From 96093c9009554cd63431022635fccf54e47438e2 Mon Sep 17 00:00:00 2001
From: Vincent Ambo <viam@humac.com>
Date: Sat, 3 Mar 2012 16:39:15 +0100
Subject: * Pagination (finally!) * slight CSS change

---
 res/blogstyle.css |  3 ++-
 src/Blog.hs       | 25 +++++++++++++++++++------
 src/Locales.hs    | 12 ++++++++----
 src/Main.hs       | 21 ++++++++++++++-------
 4 files changed, 43 insertions(+), 18 deletions(-)

diff --git a/res/blogstyle.css b/res/blogstyle.css
index d830ee2e23d0..6315ffd06ff1 100644
--- a/res/blogstyle.css
+++ b/res/blogstyle.css
@@ -42,6 +42,7 @@ body {
 
 .centerbox {
 	text-align:center;
+    min-height: 45px;
 }
 
 .rightbox {
@@ -110,4 +111,4 @@ body {
 
 .innerBoxComments {
 	padding-left: 20px
-}
\ No newline at end of file
+}
diff --git a/src/Blog.hs b/src/Blog.hs
index 7b39fe5c9928..575ec04fcf8a 100644
--- a/src/Blog.hs
+++ b/src/Blog.hs
@@ -72,12 +72,15 @@ blogTemplate lang t_append body = H.docTypeHtml $ do --add body
             H.a ! A.href (toValue imu) ! A.target "_blank" $ "iMessage"
             "."
 
-renderEntries :: [Entry] -> String-> Html
-renderEntries entries topText = H.div ! A.class_ "innerBox" $ do
-    H.div ! A.class_ "innerBoxTop" $ toHtml topText
-    H.div ! A.class_ "innerBoxMiddle" $ do
-        H.ul $ 
-            sequence_ . reverse $ map showEntry entries
+renderEntries :: Bool -> [Entry] -> String -> Maybe Html -> Html
+renderEntries showAll entries topText footerLinks = 
+    H.div ! A.class_ "innerBox" $ do
+        H.div ! A.class_ "innerBoxTop" $ toHtml topText
+        H.div ! A.class_ "innerBoxMiddle" $ do
+            H.ul $ if' showAll
+                (sequence_ $ map showEntry entries)
+                (sequence_ . take 6 $ map showEntry entries)
+            getFooterLinks footerLinks
     where
         showEntry :: Entry -> Html
         showEntry e = H.li $ do 
@@ -86,6 +89,8 @@ renderEntries entries topText = H.div ! A.class_ "innerBox" $ do
         entryLink e = H.a ! A.href (toValue $ concat $ intersperse' "/" $ linkElems e) $
                         toHtml ("[" ++ show(length $ comments e) ++ "]")
         linkElems e = [show(lang e), show(year e), show(month e), show(day e), _id e]
+        getFooterLinks (Just h) = h
+        getFooterLinks Nothing = mempty
 
 renderEntry :: Entry -> Html
 renderEntry entry = H.div ! A.class_ "innerBox" $ do
@@ -114,6 +119,14 @@ renderComments comments lang = sequence_ $ map showComment comments
         showTime _ Nothing = "[???]" -- this can not happen??
         timeString = (showTime lang) . getTime
 
+showLinks :: Maybe Int -> BlogLang -> Html
+showLinks (Just i) lang = H.div ! A.class_ "centerbox" $ do
+    H.a ! A.href (toValue $ "/?page=" ++ show (i+1)) $ toHtml $ backText lang
+    toHtml (" -- " :: String)
+    H.a ! A.href (toValue $ "/?page=" ++ show (i-1)) $ toHtml $ nextText lang
+showLinks Nothing lang = H.div ! A.class_ "centerbox" $
+    H.a ! A.href "/?page=2" $ toHtml $  backText lang
+
 showFooter :: BlogLang -> String -> Html
 showFooter l v = H.div ! A.class_ "rightbox" ! A.style "text-align:right;" $ do
     toHtml ("Proudly made with " :: String)
diff --git a/src/Locales.hs b/src/Locales.hs
index c3d11bc887af..6fb5849b8c0f 100644
--- a/src/Locales.hs
+++ b/src/Locales.hs
@@ -17,6 +17,10 @@ version = ("2.2b" :: String)
 
 allLang = [EN, DE]
 
+if' :: Bool -> a -> a -> a
+if' True x _ = x
+if' False _ y = y
+
 blogTitle :: BlogLang -> String -> String
 blogTitle DE s = "Tazjins Blog" ++ s
 blogTitle EN s = "Tazjin's Blog" ++ s
@@ -59,11 +63,11 @@ getMonth l y m = monthName l m ++ show y
 entireMonth DE = "Ganzer Monat"
 entireMonth EN = "Entire month"
 
-prevMonth DE = "Früher"
-prevMonth EN = "Earlier"
+backText DE = "Früher"
+backText EN = "Earlier"
 
-nextMonth DE = "Später"
-nextMonth EN = "Later"
+nextText DE = "Später"
+nextText EN = "Later"
 
 -- contact information
 contactText DE = "Wer mich kontaktieren will: "
diff --git a/src/Main.hs b/src/Main.hs
index debf02e3cc18..89f6179237f5 100644
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -2,10 +2,11 @@
 
 module Main where
 
-import           Control.Monad (msum, mzero)
+import           Control.Applicative (optional)
+import           Control.Monad (msum)
 import           Data.Monoid (mempty)
 import           Data.ByteString.Char8 (ByteString)
-import           Data.Text hiding (map, length, zip, head)
+import           Data.Text hiding (map, length, zip, head, drop)
 import           Data.Time
 import           Database.CouchDB
 import           Happstack.Server
@@ -64,14 +65,20 @@ tryEntry (Just entry) = toResponse $ blogTemplate eLang eTitle $ renderEntry ent
 
 showIndex :: BlogLang -> ServerPart Response
 showIndex lang = do
-    entries <- getLatest lang [("limit", toJSON (7 :: Int)), ("descending", toJSON True)]
-    ok $ toResponse $ blogTemplate lang "" $ renderEntries entries (topText lang)
-
+    entries <- getLatest lang [("descending", showJSON True)]
+    (page :: Maybe Int) <- optional $ lookRead "page"
+    ok $ toResponse $ blogTemplate lang "" $ 
+        renderEntries False (eDrop page entries) (topText lang) (Just $ showLinks page lang)
+  where
+    eDrop :: Maybe Int -> [a] -> [a]
+    eDrop (Just i) = drop ((i-1) * 6)
+    eDrop Nothing = drop 0 
+    
 showMonth :: Int -> Int -> BlogLang -> ServerPart Response
 showMonth y m lang = do
-    entries <- getLatest lang $ makeQuery startkey endkey
+    entries <- getLatest lang $ ("descending", showJSON True) : makeQuery startkey endkey
     ok $ toResponse $ blogTemplate lang month 
-        $ renderEntries entries month
+        $ renderEntries True entries month Nothing
   where
     month = getMonth lang y  m
     startkey = JSArray [toJSON y, toJSON m]
-- 
cgit 1.4.1