Data.Time.Month

Month data type.

Types

data Month

We explicitly enumerate month names. Using an Int is unsafe.

Constructors

January

February

March

April

May

June

July

August

September

October

November

December

Instances

Bounded Month

Defined in Data.Time.Month

Methods

minBound :: Month

maxBound :: Month

Enum Month

Defined in Data.Time.Month

Methods

succ :: Month -> Month

pred :: Month -> Month

toEnum :: Int -> Month

fromEnum :: Month -> Int

enumFrom :: Month -> [Month]

enumFromThen :: Month -> Month -> [Month]

enumFromTo :: Month -> Month -> [Month]

enumFromThenTo :: Month -> Month -> Month -> [Month]

Eq Month

Defined in Data.Time.Month

Methods

(==) :: Month -> Month -> Bool

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

Ord Month

Defined in Data.Time.Month

Methods

compare :: Month -> Month -> Ordering

(<) :: Month -> Month -> Bool

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

(>) :: Month -> Month -> Bool

(>=) :: Month -> Month -> Bool

max :: Month -> Month -> Month

min :: Month -> Month -> Month

Read Month

Defined in Data.Time.Month

Methods

readsPrec :: Int -> ReadS Month

readList :: ReadS [Month]

readPrec :: ReadPrec Month

readListPrec :: ReadPrec [Month]

Show Month

Defined in Data.Time.Month

Methods

showsPrec :: Int -> Month -> ShowS

show :: Month -> String

showList :: [Month] -> ShowS

Generic Month

Defined in Data.Time.Month

Associated Types

type Rep Month :: Type -> Type

Methods

from :: Month -> Rep Month x

to :: Rep Month x -> Month

Arbitrary Month

Defined in Data.Time.Month

Methods

arbitrary :: Gen Month

shrink :: Month -> [Month]

Hashable Month

Defined in Data.Time.Month

Methods

hashWithSalt :: Int -> Month -> Int

hash :: Month -> Int

NFData Month

Defined in Data.Time.Month

Methods

rnf :: Month -> ()

type Rep Month

Defined in Data.Time.Month

type Rep Month = D1 (MetaData "Month" "Data.Time.Month" "months-0.1-8UF2elrWYufCYn2Iw3nBtN" False) (((C1 (MetaCons "January" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "February" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "March" PrefixI False) (U1 :: Type -> Type))) :+: (C1 (MetaCons "April" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "May" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "June" PrefixI False) (U1 :: Type -> Type)))) :+: ((C1 (MetaCons "July" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "August" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "September" PrefixI False) (U1 :: Type -> Type))) :+: (C1 (MetaCons "October" PrefixI False) (U1 :: Type -> Type) :+: (C1 (MetaCons "November" PrefixI False) (U1 :: Type -> Type) :+: C1 (MetaCons "December" PrefixI False) (U1 :: Type -> Type)))))

data YearMonth

A month in Julian/Gregorian calendar.

Constructors

YearMonth

Fields

• monthYear :: !Integer
• monthName :: !Month

Instances

Enum YearMonth

Defined in Data.Time.Month

Methods

succ :: YearMonth -> YearMonth

pred :: YearMonth -> YearMonth

toEnum :: Int -> YearMonth

fromEnum :: YearMonth -> Int

enumFrom :: YearMonth -> [YearMonth]

enumFromThen :: YearMonth -> YearMonth -> [YearMonth]

enumFromTo :: YearMonth -> YearMonth -> [YearMonth]

enumFromThenTo :: YearMonth -> YearMonth -> YearMonth -> [YearMonth]

Eq YearMonth

Defined in Data.Time.Month

Methods

(==) :: YearMonth -> YearMonth -> Bool

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

Ord YearMonth

Defined in Data.Time.Month

Methods

compare :: YearMonth -> YearMonth -> Ordering

(<) :: YearMonth -> YearMonth -> Bool

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

(>) :: YearMonth -> YearMonth -> Bool

(>=) :: YearMonth -> YearMonth -> Bool

max :: YearMonth -> YearMonth -> YearMonth

min :: YearMonth -> YearMonth -> YearMonth

Show YearMonth

Doesn't print field names.

