27 lines
775 B
Haskell
27 lines
775 B
Haskell
module Util ( compileMustache, entityToTuple, mapFirst ) where
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import Database.Persist ( Entity(..), Key )
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import Text.Mustache ( Template(..), compileTemplate )
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import Text.Mustache.Types ( Node(TextBlock) )
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import Text.Parsec.Error ( ParseError )
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import qualified Data.Text as T
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import qualified Data.HashMap.Lazy as M
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mapFirst :: (a -> a) -> [a] -> [a]
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mapFirst f (x:xs) = f x : xs
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mapFirst _ [] = []
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compileMustache :: String -> T.Text -> Template
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compileMustache n = either errorTemplate id . compileTemplate n
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errorTemplate :: ParseError -> Template
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errorTemplate err = Template
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{ name = "error"
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, ast = [TextBlock . T.pack $ show err]
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, partials = M.empty
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}
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entityToTuple :: Entity t -> (Key t, t)
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entityToTuple (Entity key value) = (key, value)
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