let config work!

app/controllers/config_controllser.coffee

@@ -0,0 +1,14 @@
+exports.getConfigController = (app) ->
+  {Config}                    = app.settings.models
+  return {
+    # POST /config
+    change: (req, res, next) ->
+      Config.Load (err, config) ->
+        return res.send err,500 if err
+        config[k]=v for k,v of req.body.config
+        config.save (err) ->
+          return res.send(err, 500) if err
+          app.set k,v for k,v of config
+          req.flash 'info', 'successfully changed'
+          res.redirect 'back'
+  }

app/views/config/_form.jade

@@ -1,4 +1,4 @@
-form(method='post', action='/config',accept-charset='utf-8')
+form(method='post', action='/config/',accept-charset='utf-8')
   fieldset
     .clearfix
       label(for='config[sitename]') Sitename (required)

config/routes.coffee

@@ -19,6 +19,7 @@ module.exports = (app) ->
   CommentsController   = controllersGetter.getCommentsController  app
   SessionController    = controllersGetter.getSessionController   app
   DashboardController  = controllersGetter.getDashboardController app
+  ConfigController     = controllersGetter.getConfigController    app
 
   # middleware for finding all posts published as individual pages
   findPages = PostsController.findPages
@@ -53,6 +54,8 @@ module.exports = (app) ->
   app.get  '/admin/config'                                  , DashboardController.config
   app.get  '/admin/new-post'                                , DashboardController.newPost
 
+  app.post '/config/'            , requireLogin             , ConfigController.change
+
   app.get  '/feed'                                          , PostsController.feed
 
   app.get  '/:slug.:format?'     , findPages                , PostsController.showPage