try to enable cache in heroku

app/assets/javascripts/application.js

@@ -1,2 +1,2 @@
 //= require jquery
-//= require jquery_ujs
+//= require jquery_ujs

config/environments/production.rb

@@ -5,11 +5,11 @@ Libr::Application.configure do
   config.cache_classes = true
 
   # Full error reports are disabled and caching is turned on
-  config.consider_all_requests_local       = false
+  config.consider_all_requests_local = false
   config.action_controller.perform_caching = true
 
   # Disable Rails's static asset server (Apache or nginx will already do this)
-  config.serve_static_assets = false
+  config.serve_static_assets = true
 
   # Compress JavaScripts and CSS
   config.assets.compress = true
@@ -67,25 +67,16 @@ Libr::Application.configure do
   # with SQLite, MySQL, and PostgreSQL)
   # config.active_record.auto_explain_threshold_in_seconds = 0.5
 
-  config.assets.precompile << '*.js'
-  config.assets.precompile << '*.css'
+  config.assets.precompile += '*.js'
+  config.assets.precompile += '*.css'
 
   config.eager_load = true
 
-  client = Dalli::Client.new(ENV["MEMCACHIER_SERVERS"],
-                             :value_max_bytes => 10485760)
+  client = Dalli::Client.new(ENV["MEMCACHIER_SERVERS"], :value_max_bytes => 10485760)
   config.action_dispatch.rack_cache = {
-      :metastore    => client,
-      :entitystore  => client
+      :metastore => client,
+      :entitystore => client
   }
-  config.static_cache_control = "public, max-age=2592000"
 
-  config.serve_static_assets = true
-
-  config.static_cache_control = "public, max-age=2592000"
-
-  config.assets.digest = true
-
-  config.action_controller.perform_caching = true
 
 end

public/assets/application-4206f6880c49062f142e2bb25d7647ce.css

@@ -1,161 +0,0 @@
-body {
-    padding-top: 60px;
-    padding-bottom: 20px;
-    text-shadow: white 0 1px 0;
-    font-weight: 100;
-    font: 10pt/1.6em Avenir, Lucida Grande, Calibri, Trebuchet MS, Helvetica, Arial, Hiragino Sans GB, WenQuanYi Micro Hei, STHeiti, Microsoft Jhenghei, Nanum Gothic, sans-serif;
-}
-
-.main {
-    min-height: 600px;
-}
-
-#footer {
-
-    bottom: 0;
-    background-color: whiteSmoke;
-    height: 60px;
-    display: inline-block;
-    width: 100%;
-    text-align: right;
-    padding-top: 10px;
-}
-
-p.title {
-    margin-top: 5px;
-}
-
-div.span2 {
-    text-align: center;
-
-}
-
-.cover {
-    position: relative;
-    -webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-    -moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-}
-
-.cover:before, .cover:after {
-    content: "";
-    position: absolute;
-    z-index: -1;
-    -webkit-box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
-    -moz-box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
-    box-shadow: 0 0 20px rgba(0, 0, 0, 0.8);
-    top: 10px;
-    bottom: 10px;
-    left: 0;
-    right: 0;
-    -moz-border-radius: 100px / 10px;
-    border-radius: 100px / 10px;
-}
-
-.cover:after {
-    right: 10px;
-    left: auto;
-    -webkit-transform: skew(8deg) rotate(3deg);
-    -moz-transform: skew(8deg) rotate(3deg);
-    -ms-transform: skew(8deg) rotate(3deg);
-    -o-transform: skew(8deg) rotate(3deg);
-    transform: skew(8deg) rotate(3deg);
-}
-
-.cover:hover {
-    box-shadow: 3px 3px 12px #999;
-}
-
-.book-name {
-    font-color: #5A5A5A;
-    text-align: center;
-}
-
-.rent-record {
-    margin-top: 1em;
-    margin-bottom: 1em;
-}
-
-.one-item {
-    width: 170px;
-    margin-left: 10px;
-    float: left;
-    height: 180px;
-    margin-bottom: 0.9em;
-    text-align: center;
-    margin-top: 0.9em;
-}
-
-.avatar {
-    float: left;
-    margin: 0;
-    display: block;
-
-}
-
-.my-label {
-    float: left;
-    margin-left: 4px;
-    margin-bottom: 4px;
-    display: block;
-}
-
-.my-borrow-btn {
-    margin-top: -20px;
-}
-
-.container-narrow {
-    margin: 30px auto 0 auto;
-    max-width: 700px;
-    min-height: 500px;
-    border: 1px solid #9EAA99;
-    border-radius: 3px;
-    box-shadow: 0 0 4px rgba(0, 0, 0, .25);
-    padding: 0 10px;
-}
-
-.cool-border {
-    border: 1px solid #9EAA99;
-    box-shadow: 0 0 4px rgba(0, 0, 0, .25);
-}
-
-.record-info {
-    color: #c67605;
-    font-size: 25px;
-    line-height: 35px;
-}
-
-form button.boxclose {
-    float: right;
-    margin-top: -10px;
-    margin-left: -30px;
-    cursor: pointer;
-    color: #fff;
-    border: 1px solid #AEAEAE;
-    border-radius: 30px;
-    background: #605F61;
-    font-size: 31px;
-    font-weight: bold;
-    display: inline-block;
-    line-height: 0px;
-    padding: 11px 2px;
-    z-index: 100;
-}
-
-.edit-user {
-    width: 450px;
-    text-align: center;
-    margin: 0 0 0 40px;
-}
-
-select {
-    width: 120px;
-}
-
-
-.borrow-btn{
-    margin: -0.79em 0 0 0.7em;
-}
-.a-record span{
-    margin-right: 20px;
-}

