「きにきじ」：今日の気になる記事をきまぐれにご紹介

NoMethodError in Main#index
undefined method `length' for #<Enumerable::Enumerator:0xb676c440>

<% @side_bar_template_name = 'side_bar' -%>
<div id="whats_new">
<h2>What's New</h2>
<ul>
<% @new_articles.each do |a| -%>
  <li><%= link_to h(a.heading), :action => a.place,
            :anchor => "article_#{a.id}" %>　
      <%= truncate(h(a.body), 20) %></li>
<% end -%>
</ul>
</div>
<div id="main">
<% @top_articles.each do |a| %>
  <h2><%= h(a.heading) %></h2>
  <%= simple_format(h(a.body)) %>
<% end -%>
</div>

module ActionView
  module Helpers
    module TextHelper
      def truncate(text, length = 30, truncate_string = "...")
        if text.nil? then return end
        l = length - truncate_string.chars.to_a.size
        (text.chars.to_a.size > length ? text.chars.to_a[0...l].join + truncate_string : text).to_s
      end
    end
  end
end

def truncate(text, length = 30, truncate_string = "...")
  if text.nil? then return end
  l = length - truncate_string.chars.to_a.size
  (text.chars.to_a.size > length ? text.chars.to_a[0...l].join + truncate_string : text).to_s
end