fradrive/src/Handler/Utils/Form.hs
2019-03-23 23:00:32 +01:00

656 lines
25 KiB
Haskell

module Handler.Utils.Form
( module Handler.Utils.Form
, module Utils.Form
, MonadWriter(..)
) where
import Utils.Form
import Handler.Utils.Form.Types
import Handler.Utils.DateTime
import Import hiding (cons)
import qualified Data.Char as Char
import qualified Data.CaseInsensitive as CI
-- import Yesod.Core
import qualified Data.Text as T
-- import Yesod.Form.Types
import Yesod.Form.Functions (parseHelper)
import Yesod.Form.Bootstrap3
import Handler.Utils.Zip
import qualified Data.Conduit.List as C
import qualified Database.Esqueleto as E
import Data.Set (Set)
import qualified Data.Set as Set
import Data.Map (Map, (!))
import qualified Data.Map as Map
import Control.Monad.Trans.Writer (execWriterT, WriterT)
import Control.Monad.Except (runExceptT)
import Control.Monad.Writer.Class
import Data.Scientific (Scientific)
import Data.Ratio
import Text.Read (readMaybe)
import Utils.Lens
import Data.Aeson (eitherDecodeStrict')
import Data.Aeson.Text (encodeToLazyText)
----------------------------
-- Buttons (new version ) --
----------------------------
data ButtonDelete = BtnDelete
deriving (Enum, Eq, Ord, Bounded, Read, Show, Generic, Typeable)
instance Universe ButtonDelete
instance Finite ButtonDelete
nullaryPathPiece ''ButtonDelete $ camelToPathPiece' 1
embedRenderMessage ''UniWorX ''ButtonDelete id
instance Button UniWorX ButtonDelete where
btnClasses BtnDelete = [BCIsButton, BCDanger]
data ButtonRegister = BtnRegister | BtnDeregister
deriving (Enum, Eq, Ord, Bounded, Read, Show, Generic, Typeable)
instance Universe ButtonRegister
instance Finite ButtonRegister
nullaryPathPiece ''ButtonRegister $ camelToPathPiece' 1
embedRenderMessage ''UniWorX ''ButtonRegister id
instance Button UniWorX ButtonRegister where
btnClasses BtnRegister = [BCIsButton, BCPrimary]
btnClasses BtnDeregister = [BCIsButton, BCDanger]
data ButtonHijack = BtnHijack
deriving (Enum, Eq, Ord, Bounded, Read, Show, Generic, Typeable)
instance Universe ButtonHijack
instance Finite ButtonHijack
nullaryPathPiece ''ButtonHijack $ camelToPathPiece' 1
embedRenderMessage ''UniWorX ''ButtonHijack id
instance Button UniWorX ButtonHijack where
btnClasses BtnHijack = [BCIsButton, BCDefault]
data ButtonSubmitDelete = BtnSubmit' | BtnDelete'
deriving (Enum, Eq, Ord, Bounded, Read, Show, Generic, Typeable)
instance Universe ButtonSubmitDelete
instance Finite ButtonSubmitDelete
embedRenderMessage ''UniWorX ''ButtonSubmitDelete $ dropSuffix "'"
instance Button UniWorX ButtonSubmitDelete where
btnClasses BtnSubmit' = [BCIsButton, BCPrimary]
btnClasses BtnDelete' = [BCIsButton, BCDanger]
btnValidate _ BtnSubmit' = True
btnValidate _ BtnDelete' = False
nullaryPathPiece ''ButtonSubmitDelete $ camelToPathPiece' 1 . dropSuffix "'"
-- -- Looks like a button, but is just a link (e.g. for create course, etc.)
