Adding a "most popular posts" sidebar plugin that will use the Articl…

…e.bestof method.

This because I'm going to remove the Most Popular articles widget from the dashboard, as it's not really useful to manage a blog on a daily basis.

lib/popular_sidebar/Rakefile

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+require 'rake'
+require 'rake/testtask'
+require 'rake/rdoctask'
+
+desc 'Default: run unit tests.'
+task :default => :test
+
+desc 'Test the popular_sidebar plugin.'
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'lib'
+  t.pattern = 'test/**/*_test.rb'
+  t.verbose = true
+end
+
+desc 'Generate documentation for the popular_sidebar plugin.'
+Rake::RDocTask.new(:rdoc) do |rdoc|
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title    = 'ArchivesSidebar'
+  rdoc.options << '--line-numbers' << '--inline-source'
+  rdoc.rdoc_files.include('README')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end

lib/popular_sidebar/app/views/popular_sidebar/_content.html.erb

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+<h3 class="sidebar-title"><%= sidebar.title %></h3>
+<ul class='popular_sidebar'>
+  <% if sidebar.popular.empty? || sidebar.popular.size == 0 %>
+  <li class='alert'><%= _("Nothing to show yet") %> !</li>
+  <% else %>
+    <% sidebar.popular.each do |article| %>
+    <%= sprintf("%s (%s)", link_to_permalink(article, article.title), _("%d comments", article.comment_count)) %>
+    <% end %>
+  <% end %>
+  </li>
+</ul>

lib/popular_sidebar/init.rb

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+require 'sidebar'
+require 'popular_sidebar'

lib/popular_sidebar/lib/popular_sidebar.rb

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+class PopularSidebar < Sidebar
+  description 'Displays the most popular posts'
+  setting :title, 'Most popular'
+  setting :count,      5,   :label => 'Number articles'
+
+  attr_accessor :popular
+
+  def parse_request(contents, params)
+    @popular = Article.bestof.limit(5)
+  end
+end

lib/popular_sidebar/test/popular_sidebar_test.rb

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+require 'test/unit'
+require File.dirname(__FILE__) + '/../../../../test/test_helper'
+
+class PopularSidebarTest < Test::Unit::TestCase
+  def test_popular_is_available
+    assert Sidebar.available_sidebars.include?(PopularSidebar)
+  end
+end