add Recent Comments page for moderators - closes ryanb#29

app/controllers/comments_controller.rb

@@ -1,6 +1,10 @@
 class CommentsController < ApplicationController
   load_and_authorize_resource
 
+  def index
+    @comments = @comments.recent.paginate(:page => params[:page], :per_page => 50)
+  end
+
   def new
     @comment = Comment.new(:parent_id => params[:parent_id], :episode_id => params[:episode_id], :user => current_user)
   end

app/models/ability.rb

@@ -22,7 +22,7 @@ def initialize(user)
       if user.moderator?
         can :show, :episodes
         can :update, :episodes, :notes
-        can [:update, :destroy], :comments
+        can [:update, :destroy, :index], :comments
         can :ban, :users
         can :revert, :versions
       end

app/views/comments/index.html.erb

@@ -0,0 +1,8 @@
+<% title "Recent Comments" %>
+
+<div class="content">
+  <div id="comments">
+    <%= render @comments %>
+    <%= will_paginate :previous_label => h("< Previous Page"),  :next_label => h("Next Page >") %>
+  </div>
+</div>

app/views/layouts/application.html.erb

@@ -39,6 +39,9 @@
         <li><%= link_to_unless_current "Browse Episodes", root_url %></li>
         <li><%= link_to_unless_current "About RailsCasts", about_path %></li>
         <li><%= link_to_unless_current "Feedback", feedback_path %></li>
+        <% if can? :index, :comments %>
+          <li><%= link_to_unless_current "Recent Comments", comments_path %></li>
+        <% end %>
       </ul>
       <%= form_tag episodes_path, :method => "get" do %>
         <%= text_field_tag :search, params[:search], :size => 35 %>

spec/models/ability_spec.rb

@@ -36,6 +36,7 @@
       @ability.should_not be_able_to(:create, :comments)
       @ability.should_not be_able_to(:update, :comments)
       @ability.should_not be_able_to(:destroy, :comments)
+      @ability.should_not be_able_to(:index, :comments)
     end
   end
 
@@ -108,9 +109,10 @@
       @ability.should be_able_to(:revert, :versions)
     end
 
-    it "can update and destroy any any comments" do
+    it "can list, update and destroy any comments" do
       @ability.should be_able_to(:update, Factory(:comment, :user => User.new, :created_at => 20.minutes.ago))
       @ability.should be_able_to(:destroy, Factory(:comment, :user => User.new, :created_at => 20.minutes.ago))
+      @ability.should be_able_to(:index, :comments)
     end
 
     it "can view episodes which are not yet published" do

spec/requests/comments_request_spec.rb

@@ -63,4 +63,11 @@
     click_on "undo"
     page.should have_content("Hello world!")
   end
+
+  it "lists recent comments" do
+    login Factory(:user, :admin => true)
+    comment = Factory(:comment, :content => "Hello world!")
+    visit comments_path
+    page.should have_content("Hello world!")
+  end
 end