-- data LinkButton = LinkButton (Route UniWorX)
-- deriving (Enum, Eq, Ord, Bounded, Read, Show)
--
-- instance PathPiece LinkButton where
-- LinkButton route = ???
linkButton :: Widget -> [ButtonClass UniWorX] -> SomeRoute UniWorX -> Widget -- Alternative: Handler.Utils.simpleLink
linkButton lbl cls url = do
url' <- toTextUrl url
[whamlet|
$newline never
<a href=#{url'} class=#{unwords $ map toPathPiece cls} role=button>
^{lbl}
|]
-- buttonForm :: (Button UniWorX a, Finite a) => Markup -> MForm (HandlerT UniWorX IO) (FormResult a, Widget)
buttonForm :: (Button UniWorX a, Finite a) => Form a
buttonForm csrf = do
(res, ($ []) -> fViews) <- aFormToForm . disambiguateButtons $ combinedButtonFieldF ""
return (res, [whamlet|
$newline never
#{csrf}
$forall bView <- fViews
^{fvInput bView}
|])
------------
-- Fields --
------------
-- ciField moved to Utils.Form
routeField :: ( Monad m
, HandlerSite m ~ UniWorX
) => Field m (Route UniWorX)
routeField = checkMMap (return . maybe (Left MsgInvalidRoute) Right . fromPathPiece) toPathPiece textField
natFieldI :: (Monad m, Integral i, RenderMessage (HandlerSite m) msg, RenderMessage (HandlerSite m) FormMessage) => msg -> Field m i
natFieldI msg = checkBool (>= 0) msg intField
natField :: (Monad m, Integral i, RenderMessage (HandlerSite m) FormMessage) => Text -> Field m i
natField d = checkBool (>= 0) (T.append d " muss eine natürliche Zahl sein.") intField
natIntField ::(Monad m, RenderMessage (HandlerSite m) FormMessage) => Text -> Field m Integer
natIntField = natField
posIntField :: (Monad m, Integral i, RenderMessage (HandlerSite m) FormMessage) => Text -> Field m i
posIntField d = checkBool (> 0) (T.append d " muss eine positive Zahl sein.") intField
-- | Field to request integral number > 'm'
minIntField :: (Monad m, Integral i, Show i, RenderMessage (HandlerSite m) FormMessage) => i -> Text -> Field m i
minIntField m d = checkBool (> m) (T.concat [d," muss größer als ", T.pack $ show m, " sein."]) intField
pointsField :: (Monad m, HandlerSite m ~ UniWorX) => Field m Points --TODO allow fractions
pointsField = checkBool (>= 0) MsgPointsNotPositive Field{..}
where
fieldEnctype = UrlEncoded
fieldView theId name attrs val isReq
= [whamlet|
$newline never
<input id=#{theId} name=#{name} *{attrs} type=number step="0.01" :isReq:required value=#{either id tshow val}>
|]
fieldParse = parseHelper $ \t -> do
sci <- maybe (Left $ MsgInvalidNumber t) Right (readMaybe $ unpack t :: Maybe Scientific)
return . fromRational $ round (sci * 100) % 100
pointsFieldMax :: (Monad m, HandlerSite m ~ UniWorX) => Maybe Points -> Field m Points --TODO allow fractions
pointsFieldMax Nothing = pointsField
pointsFieldMax (Just maxp) = checkBool (<= maxp) (MsgPointsTooHigh maxp) pointsField
matriculationField :: Monad m => RenderMessage (HandlerSite m) FormMessage => Field m Text
matriculationField = textField -- no restrictions, since not everyone has a matriculation and pupils need special tags here
termsActiveField :: Field Handler TermId
termsActiveField = selectField $ optionsPersistKey [TermActive ==. True] [Desc TermStart] termName
termsAllowedField :: Field Handler TermId
termsAllowedField = selectField $ do
mayEditTerm <- isAuthorized TermEditR True
let termFilter | Authorized <- mayEditTerm = []
| otherwise = [TermActive ==. True]
optionsPersistKey termFilter [Desc TermStart] termName
termsSetField :: [TermId] -> Field Handler TermId
termsSetField tids = selectField $ optionsPersistKey [TermName <-. (unTermKey <$> tids)] [Desc TermStart] termName
