Safe Haskell	None
Language	Haskell2010

Hasql.Mapping.IsScalar

Synopsis

class IsScalar a where
- encoder :: Value a
- decoder :: Value a

Documentation

class IsScalar a where #

Mapping to a scalar value. Anything but array.

The current Hasql API doesn't provide a typesafe boundary to enforce the value being scalar, so consider this to be a part of the contract to not define instances for array mappings using this class.

Methods

encoder :: Value a #

decoder :: Value a #

Instances

Instances details

IsScalar Value #	Maps to PostgreSQL `jsonb`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Value # decoder :: Value Value #
IsScalar ByteString #	Maps to PostgreSQL `bytea`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value ByteString # decoder :: Value ByteString #
IsScalar Int16 #	Maps to PostgreSQL `int2`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Int16 # decoder :: Value Int16 #
IsScalar Int32 #	Maps to PostgreSQL `int4`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Int32 # decoder :: Value Int32 #
IsScalar Int64 #	Maps to PostgreSQL `int8`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Int64 # decoder :: Value Int64 #
IsScalar IPRange #	Maps to PostgreSQL `inet`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value IPRange # decoder :: Value IPRange #
IsScalar Scientific #	Maps to PostgreSQL `numeric`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Scientific # decoder :: Value Scientific #
IsScalar Text #	Maps to PostgreSQL `text`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Text # decoder :: Value Text #
IsScalar Day #	Maps to PostgreSQL `date`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Day # decoder :: Value Day #
IsScalar DiffTime #	Maps to PostgreSQL `interval`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value DiffTime # decoder :: Value DiffTime #
IsScalar UTCTime #	Maps to PostgreSQL `timestamptz`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value UTCTime # decoder :: Value UTCTime #
IsScalar LocalTime #	Maps to PostgreSQL `timestamp`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value LocalTime # decoder :: Value LocalTime #
IsScalar TimeOfDay #	Maps to PostgreSQL `time`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value TimeOfDay # decoder :: Value TimeOfDay #
IsScalar UUID #	Maps to PostgreSQL `uuid`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value UUID # decoder :: Value UUID #
IsScalar Bool #	Maps to PostgreSQL `bool`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Bool # decoder :: Value Bool #
IsScalar Double #	Maps to PostgreSQL `float8`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Double # decoder :: Value Double #
IsScalar Float #	Maps to PostgreSQL `float4`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Float # decoder :: Value Float #
IsScalar Int #	Maps to PostgreSQL `int8`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value Int # decoder :: Value Int #
IsScalar (TimeOfDay, TimeZone) #	Maps to PostgreSQL `timetz`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value (TimeOfDay, TimeZone) # decoder :: Value (TimeOfDay, TimeZone) #
IsScalar (Word8, Word8, Word8, Word8, Word8, Word8) #	Maps to PostgreSQL `macaddr`.
Instance details Defined in Hasql.Mapping.IsScalar Methods encoder :: Value (Word8, Word8, Word8, Word8, Word8, Word8) # decoder :: Value (Word8, Word8, Word8, Word8, Word8, Word8) #