Defined in Data.Time.Month

Methods

showsPrec :: Int -> YearMonth -> ShowS

show :: YearMonth -> String

showList :: [YearMonth] -> ShowS

Generic YearMonth

Defined in Data.Time.Month

Associated Types

type Rep YearMonth :: Type -> Type

Methods

from :: YearMonth -> Rep YearMonth x

to :: Rep YearMonth x -> YearMonth

Arbitrary YearMonth

Defined in Data.Time.Month

Methods

arbitrary :: Gen YearMonth

shrink :: YearMonth -> [YearMonth]

Hashable YearMonth

Defined in Data.Time.Month

Methods

hashWithSalt :: Int -> YearMonth -> Int

hash :: YearMonth -> Int

ToJSON YearMonth

TODO: use builder if we really want speed

Defined in Data.Time.Month

Methods

toJSON :: YearMonth -> Value

toEncoding :: YearMonth -> Encoding

toJSONList :: [YearMonth] -> Value

toEncodingList :: [YearMonth] -> Encoding

ToJSONKey YearMonth

Defined in Data.Time.Month

Methods

toJSONKey :: ToJSONKeyFunction YearMonth

toJSONKeyList :: ToJSONKeyFunction [YearMonth]

FromJSON YearMonth

Defined in Data.Time.Month

Methods

parseJSON :: Value -> Parser YearMonth

parseJSONList :: Value -> Parser [YearMonth]

FromJSONKey YearMonth

Defined in Data.Time.Month

Methods

fromJSONKey :: FromJSONKeyFunction YearMonth

fromJSONKeyList :: FromJSONKeyFunction [YearMonth]

FromField YearMonth

Defined in Data.Time.Month

Methods

parseField :: Field -> Parser YearMonth

ToField YearMonth

Defined in Data.Time.Month

Methods

toField :: YearMonth -> Field

NFData YearMonth

Defined in Data.Time.Month

Methods

rnf :: YearMonth -> ()

ToHttpApiData YearMonth

Defined in Data.Time.Month

Methods

toUrlPiece :: YearMonth -> Text

toEncodedUrlPiece :: YearMonth -> Builder

toHeader :: YearMonth -> ByteString

toQueryParam :: YearMonth -> Text

FromHttpApiData YearMonth

Defined in Data.Time.Month

Methods

parseUrlPiece :: Text -> Either Text YearMonth

parseHeader :: ByteString -> Either Text YearMonth

parseQueryParam :: Text -> Either Text YearMonth

ToHtml YearMonth

Defined in Data.Time.Month

Methods

toHtml :: Monad m => YearMonth -> HtmlT m ()

toHtmlRaw :: Monad m => YearMonth -> HtmlT m ()

ToSchema YearMonth

Defined in Data.Time.Month

Methods

declareNamedSchema :: Proxy YearMonth -> Declare (Definitions Schema) NamedSchema

ToParamSchema YearMonth

Format "month" corresponds to yyyy-mm format.

Defined in Data.Time.Month

Methods

toParamSchema :: Proxy YearMonth -> ParamSchema t

type Rep YearMonth

Defined in Data.Time.Month

type Rep YearMonth = D1 (MetaData "YearMonth" "Data.Time.Month" "months-0.1-8UF2elrWYufCYn2Iw3nBtN" False) (C1 (MetaCons "YearMonth" PrefixI True) (S1 (MetaSel (Just "monthYear") NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 Integer) :*: S1 (MetaSel (Just "monthName") NoSourceUnpackedness SourceStrict DecidedStrict) (Rec0 Month)))

Conversion with Day

dayToYearMonth :: Day -> YearMonth

Extract Month from Day

>>> dayToYearMonth (read "2017-02-03")
YearMonth 2017 February

firstDayOfYearMonth :: YearMonth -> Day

First day of the month.

>>> firstDayOfYearMonth $ YearMonth 2017 February
2017-02-01

lastDayOfYearMonth :: YearMonth -> Day

Last day of the month

>>> lastDayOfYearMonth $ YearMonth 2017 February
2017-02-28

>>> lastDayOfYearMonth $ YearMonth 2016 February
2016-02-29

yearMonthInterval :: YearMonth -> Interval Day

Day interval of month

>>> yearMonthInterval $ YearMonth 2017 February
2017-02-01 ... 2017-02-28

Conversions with Text

yearMonthToText :: YearMonth -> Text

parseYearMonth :: Text -> Either String YearMonth