-- termsSetField tids = selectFieldList [(unTermKey t, t)| t <- tids ]
termsActiveOrSetField :: [TermId] -> Field Handler TermId
termsActiveOrSetField tids = selectField $ optionsPersistKey ([TermActive ==.True] ||. [TermName <-. terms]) [Desc TermStart] termName
where terms = map unTermKey tids
-- termActiveOld :: Field Handler TermIdentifier
-- termActiveOld = convertField unTermKey TermKey $ selectField $ optionsPersistKey [TermActive ==. True] [Desc TermStart] termName
termNewField :: Field Handler TermIdentifier
termNewField = checkMMap (return.termFromText) termToText textField
schoolField :: Field Handler SchoolId
schoolField = selectField $ optionsPersistKey [] [Asc SchoolName] schoolName
schoolFieldEnt :: Field Handler (Entity School)
schoolFieldEnt = selectField $ optionsPersist [] [Asc SchoolName] schoolName
schoolFieldFor :: [SchoolId] -> Field Handler SchoolId
schoolFieldFor userSchools = selectField $ optionsPersistKey [SchoolShorthand <-. map unSchoolKey userSchools] [Asc SchoolName] schoolName
-- | Select one of the user's primary active courses, or from a given list of StudyFeatures (regardless of user)
studyFeaturesPrimaryFieldFor :: [StudyFeaturesId] -> Maybe UserId -> Field Handler (Maybe StudyFeaturesId)
studyFeaturesPrimaryFieldFor oldFeatures mbuid = selectField $ do
-- we need a join, so we cannot just use optionsPersistCryptoId
rawOptions <- runDB $ E.select $ E.from $ \(feature `E.InnerJoin` degree `E.InnerJoin` field) -> do
E.on $ feature E.^. StudyFeaturesField E.==. field E.^. StudyTermsId
E.on $ feature E.^. StudyFeaturesDegree E.==. degree E.^. StudyDegreeId
E.where_ $ ((feature E.^. StudyFeaturesId) `E.in_` E.valList oldFeatures)
E.||. isPrimaryActiveUserStudyFeature feature
return (feature E.^. StudyFeaturesId, degree, field)
MsgRenderer mr <- getMsgRenderer
mkOptionList . nonEmptyOptions (mr MsgNoPrimaryStudyField) <$> mapM (procOptions mr) rawOptions
where
isPrimaryActiveUserStudyFeature feature = case mbuid of
Nothing -> E.val False
(Just uid) -> feature E.^. StudyFeaturesUser E.==. E.val uid
E.&&. feature E.^. StudyFeaturesValid E.==. E.val True
E.&&. feature E.^. StudyFeaturesType E.==. E.val FieldPrimary
procOptions :: (StudyDegreeTerm -> Text) -> (E.Value StudyFeaturesId, Entity StudyDegree, Entity StudyTerms) -> Handler (Option (Maybe StudyFeaturesId))
procOptions mr (E.Value sfid, Entity _dgid sdegree, Entity _stid sterm) = do
cfid <- encrypt sfid
return Option
{ optionDisplay = mr $ StudyDegreeTerm sdegree sterm
, optionInternalValue = Just sfid
, optionExternalValue = toPathPiece (cfid :: CryptoID UUID StudyFeaturesId)
}
nonEmptyOptions :: Text -> [Option (Maybe StudyFeaturesId)] -> [Option (Maybe StudyFeaturesId)]
nonEmptyOptions emptyOpt opts
| null opts = [ Option
{ optionDisplay = emptyOpt
, optionInternalValue = Nothing
, optionExternalValue = "NoPrimaryStudyField"
} ]
| otherwise = opts
uploadModeField :: Field Handler UploadMode
uploadModeField = selectField optionsFinite
submissionModeField :: Field Handler SheetSubmissionMode
submissionModeField = selectField optionsFinite
pseudonymWordField :: Field Handler PseudonymWord
pseudonymWordField = checkMMap doCheck CI.original $ textField & addDatalist (return $ map CI.original pseudonymWordlist)
where
doCheck (CI.mk -> w)
| Just w' <- find (== w) pseudonymWordlist
= return $ Right w'
| otherwise
= return . Left $ MsgUnknownPseudonymWord (CI.original w)
zipFileField :: Bool -- ^ Unpack zips?
