* comment adding fixed

* JSON Encoding is broken in the current Hackage version of CouchDB, thus it is necessary to build it manually and to apply this fix:
https://github.com/tbh/haskell-couchdb/commit/fafd63a43607ab8d6306fa46a264f93d4921a26c

2 files changed, 11 insertions, 1 deletions

diff --git a/src/Blog.hs b/src/Blog.hs
index 201851cba01d..0b32b7b30bd6 100644
--- a/src/Blog.hs
+++ b/src/Blog.hs
@@ -14,7 +14,6 @@ import           Text.Blaze.Html5 (Html, (!), a, form, input, p, toHtml, label)
 import           Text.Blaze.Html5.Attributes (action, enctype, href, name, size, type_, value)
 import qualified Text.Blaze.Html5 as H
 import qualified Text.Blaze.Html5.Attributes as A
-import           System.Locale (defaultTimeLocale)
 
 import           Locales
 
@@ -40,9 +39,14 @@ data Entry = Entry{
 blogText :: (a -> String) -> a -> Text
 blogText f = T.pack . f
 
+
+-- custom list functions
 intersperse' :: a -> [a] -> [a]
 intersperse' sep l = sep : intersperse sep l
 
+replace :: Eq a => a -> a -> [a] -> [a]
+replace x y = map (\z -> if z == x then y else z)
+
 blogTemplate :: BlogLang -> Text -> Html -> Html
 blogTemplate lang t_append body = H.docTypeHtml $ do --add body
     H.head $ do
diff --git a/src/Main.hs b/src/Main.hs
index 769e2180a3aa..d84e1d5332d0 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -40,6 +40,7 @@ tazBlog = do
          , do dir " " $ nullDir
               seeOther ("https://plus.google.com/115916629925754851590" :: String) (toResponse ())
          , path $ \(id_ :: Int) -> getEntryLink id_
+         , path $ \(year :: Int) -> path $ \(month :: Int) -> path $ \(id_ :: String) -> formatOldLink year month id_
          , dir "res" $ serveDirectory DisableBrowsing [] "../res"
          , dir "notice" $ ok $ toResponse showSiteNotice
          , serveDirectory DisableBrowsing [] "../res"
@@ -57,6 +58,11 @@ blogHandler lang =
               showIndex lang
          ]
 
+formatOldLink :: Int -> Int -> String -> ServerPart Response
+formatOldLink y m id_ = 
+  flip seeOther (toResponse ()) $ 
+    concat $ intersperse' "/"  ["de", show y, show m, replace '.' '/' id_]
+
 showEntry :: BlogLang -> String -> ServerPart Response
 showEntry lang id_ = do
     entryJS <- liftIO $ runCouchDB' $ getDoc (db "tazblog") (doc id_)