74 lines
2.7 KiB
Haskell
74 lines
2.7 KiB
Haskell
module Handler.Tutorial.Users
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( getTUsersR, postTUsersR
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) where
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import Import
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import Utils.Form
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-- import Utils.DB
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import Handler.Utils
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import Handler.Utils.Tutorial
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import Database.Persist.Sql (deleteWhereCount)
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import qualified Data.CaseInsensitive as CI
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import Data.Function ((&))
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import qualified Data.Set as Set
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import qualified Data.Map as Map
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import qualified Database.Esqueleto as E
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import Handler.Course.Users
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data TutorialUserAction = TutorialUserSendMail | TutorialUserDeregister
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deriving (Eq, Ord, Enum, Bounded, Read, Show, Generic, Typeable)
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instance Universe TutorialUserAction
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instance Finite TutorialUserAction
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nullaryPathPiece ''TutorialUserAction $ camelToPathPiece' 2
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embedRenderMessage ''UniWorX ''TutorialUserAction id
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getTUsersR, postTUsersR :: TermId -> SchoolId -> CourseShorthand -> TutorialName -> Handler Html
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getTUsersR = postTUsersR
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postTUsersR tid ssh csh tutn = do
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(Entity tutid Tutorial{..}, (participantRes, participantTable)) <- runDB $ do
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tut@(Entity tutid _) <- fetchTutorial tid ssh csh tutn
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let colChoices = mconcat
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[ dbSelect (applying _2) id (return . view (hasEntity . _entityKey))
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, colUserName
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, colUserEmail
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, colUserMatriclenr
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, colUserDegreeShort
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, colUserField
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, colUserSemester
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]
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psValidator = def
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& defaultSortingByName
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& restrictSorting (\name _ -> none (== name) ["note"]) -- We need to be careful to restrict allowed sorting/filter to not expose sensitive information
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isInTut q = E.exists . E.from $ \tutorialParticipant ->
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E.where_ $ tutorialParticipant E.^. TutorialParticipantUser E.==. queryUser q E.^. UserId
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E.&&. tutorialParticipant E.^. TutorialParticipantTutorial E.==. E.val tutid
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cid <- getKeyBy404 $ TermSchoolCourseShort tid ssh csh
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table <- makeCourseUserTable cid (Map.fromList $ map (id &&& pure) universeF) isInTut colChoices psValidator
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return (tut, table)
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formResult participantRes $ \case
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(TutorialUserSendMail, selectedUsers) -> do
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cids <- traverse encrypt $ Set.toList selectedUsers :: Handler [CryptoUUIDUser]
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redirect (CTutorialR tid ssh csh tutn TCommR, [(toPathPiece GetRecipient, toPathPiece cID) | cID <- cids])
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(TutorialUserDeregister,selectedUsers) -> do
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nrDel <- runDB $ deleteWhereCount
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[ TutorialParticipantTutorial ==. tutid
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, TutorialParticipantUser <-. Set.toList selectedUsers
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]
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addMessageI Success $ MsgTutorialUsersDeregistered nrDel
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redirect $ CTutorialR tid ssh csh tutn TUsersR
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let heading = prependCourseTitle tid ssh csh $ CI.original tutorialName
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siteLayoutMsg heading $ do
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setTitleI heading
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$(widgetFile "tutorial-participants")
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