-> Field Handler (Source Handler File)
zipFileField doUnpack = Field{..}
where
fieldEnctype = Multipart
fieldParse _ files
| [f] <- files = return . Right . Just $ bool (yieldM . acceptFile) sourceFiles doUnpack f
| null files = return $ Right Nothing
| otherwise = return . Left $ SomeMessage MsgOnlyUploadOneFile
fieldView fieldId fieldName attrs _ req =
[whamlet|
$newline never
<input type=file ##{fieldId} *{attrs} name=#{fieldName} :req:required>
|]
multiFileField :: Handler (Set FileId) -> Field Handler (Source Handler (Either FileId File))
multiFileField permittedFiles' = Field{..}
where
fieldEnctype = Multipart
fieldParse vals files = return . Right . Just $ do
pVals <- lift permittedFiles'
let
decrypt' :: CryptoUUIDFile -> Handler (Maybe FileId)
decrypt' = fmap (either (\(_ :: CryptoIDError) -> Nothing) Just) . try . decrypt
yieldMany vals
.| C.filter (/= unpackZips)
.| C.map fromPathPiece .| C.catMaybes
.| C.mapMaybeM decrypt'
.| C.filter (`elem` pVals)
.| C.map Left
let
handleFile :: FileInfo -> Source Handler File
handleFile
| doUnpack = sourceFiles
| otherwise = yieldM . acceptFile
mapM_ handleFile files .| C.map Right
where
doUnpack = unpackZips `elem` vals
fieldView fieldId fieldName _attrs val req = do
pVals <- handlerToWidget permittedFiles'
sentVals <- for val $ \src -> handlerToWidget . sourceToList $ src .| takeLefts
let
toFUI (E.Value fuiId', E.Value fuiTitle) = do
fuiId <- encrypt fuiId'
fuiHtmlId <- newIdent
let fuiChecked
| Right sentVals' <- sentVals = fuiId' `elem` sentVals'
| otherwise = True
return FileUploadInfo{..}
fileInfos <- mapM toFUI <=< handlerToWidget . runDB . E.select . E.from $ \file -> do
E.where_ $ file E.^. FileId `E.in_` E.valList (setToList pVals)
E.orderBy [E.asc $ file E.^. FileTitle]
return (file E.^. FileId, file E.^. FileTitle)
$(widgetFile "multiFileField")
unpackZips :: Text
unpackZips = "unpack-zip"
takeLefts :: Monad m => ConduitM (Either b a) b m ()
takeLefts = awaitForever $ \case
Right _ -> return ()
Left r -> yield r
data SheetGrading' = Points' | PassPoints' | PassBinary'
deriving (Eq, Ord, Read, Show, Enum, Bounded)
instance Universe SheetGrading'
instance Finite SheetGrading'
nullaryPathPiece ''SheetGrading' (camelToPathPiece . dropSuffix "'")
embedRenderMessage ''UniWorX ''SheetGrading' ("SheetGrading" <>)
data SheetType' = NotGraded' | Normal' | Bonus' | Informational'
deriving (Eq, Ord, Read, Show, Enum, Bounded)
instance Universe SheetType'
instance Finite SheetType'
nullaryPathPiece ''SheetType' (camelToPathPiece . dropSuffix "'")
embedRenderMessage ''UniWorX ''SheetType' ("SheetType" <>)
data SheetGroup' = NoGroups' | Arbitrary' | RegisteredGroups'
deriving (Eq, Ord, Read, Show, Enum, Bounded)
instance Universe SheetGroup'
instance Finite SheetGroup'
nullaryPathPiece ''SheetGroup' (camelToPathPiece . dropSuffix "'")
embedRenderMessage ''UniWorX ''SheetGroup' (("SheetGroup" <>) . dropSuffix "'")
sheetGradingAFormReq :: FieldSettings UniWorX -> Maybe SheetGrading -> AForm Handler SheetGrading
sheetGradingAFormReq fs template = multiActionA fs selOptions (classify' <$> template)
where
selOptions = Map.fromList
[ ( Points', Points <$> maxPointsReq )
, ( PassPoints', PassPoints <$> maxPointsReq <*> passPointsReq )
, ( PassBinary', pure PassBinary)
]
classify' :: SheetGrading -> SheetGrading'
classify' = \case
Points {} -> Points'
PassPoints {} -> PassPoints'
PassBinary {} -> PassBinary'
