ptkato

formAv :: Form Avaliacao
formAv = renderDivs $ Avaliacao <$>
    areq intField "Nota" Nothing <*>
    pure kludge <*>
    areq (selectField lv) "Livro:" Nothing <*>
    areq textField "Avaliação: " Nothing

kludge = case us of
    Just (Entity pid user) -> pid
    Nothing -> redirect LoginR

ptkato

alunos = [{nome:"Nilmar",notas:[2.5,6,6]},{nome:"Gustavo",notas:[6,4.5,7]},{nome:"Alexandre",notas:[10,10,0]},{nome:"Lionel Messi",notas:[5.9,5.9,5.9]}]
aprovados = alunos.filter(function(x) {
    return (x.notas.sort(function(a, b) {
        return a - b;
    }).splice(0, 2).reduce(function(y, z) {
        return y + z;
    }) / 2) >= 6;
});
console.log(aprovados);

ptkato

patchAgendamento :: Handler Value
patchAgendamento = do
    horarioNovo <- requireJsonBody :: Handler UTCTime
    valores <- runDB $ selectList [] [Asc AgendamentoHorario]
    runDB $ mapM_ (\chave -> update chave [AgendamentoHorario =. hoarioNovo]) valores
    sendStatusJSON noContent204 $ object emptyObject

ptkato

runDB $ do
    prods <- selectList [] []
    forns <- mapM (get . produtoFornecedorId . entityVal) prods
    return . zip prods $ catMaybes forns

ptkato

module Foundation where

import Yesod
import Yesod.Static
import Yesod.Auth
import Yesod.Auth.Email               as YAE
import Yesod.Auth.GoogleEmail2        as GE2
import Yesod.Auth.Facebook.ServerSide as YAF
import Yesod.Facebook
import Control.Applicative ((<$>), (<*>))