rails hit one
//has_and_belongs_to_many link by middle tablehas_many :moderators, :through => :moderatorships, :source => :user, :order => "#{User.table_name}.login" //increment the count automatic def hit! self.class.increment_counter :hits, idend<%= content_tag 'p', h(flash[:notice]), :class => 'notice' if flash[:notice] %><%= content_tag 'p', h(flash[:error]), :class => 'notice error' if flash[:error] %>//first<div id="right"> <%= yield :right %></div>//second<% content_for :right do %>......<% end %>//clear div<br style="clear:both;" /><%= submit_tag 'Post Topic'[], :or => link_to('Cancel'[], forum_path(@forum)) %>//hamlenvironment.rb中config.gem "haml"系统rails中安装了 haml gem即可在系统中使用问题：通过git或者把系统中的haml gem unpack到vendor/gems中，如果environment.rb中不配置config.gem，haml模板还是解析不了。在haml2.0中，first:html.erb ,second: html.haml
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