maxPointsReq = apreq pointsField (fslI MsgSheetGradingMaxPoints) (template >>= preview _maxPoints)
passPointsReq = apreq pointsField (fslI MsgSheetGradingPassingPoints) (template >>= preview _passingPoints)
sheetTypeAFormReq :: FieldSettings UniWorX -> Maybe SheetType -> AForm Handler SheetType
sheetTypeAFormReq fs template = multiActionA fs selOptions (classify' <$> template)
where
selOptions = Map.fromList
[ ( Normal', Normal <$> gradingReq )
, ( Bonus' , Bonus <$> gradingReq )
, ( Informational', Informational <$> gradingReq )
, ( NotGraded', pure NotGraded )
]
gradingReq = sheetGradingAFormReq (fslI MsgSheetGrading
& setTooltip MsgSheetGradingInfo) (template >>= preview _grading)
classify' :: SheetType -> SheetType'
classify' = \case
Bonus {} -> Bonus'
Normal {} -> Normal'
Informational {} -> Informational'
NotGraded -> NotGraded'
sheetGroupAFormReq :: FieldSettings UniWorX -> Maybe SheetGroup -> AForm Handler SheetGroup
sheetGroupAFormReq FieldSettings{..} template = formToAForm $ do
let
selOptions = Map.fromList
[ ( Arbitrary', Arbitrary
<$> apreq (natField "Gruppengröße") (fslI MsgSheetGroupMaxGroupsize & noValidate) (preview _maxParticipants =<< template)
)
, ( RegisteredGroups', pure RegisteredGroups )
, ( NoGroups', pure NoGroups )
]
(res, selView) <- multiAction selOptions (classify' <$> template)
fvId <- maybe newIdent return fsId
MsgRenderer mr <- getMsgRenderer
return (res,
[ FieldView
{ fvLabel = toHtml $ mr fsLabel
, fvTooltip = toHtml . mr <$> fsTooltip
, fvId
, fvInput = selView
, fvErrors = case res of
FormFailure [e] -> Just $ toHtml e
_ -> Nothing
, fvRequired = True
}
])
where
classify' :: SheetGroup -> SheetGroup'
classify' = \case
Arbitrary _ -> Arbitrary'
RegisteredGroups -> RegisteredGroups'
NoGroups -> NoGroups'
{-
dayTimeField :: FieldSettings UniWorX -> Maybe UTCTime -> Form Handler UTCTime
dayTimeField fs mutc = do
let (mbDay,mbTime) = case mutcs of
Nothing -> return (Nothing,Nothing)
(Just utc) ->
(dayResult, dayView) <- mreq dayField fs
(result, view) <- (,) <$> dayField <*> timeField
where
(mbDay,mbTime)
| (Just utc) <- mutc =
let lt = utcToLocalTime ??? utcs
in (Just $ localDay lt, Just $ localTimeOfDay lt)
| otherwise = (Nothing,Nothing)
-}
utcTimeField :: (MonadHandler m, HandlerSite m ~ UniWorX) => Field m UTCTime
-- StackOverflow: dayToUTC <$> (areq (jqueryDayField def {...}) settings Nothing)
-- Browser returns LocalTime
utcTimeField = Field
{ fieldParse = parseHelperGen readTime
, fieldView = \theId name attrs val isReq -> do
val' <- either id id <$> traverse (formatTime' fieldTimeFormat) val
[whamlet|
$newline never
<input id="#{theId}" name="#{name}" *{attrs} type="datetime-local" :isReq:required value="#{val'}">
|]
, fieldEnctype = UrlEncoded
}
where
fieldTimeFormat :: String
--fieldTimeFormat = "%e.%m.%y %k:%M"
fieldTimeFormat = "%Y-%m-%dT%H:%M"
-- `defaultTimeLocale` is okay here, since `fieldTimeFormat` does not contain any
readTime :: Text -> Either UniWorXMessage UTCTime
readTime t =
case localTimeToUTC <$> parseTimeM True defaultTimeLocale fieldTimeFormat (T.unpack t) of
Just LTUUnique{_ltuResult} -> Right _ltuResult
Just LTUNone{} -> Left MsgIllDefinedUTCTime
Just LTUAmbiguous{} -> Left MsgAmbiguousUTCTime
Nothing -> Left MsgInvalidDateTimeFormat
langField :: Bool -- ^ Only allow values from `appLanguages`
-> Field (HandlerT UniWorX IO) Lang
