Use an Esqueleto query to efficiently fetch and render the user profiles on h-cards, rather than several queries and lots of fussing around
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3 changed files with 15 additions and 37 deletions
21
src/Site.hs
21
src/Site.hs
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module Site ( fetch ) where
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import Foundation ( Handler )
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import Model
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import Util ( compileMustache, entityToTuple )
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import Text.Mustache ( Template )
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import Yesod ( Key, runDB, selectList, (<-.) )
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import qualified Data.Map as M
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import qualified Data.Text as T
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compileTemplates :: M.Map (Key Site) Site -> M.Map (Key Site) (Site, Template)
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compileTemplates = fmap $ \site -> (site, compile site)
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where compile site = T.unpack (siteIcon site) `compileMustache` siteTemplate site
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fetch :: [Key Site] -> Handler (M.Map (Key Site) (Site, Template))
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fetch = fmap compileTemplates . fetchSites
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fetchSites :: [SiteId] -> Handler (M.Map (Key Site) Site)
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fetchSites siteIds = runDB $ M.fromList . map entityToTuple <$> selectList [SiteId <-. siteIds] []
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@ -5,31 +5,30 @@ module Widget.Card ( hCard ) where
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import Import
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import qualified Site
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import Database.Esqueleto ( (^.) )
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import qualified Database.Esqueleto as E
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import Text.Mustache ( substitute )
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import Util ( compileMustache )
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import Data.Maybe (fromJust)
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import Text.Mustache ( Template, substitute )
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import qualified Data.Map as M
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import qualified Data.Text as T
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arrangeProfiles :: [Profile] -> M.Map (Key Site) (Site, Template) -> [((Site, Template), Profile)]
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arrangeProfiles profiles sites = sortBy icon $ zip profileSites profiles
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where findSite = fromJust . flip M.lookup sites . profileSiteId
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profileSites = findSite <$> profiles
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icon = comparing $ siteName . fst . fst
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prettyPgp :: PgpKey -> Text
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prettyPgp = T.unwords . T.chunksOf 4 . pgpKeyFingerprint
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routeFromPgp :: PgpKey -> Route App
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routeFromPgp PgpKey { pgpKeyFingerprint = f } = staticR ["pgp", T.takeEnd 8 f ++ ".asc"]
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profileUrl :: Site -> Profile -> Text
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profileUrl site = substitute $ T.unpack (siteName site) `compileMustache` siteTemplate site
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hCard :: Entity User -> Widget
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hCard (Entity userId user) = do
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mcurrentRoute <- getCurrentRoute
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userProfiles <- handlerToWidget $ do
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profiles <- runDB $ map entityVal <$> selectList [ProfileUserId ==. userId] []
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sites <- Site.fetch $ profileSiteId <$> profiles
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return . arrangeProfiles profiles $ sites
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userProfiles <- handlerToWidget . runDB . E.select . E.from $ \(profile `E.InnerJoin` site) -> do
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E.on $ profile ^. ProfileSiteId E.==. site ^. SiteId
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E.where_ $ profile ^. ProfileUserId E.==. E.val userId
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E.orderBy [E.asc $ site ^. SiteName]
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return (site, profile)
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pgpKeys <- handlerToWidget . runDB $ map entityVal <$> selectList [PgpKeyUserId ==. userId] []
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$(widgetFile "mf2/h-card")
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@ -18,9 +18,9 @@
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<a .u-email itemprop="email" rel="me" href="mailto:#{userEmail user}">
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<i .fa.fa-envelope>
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#{userEmail user}
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$forall ((site, template), profile) <- userProfiles
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$forall (Entity _ site, Entity _ profile) <- userProfiles
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<li>
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<a .u-url itemprop="sameAs" rel="me" href="#{substitute template profile}">
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<a .u-url itemprop="sameAs" rel="me" href="#{profileUrl site profile}">
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<i .#{siteIcon site}>
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$maybe name <- profileDisplayName profile
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#{name}
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