63 lines
2 KiB
Haskell
63 lines
2 KiB
Haskell
{-# LANGUAGE NoImplicitPrelude #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE TemplateHaskell #-}
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{-# LANGUAGE MultiParamTypeClasses #-}
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{-# LANGUAGE TypeFamilies #-}
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-- | Common handler functions.
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module Handler.Common where
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import Data.FileEmbed (embedFile)
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import Database.Esqueleto ( (^.) )
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import qualified Database.Esqueleto as E
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import Yesod.Sitemap
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import Import
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import Model.Entry.Kind ( allEntryKinds )
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import Widget.Entry ( entryR )
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-- These handlers embed files in the executable at compile time to avoid a
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-- runtime dependency, and for efficiency.
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getFaviconR :: Handler TypedContent
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getFaviconR = do cacheSeconds $ 60 * 60 * 24 * 30 -- cache for a month
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return $ TypedContent "image/x-icon"
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$ toContent $(embedFile "config/favicon.ico")
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getKeybaseR :: Handler TypedContent
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getKeybaseR = return $ TypedContent typePlain
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$ toContent $(embedFile "config/keybase.txt")
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getRobotsR :: Handler Text
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getRobotsR = robots SitemapR
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getSitemapR :: Handler TypedContent
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getSitemapR = do
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categories <- runDB . E.select . E.distinct . E.from $ \ec -> do
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E.orderBy [E.asc $ ec ^. EntryCategoryCategory]
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return $ ec ^. EntryCategoryCategory
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entries <- runDB $ selectList [] [Desc EntryPublished]
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sitemap $ do
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yield SitemapUrl
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{ sitemapLoc = HomeR
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, sitemapLastMod = Nothing
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, sitemapChangeFreq = Just Daily
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, sitemapPriority = Nothing
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}
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yieldMany $ sitemapUrl . CategoryR . E.unValue <$> categories
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yieldMany $ sitemapUrl . EntriesR <$> allEntryKinds
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yieldMany $ entryToSitemapUrl <$> entries
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sitemapUrl :: a -> SitemapUrl a
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sitemapUrl loc = SitemapUrl
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{ sitemapLoc = loc
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, sitemapLastMod = Nothing
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, sitemapChangeFreq = Nothing
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, sitemapPriority = Nothing
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}
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entryToSitemapUrl :: Entity Entry -> SitemapUrl (Route App)
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entryToSitemapUrl entry = (sitemapUrl $ entryR entry)
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{ sitemapLastMod = Just . entryUpdated . entityVal $ entry
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}
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