langField False = checkBool (all ((&&) <$> not . null <*> T.all Char.isAlpha) . T.splitOn "-") MsgInvalidLangFormat $ textField & addDatalist (return $ toList appLanguages)
langField True = selectField . optionsPairs . map (MsgLanguage &&& id) $ toList appLanguages
jsonField :: ( ToJSON a, FromJSON a
, MonadHandler m
, RenderMessage (HandlerSite m) UniWorXMessage
, RenderMessage (HandlerSite m) FormMessage
)
=> Bool {-^ Hidden? -}
-> Field m a
jsonField hide = Field{..}
where
inputType :: Text
inputType
| hide = "hidden"
| otherwise = "text"
fieldParse [v] [] = return . bimap (SomeMessage . MsgJSONFieldDecodeFailure) Just . eitherDecodeStrict' $ encodeUtf8 v
fieldParse [] [] = return $ Right Nothing
fieldParse _ _ = return . Left $ SomeMessage MsgValueRequired
fieldView theId name attrs val isReq = liftWidgetT [whamlet|
<input id=#{theId} name=#{name} *{attrs} type=#{inputType} :isReq:required value=#{either fromStrict encodeToLazyText val}>
|]
fieldEnctype = UrlEncoded
secretJsonField :: ( ToJSON a, FromJSON a
, MonadHandler m
, HandlerSite m ~ UniWorX
)
=> Field m a
secretJsonField = Field{..}
where
fieldParse [v] [] = bimap (\_ -> SomeMessage MsgSecretJSONFieldDecryptFailure) Just <$> runExceptT (encodedSecretBoxOpen v)
fieldParse [] [] = return $ Right Nothing
fieldParse _ _ = return . Left $ SomeMessage MsgValueRequired
fieldView theId name attrs val _isReq = do
val' <- traverse (encodedSecretBox SecretBoxShort) val
[whamlet|
<input id=#{theId} name=#{name} *{attrs} type=hidden value=#{either id id val'}>
|]
fieldEnctype = UrlEncoded
boolField :: ( MonadHandler m
, HandlerSite m ~ UniWorX
)
=> Field m Bool
boolField = Field
{ fieldParse = \e _ -> return $ boolParser e
, fieldView = \theId name attrs val isReq -> $(widgetFile "widgets/fields/bool")
, fieldEnctype = UrlEncoded
}
where
boolParser [] = Right Nothing
boolParser (x:_) = case x of
"" -> Right Nothing
"none" -> Right Nothing
"yes" -> Right $ Just True
"on" -> Right $ Just True
"no" -> Right $ Just False
"true" -> Right $ Just True
"false" -> Right $ Just False
t -> Left $ SomeMessage $ MsgInvalidBool t
showVal = either $ const False
funcForm :: forall k v m.
( Finite k, Ord k
, MonadHandler m
, HandlerSite m ~ UniWorX
)
=> (k -> AForm m v) -> FieldSettings UniWorX -> Bool -> AForm m (k -> v)
funcForm mkForm FieldSettings{fsName = _, fsAttrs = _, ..} isRequired = formToAForm $ funcFieldView =<< renderAForm FormStandard funcForm' mempty
where
funcForm' :: AForm m (k -> v)
funcForm' = fmap (!) . sequenceA . Map.fromSet mkForm $ Set.fromList universeF
funcFieldView :: (FormResult (k -> v), Widget) -> MForm m (FormResult (k -> v), [FieldView UniWorX])
funcFieldView (res, fvInput) = do
mr <- getMessageRender
let fvLabel = toHtml $ mr fsLabel
fvTooltip = fmap (toHtml . mr) fsTooltip
fvRequired = isRequired
fvErrors
| FormFailure (err:_) <- res = Just $ toHtml err
| otherwise = Nothing
fvId <- maybe newIdent return fsId
return (res, pure FieldView{..})
-- areq nsField (fslI MsgNotificationSettings) (stgNotficationSettings <$> template)
fsm :: RenderMessage UniWorX msg => msg -> FieldSettings UniWorX -- DEPRECATED
fsm = bfs -- TODO: get rid of Bootstrap
fsb :: Text -> FieldSettings site -- DEPRECATED
fsb = bfs -- Just to avoid annoying Ambiguous Type Errors
fsUniq :: (Text -> Text) -> Text -> FieldSettings site
fsUniq mkUnique seed = "" { fsName = Just $ mkUnique seed }
optionsPersistCryptoId :: forall site backend a msg.
