yammat/Handler/Modify.hs

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module Handler.Modify where
import Import
import Handler.Common
getModifyR :: BeverageId -> Handler Html
getModifyR bId = do
mBev <- runDB $ get bId
case mBev of
Just bev -> do
(modifyWidget, enctype) <- generateFormPost $ modifyForm bev
defaultLayout $ do
$(widgetFile "modify")
Nothing -> do
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setMessageI MsgItemUnknown
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redirect $ SummaryR
postModifyR :: BeverageId -> Handler Html
postModifyR bId = do
mBev <- runDB $ get bId
case mBev of
Just bev -> do
((res, _), _) <- runFormPost $ modifyForm bev
case res of
FormSuccess nBev -> do
runDB $ update bId
[ BeverageIdent =. beverageIdent nBev
, BeveragePrice =. beveragePrice nBev
, BeverageAmount =. beverageAmount nBev
, BeverageAlertAmount =. beverageAlertAmount nBev
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, BeverageMl =. beverageMl nBev
, BeverageAvatar =. beverageAvatar nBev
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]
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setMessageI MsgEditSuccess
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redirect $ SummaryR
_ -> do
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setMessageI MsgEditFail
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redirect $ SummaryR
Nothing -> do
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setMessageI MsgItemUnknown
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redirect $ SummaryR
modifyForm :: Beverage -> Form Beverage
modifyForm bev = renderDivs $ Beverage
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<$> areq textField (fieldSettingsLabel MsgName) (Just $ beverageIdent bev)
<*> areq currencyField (fieldSettingsLabel MsgPrice) (Just $ beveragePrice bev)
<*> areq amountField (fieldSettingsLabel MsgCurrentStock) (Just $ beverageAmount bev)
<*> areq amountField (fieldSettingsLabel MsgAnnouncedStock) (Just $ beverageAlertAmount bev)
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<*> areq currencyField (fieldSettingsLabel MsgVolume) (Just $ beverageMl bev)
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<*> aopt (selectField avatars) (fieldSettingsLabel MsgSelectAvatar) (Just $ beverageAvatar bev)
where
avatars = do
ents <- runDB $ selectList [] [Asc AvatarIdent]
optionsPairs $ map (\ent -> ((avatarIdent $ entityVal ent), entityKey ent)) ents
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getDeleteBeverageR :: BeverageId -> Handler Html
getDeleteBeverageR bId = do
mBev <- runDB $ get bId
case mBev of
Just bev -> do
runDB $ delete bId
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setMessageI MsgItemDeleted
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redirect $ HomeR
Nothing -> do
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setMessageI MsgItemUnknown
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redirect $ HomeR