gonito/Handler/EditSubmission.hs

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{-# LANGUAGE TupleSections, OverloadedStrings, RankNTypes #-}
module Handler.EditSubmission where
import Import
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import Handler.Common (checkIfCanEdit)
import Handler.SubmissionView
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import Yesod.Form.Bootstrap3 (BootstrapFormLayout (..), renderBootstrap3, bfs)
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import Handler.TagUtils
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import Data.Text as T
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getEditSubmissionR :: SubmissionId -> Handler Html
getEditSubmissionR submissionId = do
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submission <- runDB $ get404 submissionId
tags <- runDB $ getTags submissionId
let mTagsAsText = case tags of
[] -> Nothing
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_ -> Just $ T.intercalate ", " $ Import.map (tagName . entityVal . fst) tags
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(formWidget, formEnctype) <- generateFormPost $ editSubmissionForm (submissionDescription submission) mTagsAsText
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doEditSubmission formWidget formEnctype submissionId
postEditSubmissionR :: SubmissionId -> Handler Html
postEditSubmissionR submissionId = do
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submission <- runDB $ get404 submissionId
((result, _), _) <- runFormPost $ editSubmissionForm (submissionDescription submission) Nothing
let FormSuccess (description, tags) = result
isEditable <- checkIfCanEdit submissionId
if isEditable
then
runDB $ do
update submissionId [SubmissionDescription =. description]
sts <- selectList [SubmissionTagSubmission ==. submissionId] []
let currentTagIds = Import.map (submissionTagTag . entityVal) sts
addTags submissionId tags currentTagIds
return ()
else
do
setMessage $ toHtml ("Only owner can edit a submission!!!" :: Text)
return ()
getEditSubmissionR submissionId
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getPossibleAchievements userId submissionId = do
(Just submission) <- get submissionId
let challengeId = submissionChallenge submission
achievements <- selectList [AchievementChallenge ==. challengeId] []
workingOns <- mapM (\a -> getBy $ UniqueWorkingOnAchievementUser (entityKey a) userId) achievements
let rets = Import.zip achievements workingOns
return $ Import.map (\(a, (Just w)) -> (a, entityKey w)) $ Import.filter (\(_, mw) -> isJust mw) $ rets
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addTags submissionId tagsAsText existingOnes = do
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tids <- tagsAsTextToTagIds tagsAsText
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deleteWhere [SubmissionTagSubmission ==. submissionId, SubmissionTagTag /<-. tids]
_ <- mapM (\tid -> insert $ SubmissionTag submissionId tid Nothing) (Import.filter (not . (`elem` existingOnes)) tids)
return ()
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doEditSubmission formWidget formEnctype submissionId = do
submission <- runDB $ get404 submissionId
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submissionFull <- getFullInfo (Entity submissionId submission)
let view = queryResult submissionFull
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tagsAvailableAsJSON <- runDB $ getAvailableTagsAsJSON
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(Entity userId user) <- requireAuth
achievements <- runDB $ getPossibleAchievements userId submissionId
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defaultLayout $ do
setTitle "Edit a submission"
$(widgetFile "edit-submission")
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editSubmissionForm :: Text -> Maybe Text -> Form (Text, Maybe Text)
editSubmissionForm description mTags = renderBootstrap3 BootstrapBasicForm $ (,)
<$> areq textField (bfs MsgSubmissionDescription) (Just description)
<*> aopt textField (tagsfs MsgSubmissionTags) (Just mTags)