( YesodPersist site
, PersistQueryRead backend
, HasCryptoUUID (Key a) (HandlerT site IO)
, RenderMessage site msg
, YesodPersistBackend site ~ backend
, PersistRecordBackend a backend
)
=> [Filter a]
-> [SelectOpt a]
-> (a -> msg)
-> HandlerT site IO (OptionList (Entity a))
optionsPersistCryptoId filts ords toDisplay = fmap mkOptionList $ do
mr <- getMessageRender
pairs <- runDB $ selectList filts ords
cPairs <- forM pairs $ \e@(Entity key _) -> (,) <$> encrypt key <*> pure e
return $ map (\(cId, e@(Entity _key value)) -> Option
{ optionDisplay = mr (toDisplay value)
, optionInternalValue = e
, optionExternalValue = toPathPiece (cId :: CryptoID UUID (Key a))
}) cPairs
multiAction :: (RenderMessage UniWorX action, PathPiece action, Ord action, Eq action)
=> Map action (AForm (HandlerT UniWorX IO) a)
-> Maybe action
-> MForm (HandlerT UniWorX IO) (FormResult a, Widget)
multiAction acts defAction = do
mr <- getMessageRender
let
options = OptionList [ Option (mr a) a (toPathPiece a) | a <- Map.keys acts ] fromPathPiece
(actionRes, actionView) <- mreq (selectField $ return options) "" defAction
results <- mapM (fmap (over _2 ($ [])) . aFormToForm) acts
let mToWidget (_, []) = return Nothing
mToWidget aForm = Just . snd <$> renderAForm FormStandard (formToAForm $ return aForm) mempty
widgets <- mapM mToWidget results
let actionWidgets = Map.foldrWithKey accWidget [] widgets
accWidget _act Nothing = id
accWidget act (Just w) = cons $(widgetFile "widgets/multi-action/multi-action")
actionResults = Map.map fst results
return ((actionResults Map.!) =<< actionRes, $(widgetFile "widgets/multi-action/multi-action-collect"))
multiActionA :: (RenderMessage UniWorX action, PathPiece action, Ord action, Eq action)
=> FieldSettings UniWorX
-> Map action (AForm (HandlerT UniWorX IO) a)
-> Maybe action
-> AForm (HandlerT UniWorX IO) a
multiActionA FieldSettings{..} acts defAction = formToAForm $ do
(res, selView) <- multiAction acts defAction
fvId <- maybe newIdent return fsId
MsgRenderer mr <- getMsgRenderer
return (res,
[ FieldView
{ fvLabel = toHtml $ mr fsLabel
, fvTooltip = toHtml . mr <$> fsTooltip
, fvId
, fvInput = selView
, fvErrors = case res of
FormFailure [e] -> Just $ toHtml e
_ -> Nothing
, fvRequired = True
}
])
formResultModal :: (MonadHandler m, RedirectUrl (HandlerSite m) route) => FormResult a -> route -> (a -> WriterT [Message] m ()) -> m ()
formResultModal res finalDest handler = maybeT_ $ do
messages <- case res of
FormMissing -> mzero
FormFailure errs -> mapM_ (addMessage Error . toHtml) errs >> mzero
FormSuccess val -> lift . execWriterT $ handler val
isModal <- hasCustomHeader HeaderIsModal
if
| isModal -> sendResponse $ toJSON messages
| otherwise -> do
forM_ messages $ \Message{..} -> addMessage messageStatus messageContent
redirect finalDest