public/assets/manifest-eb02b60f85a557e4ae903800d755b9ab.json

@@ -1 +0,0 @@
-{"files":{"douban-2fcd299d2f4c8bbf4bd0a919632224f4.png":{"logical_path":"douban.png","mtime":"2013-04-16T23:40:27+08:00","size":921,"digest":"2fcd299d2f4c8bbf4bd0a919632224f4"},"qq_login-738a19206c58bc22ba3927f26b820fa3.png":{"logical_path":"qq_login.png","mtime":"2013-04-16T23:40:27+08:00","size":7406,"digest":"738a19206c58bc22ba3927f26b820fa3"},"rails-4c94998172307d81407ed7b88dc57530.png":{"logical_path":"rails.png","mtime":"2013-04-16T23:40:27+08:00","size":6646,"digest":"4c94998172307d81407ed7b88dc57530"},"weibo-697fd54134be3168cbbc916fffefa112.png":{"logical_path":"weibo.png","mtime":"2013-04-16T23:40:27+08:00","size":10447,"digest":"697fd54134be3168cbbc916fffefa112"},"application-6099eacd230a204911e9ff5535c1522b.js":{"logical_path":"application.js","mtime":"2013-07-19T21:55:38+08:00","size":288679,"digest":"6099eacd230a204911e9ff5535c1522b"},"application-4206f6880c49062f142e2bb25d7647ce.css":{"logical_path":"application.css","mtime":"2013-04-16T23:40:27+08:00","size":2995,"digest":"4206f6880c49062f142e2bb25d7647ce"}},"assets":{"douban.png":"douban-2fcd299d2f4c8bbf4bd0a919632224f4.png","qq_login.png":"qq_login-738a19206c58bc22ba3927f26b820fa3.png","rails.png":"rails-4c94998172307d81407ed7b88dc57530.png","weibo.png":"weibo-697fd54134be3168cbbc916fffefa112.png","application.js":"application-6099eacd230a204911e9ff5535c1522b.js","application.css":"application-4206f6880c49062f142e2bb25d7647ce.css"}}