ToJSONKeyFunction (Id a)

toJSONKeyList :: ToJSONKeyFunction [Id a]

FromJSON (IdData a) => FromJSON (Id a)

Defined in Database.Id.Class

Methods

parseJSON :: Value -> Parser (Id a)

parseJSONList :: Value -> Parser [Id a]

FromJSONKey (IdData a) => FromJSONKey (Id a)

Defined in Database.Id.Class

Methods

fromJSONKey :: FromJSONKeyFunction (Id a)

fromJSONKeyList :: FromJSONKeyFunction [Id a]

data IdValue a

Constructors

IdValue (Id a) a