implement issue ruby-china#123 requirement.

README.markdown

@@ -18,6 +18,12 @@ This is the source code of [Ruby China Group](http://ruby-china.org)
   easy_install pygments # 或者 pip install pygments
   rake db:migrate
   ```
+  or you can just this issue 
+  ```
+  rake test:init
+  ```
+  to prepare all the config files and start essential services.
+
 ## Deploy
 
     $ cap deploy

Rakefile

@@ -21,4 +21,21 @@ namespace :resque do
 
     system("rm /var/run/god/resque-1.8.0*.pid")
   end
-end
+end
+
+namespace :test do
+  desc "preparing config files..."
+  task :prepare => :init do
+    ["config","mongoid","redis"].each do |cfgfile|
+      system("cp config/#{cfgfile}.yml.default config/#{cfgfile}.yml") unless File.exist?("config/#{cfgfile}.yml")
+    end 
+  end
+
+  desc "start essential services.."
+  task :init do
+    desc "starting resque..."
+    system("./script/resque start")
+    desc "starting sunspot..."
+    system("bundle exec rake sunspot:solr:start")  
+  end
+end

app/assets/javascripts/topics.coffee

@@ -85,6 +85,18 @@ window.Topics =
       Topics.preview($(textarea).val())
       false
 
+  onCloseWarning: (msg) ->
+    msg = "离开本页面将丢失未保存页面!" if !msg
+    $(window).bind("beforeunload", (e) ->
+      if $.browser.msie
+        e.returnValue = msg
+      else
+        return msg
+    )
+
+  offCloseWarning: () ->
+    $(window).unbind("beforeunload")
+
 # pages ready
 $(document).ready ->
   $("textarea").bind "keydown","ctrl+return",(el) ->

app/assets/javascripts/will_paginate.js

@@ -15,7 +15,6 @@
                     }
                 }
             }
-        end
     }
 
     function prevPage() {

app/views/topics/_form.html.erb

@@ -22,3 +22,19 @@
     </div>
   </fieldset>
 <% end %>
+<script type="text/javascript">
+  // not loaded jquery yet.
+  window.onload = function() {
+    // have loaed all js now.
+    Topics.onCloseWarning();
+    $('.actions>input[type=submit]').click(function(e){
+        Topics.offCloseWarning();
+    });
+    // onbeforeunload conflict with <a> element in IE!!!
+    // except a.href is not empty(such as #) or a.onclick return false
+    // "###" let <a> not be a anchor point
+    if ($.browser.msie) {
+      $('a[href^="javascript"]').attr('href','###');
+    }
+  }
+</script>